Chris Manning

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We present a novel technique for speeding up the computation of PageRank, a hyperlink-based estimate of the “importance” of Web pages, based on the ideas presented in [7]. The original PageRank algorithm uses the Power Method to compute successive iterates that converge to the principal eigenvector of the Markov matrix representing the Web link graph. The(More)
Feature structures are related to frames in arti cial intelligence and to record structures in many programming languages. They are widely used as a data structure for natural language processing and their formalizations often include multiple inheritance and subtyping, which allow for terser descriptions and a logical control over non-determinism during(More)
Medicare's prospective payment system was introduced in 1983 to slow the growth of expenditures for hospital care, which from the bulk of Medicare costs. Instead of reimbursing hospitals for the actual costs of patient care, the system pays them at fixed rates for each admission. In this study, we estimated the savings to Medicare from the use of(More)
OBJECTIVE To compare the clinical effectiveness of collaborative care with usual care in the management of patients with moderate to severe depression. DESIGN Cluster randomised controlled trial. SETTING 51 primary care practices in three primary care districts in the United Kingdom. PARTICIPANTS 581 adults aged 18 years and older who met ICD-10(More)
This paper focuses on the problem of aspect-specific sentiment analysis. The goal here is to not only extract aspects of a product or service, but also to identify specific sentiments being expressed about them. Most existing algorithms address this problem by treating aspect extraction and sentiment analysis as separate phases or by enforcing explicit(More)
BACKGROUND Collaborative care is an effective treatment for the management of depression but evidence on its cost-effectiveness in the UK is lacking. AIMS To assess the cost-effectiveness of collaborative care in a UK primary care setting. METHODS An economic evaluation alongside a multi-centre cluster randomised controlled trial comparing collaborative(More)
BACKGROUND Comprising of both organisational and patient level components, collaborative care is a potentially powerful intervention for improving depression treatment in UK primary Care. However, as previous models have been developed and evaluated in the United States, it is necessary to establish the effect of collaborative care in the UK in order to(More)
This paper provides an LFG account of the Bulgarian direct object clitic's interaction with information structure (i.e. topic-focus structure) and word order. We show that the direct object clitic has at least two functions (it is both a topical object agreement marker and default pronoun) and then demonstrate how our account correctly predicts in which(More)