mirror of
https://github.com/explosion/spaCy.git
synced 2025-08-02 03:10:22 +03:00
Remove search functionality
This commit is contained in:
richardpaulhudson
parent
2116a71962
commit
e95dd432d1
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@ -193,23 +193,14 @@ def _verify_rich_config_group(
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label: str,
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lengths: Optional[List[int]],
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rows: Optional[List[int]],
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search_chars: Optional[str],
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is_search_char_group: bool,
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) -> None:
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if lengths is not None or rows is not None:
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if is_search_char_group and (search_chars is None or len(search_chars) == 0):
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raise ValueError(Errors.E1048.format(label=label))
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if search_chars is not None and len(search_chars) > 63:
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raise ValueError(Errors.E1049.format(label=label))
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if lengths is None or rows is None:
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raise ValueError(Errors.E1048.format(label=label))
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if len(lengths) != len(rows):
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raise ValueError(Errors.E1048.format(label=label))
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if any([length < 1 for length in lengths]):
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raise ValueError(Errors.E1048.format(label=label))
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elif search_chars is not None:
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raise ValueError(Errors.E1048.format(label=label))
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if lengths is not None:
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if lengths[-1] > 63:
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raise ValueError(Errors.E1049.format(label=label))
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if len(lengths) != len(set(lengths)) or lengths != sorted(lengths):
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@ -227,12 +218,6 @@ def RichMultiHashEmbed(
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pref_rows: Optional[List[int]] = None,
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suff_lengths: Optional[List[int]] = None,
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suff_rows: Optional[List[int]] = None,
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pref_search_chars: Optional[str] = None,
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pref_search_lengths: Optional[List[int]] = None,
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pref_search_rows: Optional[List[int]] = None,
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suff_search_chars: Optional[str] = None,
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suff_search_lengths: Optional[List[int]] = None,
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suff_search_rows: Optional[List[int]] = None,
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) -> Model[List[Doc], List[Floats2d]]:
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"""
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Construct an embedding layer with the features of `MultiHashEmbed` (see above)
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@ -240,37 +225,12 @@ def RichMultiHashEmbed(
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The fixed-length `PREFIX` and `SUFFIX` features used in `MultiHashEmbed`
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are sometimes not rich enough when working with languages with complex morphology,
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and this layer allows the specification of multiple prefixes and suffixes
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of any lengths.
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Additionally, it is possible to use as features the results of character
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searches of specified lengths. A list of search characters is specified; the
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characters in each word are examined in order starting at the beginning or at
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the end; and each character that matches one of the search characters is added,
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in order, to the string to be used as a feature. The search continues until
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either the search result string is full or the whole word has been examined.
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This is useful because some languages exhibit morphological alternations where
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one letter or letters regularly alternate with another letter or letters
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depending on the presence of some other letter before or after it, e.g. German
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plural nouns where the final two vowels are `ä-e` regularly correspond to
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singular lemmas where the `e` is no longer present and the `ä` has become `a`,
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e.g. `die Bäche` (plural) vs. `der Bach` (singular).
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For most languages used with spaCy, searching is likely to be useful starting
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at the end (`suff_*`), but the ability to search from the beginning (`pref_*`)
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is also offered for completeness. Search characters should consist of all
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characters that regularly alternate with other characters in the language in
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question or whose presence before or after characters that would otherwise
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alternate prevents the alternation from occurring, e.g. an `ä` in a German
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plural noun does not become `a` if it is the third or fourth vowel from the
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end of the word.
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of any lengths. Arrays specifying lengths must be in ascending order.
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There are a few rare situations where a graphical character is expressed as
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more than one UTF-8 character, e.g. *i* when representing the lower-case form
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of the Turkish letter *İ*. Such situations are supported, but the lengths of
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prefixes, suffixes and character search results may need to be increased
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accordingly.
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All arrays specifying lengths must be in ascending order.
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prefixes and suffixes may need to be increased accordingly.
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width (int): The output width. Also used as the width of the embedding tables.
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Recommended values are between 64 and 300.
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@ -290,39 +250,13 @@ def RichMultiHashEmbed(
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for each word, e.g. for the word `spaCy`:
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`[1, 3]` would lead to `y` and `yCa` being used as features.
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suff_rows (Optional[List[int]]): The number of rows for each of `suff_lengths`.
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pref_search_chars (Optional[str]): A string containing characters to search for
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starting from the beginning of each word.
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pref_search_lengths (Optional[List[int]]): The lengths of search result strings
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to use as features, where the searches start from the beginning of each word.
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pref_search_rows (Optional[List[int]]): The number of rows for each of
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`pref_search_lengths`.
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suff_search_chars (Optional[str]): A string containing characters to search for
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starting from the end of each word.
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suff_search_lengths (Optional[List[int]]): The lengths of search result strings
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to use as features, where the searches start from the end of each word.
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suff_search_rows (Optional[List[int]]): The number of rows for each of
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`suff_search_lengths`.
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"""
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if len(rows) != len(attrs):
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raise ValueError(f"Mismatched lengths: {len(rows)} vs {len(attrs)}")
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_verify_rich_config_group("prefix", pref_lengths, pref_rows, None, False)
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_verify_rich_config_group("suffix", suff_lengths, suff_rows, None, False)
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_verify_rich_config_group(
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"prefix search",
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pref_search_lengths,
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pref_search_rows,
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pref_search_chars,
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True,
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)
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_verify_rich_config_group(
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"suffix search",
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suff_search_lengths,
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suff_search_rows,
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suff_search_chars,
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True,
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)
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_verify_rich_config_group("prefix", pref_lengths, pref_rows)
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_verify_rich_config_group("suffix", suff_lengths, suff_rows)
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if "PREFIX" in attrs or "SUFFIX" in attrs:
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warnings.warn(Warnings.W124)
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@ -331,10 +265,6 @@ def RichMultiHashEmbed(
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rows.extend(pref_rows)
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if suff_rows is not None:
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rows.extend(suff_rows)
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if pref_search_rows is not None:
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rows.extend(pref_search_rows)
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if suff_search_rows is not None:
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rows.extend(suff_search_rows)
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embeddings: List[Model[Ints2d, Floats2d]] = [
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HashEmbed(width, row, column=i, seed=i + 7, dropout=0.0)
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@ -350,10 +280,6 @@ def RichMultiHashEmbed(
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case_sensitive=case_sensitive,
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pref_lengths=pref_lengths,
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suff_lengths=suff_lengths,
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pref_search_chars=pref_search_chars,
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pref_search_lengths=pref_search_lengths,
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suff_search_chars=suff_search_chars,
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suff_search_lengths=suff_search_lengths,
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),
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)
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@ -2,7 +2,6 @@ from typing import List, Optional, Callable, Tuple
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from thinc.types import Ints2d
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from thinc.api import Model, registry, get_current_ops
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from ..tokens import Doc
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from ..util import get_search_char_byte_arrays
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@registry.layers("spacy.RichFeatureExtractor.v1")
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@ -11,27 +10,7 @@ def RichFeatureExtractor(
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case_sensitive: bool,
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pref_lengths: Optional[List[int]] = None,
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suff_lengths: Optional[List[int]] = None,
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pref_search_chars: Optional[str] = None,
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pref_search_lengths: Optional[List[int]] = None,
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suff_search_chars: Optional[str] = None,
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suff_search_lengths: Optional[List[int]] = None,
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) -> Model[List[Doc], List[Ints2d]]:
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ops = get_current_ops()
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if pref_search_chars is not None:
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ps_search_chars, ps_width_offsets = get_search_char_byte_arrays(
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pref_search_chars, case_sensitive
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)
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else:
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ps_search_chars = bytes()
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ps_width_offsets = bytes()
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if suff_search_chars is not None:
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ss_search_chars, ss_width_offsets = get_search_char_byte_arrays(
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suff_search_chars, case_sensitive
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)
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else:
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ss_search_chars = bytes()
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ss_width_offsets = bytes()
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return Model(
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"extract_character_combination_hashes",
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forward,
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@ -39,16 +18,6 @@ def RichFeatureExtractor(
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"case_sensitive": case_sensitive,
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"p_lengths": bytes(pref_lengths) if pref_lengths is not None else bytes(),
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"s_lengths": bytes(suff_lengths) if suff_lengths is not None else bytes(),
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"ps_search_chars": ps_search_chars,
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"ps_width_offsets": ps_width_offsets,
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"ps_lengths": bytes(pref_search_lengths)
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if pref_search_lengths is not None
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else bytes(),
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"ss_search_chars": ss_search_chars,
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"ss_width_offsets": ss_width_offsets,
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"ss_lengths": bytes(suff_search_lengths)
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if suff_search_lengths is not None
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else bytes(),
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},
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)
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@ -60,24 +29,12 @@ def forward(
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case_sensitive: bool = model.attrs["case_sensitive"]
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p_lengths: bytes = model.attrs["p_lengths"]
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s_lengths: bytes = model.attrs["s_lengths"]
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ps_search_chars: bytes = model.attrs["ps_search_chars"]
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ps_width_offsets: bytes = model.attrs["ps_width_offsets"]
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ps_lengths: bytes = model.attrs["ps_lengths"]
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ss_search_chars: bytes = model.attrs["ss_search_chars"]
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ss_width_offsets: bytes = model.attrs["ss_width_offsets"]
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ss_lengths: bytes = model.attrs["ss_lengths"]
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features: List[Ints2d] = []
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for doc in docs:
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hashes = doc.get_character_combination_hashes(
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case_sensitive=case_sensitive,
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p_lengths=p_lengths,
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s_lengths=s_lengths,
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ps_search_chars=ps_search_chars,
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ps_width_offsets=ps_width_offsets,
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ps_lengths=ps_lengths,
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ss_search_chars=ss_search_chars,
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ss_width_offsets=ss_width_offsets,
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ss_lengths=ss_lengths,
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)
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features.append(ops.asarray2i(hashes, dtype="uint64"))
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@ -15,7 +15,6 @@ from spacy.lang.xx import MultiLanguage
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from spacy.language import Language
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from spacy.lexeme import Lexeme
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from spacy.tokens import Doc, Span, SpanGroup, Token
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from spacy.util import get_search_char_byte_arrays
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from spacy.vocab import Vocab
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from .test_underscore import clean_underscore # noqa: F401
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@ -1450,12 +1449,6 @@ def _encode_and_hash(input: str, *, reverse: bool = False) -> int:
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def test_get_character_combination_hashes_good_case(en_tokenizer, case_sensitive):
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doc = en_tokenizer("spaCy✨ and Prodigy")
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ps_search_chars, ps_width_offsets = get_search_char_byte_arrays(
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"Rp", case_sensitive
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)
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ss_search_chars, ss_width_offsets = get_search_char_byte_arrays(
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"xx✨rp", case_sensitive
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)
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hashes = doc.get_character_combination_hashes(
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case_sensitive=case_sensitive,
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p_lengths=bytes(
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@ -1473,17 +1466,6 @@ def test_get_character_combination_hashes_good_case(en_tokenizer, case_sensitive
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5,
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)
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),
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ps_search_chars=ps_search_chars,
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ps_width_offsets=ps_width_offsets,
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ps_lengths=bytes((2,)),
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ss_search_chars=ss_search_chars,
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ss_width_offsets=ss_width_offsets,
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ss_lengths=bytes(
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(
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1,
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2,
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)
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),
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)
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assert hashes[0][0] == _encode_and_hash("s")
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assert hashes[0][1] == _encode_and_hash("spa")
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@ -1492,9 +1474,6 @@ def test_get_character_combination_hashes_good_case(en_tokenizer, case_sensitive
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assert hashes[0][4] == _encode_and_hash("yCa" if case_sensitive else "yca")
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assert hashes[0][5] == _encode_and_hash("yCap" if case_sensitive else "ycap")
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assert hashes[0][6] == _encode_and_hash("yCaps" if case_sensitive else "ycaps")
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assert hashes[0][7] == _encode_and_hash("p")
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assert hashes[0][8] == _encode_and_hash("p")
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assert hashes[0][9] == _encode_and_hash("p")
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assert hashes[1][0] == _encode_and_hash("✨")
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assert hashes[1][1] == _encode_and_hash("✨")
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assert hashes[1][2] == _encode_and_hash("✨")
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@ -1502,9 +1481,6 @@ def test_get_character_combination_hashes_good_case(en_tokenizer, case_sensitive
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assert hashes[1][4] == _encode_and_hash("✨", reverse=True)
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assert hashes[1][5] == _encode_and_hash("✨", reverse=True)
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assert hashes[1][6] == _encode_and_hash("✨", reverse=True)
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assert hashes[1][7] == EMPTY_HASH_VALUE
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assert hashes[1][8] == _encode_and_hash("✨")
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assert hashes[1][9] == _encode_and_hash("✨")
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assert hashes[2][0] == _encode_and_hash("a")
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assert hashes[2][1] == _encode_and_hash("and")
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assert hashes[2][2] == _encode_and_hash("and")
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@ -1512,9 +1488,6 @@ def test_get_character_combination_hashes_good_case(en_tokenizer, case_sensitive
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assert hashes[2][4] == _encode_and_hash("dna")
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assert hashes[2][5] == _encode_and_hash("dna")
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assert hashes[2][6] == _encode_and_hash("dna")
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assert hashes[2][7] == EMPTY_HASH_VALUE
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assert hashes[2][8] == EMPTY_HASH_VALUE
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assert hashes[2][9] == EMPTY_HASH_VALUE
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assert hashes[3][0] == _encode_and_hash("P" if case_sensitive else "p")
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assert hashes[3][1] == _encode_and_hash("Pro" if case_sensitive else "pro")
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assert hashes[3][2] == _encode_and_hash("Prod" if case_sensitive else "prod")
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@ -1522,21 +1495,10 @@ def test_get_character_combination_hashes_good_case(en_tokenizer, case_sensitive
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assert hashes[3][4] == _encode_and_hash("ygi")
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assert hashes[3][5] == _encode_and_hash("ygid")
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assert hashes[3][6] == _encode_and_hash("ygido")
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assert (
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hashes[3][7] == EMPTY_HASH_VALUE if case_sensitive else _encode_and_hash("pr")
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)
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assert hashes[3][8] == _encode_and_hash("r")
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if case_sensitive:
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assert hashes[3][9] == _encode_and_hash("r")
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else:
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assert hashes[3][9] == _encode_and_hash("rp")
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def test_get_character_combination_hashes_good_case_partial(en_tokenizer):
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doc = en_tokenizer("spaCy✨ and Prodigy")
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ps_search_chars, ps_width_offsets = get_search_char_byte_arrays("rp", False)
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hashes = doc.get_character_combination_hashes(
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case_sensitive=False,
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p_lengths=bytes(),
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@ -1548,34 +1510,24 @@ def test_get_character_combination_hashes_good_case_partial(en_tokenizer):
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5,
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)
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),
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ps_search_chars=ps_search_chars,
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ps_width_offsets=ps_width_offsets,
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ps_lengths=bytes((2,)),
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ss_search_chars=bytes(),
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ss_width_offsets=bytes(),
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ss_lengths=bytes(),
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)
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assert hashes[0][0] == _encode_and_hash("yc")
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assert hashes[0][1] == _encode_and_hash("yca")
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assert hashes[0][2] == _encode_and_hash("ycap")
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assert hashes[0][3] == _encode_and_hash("ycaps")
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assert hashes[0][4] == _encode_and_hash("p")
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assert hashes[1][0] == _encode_and_hash("✨", reverse=True)
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assert hashes[1][1] == _encode_and_hash("✨", reverse=True)
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assert hashes[1][2] == _encode_and_hash("✨", reverse=True)
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assert hashes[1][3] == _encode_and_hash("✨", reverse=True)
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assert hashes[1][4] == EMPTY_HASH_VALUE
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assert hashes[2][0] == _encode_and_hash("dn")
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assert hashes[2][1] == _encode_and_hash("dna")
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assert hashes[2][2] == _encode_and_hash("dna")
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assert hashes[2][3] == _encode_and_hash("dna")
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assert hashes[2][4] == EMPTY_HASH_VALUE
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assert hashes[3][0] == _encode_and_hash("yg")
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assert hashes[3][1] == _encode_and_hash("ygi")
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assert hashes[3][2] == _encode_and_hash("ygid")
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assert hashes[3][3] == _encode_and_hash("ygido")
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assert hashes[3][4] == _encode_and_hash("pr")
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def test_get_character_combination_hashes_various_lengths(en_tokenizer):
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@ -1588,12 +1540,6 @@ def test_get_character_combination_hashes_various_lengths(en_tokenizer):
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case_sensitive=False,
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p_lengths=bytes((p_length,)),
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s_lengths=bytes((s_length,)),
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ps_search_chars=bytes(),
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ps_width_offsets=bytes(),
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ps_lengths=bytes(),
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ss_search_chars=bytes(),
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ss_width_offsets=bytes(),
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ss_lengths=bytes(),
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)
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assert hashes[0][0] == _encode_and_hash("sp𐌞cé"[:p_length])
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@ -1605,7 +1551,6 @@ def test_get_character_combination_hashes_turkish_i_with_dot(
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en_tokenizer, case_sensitive
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):
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doc = en_tokenizer("İ".lower() + "İ")
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search_chars, width_offsets = get_search_char_byte_arrays("İ", case_sensitive)
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hashes = doc.get_character_combination_hashes(
|
||||
case_sensitive=case_sensitive,
|
||||
p_lengths=bytes(
|
||||
|
|
@ -1624,26 +1569,6 @@ def test_get_character_combination_hashes_turkish_i_with_dot(
|
|||
4,
|
||||
)
|
||||
),
|
||||
ps_search_chars=search_chars,
|
||||
ps_width_offsets=width_offsets,
|
||||
ps_lengths=bytes(
|
||||
(
|
||||
1,
|
||||
2,
|
||||
3,
|
||||
4,
|
||||
)
|
||||
),
|
||||
ss_search_chars=search_chars,
|
||||
ss_width_offsets=width_offsets,
|
||||
ss_lengths=bytes(
|
||||
(
|
||||
1,
|
||||
2,
|
||||
3,
|
||||
4,
|
||||
)
|
||||
),
|
||||
)
|
||||
|
||||
COMBINING_DOT_ABOVE = b"\xcc\x87".decode("UTF-8")
|
||||
|
|
@ -1656,10 +1581,6 @@ def test_get_character_combination_hashes_turkish_i_with_dot(
|
|||
assert hashes[0][5] == _encode_and_hash(COMBINING_DOT_ABOVE + "İ", reverse=True)
|
||||
assert hashes[0][6] == _encode_and_hash("İ".lower() + "İ", reverse=True)
|
||||
assert hashes[0][7] == _encode_and_hash("İ".lower() + "İ", reverse=True)
|
||||
assert hashes[0][8] == _encode_and_hash("İ")
|
||||
assert hashes[0][9] == _encode_and_hash("İ")
|
||||
assert hashes[0][12] == _encode_and_hash("İ")
|
||||
assert hashes[0][13] == _encode_and_hash("İ")
|
||||
|
||||
else:
|
||||
assert hashes[0][2] == _encode_and_hash("İ".lower() + "i")
|
||||
|
|
@ -1670,16 +1591,6 @@ def test_get_character_combination_hashes_turkish_i_with_dot(
|
|||
COMBINING_DOT_ABOVE + "İ".lower(), reverse=True
|
||||
)
|
||||
assert hashes[0][7] == _encode_and_hash("İ".lower() * 2, reverse=True)
|
||||
assert hashes[0][8] == _encode_and_hash("i")
|
||||
assert hashes[0][9] == _encode_and_hash("İ".lower())
|
||||
assert hashes[0][10] == _encode_and_hash("İ".lower() + "i")
|
||||
assert hashes[0][11] == _encode_and_hash("İ".lower() * 2)
|
||||
assert hashes[0][12] == _encode_and_hash(COMBINING_DOT_ABOVE)
|
||||
assert hashes[0][13] == _encode_and_hash(COMBINING_DOT_ABOVE + "i")
|
||||
assert hashes[0][14] == _encode_and_hash(
|
||||
COMBINING_DOT_ABOVE + "i" + COMBINING_DOT_ABOVE
|
||||
)
|
||||
assert hashes[0][15] == _encode_and_hash((COMBINING_DOT_ABOVE + "i") * 2)
|
||||
|
||||
|
||||
@pytest.mark.parametrize("case_sensitive", [True, False])
|
||||
|
|
@ -1693,33 +1604,17 @@ def test_get_character_combination_hashes_string_store_spec_cases(
|
|||
assert len(long_word) > 255
|
||||
doc = en_tokenizer(" ".join((symbol, short_word, normal_word, long_word)))
|
||||
assert len(doc) == 4
|
||||
ps_search_chars, ps_width_offsets = get_search_char_byte_arrays("E", case_sensitive)
|
||||
hashes = doc.get_character_combination_hashes(
|
||||
case_sensitive=case_sensitive,
|
||||
p_lengths=bytes((2,)),
|
||||
s_lengths=bytes((2,)),
|
||||
ps_search_chars=ps_search_chars,
|
||||
ps_width_offsets=ps_width_offsets,
|
||||
ps_lengths=bytes((2,)),
|
||||
ss_search_chars=bytes(),
|
||||
ss_width_offsets=bytes(),
|
||||
ss_lengths=bytes(),
|
||||
)
|
||||
assert hashes[0][0] == _encode_and_hash("FL" if case_sensitive else "fl")
|
||||
assert hashes[0][1] == _encode_and_hash("91")
|
||||
assert hashes[0][2] == EMPTY_HASH_VALUE
|
||||
assert hashes[1][0] == _encode_and_hash("be")
|
||||
assert hashes[1][1] == _encode_and_hash("ee")
|
||||
if case_sensitive:
|
||||
assert hashes[1][2] == EMPTY_HASH_VALUE
|
||||
else:
|
||||
assert hashes[1][2] == _encode_and_hash("ee")
|
||||
assert hashes[2][0] == hashes[3][0] == _encode_and_hash("se")
|
||||
assert hashes[2][1] == hashes[3][1] == _encode_and_hash("yt")
|
||||
if case_sensitive:
|
||||
assert hashes[2][2] == hashes[3][2] == EMPTY_HASH_VALUE
|
||||
else:
|
||||
assert hashes[2][2] == hashes[3][2] == _encode_and_hash("ee")
|
||||
|
||||
|
||||
def test_character_combination_hashes_empty_lengths(en_tokenizer):
|
||||
|
|
@ -1728,10 +1623,4 @@ def test_character_combination_hashes_empty_lengths(en_tokenizer):
|
|||
case_sensitive=True,
|
||||
p_lengths=bytes(),
|
||||
s_lengths=bytes(),
|
||||
ps_search_chars=bytes(),
|
||||
ps_width_offsets=bytes(),
|
||||
ps_lengths=bytes(),
|
||||
ss_search_chars=bytes(),
|
||||
ss_width_offsets=bytes(),
|
||||
ss_lengths=bytes(),
|
||||
).shape == (1, 0)
|
||||
|
|
|
|||
|
|
@ -1,86 +0,0 @@
|
|||
import spacy
|
||||
import pytest
|
||||
|
||||
|
||||
@pytest.mark.parametrize("case_sensitive", [True, False])
|
||||
def test_get_search_char_byte_arrays_1_width_only(case_sensitive):
|
||||
search_chars, width_offsets = spacy.util.get_search_char_byte_arrays(
|
||||
"zzaaEP", case_sensitive
|
||||
)
|
||||
if case_sensitive:
|
||||
assert search_chars == b"EPaz"
|
||||
else:
|
||||
assert search_chars == b"aepz"
|
||||
assert width_offsets == b"\x00\x04\x04\x04\x04"
|
||||
|
||||
|
||||
@pytest.mark.parametrize("case_sensitive", [True, False])
|
||||
def test_get_search_char_byte_arrays_4_width_only(case_sensitive):
|
||||
search_chars, width_offsets = spacy.util.get_search_char_byte_arrays(
|
||||
"𐌞", case_sensitive
|
||||
)
|
||||
assert search_chars == "𐌞".encode("utf-8")
|
||||
assert width_offsets == b"\x00\x00\x00\x00\x04"
|
||||
|
||||
|
||||
@pytest.mark.parametrize("case_sensitive", [True, False])
|
||||
def test_get_search_char_byte_arrays_all_widths(case_sensitive):
|
||||
search_chars, width_offsets = spacy.util.get_search_char_byte_arrays(
|
||||
"𐌞Éabé—B𐌞", case_sensitive
|
||||
)
|
||||
if case_sensitive:
|
||||
assert search_chars == "BabÉé—𐌞".encode("utf-8")
|
||||
assert width_offsets == b"\x00\x03\x07\x0a\x0e"
|
||||
else:
|
||||
assert search_chars == "abé—𐌞".encode("utf-8")
|
||||
assert width_offsets == b"\x00\x02\x04\x07\x0b"
|
||||
|
||||
|
||||
@pytest.mark.parametrize("case_sensitive", [True, False])
|
||||
def test_get_search_char_byte_arrays_widths_1_and_3(case_sensitive):
|
||||
search_chars, width_offsets = spacy.util.get_search_char_byte_arrays(
|
||||
"B—", case_sensitive
|
||||
)
|
||||
if case_sensitive:
|
||||
assert search_chars == "B—".encode("utf-8")
|
||||
else:
|
||||
assert search_chars == "b—".encode("utf-8")
|
||||
assert width_offsets == b"\x00\x01\x01\x04\x04"
|
||||
|
||||
|
||||
@pytest.mark.parametrize("case_sensitive", [True, False])
|
||||
def test_get_search_char_byte_arrays_widths_1_and_4(case_sensitive):
|
||||
search_chars, width_offsets = spacy.util.get_search_char_byte_arrays(
|
||||
"B𐌞", case_sensitive
|
||||
)
|
||||
if case_sensitive:
|
||||
assert search_chars == "B𐌞".encode("utf-8")
|
||||
else:
|
||||
assert search_chars == "b𐌞".encode("utf-8")
|
||||
assert width_offsets == b"\x00\x01\x01\x01\x05"
|
||||
|
||||
|
||||
@pytest.mark.parametrize("case_sensitive", [True, False])
|
||||
def test_turkish_i_with_dot(case_sensitive):
|
||||
search_chars, width_offsets = spacy.util.get_search_char_byte_arrays(
|
||||
"İ", case_sensitive
|
||||
)
|
||||
if case_sensitive:
|
||||
assert search_chars == "İ".encode("utf-8")
|
||||
assert width_offsets == b"\x00\x00\x02\x02\x02"
|
||||
else:
|
||||
assert search_chars == b"i\xcc\x87"
|
||||
assert width_offsets == b"\x00\x01\x03\x03\x03"
|
||||
|
||||
|
||||
@pytest.mark.parametrize("case_sensitive", [True, False])
|
||||
def test_turkish_i_with_dot_and_normal_i(case_sensitive):
|
||||
search_chars, width_offsets = spacy.util.get_search_char_byte_arrays(
|
||||
"İI", case_sensitive
|
||||
)
|
||||
if case_sensitive:
|
||||
assert search_chars == "Iİ".encode("utf-8")
|
||||
assert width_offsets == b"\x00\x01\x03\x03\x03"
|
||||
else:
|
||||
assert search_chars == b"i\xcc\x87"
|
||||
assert width_offsets == b"\x00\x01\x03\x03\x03"
|
||||
|
|
@ -50,18 +50,6 @@ cdef void _set_suffix_lengths(
|
|||
) nogil
|
||||
|
||||
|
||||
cdef void _search_for_chars(
|
||||
const unsigned char* tok_str,
|
||||
const int tok_str_l,
|
||||
const unsigned char* search_chars,
|
||||
const unsigned char* width_offsets,
|
||||
const int max_res_l,
|
||||
const bint suffs_not_prefs,
|
||||
unsigned char* res_buf,
|
||||
unsigned char* l_buf,
|
||||
) nogil
|
||||
|
||||
|
||||
cdef int _write_hashes(
|
||||
const unsigned char* res_buf,
|
||||
const unsigned char* aff_l_buf,
|
||||
|
|
|
|||
|
|
@ -180,12 +180,6 @@ class Doc:
|
|||
case_sensitive: bool,
|
||||
p_lengths: bytes,
|
||||
s_lengths: bytes,
|
||||
ps_search_chars: bytes,
|
||||
ps_width_offsets: bytes,
|
||||
ps_lengths: bytes,
|
||||
ss_search_chars: bytes,
|
||||
ss_width_offsets: bytes,
|
||||
ss_lengths: bytes,
|
||||
) -> Ints2d: ...
|
||||
@staticmethod
|
||||
def _get_array_attrs() -> Tuple[Any]: ...
|
||||
|
|
|
|||
|
|
@ -1751,43 +1751,16 @@ cdef class Doc:
|
|||
const bint case_sensitive,
|
||||
const unsigned char* p_lengths,
|
||||
const unsigned char* s_lengths,
|
||||
const unsigned char* ps_search_chars,
|
||||
const unsigned char* ps_width_offsets,
|
||||
const unsigned char* ps_lengths,
|
||||
const unsigned char* ss_search_chars,
|
||||
const unsigned char* ss_width_offsets,
|
||||
const unsigned char* ss_lengths,
|
||||
):
|
||||
"""
|
||||
Returns a 2D NumPy array where the rows represent tokens and the columns represent hashes of various character combinations
|
||||
derived from the raw text of each token.
|
||||
|
||||
Generally:
|
||||
|
||||
p_ variables relate to prefixes (affixes starting at the beginning of the word)
|
||||
s_ variables relate to suffixes (affixes starting at the end of the word)
|
||||
ps_ variables relate to searches starting at the beginning of the word
|
||||
ss_ variables relate to searches starting at the end of the word
|
||||
|
||||
cs: if *False*, hashes are generated based on the lower-case version of each token.
|
||||
case_sensitive: if *False*, hashes are generated based on the lower-case version of each token.
|
||||
p_lengths: an array of single-byte values specifying the lengths of prefixes to be hashed in ascending order.
|
||||
For example, if *p_lengths==[2, 3]*, the prefixes hashed for "spaCy" would be "sp" and "spa".
|
||||
s_lengths: an array of single-byte values specifying the lengths of suffixes to be hashed in ascending order.
|
||||
For example, if *s_lengths==[2, 3]* and *cs == True*, the suffixes hashed for "spaCy" would be "yC" and "yCa".
|
||||
ps_search_chars: a byte array containing, in numerical order, UTF-8 characters to search for within each token,
|
||||
starting at the beginning.
|
||||
ps_width_offsets: an array of single-byte values [1-char-start, 2-char-start, 3-char-start, 4-char-start, 4-char-end]
|
||||
specifying the offsets within *ps_search_chars* that contain UTF-8 characters with the specified widths.
|
||||
ps_lengths: an array of single-byte values specifying the lengths of search results (from the beginning) to be hashed
|
||||
in ascending order. For example, if *ps_lengths==[1, 2]*, *ps_search=="aC" and *cs==False*, the searched strings
|
||||
hashed for "spaCy" would be "a" and "ac".
|
||||
ss_search_chars: a byte array containing, in numerical order, UTF-8 characters to search for within each token,
|
||||
starting at the end.
|
||||
ss_width_offsets: an array of single-byte values [1-char-start, 2-char-start, 3-char-start, 4-char-start, 4-char-end]
|
||||
specifying the offsets within *ss_search_chars* that contain UTF-8 characters with the specified widths.
|
||||
ss_lengths: an array of single-byte values specifying the lengths of search results (from the end) to be hashed
|
||||
in ascending order. For example, if *ss_lengths==[1, 2]*, *ss_search=="aC" and *cs==False*, the searched strings
|
||||
hashed for "spaCy" would be "c" and "ca".
|
||||
|
||||
Many of the buffers passed into and used by this method contain single-byte numerical values. This takes advantage of
|
||||
the fact that we are hashing short affixes and searching for small groups of characters. The calling code is responsible
|
||||
|
|
@ -1801,27 +1774,16 @@ cdef class Doc:
|
|||
# Work out lengths
|
||||
cdef int p_lengths_l = strlen(<char*> p_lengths)
|
||||
cdef int s_lengths_l = strlen(<char*> s_lengths)
|
||||
cdef int ps_lengths_l = strlen(<char*> ps_lengths)
|
||||
cdef int ss_lengths_l = strlen(<char*> ss_lengths)
|
||||
cdef int hashes_per_tok = p_lengths_l + s_lengths_l + ps_lengths_l + ss_lengths_l
|
||||
cdef int p_max_l = p_lengths[p_lengths_l - 1] if p_lengths_l > 0 else 0
|
||||
cdef int s_max_l = s_lengths[s_lengths_l - 1] if s_lengths_l > 0 else 0
|
||||
cdef int ps_max_l = ps_lengths[ps_lengths_l - 1] if ps_lengths_l > 0 else 0
|
||||
cdef int ss_max_l = ss_lengths[ss_lengths_l - 1] if ss_lengths_l > 0 else 0
|
||||
|
||||
# Define / allocate buffers
|
||||
cdef Pool mem = Pool()
|
||||
cdef unsigned char* pref_l_buf = <unsigned char*> mem.alloc(p_max_l, sizeof(char))
|
||||
cdef unsigned char* suff_l_buf = <unsigned char*> mem.alloc(s_max_l, sizeof(char))
|
||||
cdef unsigned char* ps_res_buf = <unsigned char*> mem.alloc(ps_max_l,
|
||||
MAX_UTF8_CHAR_BYTE_WIDTH * sizeof(char))
|
||||
cdef unsigned char* ps_l_buf = <unsigned char*> mem.alloc(ps_max_l, sizeof(char))
|
||||
cdef unsigned char* ss_res_buf = <unsigned char*> mem.alloc(ss_max_l,
|
||||
MAX_UTF8_CHAR_BYTE_WIDTH * sizeof(char))
|
||||
cdef unsigned char* ss_l_buf = <unsigned char*> mem.alloc(ss_max_l, sizeof(char))
|
||||
cdef int doc_l = self.length
|
||||
cdef np.ndarray[np.uint64_t, ndim=2] hashes = numpy.empty(
|
||||
(doc_l, hashes_per_tok), dtype="uint64")
|
||||
(doc_l, p_lengths_l + s_lengths_l), dtype="uint64")
|
||||
cdef np.uint64_t* hashes_ptr = <np.uint64_t*> hashes.data
|
||||
|
||||
# Define working variables
|
||||
|
|
@ -1851,17 +1813,7 @@ cdef class Doc:
|
|||
if s_max_l > 0:
|
||||
_set_suffix_lengths(tok_str, tok_str_l, s_max_l, suff_l_buf)
|
||||
hashes_ptr += _write_hashes(tok_str, s_lengths, suff_l_buf, tok_str_l - 1, hashes_ptr)
|
||||
|
||||
if ps_max_l > 0:
|
||||
_search_for_chars(tok_str, tok_str_l, ps_search_chars, ps_width_offsets,
|
||||
ps_max_l, False, ps_res_buf, ps_l_buf)
|
||||
hashes_ptr += _write_hashes(ps_res_buf, ps_lengths, ps_l_buf, 0, hashes_ptr)
|
||||
|
||||
if ss_max_l > 0:
|
||||
_search_for_chars(tok_str, tok_str_l, ss_search_chars, ss_width_offsets,
|
||||
ss_max_l, True, ss_res_buf, ss_l_buf)
|
||||
hashes_ptr += _write_hashes(ss_res_buf, ss_lengths, ss_l_buf, 0, hashes_ptr)
|
||||
|
||||
|
||||
return hashes
|
||||
|
||||
|
||||
|
|
@ -2111,73 +2063,6 @@ cdef void _set_suffix_lengths(
|
|||
memset(suff_l_buf + suff_l_buf_idx, suff_l_buf[suff_l_buf_idx - 1], s_max_l - suff_l_buf_idx)
|
||||
|
||||
|
||||
cdef void _search_for_chars(
|
||||
const unsigned char* tok_str,
|
||||
const int tok_str_l,
|
||||
const unsigned char* search_chars,
|
||||
const unsigned char* width_offsets,
|
||||
const int max_res_l,
|
||||
const bint suffs_not_prefs,
|
||||
unsigned char* res_buf,
|
||||
unsigned char* l_buf,
|
||||
) nogil:
|
||||
""" Search *tok_str* within a string for characters within *search_chars*, starting at the
|
||||
beginning or end depending on the value of *suffs_not_prefs*. Wherever a character matches,
|
||||
it is added to *res_buf* and the byte length up to that point is added to *l_buf*. When nothing
|
||||
more is found, the remainder of *l_buf* is populated wth the byte length from the last result,
|
||||
which may be *0* if the search was not successful.
|
||||
|
||||
tok_str: a UTF-8 representation of a string.
|
||||
tok_str_l: the length of *tok_str*.
|
||||
search_chars: a byte array containing, in numerical order, UTF-8 characters to search for within *tok_str*.
|
||||
width_offsets: an array of single-byte values [1-char-start, 2-char-start, 3-char-start, 4-char-start, 4-char-end]
|
||||
specifying the offsets within *search_chars* that contain UTF-8 characters with the specified widths.
|
||||
max_res_l: the maximum number of found characters to place in *res_buf*.
|
||||
suffs_not_prefs: if *True*, searching starts from the end of the word;
|
||||
if *False*, from the beginning.
|
||||
res_buf: the buffer in which to place the search results.
|
||||
l_buf: a buffer of length *max_res_l* in which to store the end byte offsets of the found characters.
|
||||
The calling code ensures that lengths greater than 255 cannot occur.
|
||||
"""
|
||||
cdef int res_buf_idx = 0, l_buf_idx = 0, ch_wdth, tok_start_idx, search_char_idx, end_search_idx
|
||||
cdef int last_tok_str_idx = tok_str_l if suffs_not_prefs else 0
|
||||
cdef int this_tok_str_idx = tok_str_l - 1 if suffs_not_prefs else 1
|
||||
|
||||
while this_tok_str_idx >= 0 and this_tok_str_idx <= tok_str_l:
|
||||
if (
|
||||
(this_tok_str_idx == tok_str_l) or
|
||||
((tok_str[this_tok_str_idx] & 0xc0) != 0x80) # not continuation character, always applies to [0].
|
||||
):
|
||||
if this_tok_str_idx > last_tok_str_idx:
|
||||
ch_wdth = this_tok_str_idx - last_tok_str_idx
|
||||
else:
|
||||
ch_wdth = last_tok_str_idx - this_tok_str_idx
|
||||
|
||||
tok_start_idx = this_tok_str_idx if suffs_not_prefs else last_tok_str_idx
|
||||
search_char_idx = width_offsets[ch_wdth - 1]
|
||||
end_search_idx = width_offsets[ch_wdth]
|
||||
while search_char_idx < end_search_idx:
|
||||
cmp_result = memcmp(&tok_str[tok_start_idx], &search_chars[search_char_idx], ch_wdth)
|
||||
if cmp_result == 0:
|
||||
memcpy(res_buf + res_buf_idx, &search_chars[search_char_idx], ch_wdth)
|
||||
res_buf_idx += ch_wdth
|
||||
l_buf[l_buf_idx] = res_buf_idx
|
||||
l_buf_idx += 1
|
||||
if l_buf_idx == max_res_l:
|
||||
return
|
||||
if cmp_result <= 0:
|
||||
break
|
||||
search_char_idx += ch_wdth
|
||||
last_tok_str_idx = this_tok_str_idx
|
||||
if suffs_not_prefs:
|
||||
this_tok_str_idx -= 1
|
||||
else:
|
||||
this_tok_str_idx += 1
|
||||
|
||||
# fill in unused characters in the length buffer
|
||||
memset(l_buf + l_buf_idx, res_buf_idx, max_res_l - l_buf_idx)
|
||||
|
||||
|
||||
cdef uint64_t FNV1A_OFFSET_BASIS = 0xcbf29ce484222325
|
||||
cdef uint64_t FNV1A_PRIME = 0x00000100000001B3
|
||||
|
||||
|
|
|
|||
|
|
@ -1736,44 +1736,3 @@ def all_equal(iterable):
|
|||
(or if the input is an empty sequence), False otherwise."""
|
||||
g = itertools.groupby(iterable)
|
||||
return next(g, True) and not next(g, False)
|
||||
|
||||
|
||||
def get_search_char_byte_arrays(
|
||||
search_char_string: str, case_sensitive: bool
|
||||
) -> Tuple[bytes, bytes]:
|
||||
"""
|
||||
This function supports *RichMultiHashEmbed*. It orders the characters in
|
||||
*search_char_string*, removing any duplicates, encodes them as UTF-8, and
|
||||
returns the result bufer together with a byte array containing the offsets
|
||||
where the characters of various byte lengths start within the result buffer,
|
||||
i.e.
|
||||
|
||||
<1-byte-start>, <2-byte-start>, <3-byte-start>, <4-byte-start>, <4-byte-end>.
|
||||
|
||||
If the result buffer does not contain any characters of length *n*,
|
||||
<n_byte_start> == <n+1_byte_start>.
|
||||
"""
|
||||
|
||||
if not case_sensitive:
|
||||
search_char_string = search_char_string.lower()
|
||||
ordered_search_char_string = "".join(sorted(set(search_char_string)))
|
||||
search_chars = ordered_search_char_string.encode("UTF-8")
|
||||
width_offsets = [-1] * 5
|
||||
working_start = 0
|
||||
working_width = 0
|
||||
for idx in range(1, len(search_chars) + 1):
|
||||
if (
|
||||
idx == len(search_chars)
|
||||
or search_chars[idx] & 0xC0 != 0x80 # not continuation byte
|
||||
):
|
||||
this_width = idx - working_start
|
||||
if this_width > 4 or this_width < working_width:
|
||||
raise RuntimeError(Errors.E1051)
|
||||
if this_width > working_width:
|
||||
for i in range(working_width, 5):
|
||||
width_offsets[i] = working_start
|
||||
working_width = this_width
|
||||
working_start = idx
|
||||
for i in range(this_width, 5):
|
||||
width_offsets[i] = idx
|
||||
return search_chars, bytes((width_offsets))
|
||||
|
|
|
|||
|
|
@ -186,9 +186,6 @@ updated).
|
|||
> pref_rows = [10000,10000,10000]
|
||||
> suff_lengths = [2, 3, 4, 5]
|
||||
> suff_rows = [10000,10000,10000,10000]
|
||||
> suff_search_chars = "aeiouäöüß"
|
||||
> suff_search_lengths = [2, 3]
|
||||
> suff_search_rows = [10000,10000]
|
||||
> ```
|
||||
|
||||
Construct an embedding layer with the features of
|
||||
|
|
@ -198,35 +195,12 @@ features extracted from various positions in each token string. The fixed-length
|
|||
[MultiHashEmbed](#spacymultihashembedv2-multihashembed) are sometimes not rich
|
||||
enough when working with languages with complex morphology, and this layer
|
||||
allows the specification of multiple prefixes and suffixes of any lengths.
|
||||
|
||||
Additionally, it is possible to use as features the results of character
|
||||
searches of specified lengths. A list of search characters is specified; the
|
||||
characters in each word are examined in order starting at the beginning or at
|
||||
the end; and each character that matches one of the search characters is added,
|
||||
in order, to the string to be used as a feature. The search continues until
|
||||
either the search result string is full or the whole word has been examined.
|
||||
This is useful because some languages exhibit morphological alternations where
|
||||
one letter or letters regularly alternate with another letter or letters
|
||||
depending on the presence of some other letter before or after it, e.g. German
|
||||
plural nouns where the final two vowels are `ä-e` regularly correspond to
|
||||
singular lemmas where the `e` is no longer present and the `ä` has become `a`,
|
||||
e.g. `die Bäche` (plural) vs. `der Bach` (singular).
|
||||
|
||||
For most languages used with spaCy, searching is likely to be useful starting at
|
||||
the end (`suff_*`), but the ability to search from the beginning (`pref_*`) is
|
||||
also offered for completeness. Search characters should consist of all
|
||||
characters that regularly alternate with other characters in the language in
|
||||
question or whose presence before or after characters that would otherwise
|
||||
alternate prevents the alternation from occurring, e.g. an `ä` in a German
|
||||
plural noun does not become `a` if it is the third or fourth vowel from the end
|
||||
of the word.
|
||||
Arrays specifying lengths must be in ascending order.
|
||||
|
||||
There are a few rare situations where a graphical character is expressed as more
|
||||
than one UTF-8 character, e.g. _i_ when representing the lower-case form of the
|
||||
Turkish letter _İ_. Such situations are supported, but the lengths of prefixes,
|
||||
suffixes and character search results may need to be increased accordingly.
|
||||
|
||||
All arrays specifying lengths must be in ascending order.
|
||||
Turkish letter _İ_. Such situations are supported, but the lengths of prefixes
|
||||
and suffixes may need to be increased accordingly.
|
||||
|
||||
| Name | Description |
|
||||
| ------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
|
||||
|
|
@ -239,12 +213,6 @@ All arrays specifying lengths must be in ascending order.
|
|||
| `pref_rows` | The number of rows for each of `pref_lengths`. ~~Optional[List[int]~~ |
|
||||
| `suff_lengths` | The lengths of suffixes to use as features for each word, e.g. for the word `spaCy`: `[1, 3]` would lead to `y` and `yCa` being used as features. ~~Optional[List[int]~~ |
|
||||
| `suff_rows` | The number of rows for each of `suff_lengths`. ~~Optional[List[int]~~ |
|
||||
| `pref_search_chars` | A string containing characters to search for starting from the beginning of each word. ~~Optional[str]~~ |
|
||||
| `pref_search_lengths` | The lengths of search result strings to use as features, where the searches start from the beginning of each word. ~~Optional[List[int]]~~ |
|
||||
| `pref_search_rows` | The number of rows for each of `pref_search_lengths`. ~~Optional[List[int]~~ |
|
||||
| `suff_search_chars` | A string containing characters to search for starting from the end of each word. ~~Optional[str]~~ |
|
||||
| `suff_search_lengths` | The lengths of search result strings to use as features, where the searches start from the end of each word. ~~Optional[List[int]]~~ |
|
||||
| `suff_search_rows` | The number of rows for each of `suff_search_lengths`. ~~Optional[List[int]~~ |
|
||||
| **CREATES** | The model using the architecture. ~~Model[List[Doc], List[Floats2d]]~~ |
|
||||
|
||||
### spacy.CharacterEmbed.v2 {#CharacterEmbed}
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user