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COMAD
2008
13 years 5 months ago
Runtime Optimization of Continuous Queries
In data stream processing systems, Quality of Service (or QoS) requirements, as specified by users, are extremely important. Unlike in a database management system (DBMS), a query...
Balakumar Kendai, Sharma Chakravarthy
COMAD
2008
13 years 5 months ago
Disk-Based Sampling for Outlier Detection in High Dimensional Data
We propose an efficient sampling based outlier detection method for large high-dimensional data. Our method consists of two phases. In the first phase, we combine a "sampling...
Timothy de Vries, Sanjay Chawla, Pei Sun, Gia Vinh...
COMAD
2008
13 years 5 months ago
An Experiment with Distance Measures for Clustering
Distance measure plays an important role in clustering data points. Choosing the right distance measure for a given dataset is a non-trivial problem. In this paper, we study vario...
Ankita Vimal, Satyanarayana R. Valluri, Kamalakar ...
COMAD
2008
13 years 5 months ago
Information Integration Across Heterogeneous Sources: Where Do We Stand and How to Proceed?
Today, information integration has assumed a completely different, complex connotation than what it used to be. The advent of the Internet, the proliferation of information source...
Aditya Telang, Sharma Chakravarthy, Yan Huang
COMAD
2008
13 years 5 months ago
Querying for Information Integration: How to go from an Imprecise Intent to a Precise Query?
In this paper, we address the problem of query formulation in the context of multi-domain integration of heterogeneous data on the Web. We argue that effectively tackling this pro...
Aditya Telang, Sharma Chakravarthy, Chengkai Li
COMAD
2008
13 years 5 months ago
Concurrency Control in Distributed MRA Index Structure
Answering aggregate queries like sum, count, min, max over regions containing moving objects is often needed for virtual world applications, real-time monitoring systems, etc. Sin...
Neha Singh, S. Sudarshan
COMAD
2008
13 years 5 months ago
An Incremental Summary Generation System
Huge amount of information is present in the World Wide Web and a large amount is being added to it frequently. A query-specific summary of multiple documents is very helpful to t...
C. Ravindranath Chowdary, P. Sreenivasa Kumar
COMAD
2008
13 years 5 months ago
Silverfish: A Contextual Knowledge Extraction and Aggregation System for Academics
Repositories like arXiv1 and knowledge bases like CiteSeer2 are increasingly becoming central to academicians and researchers. However, current systems provide too little semantic...
Srinath Srinivasa, Aditya Ramana Rachakonda
COMAD
2008
13 years 5 months ago
The Orion Uncertain Data Management System
Orion is a state-of-the-art uncertain database management system that extends the relational model to include probabilistic uncertain data as first call data types. This demonstra...
Sarvjeet Singh, Chris Mayfield, Sagar Mittal, Suni...