Research Experience

Computational Sciences and Engineering Div., Oak Ridge National Laboratory
 Oak Ridge, TN

R & D Associate, 12/2006 – present

Project I: Peta-scale Streaming Data Mining and Visual Analytics

· Investigated knowledge representation and visual analytics techniques at peta-scale.

· Proposed and prototyped a novel density-based parallel data clustering/pattern recognition algorithm capable of handling data streams of Gbps. (Invention Disclosure Filed)

· Proposed and prototyped three distributed and incremental multi-document summarization algorithms. (Invention Disclosure in Preparation)

Project II: Cyber Security -- Data Integrity and Provenance for the Scientific Community

· Proposed new cyber security architecture to assist early identification of “zero-day attacks.

· Participated in drafting the “Scientific Approach to Cyber Security Research” document for DoE Office of Science.

· Co-organized the 2^nd DoE Cybersecurity Grassroots Community town hall meeting.

Project III: Pervasive Computing Technology for Seamless Information Delivery

· Designed and implemented a web service that allows mobile users to synchronize and share information.

· Co-designed and implemented the Knowledge Acquisition Ubiquitous Agent Infrastructure (KAUAI), a Java-based mobile agent framework.

· Co-designed and implemented a distributed target recognition application using KAUAI.

Project IV: Large-scale Agent-based Socio-Economic Modeling and Simulation

· Designed and implemented a multi-agent testbed using the Oak Ridge Mobile Agent Community (ORMAC) framework. The testbed is capable of instantiating and simulating interactions among 10⁸ social atoms in tractable time.

· Studied the effect of various social theories. The testbed reduces the time required to complete such simulations from months to hours. The outcome of the simulations provides insights and actionable intelligence to operation commanders.

 

Oak Ridge Associated Universities, Oak Ridge, TN

Postdoctoral Research Associate, 09/2005 – 11/2006

Computational Sciences and Engineering Div., Oak Ridge National Laboratory

Project: Machine Learning Algorithms for Dynamic Data Stream Analysis

· Proposed a semantic-based information retrieval solution to improve the quality of search results in the biomedical domain.

· Developed a data encoding scheme that enables efficient conversion of large volume, dynamic data streams in real-time.

· Designed a dynamic dimensionality reduction scheme for data stream mining. (Patent Filed)

 

The Global Information Systems Research Lab, Penn State University

Research Assistant, 2002-2005

Project I: Participated in the “Intelligent Information Processing in Mobile Data Access Environments” program funded by Office of Navel Research to develop advanced technology that supports mobile data access.

Project II: Participated in the “Pervasively Secure Infrastructures (PSI): Integrating Smart Sensing, Data Mining, Pervasive Networking, and Community Computing” program funded by NSF/ITR to design an integrated pervasive computing architecture.