Changes

0.6 (2017-12-29)

A complete example (contact extractor) is added to the repo;
fixed a lot of issues in the annotated data;
fixed loading of <title> annotations;
all annotated data is converted from GATE to WebAnnotator format;
text tokenizers allow to optionally return original token positions;
converting text from tokenized to raw is now lossless;
webstruct.webannotator.to_webannotator is rewritten;
<script>, <style> elements, HTML comments and processing instructions are ignored when they are inside entities;
tutorial is rewritten for CRFSuite;
Wapiti support is fixed in Python 3;
top-N parsing support when using Wapiti; an option to merge top N chains, to increase recall;
benchmarking script;
don't declare Python 3.3 support (it is EOL).

webstruct.model.NER now uses requests library to make HTTP requests;
changed default headers used by webstruct.model.NER;
new webstruct.infer_domain module useful for proper cross-validation;
webstruct.webannotator.to_webannotator got an option to add <base> tag with the original URL to the page;
fixed a warning in webstruct.gazetteers.geonames.read_geonames;
add a few more country names to countries.txt list.

sklearn-crfsuite is used as a CRFsuite wrapper, CRFsuiteCRF class is removed;
comments are preserved in HTML trees because recent Firefox puts <base> tags to a comment when saving pages, and this affects WebAnnotator;
fixed 'dont_penalize' argument of webstruct.NER.extract_groups_from_url;
new webstruct.model.extract_entity_groups utility function;
HtmlTokenizer and HtmlToken are moved to their own module (webstruct.html_tokenizer);
test improvements;

There are many changes from previous version: API is changed, Python 3 is supported, better gazetteers support, CRFsuite support, etc.