Stephen Johnson

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The goal of the Gold project is to implement a set of tools t o interoperate with unstructured and semi-structured data and services. W e have selected the electronic mail domain ad the first scenario in which t o implement and demonstrate some of the tools. This paper describes the Gold Mailer, a system that provides w e r s with an integrated way t o send(More)
Emerging multimedia applications require database systems to provide support for new types of objects and to process queries that may have no parallel in traditional database applications. One such important class of queries are the proximity queries that aims to retrieve objects in the database that are related by a distance metric in a way that is(More)
This paper presents a research carried out at the BT IT Mobility Research Centre starting in August 2004 with the aim of uncovering the user experience in future scenarios of mobile and pervasive iTV, paying special attention to the new contextual usage of this media within the entertainment, work and government environments. It uses innovative(More)
We describe a corpus-based approach to creating a semantic lexicon using UMLS knowledge sources. We extracted 10,000 sentences from the eligibility criteria sections of clinical trial summaries contained in The UMLS Metathesaurus and SPECIALIST Lexical Tools were used to extract and normalize UMLS recognizable terms. When annotated with(More)
  • Steven P Treon, Morie A Gertz, Meletios Dimopoulos, Athanasios Anagnostopoulos, Joan Blade, Andrew R Branagan +13 others
  • 2006
Waldenström macroglobulinemia (WM) is a B-cell disorder characterized by the infiltration of lymphoplasmacytic cells into bone marrow and the presence of an IgM monoclonal gammopathy. As part of the Third International Workshop on WM, held October 7 to 10, 2004 in Paris, France, a consensus panel charged with providing treatment recommendations for WM(More)
There are many programs available for generating simulated whole-genome shotgun sequence reads. The data generated by many of these programs follow predefined models, which limits their use to the authors' original intentions. For example, many models assume that read lengths follow a uniform or normal distribution. Other programs generate models from(More)
This paper formalizes term rewriting systems (TRSs), called <i>scoped</i>, in which a rewrite rule can be nested within another rewrite rule. The right-hand side and/or the condition of a nested rule can refer to any variable in the left-hand side of a nesting rule. Nesting of rewrite rules is intended to define a lexical scope with static binding. Our work(More)
ht this work we describe a new app-oach using relative debugging to find differences in compmation between a serial program and a parallel version of tl at program. We use a combination of re-execution and backtracking in order to find the first difference in computation that may ultimately lead to an incorrect value that the um r has indicated. In our(More)