Some simple effective approximations to the 2-Poisson model for probabilistic weighted retrieval
SIGIR '94 Proceedings of the 17th annual international ACM SIGIR conference on Research and development in information retrieval
Pivoted document length normalization
SIGIR '96 Proceedings of the 19th annual international ACM SIGIR conference on Research and development in information retrieval
The Earth Mover's Distance as a Metric for Image Retrieval
International Journal of Computer Vision
A study of smoothing methods for language models applied to Ad Hoc information retrieval
Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval
Information Retrieval
Modern Information Retrieval
SIGIR '02 Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval
A Pseudo-Metric for Weighted Point Sets
ECCV '02 Proceedings of the 7th European Conference on Computer Vision-Part III
An Information-Theoretic Definition of Similarity
ICML '98 Proceedings of the Fifteenth International Conference on Machine Learning
A new polynomial-time algorithm for linear programming
STOC '84 Proceedings of the sixteenth annual ACM symposium on Theory of computing
An information-theoretic measure for document similarity
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
Language Modeling for Information Retrieval
Language Modeling for Information Retrieval
Multi-paragraph segmentation of expository text
ACL '94 Proceedings of the 32nd annual meeting on Association for Computational Linguistics
Cohesion and collocation: using context vectors in text segmentation
ACL '99 Proceedings of the 37th annual meeting of the Association for Computational Linguistics on Computational Linguistics
Progress in information retrieval
ECIR'06 Proceedings of the 28th European conference on Advances in Information Retrieval
Contextual web searches in Facebook using learning materials and discussion messages
Computers in Human Behavior
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A novel document similarity measure based on the Proportional Transportation Distance (PTD) is proposed in this paper. The proposed measure improves on the previously proposed similarity measure based on optimal matching by allowing many-to-many matching between subtopics of documents. After documents are decomposed into sets of subtopics, the Proportional Transportation Distance is employed to evaluate the similarity between sets of subtopics for two documents by solving a transportation problem. Experiments on TDT-3 data demonstrate its good ability for measuring document similarity and also its high robustness, i.e. it does not rely on the underlying document decomposition algorithm largely as the optimal matching based measure.