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DEBU
2010
128views more  DEBU 2010»
15 years 1 months ago
Panda: A System for Provenance and Data
Panda (for Provenance and Data) is a new project whose goal is to develop a general-purpose system that unifies concepts from existing provenance systems and overcomes some limita...
Robert Ikeda, Jennifer Widom
DEBU
2010
139views more  DEBU 2010»
15 years 1 months ago
Refining Information Extraction Rules using Data Provenance
Developing high-quality information extraction (IE) rules, or extractors, is an iterative and primarily manual process, extremely time consuming, and error prone. In each iteratio...
Bin Liu 0002, Laura Chiticariu, Vivian Chu, H. V. ...
INFOCOM
2008
IEEE
15 years 10 months ago
Distributed Operator Placement and Data Caching in Large-Scale Sensor Networks
Abstract—Recent advances in computer technology and wireless communications have enabled the emergence of stream-based sensor networks. In such sensor networks, real-time data ar...
Lei Ying, Zhen Liu, Donald F. Towsley, Cathy H. Xi...
SIGMOD
2008
ACM
140views Database» more  SIGMOD 2008»
15 years 4 months ago
Near-optimal algorithms for shared filter evaluation in data stream systems
We consider the problem of evaluating multiple overlapping queries defined on data streams, where each query is a conjunction of multiple filters and each filter may be shared acr...
Zhen Liu, Srinivasan Parthasarathy 0002, Anand Ran...
ICPP
2007
IEEE
15 years 10 months ago
Difficulty-aware Hybrid Search in Peer-to-Peer Networks
—By combining an unstructured protocol with a DHT-based global index, hybrid peer-to-peer (P2P) improves search efficiency in terms of query recall and response time. The major c...
Hanhua Chen, Hai Jin, Yunhao Liu, Lionel M. Ni