Rajiv Srivastava

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Named entities are important content-carrying units within documents. Consequently named entity recognition (NER) is an important part of information extraction. One fast and accurate approach to NER uses a <i>list</i> or <i>gazette</i> consisting of known instances. Gazette creation problem considers how to automatically create a comprehensive gazette from(More)
The effectiveness of recommendation systems is improving with the incorporation of richer context. The frequentist recommendation methods such as Markov models are not efficient in simultaneous use of context and preference sequences over items due to state space explosion. On the other end, abstractionist models such as Matrix Factorization where each item(More)
This paper describes a compound cost/benefit/risk (CBR) analysis methodology and its application in a Computing System for assessing the security threats, vulnerabilities and suggests corrective actions. These factors are analyzed, evaluated and presented in a practical meaningful perspective. The Decision Making Factor which justifies the selection of(More)
Images plays a very important role in human being's life. They are very useful in all the problems we came across day by day. Such as, satellite images are used for traffic analysis or in developed cities traffic analysis is also done through the CCTV cameras. But images which are captured under bad weather conditions suffer low contrast so as their quality(More)