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Healthcare practitioners are increasingly using search functionality embedded in Electronic Medical Record (EMR) software to search for relevant evidence summaries at point of care. We introduce a learning to rank approach that exploits information carried in EMR data and UpToDate user accounts to (significantly) improve ranking results, compared to a comparable model that does not exploit such features.
Today, the crisis has worsened the panorama for Universities, placing new constraints that require being more sustainable economically. In addition, universities will also have to improve their research and teaching in order to obtain more research funds and attract more students. In this panorama, analytics can be a very useful tool since it allows academics (and university managers) to get a more...
Software bug localization aiming to determine the locations needed to be fixed for a bug report is one of the most tedious and effort consuming activities in software debugging. Learning-to-rank (LR) is the state-of-the-art approach proposed by Ye et al. to recommending relevant files for bug localization. Ye et al.'s experimental results show that the LR approach significantly outperforms previous...
The World Wide Web easily becomes the largest repository of natural language text data. We are particularly interested in state-of-the-art methods in exploiting geospatial information the web. The survey is done in the context of its extraction methods, retrieval, visualization, and further possible mining or knowledge discovery scenarios in order to produce thematic maps automatically from the web...
Online shopping has developed to a stage where catalogs have become very large and diverse. Thus, it is a challenge to present relevant items to potential customers within a very few interactions. This is even more so when users have no defined shopping objectives but operate in an opportunistic mindset. This problem is often tackled by recommender systems. However, these systems rely on consistent...
Software Product Line has proven to be an effective methodology for developing a diversity of software products at lower costs, in shorter time, and with higher quality. However, the adoption and maintenance of traceability in the context of product lines is considered a difficult task, due to the large number and heterogeneity of assets developed during product line engineering. Furthermore, the...
This paper introduces scaled Bregman distances of probability distributions which admit nonuniform contributions of observed events. They are introduced in a general form covering not only the distances of discrete and continuous stochastic observations, but also the distances of random processes and signals. It is shown that the scaled Bregman distances extend not only the classical ones studied...
Complex service-oriented systems typically span interactions between people and services. Compositions in such systems demand for flexible interaction models. In this work we introduce an approach for discovering experts based on their dynamically changing skills and interests. We discuss human provided services and an approach for managing user preferences and network structures. Experts offer their...
Poorly-chosen identifiers have been reported in the literature as misleading and increasing the program comprehension effort. Identifiers are composed of terms, which can be dictionary words, acronyms, contractions, or simple strings. We conjecture that the use of identical terms in different contexts may increase the risk of faults. We investigate our conjecture using a measure combining term entropy...
Toponym Disambiguation (TD) in Geographic Information Retrieval (GIR) systems is a crucial technique, which makes a direct impact on the quality of subsequent assignment of geographic focus to a document and that of establishment of spatial index as well as the effectiveness of the entire retrieval model as a whole. We explore the mechanism for human beings' dealing with the problem of TD. Human's...
In this paper we describe our work on generating in-domain corpus using auto-induced semantic classes and structures for language model adaptation in a voice search dialogue system. We proposed a novel similarity measure based on co-occurrence probabilities for inducing semantic classes. Clustering with the new similarity measure outperformed that with the widely used distance measure based on Kullback-Leibler...
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