“无论”类连词在句法分析中的标记功能——面向信息处理的现代汉语语法研究

目前可供信息处理用的语言知识还很不够 ,而现代汉语的句法单位类型和句法功能、语义关系的对应情况又比较复杂 ,针对这一情况 ,文章提出了由格式标记驱动的自然语言分析方法 ,并以“无论”类连词为例 ,做了具体分析。文章对“无论”类连词的句法分布情况做了比较细致的描述 ,在此基础上得出了一系列标记性框架 ,并制定了自动分析规则     

Identifying and Interpreting Prewar and Wartime Jewish Photographs in Polish Digital Collections

Prewar and wartime photographs of Polish Jews are historical documents and unique records. A worldwide interest in photographs presenting Jewish life in Poland on the eve of the Holocaust and during the war has been sustained by the traveling exhibit And I Still See Their Faces: Images of Polish Jews, which first opened in Poland in 1996. In recent years, some Polish archives and research institutes have begun digitizing their photography collections, including prewar and wartime photographs of Polish Jews and their communities. In this article, the author focuses on two main questions: the archiving and retrieval of digitized photographs and the identification and subject analysis of the digitized collections, including participatory or social “tagging.”     

Exploring Library 2.0 on the Social Web

Library 2.0 literature has described many of the possibilities Web 2.0 technologies offer to libraries. Case studies have assessed local use, but no studies have measured the Library 2.0 phenomenon by searching public social networking sites. This study used library-specific terms to search public social networking sites, blog search engines, and social bookmarking sites for activity associated with librarians and library users. Blog search data about the recentness of activity or the popularity of a blog post indicate that Library 2.0 technology has many early adopters but provides less evidence of sustained use. The results follow a curve resembling the 80/20 rule and also resemble Chris Anderson's “long tail” effect, in which very few authors create the vast amount of content. These exploratory results can be used as a starting point for future studies. Librarians who use tags to describe Web-based content might use these findings to select more effective tags. Librarians implementing a blog or a social networking presence might use this study to balance the benefits with the amount of work required to maintain an up-to-date presence.     

整合型学习者语料库平台的规划与实现——以中国日语学习者语料库CJLC的构建为例

建立学习者语料库能为二语习得等方面的研究提供新的思路和方法。但是,迄今为止的语料库建设由于缺乏统一的平台支持,存在着协同困难、重复劳动多以及升级、版权保护难等问题。通过构建整合型学习者语料库建设应用平台则能够极大地提高建设的效率和效果。     

水稻T-DNA插入突变技术研究

随着水稻基因组全序列的测定完成,功能基因组学已成为重点研究内容.农杆菌介导的T-DNA标签法是近年发展起来的一种有效的分子生物学技术.它具有程序简便,转化效率高,大规模转化等特点.阐述了T-DNA标签法及其改进后的激活标签技术和增强子技术的特点,并介绍了T-DNA插入突变在水稻突变体库的建立中所取得的研究进展,从而表明T-DNA插入突变技术是水稻功能基因组研究的一个有效途径.     

基于模块化聚类的标签弹性推荐

[目的/意义]社会化标注系统为用户检索提供便利的同时也面临一些困扰,标签推荐研究有助于解决资源检索中精确度与召回率之间的两难抉择。[过程/方法]借助网络科学的理论与方法,通过对标签网络的模块化聚类处理获得主题聚类,采用度数中心度对主题聚类内部标签进行排名,根据特定规则选取Top-N标签数量。[结果/结论]实验结果显示,研究中提出的模块化Top-N标签推荐方法,具有可逐层细化的精确度和良好的召回率。该方法的弹性机制可为不同的检索要求提供差异化服务。     

搜索引擎查询日志的词性标注和挖掘研究

利用搜狗（Sogou）2007年3月的查询日志,使用词性标注方法,得出高频词性标注结果的分布特征。发现用户在查询中以使用名词为主,动词为辅,鲜有其它词类出现在高频词性标注结果中。以“的”为代表的虚词较少地出现在高频词性标注结果中。网络搜索的查询式与自然语言在句法上存在一定差异,但也有相通之处。用户主要使用名词进行概念性检索,关键词仍为用户进行检索的主要手段。高频词性标注结果部分符合Zipf定律。     

The influence of personalization on tag query length in social media search

Social content systems contain enormous collections of unstructured user-generated content, annotated by the collaborative effort of regular Internet users. Tag-clouds have become popular interfaces that allow users to query the database of these systems by clicking relevant terms. However, these single click queries are often not expressive enough to effectively retrieve the desired content. Users have to use multiple clicks or type longer queries to satisfy their information need.     

公众分类法(Folksonomy)基础性理论研究

本文阐述了公众分类法产生的背景及其含义,分析了其特征和类型,通过与传统分类法对比,论述了公众分类法的优点及其局限性,最后展望了公众分类法的研究方向。