Linear structure in information retrieval
SIGIR '88 Proceedings of the 11th annual international ACM SIGIR conference on Research and development in information retrieval
Automatic text processing: the transformation, analysis, and retrieval of information by computer
Automatic text processing: the transformation, analysis, and retrieval of information by computer
A vector space model for automatic indexing
Communications of the ACM
Information Retrieval
Modern Information Retrieval
Some Formal Analysis of Roccio's Similarity-Based Relvance Feedback Algorithm
ISAAC '00 Proceedings of the 11th International Conference on Algorithms and Computation
Multiplicative Adaptive Algorithms for User Preference Retrieval
COCOON '01 Proceedings of the 7th Annual International Conference on Computing and Combinatorics
On the complexity of Rocchio's similarity-based relevance feedback algorithm
Journal of the American Society for Information Science and Technology
On the complexity of rocchio's similarity-based relevance feedback algorithm
ISAAC'05 Proceedings of the 16th international conference on Algorithms and Computation
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It is shown in [4] that Rocchio’s similarity-based relevance feedback algorithm makes Ω(n) mistakes in searching for a collection of documents represented by a monotone disjunction of at most k relevant features (or terms) over the n-dimensional binary vector space {0, 1}n. In practice, Rocchio’s algorithm often uses a fixed query updating factor and a fixed classification threshold. When this is the case, we strengthen the work in [4] in this paper and prove that Rocchio’s algorithm makes Ω(k(n–k)) mistakes in searching for the same collection of documents over the binary vector space {0, 1}n. A quadratic lower bound is obtained when k is proportional to n. An O(k(n–k)2) upper bound is also obtained.