"Järvelin, Kalervo" - Selaus tekijän mukaan Erillisteokset ja sarjajulkaisut
Järvelin, Kalervo; Kekäläinen, Jaana
Department of Information Studies: Research Notes : 2002-2 (2002)
reportModern large retrieval environments tend to overwhelm their users by their large output. Since all documents are not of equal relevance to their users, highly relevant documents should be identified and ranked first for ...
Järvelin, Kalervo; Kekäläinen, Jaana; Niemi, Timo
Department of Information Studies: Research Notes : 2001-1 (2001)
reportWe develop a deductive data model for concept-based query expansion. It is based on three abstraction levels: the conceptual, linguistic and string levels. Concepts and relationships among them are represented at the ...
Informetrics through Advanced Data Management. Complex Object Restructuring, Data Aggregation and Transitive Computation Järvelin, Kalervo; Ingwersen, Peter; Niemi, Timo
Department of Information Studies: Research Notes : 1999-1 (1999)
reportThis article considers how informetric calculations can easily and declaratively be specified through advanced data management techniques. In particular, bibliographic data and its modeling as complex objects (non-first ...
Salosaari, Pekka; Järvelin, Kalervo
Department of Information Studies: Research Notes : 1998-1 (Tampereen yliopisto, 1998)
reportTraditionally, information retrieval in music has been based on surrogates of music, i.e., bibliographic descriptions of music documents. This does not provide access to the essence of music, whether it is defined as the ...