Learn More
Query optimization is a computationally intensive process, especially for complex queries. We present here a tool, called PLASTIC, that can be used by query optimizers to amortize the optimization cost. Our scheme groups similar queries into clusters and uses the optimizer-generated plan for the cluster representative to execute all future queries assigned(More)
Interlingua and transfer based approaches to machine translation have long been in use in competing and complimentary ways. The former proves economical in situations where translation among multiple languages is involved, while the latter is used for pair specific translation tasks. The additional attraction of an interlingua is that it can be used as a(More)
Naive Bayes classifier has long been used for text categorization tasks. Its sibling from the unsupervised world, the probabilistic mixture of multinomial models, has likewise been successfully applied to text clustering problems. Despite the strong independence assumptions that these models make, their attractiveness come from low computational cost,(More)
The Web has emerged as a huge information repository that can be used for various knowledge based applications, an important one being Question Answering (QA). The paper discusses the issues involved in using web as a knowledge base for question answering involving simple factual questions. It also proposes some simple but effective methods to adapt(More)
  • 1