102 research outputs found

    Measuring success of open source projects using web search engines

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    What makes an open source project successful? In this paper we show that the traditional factors of success of open source projects, such as number of downloads, deployments or commits are sometimes inconvenient or even insufficient. We then correlate success of an open source project with its popularity on the Web. We show several ideas of how such popularity could be measured using Web search engines and provide experimental results from quantitative analysis of the proposed measures on representative large samples of open source projects from SourceForge

    Exploring Linguistic Features for Web Spam Detection: A Preliminary Study

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    We study the usability of linguistic features in theWeb spam classification task. The features were computed on two Web spam corpora: Webspam-Uk2006 and Webspam-Uk2007, we make them publicly available for other researchers. Preliminary analysis seems to indicate that certain linguistic features may be useful for the spam-detection task when combined with features studied elsewhere.JRC.G.2-Support to external securit

    Environments to support collaborative software engineering

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    With increasing globalisation of software production, widespread use of software components, and the need to maintain software systems over long periods of time, there has been a recognition that better support for collaborative working is needed by software engineers. In this paper, two approaches to developing improved system support for collaborative software engineering are described: GENESIS and OPHELIA. As both projects are moving towards industrial trials and eventual publicreleases of their systems, this exercise of comparing and contrasting our approaches has provided the basis for future collaboration between our projects particularly in carrying out comparative studies of our approaches in practical use

    Environments to Support Collaborative Software Engineering

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    With increasing globalisation of software production, widespread use of software components, and the need to maintain software systems over long periods of time, there has been a recognition that better support for collaborative working is needed by software engineers. In this paper, two approaches to developing improved system support for collaborative software engineering are described: GENESIS and OPHELIA. As both project are moving towards industrial trials and eventual public releases of their systems, this exercise of comparing and contrasting our approaches has provided the basis for future collaboration between our projects particularly in carrying out comparative studies of our approaches in practical use

    Stem cells in normal breast development and breast cancer

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    The main focus of this review is the role of mammary stem cells in normal breast development and carcinogenesis. We have developed a new in vitro culture system that permits, for the first time, the propagation of mammary stem and progenitor cells in an undifferentiated state, which should facilitate the elucidation of pathways that regulate normal mammary stem-cell self-renewal and differentiation. Furthermore, we propose a model in which transformation of stem cells, or early progenitor cells, results in carcinogenesis. A key event in this process is the deregulation of normal self-renewal in these cells. Transformed mammary stem or progenitor cells undergo aberrant differentiation processes that result in generation of the phenotypic heterogeneity found in human and rodent breast cancers. This phenotypic diversity is driven by a small subset of mammary tumour stem cells. We will discuss the important implications of this mammary tumour stem-cell model.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/72182/1/j.1365-2184.36.s.1.6.x.pd

    A case-study in the clinical epidemiology of psoriatic arthritis: multistate models and causal arguments.

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    In psoriatic arthritis, permanent joint damage characterizes disease progression and represents a major debilitating aspect of the disease. Understanding the process of joint damage will assist in the treatment and disease management of patients. Multistate models provide a means to examine patterns of disease, such as symmetric joint damage. Additionally, the link between damage and the dynamic course of disease activity (represented by joint swelling and stress pain) at both the individual joint level and otherwise can be represented within a correlated multistate model framework. Correlation is reflected through the use of random effects for progressive models and robust variance estimation for non-progressive models. Such analyses, undertaken with data from a large psoriatic arthritis cohort, are discussed and the extent to which they permit causal reasoning is considered. For this, emphasis is given to the use of the Bradford Hill criteria for causation in observational studies and the concept of local (in)dependence to capture the dynamic nature of the relationships

    The management of desmoid tumours: A joint global consensus-based guideline approach for adult and paediatric patients

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    Abstract Desmoid tumor (DT; other synonymously used terms: Desmoid-type fibromatosis, aggressive fibromatosis) is a rare and locally aggressive monoclonal, fibroblastic proliferation characterised by a variable and often unpredictable clinical course. Previously surgery was the standard primary treatment modality; however, in recent years a paradigm shift towards a more conservative management has been introduced and an effort to harmonise the strategy amongst clinicians has been made. We present herein an evidence-based, joint global consensus guideline approach to the management of this disease focussing on: molecular genetics, indications for an active treatment, and available systemic therapeutic options. This paper follows a one-day consensus meeting held in Milan, Italy, in June 2018 under the auspices of the European Reference Network for rare solid adult cancers, EURACAN, the European Organisation for Research and Treatment of Cancer (EORTC) Soft Tissue and Bone Sarcoma Group (STBSG) as well as Sarcoma Patients EuroNet (SPAEN) and The Desmoid tumour Research Foundation (DTRF). The meeting brought together over 50 adult and pediatric sarcoma experts from different disciplines, patients and patient advocates from Europe, North America and Japan

    Multi-Agent Systems for the Simulation of Land-Use and Land-Cover Change: A Review

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    A survey of freely available polish stemmers and evaluation of their applicability in information retrieval,” 2005, submitted to Language and Technology Conference

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    Stemmers are computer programs for transforming all inflected forms of a word into a token representing its broader meaning. There are many openly available stemmers for English and other Indo-European languages, but until very recently stemmers for Polish were mostly commercial. In this paper we provide a survey of free and open source stemmers for Polish that came into view in the period of the last two years. We additionally present results from an experiment comparing these stemmers with two fully-fledged morphological analyzers. 1
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