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Modern Web technologies lead to a new virtual reality, where instead of the usual sites and pages Internet user will be provided with structured audio, video or textual information. This information will be generated as a response to the specification of user's needs. The situation requires various Target Web search engines to appear that provide domain-specific interfaces for the obtaining and processing...
It is important for Web search engine providers to study user behaviour in order to have a better understanding of how customers interact with search engines so that they can improve users' overall search experience. However, user behaviour in a search engine is complicated and affected by various factors, e.g. query length, intention/context/time when queries are submitted, etc. It is interesting...
The answer extraction is an important step in Q&A System and other fields of the Natural Language Processing; the result of answer extraction is directly associated with the quality of Q&A System. In this paper, the method, answer extraction of simple question based on web knowledge library, is realized through computing the similarity of simple question; the question with the most similarity...
In this work, Web-based metrics that compute the semantic similarity between words or terms are presented and compared with the state of the art. Starting from the fundamental assumption that similarity of context implies similarity of meaning, relevant Web documents are downloaded via a Web search engine and the contextual information of words of interest is compared (context-based similarity metrics)...
As the dominant tool to access information online, Web search engines still struggle to improve the quality of search results using various methods. Among these methods, query expansion and document refinement are particularly useful and effective. Query expansion aims at generating an expanded query by adding new terms and phrases, but document refinement keeps Web queries invariant and ceaselessly...
With the development of on-line forum technology and the pervasive participation of the public, the Human Flesh Search is becoming an arising phenomenon which makes a great impact on our daily life. There arose big research interests in social, legal issues resulted from HFS, however, very little work has been conducted to understand how it comes into being and how it dynamically evolves. This paper...
Today's search engines are still very sensitive to the way queries are constructed. In some occasions, equivalent but slightly different forms of a query lead to completely different results. However, popular queries with only one right answer seem to be generally well served by search engines, which generally return the correct answer among their top 10 search results. Internet's redundancy of information...
This paper regards Web as a semantic lexicon and alleviates the problem of bilingual lexical knowledge acquiring. Based on mix-language Web page counts, four Web bilingual relatedness (WBR) measurements are built. WBR measurements are evaluated by a modified Miller-Charles' dataset and it is found that the measurement based on point-wise mutual information achieves the best performance. Furthermore,...
Web spamming, the practice of introducing artificial text and links into Web pages to affect the results of searches, has been recognized as a major problem for search engines. But it is mainly a serious problem for Web users because they tend to confuse trusting the search engine with trusting the results of a search. In this paper, we propose "backwards propagation of distrust,'' as an approach...
As computers and computer networks become more sophisticated, a vast amount of information and knowledge has been accumulated and circulated on the Web. They provide people with options regarding their daily lives and are starting to have a strong influence on governmental policies and business management. However, a crucial problem is that information on the Web is not necessarily credible. It is...
This paper introduces an early stage of a smart toy development project which combines several techniques to achieve a level of conversational skills and knowledge higher than currently available robots for children. We describe our ideas and achievements for three modules which we treat as the most important - topic unlimited talking engine, emotions recognizer and the moral behavior analyzer. We...
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