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JIS
2006
96views more  JIS 2006»
14 years 11 months ago
A study of the effect of term proximity on query expansion
Query expansion terms are often used to enhance original query formulations in document retrieval. Such terms are usually selected from the entire documents or from windows or pas...
Olga Vechtomova, Ying Wang
ISM
2006
IEEE
86views Multimedia» more  ISM 2006»
15 years 5 months ago
OreDesk: A Tool for Retrieving Data History Based on User Operations
During day-to-day activities, a user refers to various data items on a PC, such as documents, images, and audio clips. However, when the number of items in the history increases, ...
Ryo Ohsawa, Kazunori Takashio, Hideyuki Tokuda
ICADL
2004
Springer
174views Education» more  ICADL 2004»
15 years 5 months ago
WebGIS-RBDL - A Rare Book Digital Library Supporting Spatio-Temporary Retrieval
In order to help researchers of humanities study the cultural ancient resources from temporal and geographical perspectives, we build WebGISRBDL at Peking University. In WebGIS-RBD...
Ming Zhang, Dongqing Yang, Zhi-Hong Deng, Sai Wu, ...
ECIR
2003
Springer
15 years 1 months ago
A Weighting Scheme for Star-Graphs
We present in this paper a relational approach for indexing and retrieving photographs from a collection. Instead of using simple keywords as an indexing language, we propose to u...
Jean Martinet, Iadh Ounis, Yves Chiaramella, Phili...

Publication
197views
13 years 7 months ago
Convex non-negative matrix factorization for massive datasets
Non-negative matrix factorization (NMF) has become a standard tool in data mining, information retrieval, and signal processing. It is used to factorize a non-negative data matrix ...
C. Thurau, K. Kersting, M. Wahabzada, and C. Bauck...