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RIAO
2007
13 years 10 months ago
Query Refinement based on Topical Term Clustering
We propose a method for supporting query refinement using topical term clusters. First, we propose a new term weighting method that can extract terms strongly related to a specifi...
Hiromi Wakaki, Tomonari Masada, Atsuhiro Takasu, J...
TREC
2008
13 years 10 months ago
A Study of Adaptive Relevance Feedback - UIUC TREC 2008 Relevance Feedback Experiments
In this paper, we report our experiments in the TREC 2008 Relevance Feedback Track. Our main goal is to study a novel problem in feedback, i.e., optimization of the balance of the...
Yuanhua Lv, ChengXiang Zhai
TREC
2008
13 years 10 months ago
The University College London at TREC 2008 Enterprise Track
The University College London Information Retrieval Group participated in both the Expert Search and Document Search tasks in the TREC2008 Enterprise Track. We used a generic two-...
Jianhan Zhu
RIAO
2007
13 years 10 months ago
Similarity Beyond Distance Measurement
One of the keys issues to content-based image retrieval is the similarity measurement of images. Images are represented as points in the space of low-level visual features and mos...
Feng Kang, Rong Jin, Steven C. H. Hoi
RIAO
2007
13 years 10 months ago
Document frequency and term specificity
Document frequency is used in various applications in Information Retrieval and other related fields. An assumption frequently made is that the document frequency represents a lev...
Hideo Joho, Mark Sanderson
RIAO
2007
13 years 10 months ago
ORCHIVE: Digitizing and Analyzing Orca Vocalizations
This paper describes the process of creating a large digital archive of killer whale or orca vocalizations. The goal of the project is to digitize approximately 20000 hours of exi...
George Tzanetakis, Mathieu Lagrange, Paul Spong, H...
RIAO
2007
13 years 10 months ago
SportsAnno: What Do You Think?
The automatic summarisation of sports video is of growing importance with the increased availability of on-demand content. Consumers who are unable to view events live often have ...
James Lanagan, Alan F. Smeaton
RIAO
2007
13 years 10 months ago
Discriminative Fields for Modeling Semantic Concepts in Video
According to some current thinking, a very large number of semantic concepts could provide researcher a novel way to characterize video and be utilized for video retrieval and und...
Ming-yu Chen, Alexander G. Hauptmann
RIAO
2007
13 years 10 months ago
Using Markov Chains to Exploit Word Relationships in Information Retrieval
Document expansion and query expansion aim to add related terms into document and query representations in order to make them more complete. However, most previous studies are lim...
Guihong Cao, Jian-Yun Nie, Jing Bai
RIAO
2007
13 years 10 months ago
Content-Based Peer-to-Peer Network Overlay for Full-Text Federated Search
Peer-to-peer network overlays have mostly been designed to support search over document names, identifiers, or keywords from a small or controlled vocabulary. In this paper we pro...
Jie Lu, Jamie Callan