194
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ECIR
2011
Springer
14 years 11 months ago
2011
Springer
Aggregate ranking tasks are those where documents are not the final ranking outcome, but instead an intermediary component. For instance, in expert search, a ranking of candidate ...
209
click to vote
ECIR
2011
Springer
14 years 11 months ago
2011
Springer
Abstract. Training data as well as supplementary data such as usagebased click behavior may abound in one search market (i.e., a particular region, domain, or language) and be much...
213
click to vote
ECIR
2011
Springer
14 years 11 months ago
2011
Springer
Expert finding addresses the problem of retrieving a ranked list of people who are knowledgeable on a given topic. Several models have been proposed to solve this task, but so far...
216
click to vote
ECIR
2011
Springer
14 years 11 months ago
2011
Springer
The User-over-Ranking hypothesis states that rather the user herself than a web search engine’s ranking algorithm can help to improve retrieval performance. The means are longer ...
206
click to vote
ECIR
2011
Springer
14 years 11 months ago
2011
Springer
We compare two methods for retrieval from multimodal collections. The first is a score-based fusion of results, retrieved visually and textually. The second is a two-stage method ...
195
click to vote
ECIR
2011
Springer
14 years 11 months ago
2011
Springer
Query-by-example video retrieval is receiving an increasing attention in recent years. One of the state-of-art approaches is the Bag-of-visual Words (BoW) based technique, where im...
249
click to vote
ECIR
2011
Springer
14 years 11 months ago
2011
Springer
In large web search engines the performance of Information Retrieval systems is a key issue. Block-based compression methods are often used to improve the search performance, but c...
198
click to vote
ECIR
2011
Springer
14 years 11 months ago
2011
Springer
Feature selection plays a vital role in text categorisation. A range of different methods have been developed, each having unique properties and selecting different features. We ...
249
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ECIR
2011
Springer
14 years 11 months ago
2011
Springer
Abstract. Content-based image retrieval (CBIR) with global features is notoriously noisy, especially for image queries with low percentages of relevant images in a collection. More...
189
click to vote
ECIR
2011
Springer
14 years 11 months ago
2011
Springer
Adaptation techniques based on importance weighting were shown effective for RankSVM and RankNet, viz., each training instance is assigned a target weight denoting its importance ...