BOLT English Treebank - Discussion Forum

<h3>Introduction</h3><br>
<p>BOLT English Treebank - Discussion Forum was developed by the Linguistic Data Consortium (LDC) and consists of English web discussion forum data with part-of-speech and syntactic structure annotations.</p><br>
<p>The DARPA <a href="https://www.ldc.upenn.edu/collaborations/current-projects/bolt">BOLT</a> (Broad Operational Language Translation) program developed machine translation and information retrieval for less formal genres, focusing particularly on user-generated content. LDC supported the BOLT program by collecting informal data sources -- discussion forums, text messaging and chat -- in Chinese, Egyptian Arabic and English. The collected data was translated and annotated for various tasks including word alignment, treebanking, propbanking and co-reference.</p><br>
<p>The unannotated English source data is released as BOLT English Discussion Forums (<a href="../../../LDC2017T11">LDC2017T11</a>).</p><br>
<p>Part-of-speech and treebank annotation conformed to Penn Treebank II style, incorporating changes to those guidelines that were developed under the GALE (Global Autonomous Language Exploitation) program. Those changes primarily concerned the tokenization of hyphenated words, part-of-speech and tree changes necessitated by the tokenization changes, and updates to the syntactic annotation to comply with updated annotation guidelines. Supplementary guidelines for English treebanks and web text are included with this release.</p><br>
<h3>Data</h3><br>
<p>The source data is English discussion forum web text collected by LDC in 2011 and 2012. A subset of that collection -- 702 files representing 268,907 tokens -- was selected for the treebank and annotated for word-level tokenization, part-of-speech and syntactic structure.</p><br>
<p>Data is presented in a a variety of UTF-8 encoded text formats, specifically, plain text, XML, and Penn Treebank. See the included documentation for more information about specific formats.</p><br>
<h3>Acknowledgement</h3><br>
<p>This material is based upon work supported by the Defense Advanced Research Projects Agency (DARPA) under Contract No. HR0011-11-C-0145. The content does not necessarily reflect the position or the policy of the Government, and no official endorsement should be inferred.</p><br>
<h3>Samples</h3><br>
<p>Please view the following samples:</p><br>
<ul><br>
<li><a href="desc/addenda/LDC2019T15.eng.su.xml.src.flat.txt">Source</a></li><br>
<li><a href="desc/addenda/LDC2019T15.xml.tree.txt">Penn Treebank</a></li><br>
<li><a href="desc/addenda/LDC2019T15.xml">XML</a></li><br>
</ul><br>
<h3>Updates</h3><br>
<p>None at this time.</p></br>
Portions © 2011-2019 Trustees of the University of Pennsylvania

<h3>简介</h3><br><p>BOLT英语树库——论坛语料库由语言数据联盟（Linguistic Data Consortium，LDC）开发，包含带有词性标注与句法结构标注的英语网络论坛文本数据。</p><br><p>美国国防高级研究计划局（Defense Advanced Research Projects Agency，DARPA）发起的BOLT（Broad Operational Language Translation，全域作战语言翻译）项目，旨在为非正式文本体裁开发机器翻译与信息检索技术，尤其聚焦用户生成内容。LDC为支持该项目，采集了中文、埃及阿拉伯语及英语的非正式数据源——论坛文本、短信与聊天记录。所采集的数据经翻译与标注，可用于词对齐、树库标注、论元结构标注（propbanking）与共指消解等多项任务。</p><br><p>未标注的英语源数据以《BOLT英语论坛语料》（<a href="../../../LDC2017T11">LDC2017T11</a>）的形式发布。</p><br><p>本次标注的词性与树库标注遵循宾州树库第二版（Penn Treebank II）规范，并融入了由GALE（Global Autonomous Language Exploitation，全球自主语言开发）项目制定的规范修订内容。这些修订主要涉及带连字符的复合词分词、因分词调整带来的词性与句法树变更，以及为适配更新后的标注规范而进行的句法标注更新。本次发布还附带了英语树库与网络文本的补充标注指南。</p><br><h3>语料数据</h3><br><p>源数据为LDC于2011年至2012年采集的英语网络论坛文本。我们从该语料集中选取了子集（共702个文件，总计268,907个词元（Token））用于树库构建，并对其进行词级分词、词性标注与句法结构标注。</p><br><p>语料采用多种UTF-8编码的文本格式，具体包括纯文本、可扩展标记语言（XML）以及宾州树库（Penn Treebank）格式。具体格式的详细说明请参见附带的文档。</p><br><h3>致谢</h3><br><p>本材料基于美国国防高级研究计划局（DARPA）在合同HR0011-11-C-0145下支持的研究工作。本内容不一定反映政府的立场或政策，也不应被视为获得官方背书。</p><br><h3>示例</h3><br><p>请查看以下示例：</p><br><ul><br><li><a href="desc/addenda/LDC2019T15.eng.su.xml.src.flat.txt">源文本</a></li><br><li><a href="desc/addenda/LDC2019T15.xml.tree.txt">宾州树库格式文本</a></li><br><li><a href="desc/addenda/LDC2019T15.xml">XML文件</a></li><br></ul><br><h3>更新记录</h3><br><p>暂无更新。</p><br>Portions © 2011-2019 Trustees of the University of Pennsylvania