- var urls = {}
- urls.choi_paper = "http://aclweb.org/anthology/P/P15/P15-1038.pdf"
- urls.emnlp_paper = "honnibal_johnson_emnlp2015.pdf"


+comparison("NLTK")
  p spaCy is:
  ul
    li.pro 100x faster;
    li.pro 50% more accurate;
    li.pro Serializes TODO% smaller;

  p spaCy features:
    ul 
      li.pro Integrated word vectors;
      li.pro Efficient binary serialization;

  p NLTK features:
    ul
      li.con Multiple languages; 
      li.neutral Educational resources


//+comparison("Pattern")
+comparison("CoreNLP")
  p spaCy is:

  ul
    li.pro TODO% faster;
    li.pro TODO% more accurate;
    li.pro Not Java;
    li.pro Well documented;
    li.pro Cheaper to license commercially;
    li.neutral
      | Opinionated/Minimalist. spaCy avoids providing redundant or overlapping
      | options.  

  p CoreNLP features:

  ul
    li.con Multiple Languages;
    li.con Sentiment analysis 
    li.con Coreference resolution


+comparison("ClearNLP")
  p spaCy is:

  ul
    li.pro Not Java;
    li.pro TODO% faster;
    li.pro Well documented;
    li.neutral Slightly more accurate;

  p ClearNLP features:

  ul
    li.con Semantic Role Labelling
    li.con Multiple Languages
    li.con Model for biology/life-science;

//+comparison("Accuracy Summary")

//+comparison("Speed Summary")
//  table
//    thead
//      tr
//        th.
//        th(colspan=3) Absolute (ms per doc)
//        th(colspan=3) Relative (to spaCy)
//
//    tbody
//      tr
//        td: strong System
//        td: strong Split
//        td: strong Tag
//        td: strong Parse
//        td: strong Split
//        td: strong Tag
//        td: strong Parse
//
//      +row("spaCy", "0.2ms", "1ms", "19ms", "1x", "1x", "1x")
//      +row("spaCy", "0.2ms", "1ms", "19ms", "1x", "1x", "1x")
//      +row("CoreNLP", "2ms", "10ms", "49ms", "10x", "10x", "2.6x")
//      +row("ZPar", "1ms", "8ms", "850ms", "5x", "8x", "44.7x")
//      +row("NLTK", "4ms", "443ms", "n/a", "20x", "443x", "n/a")
//
//  p
//    | <strong>Set up</strong>: 100,000 plain-text documents were streamed
//    | from an SQLite3 database, and processed with an NLP library, to one
//    | of three levels of detail &ndash; tokenization, tagging, or parsing.
//    | The tasks are additive: to parse the text you have to tokenize and
//    | tag it.  The  pre-processing was not subtracted from the times &ndash;
//    | I report the time required for the pipeline to complete.  I report
//    | mean times per document, in milliseconds.
//
//  p
//    | <strong>Hardware</strong>: Intel i7-3770 (2012)





+comparison("Peer-reviewed Evaluations")
  p.
    spaCy is committed to rigorous evaluation under standard methodology.  Two
    papers in 2015 confirm that:
  ol
    li spaCy is the fastest syntactic parser in the world;
    li Its accuracy is within 1% of the best available;
    li The few systems that are more accurate are 20&times; slower or more.

  p
    | spaCy v0.84 was evaluated by researchers at Yahoo! Labs and Emory University,
    | as part of a survey paper benchmarking the current state-of-the-art dependency
    | parsers 
    a(href=urls.choi_paper) (Choi et al., 2015)
    | .

  table
    thead
      +columns("System", "Language", "Accuracy", "Speed")

    tbody
      +row("spaCy v0.84", "Cython", "90.6", "13,963")
      +row("spaCy v0.89", "Cython", "91.8", "13,000 (est.)")
      +row("ClearNLP", "Java", "91.7", "10,271")
      +row("CoreNLP", "Java", "89.6", "8,602")
      +row("MATE", "Java", "92.5", "550")
      +row("Turbo", "C++", "92.4", "349")
      +row("Yara", "Java", "92.3", "340")

  p
    | Discussion with the authors led to accuracy improvements in spaCy, which
    | have been accepted for publication in EMNLP, in joint work with Macquarie
    | University
    a(href=urls.emnlp_paper) (Honnibal and Johnson, 2015)
    | .