Traditional research contribution indicators such as citation rate and citation factor are derived from macro-level data of the objects evaluated. This paper proposes a novel national contribution indicator, National Contribution (NC), which takes into account the micro-level information given in the cited-citing matrix for the objects. We define 'elementary contribution' cij from nation i to nation j for individual articles, which derive a normalized cited-citing matrix. NC's of nations are obtained from the eigenvector analysis of this matrix. An experiment using citation data to articles in 4 journals in library and information science showed that NC, although highly correlated to citation factor (cited-to-citing ratio), is an indicator reflecting the idea "a citation from a higher-contributing nation gives a higher contribution", which is not considered in citation factor.

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The authors tried to apply XML/RDF (Resource Description Framework) technologies to the knowledge domain related to the allergy which includes complicated data structures and semantic relationships among data elements and resources. The purpose of this work is threefold: (i) The design and the development of the ontology representing a set of the concepts and the relationships between these concepts for the knowledge domain devoted to the factors of allergic diseases; (ii) The application of this ontology for subject-indexing of resources related to the allergic diseases; (iii) The use of the created ontology and the indexing for retrieving the data from the resources. The structurization, representation and storage of metadata have been performed by using the Semantic Web technologies such as RDF and the Simple Knowledge Organisation System (SKOS). On the other hand, the structure of the web resources themselves is described by using the XML format.
In order to retrieve the information, represented by the Semantic Web technologies and XML, we developed a prototype web application. We further demonstrate that RDF and other Semantic Web technologies provide new possibilities for searching, browsing and retrieving the information accumulated in the life sciences.

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Archiving Web content is an important topic for digital libraries. Usually, Web archiving systems freely can collect, preserve and provide. However, Web archiving systems have disadvantages: it is difficult to collect all versions of a resource. We proposed a Web archiving system which is designed to collect resources in accordance with a resource archiving policy determined by the person or organization which provides the resources on the Web. This system was designed without damage to the Web archive by reorganization. The Web archives should cooperate to reduce damage by the reorganization, and the cooperative task is to split archive and convert schema. We call this cooperative task the merge method. This paper describes the model of the Web archiving system which have functions of split and merge archives, and a prototype system implemented based on the model.

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[in Japanese]

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