ACM SIGIR Forum
A language modeling approach to information retrieval
A language modeling approach to information retrieval
Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval
A study of smoothing methods for language models applied to information retrieval
ACM Transactions on Information Systems (TOIS)
Spoken document retrieval from call-center conversations
SIGIR '06 Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval
Evaluation campaigns and TRECVid
MIR '06 Proceedings of the 8th ACM international workshop on Multimedia information retrieval
Video search reranking via information bottleneck principle
MULTIMEDIA '06 Proceedings of the 14th annual ACM international conference on Multimedia
The challenge problem for automated detection of 101 semantic concepts in multimedia
MULTIMEDIA '06 Proceedings of the 14th annual ACM international conference on Multimedia
Position specific posterior lattices for indexing speech
ACL '05 Proceedings of the 43rd Annual Meeting on Association for Computational Linguistics
Semantic concept-based query expansion and re-ranking for multimedia retrieval
Proceedings of the 15th international conference on Multimedia
A lattice-based approach to query-by-example spoken document retrieval
Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval
Mean-Variance Analysis: A New Document Ranking Theory in Information Retrieval
ECIR '09 Proceedings of the 31th European Conference on IR Research on Advances in Information Retrieval
Foundations and Trends in Information Retrieval
Reusing annotation labor for concept selection
Proceedings of the ACM International Conference on Image and Video Retrieval
Video shot boundary detection: Seven years of TRECVid activity
Computer Vision and Image Understanding
Everyday concept detection in visual lifelogs: validation, relationships and trends
Multimedia Tools and Applications
Visual concept-based selection of query expansions for spoken content retrieval
Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval
Exploiting noisy visual concept detection to improve spoken content based video retrieval
Proceedings of the international conference on Multimedia
Back to the roots: mean-variance analysis of relevance estimations
ECIR'11 Proceedings of the 33rd European conference on Advances in information retrieval
Recent developments in information retrieval
ECIR'2010 Proceedings of the 32nd European conference on Advances in Information Retrieval
Using visual lifelogs to automatically characterize everyday activities
Information Sciences: an International Journal
The uncertain representation ranking framework for concept-based video retrieval
Information Retrieval
Bridging memory-based collaborative filtering and text retrieval
Information Retrieval
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Current video search systems commonly return video shots as results. We believe that users may better relate to longer, semantic video units and propose a retrieval framework for news story items, which consist of multiple shots. The framework is divided into two parts: (1) A concept based language model which ranks news items with known occurrences of semantic concepts by the probability that an important concept is produced from the concept distribution of the news item and (2) a probabilistic model of the uncertain presence, or risk, of these concepts. In this paper we use a method to evaluate the performance of story retrieval, based on the TRECVID shot-based retrieval groundtruth. Our experiments on the TRECVID 2005 collection show a significant performance improvement against four standard methods.