Sachindra Joshi

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This paper introduces <i>generalised disjunctive association rules</i> such as "People who buy bread also buy butter jam", and "People who buy <b>either</b> raincoats <b>or</b> umbrellas also buy flashlights". A <i>generalised disjunctive association rule</i> allows the disjunction of conjuncts, "People who buy jackets also buy bow ties <b>or</b> neckties(More)
Structural information (such as layout and look-and-feel) has been extensively used in the literatuce for extraction of interesting or relevant data, efficient storage, and query optimization. Traditionally, tree models (such as DOM trees) have been used to represent structural information, especially in the case of HTML and XML documents. However,(More)
Enterprises are increasingly using social media forums to engage with their customer onlinea phenomenon known as Social Customer Relation Management (Social CRM). In this context, it is important for an enterprise to identify “influential authors” and engage with them on a priority basis. We present a study towards finding influential authors on Twitter(More)
Advances in studies of microRNA (miRNA) expression and function in smooth muscles illustrate important effects of small noncoding RNAs on cell proliferation, hypertrophy and differentiation. An emerging theme in miRNA research in a variety of cell types including smooth muscles is that miRNAs regulate protein expression networks to fine tune phenotype. Some(More)
Estrogen receptor (ER) binds to a spectrum of functional estrogen response elements (ERE) within the human genome, including ERE half-sites (HERE), inverted and direct repeats. This has been confounding, because ER has been reported to bind weakly, if at all, to these sites in vitro. We show that ER binds strongly to these nonconventional EREs, and the(More)
20-Hydroxyeicosatetraeonic acid (20-HETE) produced by cytochrome P-450 monooxygenases in NADPH-dependent manner is proinflammatory, and it contributes to the pathogenesis of systemic and pulmonary hypertension. In this study, we tested the hypothesis that inhibition of glucose-6-phosphate dehydrogenase (G6PD), a major source of NADPH in the cell, prevents(More)
This paper proposes an algorithm to hierarchically cluster documents. Each cluster is actually a cluster of documents and an associated cluster of words, thus a document-word co-cluster. Note that, the vector model for documents creates the document-word matrix, of which every co-cluster is a submatrix. One would intuitively expect a submatrix made up of(More)
Traditional works in sentiment analysis and aspect rating prediction do not take author preferences and writing style into account during rating prediction of reviews. In this work, we introduce Joint Author Sentiment Topic Model (JAST), a generative process of writing a review by an author. Authors have different topic preferences, ‘emotional’ attachment(More)
Lack of supervision in clustering algorithms often leads to clusters that are not useful or interesting to human reviewers. We investigate if supervision can be automatically transferred to a clustering task in a target domain, by providing a relevant supervised partitioning of a dataset from a different source domain. The target clustering is made more(More)
An important issue with the Web is verification of the accuracy, currency and authenticity of the information associated with Web sites. One way to address this problem is to identify the "source" or "sponsor" of the Web site. However, source identification is non-trivial because the source of a Web site cannot always be determined by the URL or content of(More)