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CIKM
2011
Springer
12 years 8 months ago
Factorization-based lossless compression of inverted indices
Many large-scale Web applications that require ranked top-k retrieval are implemented using inverted indices. An inverted index represents a sparse term-document matrix, where non...
George Beskales, Marcus Fontoura, Maxim Gurevich, ...
SIGIR
2010
ACM
14 years 23 days ago
Extending average precision to graded relevance judgments
Evaluation metrics play a critical role both in the context of comparative evaluation of the performance of retrieval systems and in the context of learning-to-rank (LTR) as objec...
Stephen E. Robertson, Evangelos Kanoulas, Emine Yi...
CIKM
2005
Springer
14 years 2 months ago
Internet scale string attribute publish/subscribe data networks
With this work we aim to make a three-fold contribution. We first address the issue of supporting efficiently queries over string-attributes involving prefix, suffix, containmen...
Ioannis Aekaterinidis, Peter Triantafillou
SIGIR
2010
ACM
13 years 9 months ago
Optimal meta search results clustering
By analogy with merging documents rankings, the outputs from multiple search results clustering algorithms can be combined into a single output. In this paper we study the feasibi...
Claudio Carpineto, Giovanni Romano
CIVR
2008
Springer
106views Image Analysis» more  CIVR 2008»
13 years 10 months ago
Eye localization for face matching: is it always useful and under what conditions?
In this paper we address the influence of eye localization accuracy on face matching performance in the case of low resolution image and video content. By means of a broad experim...
Bart Kroon, Alan Hanjalic, Sander M. P. Maas