Exploiting the Similarity of Non-Matching Terms at Retrieval Time

In classic Information Retrieval systems a relevant document will not be retrieved in response to a query if the document and query representations do not share at least one term. This problem, known as term mismatch, has been recognised for a long time by the Information Retrieval community and a number of possible solutions have been proposed. Here I present a preliminary investigation into a new class of retrieval models that attempt to solve the term mismatch problem by exploiting complete or partial knowledge of term similarity in the term space. The use of term similarity enables to enhance classic retrieval models by taking into account non-matching terms. The theoretical advantages and drawbacks of these models are presented and compared with other models tackling the same problem. A preliminary experimental investigation into the performance gain achieved by exploiting term similarity with the proposed models is presented and discussed.     

基于本体的论文检索系统的设计与实现

运用本体理论对计算机学科领域中的数据结构进行本体描述，探讨其本体库的构建过程，并在此基础上设计和实现基于本体的试验性论文检索系统，提高系统的检索性能。     

搜索引擎返回结果自动抽取

提出一种从搜索引擎返回结果页面上自动抽取结果记录及后续页面链接信息并生成Wrapper的方法:对于一个有效的结果页面，通过比较其HTML标签树上节点的相似度从而识别出潜在记录块，利用启发式规则从潜在记录块中将结果记录块和后续页面链接分别识别出来，然后利用其在标签树上的位置信息分别构造Wrapper。实验结论及与已有方法的比较表明，该方法简单可行且高效。     

The Difference and Application of Semantic Translation and Communicative Translation

The concepts of communicative and semantic translation represent Peter Newmark’s main contribution to general translation theory.Both semantic and communicative translations comply with the usually accepted syntactic equivalents or correspondences for the source text(ST) languages and the target language(TL) and each of the two translation methods has its own characteristics as well as application fields.     

模糊逻辑与自然语言中的语义模糊

自然语言和形式语言的一个重要区别,是自然语言具有语义模糊性。二值逻辑与三值逻辑对命题语义处理是不足的。以札德"模糊集合论"为理论基础的模糊语义分析为我们提供了一种描述模糊语词语义真值多样性和渐进性的全新观念和手段。     

On Peter Newmark’s Semanic Translation & Communicative Translation

Peter Newmark has written many preeminent works on translation theory. He classifies the translation texts into differ?ent types,and puts forward his great translation methods-communiative translation ...     

Effective ranking and search techniques for Web resources considering semantic relationships

On the Semantic Web, the types of resources and the semantic relationships between resources are defined in an ontology. By using that information, the accuracy of information retrieval can be improved.     

基于专利SAO结构的技术应用领域识别方法研究

论文提出了一种基于SAO结构的技术应用领域识别方法。首先提取专利摘要中的应用领域信息,然后利用自然语言处理工具获取其SAO结构,通过SAO结构之间的语义相似度计算,得到根据相似性聚类绘制的专利地图,实现技术应用领域的识别。最后以石墨烯传感器技术为例对所提出的研究方法进行了示范。本文提出的识别方法,可以实现技术按应用领域的划分,为技术跨领域应用研究奠定了基础。     

Gabor传递函数相似性测度图像质量评价算法

数字图像在压缩和融合等处理中会产生退化效应,当前对图像退化中质量评价指标如均方误差(MSE),峰值信噪比(PSNR)等不能有效反映图像在退化过程中传递性能,而只是单纯计算图像之间灰度值差异,对图像质量评价不准。提出一种利用Gabor传递函数相似性测度为评价指标的图像质量评价算法,采用图像的亮度、对比度和结构相似度为场景结构基准特征,设计Gabor传递函数。通过双正交滤波器得到Gabor传递函数相似性测度,该指标能有效反映图像退化演变过程中的传递性能,合理评价参考图像和失真图像质量。仿真实验表明,利用Gabor传递函数相似性测度指标评价图像质量,能准确反映图像失真等级,在几乎所有失真类型上都能有较满意的结果,评价结果比较稳定。     

埃及女王与中国女皇主要家庭成员比较研究——哈特谢普苏特与武则天

第十八王朝国王哈特谢普苏特,是古埃及历史上第一位女法老[1];武周王朝皇帝武则天,则是中国历史上唯一一位女皇帝。她们的生平经历有着惊人的相似,不仅如此,就连她们的公公、丈夫、儿女等主要家庭成员都似乎因为与她们命运相系而有着极为相似的生平经历,本文将探寻其中的相似性并加以比较。