Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Ziyang Liu"'
Autor:
Shirshanka Das, Issac Buenrostro, Narasimha R. Veeramreddy, Min Tu, Kapil Surlaker, Yinan Li, Lin Qiao, Chavdar Botev, Ying Dai, Sahil Takiar, Ziyang Liu
Publikováno v:
Proceedings of the VLDB Endowment. 8:1764-1769
Data ingestion is an essential part of companies and organizations that collect and analyze large volumes of data. This paper describes Gobblin, a generic data ingestion framework for Hadoop and one of LinkedIn's latest open source products. At Linke
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
Autor:
Ziyang Liu, Yi Chen
Publikováno v:
ACM Transactions on Database Systems. 37:1-30
Studies show that about 50% of Web search is for information exploration purposes, 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 a
Publikováno v:
ACM Transactions on Database Systems. 36:1-35
Workflow views abstract groups of tasks in a workflow into high level composite tasks, in order to reuse subworkflows and facilitate provenance analysis. However, unless a view is carefully designed, it may not preserve the dataflow between tasks in
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
Autor:
Ziyang Liu, Tim Meehan, Peng Sun, Stephen Booher, Yi Chen, Sivaramakrishnan Natarajan, Robert Winkler
Publikováno v:
Proceedings of the VLDB Endowment. 3:1581-1584
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:
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
Autor:
Ziyang Liu, Yi Chen
Publikováno v:
ACM Transactions on Database Systems. 35:1-47
Keyword search enables Web users to easily access XML data without the need to learn a structured query language and to study possibly complex data schemas. Existing work has addressed the problem of selecting qualified data nodes that match keywords
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. 2:1614-1617
Workflow views abstract groups of tasks in a workflow into composite tasks, and are used for simplifying provenance analysis, workflow sharing and reuse. An unsound view does not preserve the dataflow between tasks in the workflow, and can therefore