Name
Abstract | ||
|---|---|---|
Keyword search (KWS) over relational databases has recently received significant attention. Many solutions and many prototypes have been developed. This task requires addressing many issues, including robustness, accuracy, reliability, and privacy. An emerging issue, however, appears to be performance related: current KWS systems have unpredictable running times. In particular, for certain queries it takes too long to produce answers, and for others the system may even fail to return (e.g., after exhausting memory). In this paper we argue that as today's users have been "spoiled" by the performance of Internet search engines, KWS systems should return whatever answers they can produce quickly and then provide users with options for exploring any portion of the answer space not covered by these answers. Our basic idea is to produce answers that can be generated quickly as in today's KWS systems, then to show users query forms that characterize the unexplored portion of the answer space. Combining KWS systems with forms allows us to bypass the performance problems inherent to KWS without compromising query coverage. We provide a proof of concept for this proposed approach, and discuss the challenges encountered in building this hybrid system. Finally, we present experiments over real-world datasets to demonstrate the feasibility of the proposed solution. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.14778/1920841.1920863 | PVLDB |
Keywords | Field | DocType |
performance problem,relational data,internet search engine,combining kws system,hybrid system,certain query,users query form,answer space,kws system,scalable keyword search,current kws system,keyword search | Internet search engines,Data mining,Information retrieval,Relational database,Computer science,Keyword search,Robustness (computer science),Proof of concept,Hybrid system,Database,Scalability | Journal |
Volume | Issue | ISSN |
3 | 1-2 | 2150-8097 |
Citations | PageRank | References |
23 | 0.81 | 26 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Akanksha Baid | 1 | 170 | 8.41 |
| Ian Rae | 2 | 86 | 3.56 |
| Jiexing Li | 3 | 211 | 10.36 |
| AnHai Doan | 4 | 4472 | 360.65 |
| Jeffrey F. Naughton | 5 | 8363 | 1913.71 |