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PVLDB
2010
100views more  PVLDB 2010»
9 years 9 months ago
Efficient Proximity Detection among Mobile Users via Self-Tuning Policies
Given a set of users, their friend relationships, and a distance threshold per friend pair, the proximity detection problem is to find each pair of friends such that the Euclidean...
Man Lung Yiu, Leong Hou U, Simonas Saltenis, Kosta...
PVLDB
2010
139views more  PVLDB 2010»
9 years 9 months ago
Identifying the Most Influential Data Objects with Reverse Top-k Queries
Top-k queries are widely applied for retrieving a ranked set of the k most interesting objects based on the individual user preferences. As an example, in online marketplaces, cus...
Akrivi Vlachou, Christos Doulkeridis, Kjetil N&osl...
PVLDB
2010
128views more  PVLDB 2010»
9 years 9 months ago
Searching Workflows with Hierarchical Views
Workflows are prevalent in diverse applications, which can be scientific experiments, business processes, web services, or recipes. With the dramatically growing number of workflo...
Ziyang Liu, Qihong Shao, Yi Chen
PVLDB
2010
121views more  PVLDB 2010»
9 years 9 months ago
Efficient RkNN Retrieval with Arbitrary Non-Metric Similarity Measures
A RkNN query returns all objects whose nearest k neighbors contain the query object. In this paper, we consider RkNN query processing in the case where the distances between attri...
Deepak P, Prasad Deshpande
PVLDB
2010
190views more  PVLDB 2010»
9 years 9 months ago
Efficient B-tree Based Indexing for Cloud Data Processing
A Cloud may be seen as a type of flexible computing infrastructure consisting of many compute nodes, where resizable computing capacities can be provided to different customers. T...
Sai Wu, Dawei Jiang, Beng Chin Ooi, Kun-Lung Wu
PVLDB
2010
147views more  PVLDB 2010»
10 years 1 months ago
HYRISE - A Main Memory Hybrid Storage Engine
In this paper, we describe a main memory hybrid database system called HYRISE, which automatically partitions tables into vertical partitions of varying widths depending on how th...
Martin Grund, Jens Krüger, Hasso Plattner, Al...
PVLDB
2010
121views more  PVLDB 2010»
10 years 1 months ago
Personalized Privacy Protection in Social Networks
Due to the popularity of social networks, many proposals have been proposed to protect the privacy of the networks. All these works assume that the attacks use the same background...
Mingxuan Yuan, Lei Chen 0002, Philip S. Yu
PVLDB
2010
146views more  PVLDB 2010»
10 years 1 months ago
Graph Indexing of Road Networks for Shortest Path Queries with Label Restrictions
The current widespread use of location-based services and GPS technologies has revived interest in very fast and scalable shortest path queries. We introduce a new shortest path q...
Michael Rice, Vassilis J. Tsotras
PVLDB
2010
93views more  PVLDB 2010»
10 years 1 months ago
Distributed Threshold Querying of General Functions by a Difference of Monotonic Representation
The goal of a threshold query is to detect all objects whose score exceeds a given threshold. This type of query is used in many settings, such as data mining, event triggering, a...
Guy Sagy, Daniel Keren, Izchak Sharfman, Assaf Sch...
PVLDB
2010
135views more  PVLDB 2010»
10 years 1 months ago
SXPath - Extending XPath towards Spatial Querying on Web Documents
Querying data from presentation formats like HTML, for purposes such as information extraction, requires the consideration of tree structures as well as the consideration of spati...
Ermelinda Oro, Massimo Ruffolo, Steffen Staab
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