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ECIR
2011
Springer
12 years 8 months ago
Fusion vs. Two-Stage for Multimodal Retrieval
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 ...
Avi Arampatzis, Konstantinos Zagoris, Savvas A. Ch...
ECIR
2011
Springer
12 years 8 months ago
Video Retrieval Based on Words-of-Interest Selection
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...
Lei Wang, Dawei Song, Eyad Elyan
ECIR
2011
Springer
12 years 8 months ago
SkipBlock: Self-indexing for Block-Based Inverted List
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...
Stéphane Campinas, Renaud Delbru, Giovanni ...
ECIR
2011
Springer
12 years 8 months ago
Combination of Feature Selection Methods for Text Categorisation
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 ...
Robert Neumayer, Rudolf Mayer, Kjetil Nørv&...
ECIR
2011
Springer
12 years 8 months ago
Dynamic Two-Stage Image Retrieval from Large Multimodal Databases
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...
Avi Arampatzis, Konstantinos Zagoris, Savvas A. Ch...
ECIR
2011
Springer
12 years 8 months ago
Weight-Based Boosting Model for Cross-Domain Relevance Ranking Adaptation
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 ...
Peng Cai, Wei Gao, Kam-Fai Wong, Aoying Zhou
ECIR
2011
Springer
12 years 8 months ago
Topical and Structural Linkage in Wikipedia
We explore statistical properties of links within Wikipedia. We demonstrate that a simple algorithm can predict many of the links that would normally be added to a new article, wit...
Kelly Y. Itakura, Charles L. A. Clarke, Shlomo Gev...
ECIR
2011
Springer
12 years 8 months ago
Combining Global and Local Semantic Contexts for Improving Biomedical Information Retrieval
In the context of biomedical information retrieval (IR), this paper explores the relationship between the document’s global context and the query’s local context in an attempt ...
Duy Dinh, Lynda Tamine
ECIR
2011
Springer
12 years 8 months ago
Back to the Roots: Mean-Variance Analysis of Relevance Estimations
Recently, mean-variance analysis has been proposed as a novel paradigm to model document ranking in Information Retrieval. The main merit of this approach is that it diversifies t...
Guido Zuccon, Leif Azzopardi, Keith van Rijsbergen
ECIR
2011
Springer
12 years 8 months ago
Towards Quantum-Based DB+IR Processing Based on the Principle of Polyrepresentation
The cognitively motivated principle of polyrepresentation still lacks a theoretical foundation in IR. In this work, we discuss two competing polyrepresentation frameworks that are ...
David Zellhöfer, Ingo Frommholz, Ingo Schmitt...