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» Introduction to Information Retrieval
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IR
2010
15 years 4 months ago
Gradient descent optimization of smoothed information retrieval metrics
Abstract Most ranking algorithms are based on the optimization of some loss functions, such as the pairwise loss. However, these loss functions are often different from the criter...
Olivier Chapelle, Mingrui Wu
RIA
2010
39views more  RIA 2010»
15 years 4 months ago
Centering Information Retrieval to the User
Bernd Ludwig, Stefan Mandl
NAACL
2010
15 years 3 months ago
Clinical Information Retrieval using Document and PICO Structure
In evidence-based medicine, clinical questions involve four aspects: Patient/Problem (P), Intervention (I), Comparison (C) and Outcome (O), known as PICO elements. In this paper w...
Florian Boudin, Jian-Yun Nie, Martin Dawes
AICS
2009
15 years 3 months ago
The Effect of Query Length on Normalisation in Information Retrieval
Document length normalisation is known to be a difficult problem in IR, as tuning is often needed to overcome the collection dependence problem known to affect many normalisation s...
Ronan Cummins, Colm O'Riordan