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SSD
2009
Springer
193views Database» more  SSD 2009»
14 years 2 months ago
Query Integrity Assurance of Location-Based Services Accessing Outsourced Spatial Databases
Outsourcing data to third party data providers is becoming a common practice for data owners to avoid the cost of managing and maintaining databases. Meanwhile, due to the populari...
Wei-Shinn Ku, Ling Hu, Cyrus Shahabi, Haixun Wang
SSD
2009
Springer
91views Database» more  SSD 2009»
14 years 2 months ago
Semantic Trajectory Compression
In the light of rapidly growing repositories capturing the movement trajectories of people in spacetime, the need for trajectory compression becomes obvious. This paper argues for ...
Falko Schmid, Kai-Florian Richter, Patrick Laube
SSD
2009
Springer
126views Database» more  SSD 2009»
14 years 2 months ago
A Location Privacy Aware Friend Locator
A location-based service called friend-locator notifies a user if the user is geographically close to any of the user’s friends. Services of this kind are getting increasingly p...
Laurynas Siksnys, Jeppe R. Thomsen, Simonas Salten...
SSD
2009
Springer
142views Database» more  SSD 2009»
14 years 2 months ago
Monitoring Orientation of Moving Objects around Focal Points
Abstract. We consider a setting with numerous location-aware moving objects that communicate with a central server. Assuming a set of focal points of interest, we aim at continuous...
Kostas Patroumpas, Timos K. Sellis
SSD
2009
Springer
145views Database» more  SSD 2009»
14 years 2 months ago
Versioning of Network Models in a Multiuser Environment
The standard database mechanisms for concurrency control, which include transactions and locking protocols, do not provide the support needed for updating complex geographic data i...
Petko Bakalov, Erik G. Hoel, Sudhakar Menon, Vassi...
SSD
2009
Springer
180views Database» more  SSD 2009»
14 years 2 months ago
Indexing Moving Objects Using Short-Lived Throwaway Indexes
With the exponential growth of moving objects data to the Gigabyte range, it has become critical to develop effective techniques for indexing, updating, and querying these massive ...
Jens Dittrich, Lukas Blunschi, Marcos Antonio Vaz ...
FQAS
2009
Springer
129views Database» more  FQAS 2009»
14 years 2 months ago
Representing Context Information for Document Retrieval
The bag of words representation (BoW), which is widely used in information retrieval (IR), represents documents and queries as word lists that do not express anything about context...
Maya Carrillo, Esaú Villatoro-Tello, Aureli...
FQAS
2009
Springer
157views Database» more  FQAS 2009»
14 years 2 months ago
On Fuzzy vs. Metric Similarity Search in Complex Databases
Abstract. The task of similarity search is widely used in various areas of computing, including multimedia databases, data mining, bioinformatics, social networks, etc. For a long ...
Alan Eckhardt, Tomás Skopal, Peter Vojt&aac...
FQAS
2009
Springer
127views Database» more  FQAS 2009»
14 years 2 months ago
Finding Top-k Approximate Answers to Path Queries
We consider the problem of finding and ranking paths in semistructured data without necessarily knowing its full structure. The query language we adopt comprises conjunctions of r...
Carlos A. Hurtado, Alexandra Poulovassilis, Peter ...
FQAS
2009
Springer
212views Database» more  FQAS 2009»
14 years 2 months ago
Exploiting Social Tagging Profiles to Personalize Web Search
In this paper, we investigate the exploitation of user profiles defined in social tagging services to personalize Web search. One of the key challenges of a personalization framewo...
David Vallet, Iván Cantador, Joemon M. Jose