Rank aggregation methods for the Web
Proceedings of the 10th international conference on World Wide Web
Optimal aggregation algorithms for middleware
PODS '01 Proceedings of the twentieth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Global Optimization by Multilevel Coordinate Search
Journal of Global Optimization
Multimedia search with pseudo-relevance feedback
CIVR'03 Proceedings of the 2nd international conference on Image and video retrieval
Efficient algorithms for function approximation with piecewise linear sigmoidal networks
IEEE Transactions on Neural Networks
Optimal multimodal fusion for multimedia data analysis
Proceedings of the 12th annual ACM international conference on Multimedia
Graph based multi-modality learning
Proceedings of the 13th annual ACM international conference on Multimedia
How many high-level concepts will fill the semantic gap in news video retrieval?
Proceedings of the 6th ACM international conference on Image and video retrieval
Optimizing multi-graph learning: towards a unified video annotation scheme
Proceedings of the 15th international conference on Multimedia
An integrated statistical model for multimedia evidence combination
Proceedings of the 15th international conference on Multimedia
Information Fusion in Multimedia Information Retrieval
Adaptive Multimedial Retrieval: Retrieval, User, and Semantics
Study on the combination of video concept detectors
MM '08 Proceedings of the 16th ACM international conference on Multimedia
Can feature information interaction help for information fusion in multimedia problems?
Multimedia Tools and Applications
Foundations and Trends in Information Retrieval
Concept detectors: how good is good enough?
MM '09 Proceedings of the 17th ACM international conference on Multimedia
Unified video annotation via multigraph learning
IEEE Transactions on Circuits and Systems for Video Technology
Properties of optimally weighted data fusion in CBMIR
Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval
News contextualization with geographic and visual information
MM '11 Proceedings of the 19th ACM international conference on Multimedia
AMR'10 Proceedings of the 8th international conference on Adaptive Multimedia Retrieval: context, exploration, and fusion
Simulating the future of concept-based video retrieval under improved detector performance
Multimedia Tools and Applications
Enhancing news organization for convenient retrieval and browsing
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
Multimedia search reranking: A literature survey
ACM Computing Surveys (CSUR)
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Combining search results from multimedia sources is crucial for dealing with heterogeneous multimedia data, particularly in multimedia retrieval where a final ranked list of items of interest is returned sorted by confidence or relevance. However, relatively little attention has been given to combination functions, especially their upper bound performance limits. This paper presents a theoretical framework for studying upper bounds for two types of combination functions. A general upper bound and two approximations are proposed for monotonic combination functions. We also studied the upper bounds for linear combination functions using a global optimization technique. Our experimental results show that the choice of combination functions has a considerable influence to retrieval performance.