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In this paper, we propose a method for constructing a judging model of closeness in human relations, which plays an important role in human communication. The purpose of this model is to clarify the correlation between linguistic honorific expressions and closeness in order to develop a support tool related to the utilization of honorific expressions using information technology. Existing studies...
Many commercial DBMSs based on a column-oriented storage method have been used to analyze large-scale data. However, the column-oriented DBMS is difficult to use for processing big-data analysis updated in real time, because the column-oriented storage performs inefficient OLTP when processing row-oriented updates. Therefore, we attempted to enable the column-oriented DBMS to efficiently process OLTP...
Program execution traces (simply traces in the rest of this paper) which include data/control dependency information are indispensable for new kind of debugging, such as back-in-time debugging. We aim to support debugging of Java programs. Traces of practical programs are prone to have vast amount of complex data, which makes it difficult to develop practical debuggers to use for them. In our previous...
Database systems have recently utilized both row-and a column-oriented storage systems, also termed as hybrid storage, as their storage devices for large scale data management. The hybrid storage based database systems should ideally be operated on distributed computing environments for query optimization, however, studies on query optimization of such database systems are not available in literature...
The use of recommender systems to support users' search and selection of items in an information overloaded environment is widespread. Usually, precision and recall are utilized for evaluating a recommender system. However, an alternative measure should be considered, because a user's satisfaction is the most important factor to be considered when constructing a recommender system. Briefly, there...
In this paper, we propose a method to expand XML element retrieval techniques into Web documents. XML element retrieval techniques return partial (sub) documents as search results, and are expected to be able to apply to other structured documents, namely, Web documents besides XML documents. The point is that physical document structures of Web documents are literally disorganized because Web documents...
In recent years, the expansion of e-commerce has led to a rapid increase in the number of customer reviews on websites. In general, the reviews are written by consumers after they have purchased or used the products. However, reviews may not only be written by users who have experience of the products, making it difficult to determine which reviews are useful references when purchasing items. On e-commerce...
In this paper we propose a path expression-based smoothing method of query likelihood model for XML element retrieval (QLMER). Though the query likelihood model, one of the statistical language models, is regarded as an accurate term weighting scheme in document retrieval, it has not been surveyed enough in XML element retrieval. Some term Weighting schemes for XML element retrieval utilize the idea...
Recently, development of search engines helps to simplify human's information seeking behavior, because we can easily access useful information from the Web. However, search engine users tend to select only Web pages in a search result returned by the search engines considering their rankings. Consequently, the users just browse highly ranked Web pages, and cannot be conducive to find useful information...
In this paper, we propose a retrieval method for multimedia documents. In our method, features of each medium such as text, image, and their layout information are extracted from documents. For a given query, similarity values are calculated for each media, then those values are integrated into one similarity value per document. We propose four methods for calculating the integrated similarity values...
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