Finding Top-k Min-Cost Connected Trees in Databases

  title={Finding Top-k Min-Cost Connected Trees in Databases},
  author={Bolin Ding and Jeffrey Xu Yu and Shan Wang and Lu Qin and Xiao Zhang and Xuemin Lin},
  journal={2007 IEEE 23rd International Conference on Data Engineering},
It is widely realized that the integration of database and information retrieval techniques will provide users with a wide range of high quality services. In this paper, we study processing an l-keyword query, p1, p1, ..., pl, against a relational database which can be modeled as a weighted graph, G(V, E). Here V is a set of nodes (tuples) and E is a set of edges representing foreign key references between tuples. Let Vi ⊆ V be a set of nodes that contain the keyword pi. We study finding top-k… CONTINUE READING
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