Effective Keyword Search Over Weighted Graphs
IEEE Transactions on Knowledge and Data Engineering(2022)
摘要
Real graphs often contain edge and node weights, representing, for instance, penalty, distance or uncertainty. We study the problem of keyword search over weighted node-labeled graphs, in which a query consists of a set of keywords and an answer is a subgraph whose nodes contain the keywords. We evaluate answers using three ranking strategies: optimizing edge weights, optimizing node weights, and ...
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关键词
Proteins,Companies,Databases,Keyword search,Security,Uncertainty,Approximation algorithms
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