Browsing by Author "Koushik, Prabhakar M."

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    Integrated Access to a Large Medical Literature Database
    Fox, Edward A.; Koushik, Prabhakar M.; Chen, Qi-Fan; France, Robert K. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1991)
    Project INCARD (INtegrated CARdiology Database) has adapted the CODER (COmposite Document Expert/effective/extended Retrieval) system and LEND (Large External Network object oriented Database) to provide integrated access to a large collection of bibliographic citations, a full text document in cardiology, and a large thesaurus of medical terms. CODER is a distributed expert-based information system that incorporates techniques from artificial intelligence, information retrieval, and human-computer interaction to support effective access to information and knowledge bases. LEND is an object-oriented database which incorporates techniques from information retrieval and database systems to support complex objects, hypertext/hypermedia and semantic network operations efficiently with very large sets of data. LEND stores the CED lexicon, MeSH thesaurus, MEDLARS bibliographics records on cardiology, and the syllabus for the topic Abnormal Human Biology (Cardiology Section) taught at Columbia University. Together, CODER/LEND allow efficient and flexible access to all of this information while supporting rapid "intelligent" searching and hypertext-style browsing by both novice and expert users. This report gives statistics on the collections, illustrations of the system's use, and details on the overall architecture and design for Project INCARD.
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    Interactive Digital Video Authoring and Prototyping
    Fox, Edward A.; Hix, Deborah; Schwartz, Edward E.; Siochi, Antonio C.; Koushik, Prabhakar M.; Inman, Donald (Department of Computer Science, Virginia Polytechnic Institute & State University, 1990)
    This paper reports on a joint research project between Virginia Tech and the NCR Corporation on Digital Video Interaction (DVI) technology. In particular, it discusses:
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    Low Error Path Planning for a Synchro-Drive Mobile Robot
    Miller, David P.; Koushik, Prabhakar M. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1986)
    A path-planning system is presented which, given any points, calculates a low-error path for a synchro-drive robot. The path reduces dead-reckoning errors by using gentle, constant curvature turns for switching directions of the robot's travel---yet direct and minimal length travel are maintained. The system has been implemented and tested with a Vectrobot mobile platform.