Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Ziyang Liu"'
Autor:
Yi Chen, Ziyang Liu
Publikováno v:
ACM Transactions on Internet Technology. 12:1-27
Keyword query is a user-friendly mechanism for retrieving useful information from XML data in Web and scientific applications. Inspired by the performance benefits of exploiting materialized views when processing structured queries, we investigate th
Publikováno v:
ACM Transactions on Database Systems. Jul2010, Vol. 35 Issue 3, p19-19:45. 45p. 8 Diagrams, 5 Charts, 14 Graphs.
Autor:
Ziyang Liu1 ziyang.liu@asu.edu, Yi Chen1 yi@asu.edu
Publikováno v:
ACM Transactions on Database Systems. Apr2010, Vol. 35 Issue 2, p10:1-10:47. 47p. 10 Diagrams, 12 Graphs.
Autor:
Ziyang Liu, Yi Chen
Publikováno v:
World Wide Web. 14:671-707
Keyword search is a user-friendly approach for users to retrieve information from XML data. Since an XML document can have a large size and contain a lot of information, an XML keyword search result should be a fragment of an XML document dynamically
Publikováno v:
Proceedings of the VLDB Endowment. 3:918-927
Workflows are prevalent in diverse applications, which can be scientific experiments, business processes, web services, or recipes. With the dramatically growing number of workflows, there is an increasing need for people to search a workflow reposit
Publikováno v:
ACM Transactions on Database Systems. 35:1-45
Snippets are used by almost every text search engine to complement the ranking scheme in order to effectively handle user searches, which are inherently ambiguous and whose relevance semantics are difficult to assess. Despite the fact that XML is a s
Publikováno v:
Proceedings of the VLDB Endowment. 2:313-324
Studies show that about 50% of web search is for information exploration purpose, where a user would like to investigate, compare, evaluate, and synthesize multiple relevant results. Due to the absence of general tools that can effectively analyze an
Publikováno v:
Proceedings of the VLDB Endowment. 1:1392-1395
Snippets are used by almost every text search engine to complement ranking schemes in order to effectively handle user keyword search. Despite the fact that XML is a standard representation format of web data, research on generating result snippets f
Autor:
Ziyang Liu, Yi Cher
Publikováno v:
Proceedings of the VLDB Endowment. 1:921-932
Keyword search is a user-friendly mechanism for retrieving XML data in web and scientific applications. An intuitively compelling but vaguely defined goal is to identify matches to query keywords that are relevant to the user. However, it is hard to
Publikováno v:
ICDE
Empowering users to access databases using simple keywords can relieve users from the steep learning curve of mastering a structured query language and understanding complex and possibly fast-evolving data schemas. In this tutorial, we give an overvi