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Mia Thykesson, Lars-Arne Sjöberg & Per Ahlgren. Utgivningsår: 1997. Publikationstyp: rapport - arbetsrapport. Sammanfattning: The scope of the present investigation was to widen the ...
ITIMS72 Introduction to Bibliometrics 3 ECTS / Johdatus bibliometriikkaan 3 op ... Per Ahlgren, Stockholm University
Pirjo Laitonen (co-supervision with Ilkka Mäkinen). My former student, Dr. Per Ahlgren defended succesfully his thesis 17.12.2004 in Borås.
Per Åhlgren: 668,810: 11/9/2010: RWCA: Jessica Tyreman: 2,678,250: 11/9/2010: RWCA: Marcus Hamberg: 4,939,085: 9/21/2010: RWCA: Per Åhlgren: 10,000: 9/20/2010: RWCA: Per Åhlgren
PER AHLGREN 157 Query Expansion Per Ahlgren The purpose of query expansion, the process of adding new terms to a query, is to improve the retrieval effectiveness.
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