Sciweavers

ICDE
2009
IEEE
210views Database» more  ICDE 2009»
14 years 6 months ago
Keyword Search in Spatial Databases: Towards Searching by Document
This work addresses a novel spatial keyword query called the m-closest keywords (mCK) query. Given a database of spatial objects, each tuple is associated with some descriptive inf...
Dongxiang Zhang, Yeow Meng Chee, Anirban Mondal, A...
ICDE
2009
IEEE
122views Database» more  ICDE 2009»
14 years 6 months ago
Best-Effort Top-k Query Processing Under Budgetary Constraints
Abstract-- We consider a novel problem of top-k query processing under budget constraints. We provide both a framework and a set of algorithms to address this problem. Existing alg...
Michal Shmueli-Scheuer, Chen Li, Yosi Mass, Haggai...
ICDE
2009
IEEE
101views Database» more  ICDE 2009»
14 years 6 months ago
Power Hints for Query Optimization
Commercial database systems expose query hints to address situations in which the optimizer chooses a poor plan for a given query. However, current query hints are not flexible eno...
Nicolas Bruno, Surajit Chaudhuri, Ravishankar Rama...
ICDE
2009
IEEE
180views Database» more  ICDE 2009»
14 years 6 months ago
Outsourcing Search Services on Private Spatial Data
Social networking and content sharing service providers, e.g., Facebook and Google Maps, enable their users to upload and share a variety of user-generated content, including locat...
Man Lung Yiu, Gabriel Ghinita, Christian S. Jensen...
ICDE
2009
IEEE
198views Database» more  ICDE 2009»
14 years 6 months ago
V*-kNN: An Efficient Algorithm for Moving k Nearest Neighbor Queries
This demonstration program presents the V*-kNN algorithm, an efficient algorithm to process moving k nearest neighbor queries (MkNN). The V*-kNN algorithm is based on a safe-region...
Sarana Nutanong, Rui Zhang, Egemen Tanin, Lars Kul...
ICDE
2009
IEEE
135views Database» more  ICDE 2009»
14 years 6 months ago
Forward Decay: A Practical Time Decay Model for Streaming Systems
Temporal data analysis in data warehouses and data streaming systems often uses time decay to reduce the importance of older tuples, without eliminating their influence, on the res...
Graham Cormode, Vladislav Shkapenyuk, Divesh Sriva...
ICDE
2009
IEEE
114views Database» more  ICDE 2009»
14 years 6 months ago
On Efficient Query Processing of Stream Counts on the Cell Processor
In recent years, the sketch-based technique has been presented as an effective method for counting stream items on processors with limited storage and processing capabilities, such...
Dina Thomas, Rajesh Bordawekar, Charu C. Aggarwal,...
ICDE
2009
IEEE
156views Database» more  ICDE 2009»
14 years 6 months ago
Integrating and Ranking Uncertain Scientific Data
Mediator-based data integration systems resolve exploratory queries by joining data elements across sources. In the presence of uncertainties, such multiple expansions can quickly ...
Landon Detwiler, Wolfgang Gatterbauer, Brenton Lou...
ICDE
2009
IEEE
205views Database» more  ICDE 2009»
14 years 6 months ago
Top-k Exploration of Query Candidates for Efficient Keyword Search on Graph-Shaped (RDF) Data
Keyword queries enjoy widespread usage as they represent an intuitive way of specifying information needs. Recently, answering keyword queries on graph-structured data has emerged ...
Thanh Tran, Haofen Wang, Sebastian Rudolph, Philip...
ICDE
2009
IEEE
143views Database» more  ICDE 2009»
14 years 6 months ago
Fa: A System for Automating Failure Diagnosis
Abstract-Failures of Internet services and enterprise systems lead to user dissatisfaction and considerable loss of revenue. Since manual diagnosis is often laborious and slow, the...
Songyun Duan, Shivnath Babu, Kamesh Munagala