Apache Tika 1.12 发布，内容抽取工具

佴琪华

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　　Apache Tika 1.12 发布，Tika是一个内容抽取的工具集合(a toolkit for text extracting)。它集成了POI, Pdfbox 并且为文本抽取工作提供了一个统一的界面。其次，Tika也提供了便利的扩展API，用来丰富其对第三方文件格式的支持。
　　该版本包含不少改进和 bug 修复。具体内容包括：
　　* Slide notes are now linked to the slide XHTML in the PPT output
    (TIKA-1840).
  * JSON tests in Tika server were updated to remove impossible casts
    (Github-73).
  * Fix bug in GeoTopicParser where NER is reused instead of instantiated
    with each request (TIKA-1834).
  * Upgrade rome to 1.5.1 && Downgrade Rome dependency to 0.9 to avoid
    nasty NPE (TIKA-1820, TIKA-1516)
  * The NamedEntityParser was enhanced to generate text content
    in addition to metadata (TIKA-1815, TIKA-1816).
  * A significant speed-up is made to the GeoTopicParser by
    using the new REST server capabilities from Lucene Geo
    Gazetteer (TIKA-1803).
  * A parser to compute motion properties in Videos, e.g.,
    Histogram of Oriented Gradients and Histogram of Optical Flows
    using the Pooled Time Series algorithm, was added (TIKA-1798).
  * Provide NamedEntityParser which exposes Named Entity Recognition
    from OpenNLP and Stanford NER providers (TIKA-1787, GitHub-61,
    GitHub-62).
  * Allow XHTMLContentHandler to pass attributes of html element
    via Markus Jelsma (TIKA-1782).
  * Fix regression with spacing in PPT via Andreas Beeker (TIKA-1777).
  * Tika Facade parse methods for Path and File added which take a
    Metadata object, to mirror the existing InputStream one (GitHub-60)
  * GeoParser fix for loading the NER model from a jar file (TIKA-1791)