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Merge pull request #1435 from ramananbalakrishnan/update_to_array

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Support single value for attribute list in doc.to_array
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Ines Montani 2017-10-20 13:21:48 +02:00 committed by GitHub
commit 2a0ab6fafa
4 changed files with 167 additions and 16 deletions
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106
.github/contributors/ramananbalakrishnan.md vendored Normal file
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@ -0,0 +1,106 @@
# spaCy contributor agreement
This spaCy Contributor Agreement (**"SCA"**) is based on the
[Oracle Contributor Agreement](http://www.oracle.com/technetwork/oca-405177.pdf).
The SCA applies to any contribution that you make to any product or project
managed by us (the **"project"**), and sets out the intellectual property rights
you grant to us in the contributed materials. The term **"us"** shall mean
[ExplosionAI UG (haftungsbeschränkt)](https://explosion.ai/legal). The term
**"you"** shall mean the person or entity identified below.
If you agree to be bound by these terms, fill in the information requested
below and include the filled-in version with your first pull request, under the
folder [`.github/contributors/`](/.github/contributors/). The name of the file
should be your GitHub username, with the extension `.md`. For example, the user
example_user would create the file `.github/contributors/example_user.md`.
Read this agreement carefully before signing. These terms and conditions
constitute a binding legal agreement.
## Contributor Agreement
1. The term "contribution" or "contributed materials" means any source code,
object code, patch, tool, sample, graphic, specification, manual,
documentation, or any other material posted or submitted by you to the project.
2. With respect to any worldwide copyrights, or copyright applications and
registrations, in your contribution:
* you hereby assign to us joint ownership, and to the extent that such
assignment is or becomes invalid, ineffective or unenforceable, you hereby
grant to us a perpetual, irrevocable, non-exclusive, worldwide, no-charge,
royalty-free, unrestricted license to exercise all rights under those
copyrights. This includes, at our option, the right to sublicense these same
rights to third parties through multiple levels of sublicensees or other
licensing arrangements;
* you agree that each of us can do all things in relation to your
contribution as if each of us were the sole owners, and if one of us makes
a derivative work of your contribution, the one who makes the derivative
work (or has it made will be the sole owner of that derivative work;
* you agree that you will not assert any moral rights in your contribution
against us, our licensees or transferees;
* you agree that we may register a copyright in your contribution and
exercise all ownership rights associated with it; and
* you agree that neither of us has any duty to consult with, obtain the
consent of, pay or render an accounting to the other for any use or
distribution of your contribution.
3. With respect to any patents you own, or that you can license without payment
to any third party, you hereby grant to us a perpetual, irrevocable,
non-exclusive, worldwide, no-charge, royalty-free license to:
* make, have made, use, sell, offer to sell, import, and otherwise transfer
your contribution in whole or in part, alone or in combination with or
included in any product, work or materials arising out of the project to
which your contribution was submitted, and
* at our option, to sublicense these same rights to third parties through
multiple levels of sublicensees or other licensing arrangements.
4. Except as set out above, you keep all right, title, and interest in your
contribution. The rights that you grant to us under these terms are effective
on the date you first submitted a contribution to us, even if your submission
took place before the date you sign these terms.
5. You covenant, represent, warrant and agree that:
* Each contribution that you submit is and shall be an original work of
authorship and you can legally grant the rights set out in this SCA;
* to the best of your knowledge, each contribution will not violate any
third party's copyrights, trademarks, patents, or other intellectual
property rights; and
* each contribution shall be in compliance with U.S. export control laws and
other applicable export and import laws. You agree to notify us if you
become aware of any circumstance which would make any of the foregoing
representations inaccurate in any respect. We may publicly disclose your
participation in the project, including the fact that you have signed the SCA.
6. This SCA is governed by the laws of the State of California and applicable
U.S. Federal law. Any choice of law rules will not apply.
7. Please place an “x” on one of the applicable statement below. Please do NOT
mark both statements:
* [x] I am signing on behalf of myself as an individual and no other person
or entity, including my employer, has or will have rights with respect to my
contributions.
* [ ] I am signing on behalf of my employer or a legal entity and I have the
actual authority to contractually bind that entity.
## Contributor Details
| Field | Entry |
|------------------------------- | -------------------- |
| Name | Ramanan Balakrishnan |
| Company name (if applicable) | |
| Title or role (if applicable) | |
| Date | 2017-10-18 |
| GitHub username | ramananbalakrishnan |
| Website (optional) | |

20
spacy/tests/doc/test_array.py
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@ -17,6 +17,26 @@ def test_doc_array_attr_of_token(en_tokenizer, en_vocab):
assert feats_array[0][0] != feats_array[0][1]
def test_doc_stringy_array_attr_of_token(en_tokenizer, en_vocab):
text = "An example sentence"
tokens = en_tokenizer(text)
example = tokens.vocab["example"]
assert example.orth != example.shape
feats_array = tokens.to_array((ORTH, SHAPE))
feats_array_stringy = tokens.to_array(("ORTH", "SHAPE"))
assert feats_array_stringy[0][0] == feats_array[0][0]
assert feats_array_stringy[0][1] == feats_array[0][1]
def test_doc_scalar_attr_of_token(en_tokenizer, en_vocab):
text = "An example sentence"
tokens = en_tokenizer(text)
example = tokens.vocab["example"]
assert example.orth != example.shape
feats_array = tokens.to_array(ORTH)
assert feats_array.shape == (3,)
def test_doc_array_tag(en_tokenizer):
text = "A nice sentence."
pos = ['DET', 'ADJ', 'NOUN', 'PUNCT']

31
spacy/tokens/doc.pyx
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@ -16,6 +16,7 @@ from .token cimport Token
from ..lexeme cimport Lexeme
from ..lexeme cimport EMPTY_LEXEME
from ..typedefs cimport attr_t, flags_t
from ..attrs import IDS
from ..attrs cimport attr_id_t
from ..attrs cimport ID, ORTH, NORM, LOWER, SHAPE, PREFIX, SUFFIX, LENGTH, CLUSTER
from ..attrs cimport POS, LEMMA, TAG, DEP, HEAD, SPACY, ENT_IOB, ENT_TYPE
@ -474,10 +475,13 @@ cdef class Doc:
@cython.boundscheck(False)
cpdef np.ndarray to_array(self, object py_attr_ids):
"""
Given a list of M attribute IDs, export the tokens to a numpy
`ndarray` of shape (N, M), where `N` is the length
of the document. The values will be 32-bit integers.
"""Export given token attributes to a numpy `ndarray`.
If `attr_ids` is a sequence of M attributes, the output array will
be of shape `(N, M)`, where N is the length of the `Doc`
(in tokens). If `attr_ids` is a single attribute, the output shape will
be (N,). You can specify attributes by integer ID (e.g. spacy.attrs.LEMMA)
or string name (e.g. 'LEMMA' or 'lemma').
Example:
from spacy import attrs
@ -486,24 +490,33 @@ cdef class Doc:
np_array = doc.to_array([attrs.LOWER, attrs.POS, attrs.ENT_TYPE, attrs.IS_ALPHA])
Arguments:
attr_ids (list[int]): A list of attribute ID ints.
attr_ids (list[]): A list of attributes (int IDs or string names).
Returns:
feat_array (numpy.ndarray[long, ndim=2]):
A feature matrix, with one row per word, and one column per attribute
indicated in the input attr_ids.
indicated in the input `attr_ids`.
"""
cdef int i, j
cdef attr_id_t feature
cdef np.ndarray[attr_t, ndim=1] attr_ids
cdef np.ndarray[attr_t, ndim=2] output
# Make an array from the attributes --- otherwise our inner loop is Python
# Handle scalar/list inputs of strings/ints for py_attr_ids
if not hasattr(py_attr_ids, '__iter__'):
py_attr_ids = [py_attr_ids]
# Allow strings, e.g. 'lemma' or 'LEMMA'
py_attr_ids = [(IDS[id_.upper()] if hasattr(id_, 'upper') else id_)
for id_ in py_attr_ids]
# Make an array from the attributes --- otherwise inner loop would be Python
# dict iteration.
cdef np.ndarray[attr_t, ndim=1] attr_ids = numpy.asarray(py_attr_ids, dtype=numpy.int32)
attr_ids = numpy.asarray(py_attr_ids, dtype=numpy.int32)
output = numpy.ndarray(shape=(self.length, len(attr_ids)), dtype=numpy.int32)
for i in range(self.length):
for j, feature in enumerate(attr_ids):
output[i, j] = get_token_attr(&self.c[i], feature)
return output
# Handle 1d case
return output if len(attr_ids) >= 2 else output.reshape((self.length,))
def count_by(self, attr_id_t attr_id, exclude=None, PreshCounter counts=None):
"""

26
website/docs/api/doc.jade
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@ -176,9 +176,14 @@ p
+tag method
p
| Export the document annotations to a numpy array of shape #[code N*M]
| where #[code N] is the length of the document and #[code M] is the number
| of attribute IDs to export. The values will be 32-bit integers.
| Export given token attributes to a numpy #[code ndarray].
| If #[code attr_ids] is a sequence of #[code M] attributes,
| the output array will be of shape #[code (N, M)], where #[code N]
| is the length of the #[code Doc] (in tokens). If #[code attr_ids] is
| a single attribute, the output shape will be #[code (N,)]. You can
| specify attributes by integer ID (e.g. #[code spacy.attrs.LEMMA])
| or string name (e.g. 'LEMMA' or 'lemma'). The values will be 32-bit
| integers.
+aside-code("Example").
from spacy import attrs
@ -186,19 +191,26 @@ p
# All strings mapped to integers, for easy export to numpy
np_array = doc.to_array([attrs.LOWER, attrs.POS,
attrs.ENT_TYPE, attrs.IS_ALPHA])
np_array = doc.to_array("POS")
+table(["Name", "Type", "Description"])
+row
+cell #[code attr_ids]
+cell ints
+cell A list of attribute ID ints.
+cell int or string
+cell
| A list of attributes (int IDs or string names) or
| a single attribute (int ID or string name)
+footrow
+cell return
+cell #[code numpy.ndarray[ndim=2, dtype='int32']]
+cell
| #[code numpy.ndarray[ndim=2, dtype='int32']] or
| #[code numpy.ndarray[ndim=1, dtype='int32']]
+cell
| The exported attributes as a 2D numpy array, with one row per
| token and one column per attribute.
| token and one column per attribute (when #[code attr_ids] is a
| list), or as a 1D numpy array, with one item per attribute (when
| #[code attr_ids] is a single value).
+h(2, "count_by") Doc.count_by
+tag method