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JCDL
2009
ACM
127views Education» more  JCDL 2009»
14 years 4 months ago
Finding topic trends in digital libraries
We propose a generative model based on latent Dirichlet allocation for mining distinct topics in document collections by integrating the temporal ordering of documents into the ge...
Levent Bolelli, Seyda Ertekin, Ding Zhou, C. Lee G...
RECSYS
2009
ACM
14 years 4 months ago
Regret-based optimal recommendation sets in conversational recommender systems
Current conversational recommender systems are unable to offer guarantees on the quality of their recommendations due to a lack of principled user utility models. We develop an ap...
Paolo Viappiani, Craig Boutilier
SIGIR
2009
ACM
14 years 4 months ago
Web-derived resources for web information retrieval: from conceptual hierarchies to attribute hierarchies
A weakly-supervised extraction method identifies concepts within conceptual hierarchies, at the appropriate level of specificity (e.g., Bank vs. Institution), to which attribute...
Marius Pasca, Enrique Alfonseca
SIGIR
2009
ACM
14 years 4 months ago
Experiments in CLIR using fuzzy string search based on surface similarity
Cross Language Information Retrieval (CLIR) between languages of the same origin is an interesting topic of research. The similarity of the writing systems used for these language...
Sethuramalingam Subramaniam, Anil Kumar Singh, Pra...
DASFAA
2008
IEEE
109views Database» more  DASFAA 2008»
14 years 4 months ago
Bulk-Loading the ND-Tree in Non-ordered Discrete Data Spaces
Applications demanding multidimensional index structures for performing efficient similarity queries often involve a large amount of data. The conventional tuple-loading approach t...
Hyun-Jeong Seok, Gang Qian, Qiang Zhu, Alexander R...