709 research outputs found

    Predicting college basketball match outcomes using machine learning techniques: some results and lessons learned

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    Most existing work on predicting NCAAB matches has been developed in a statistical context. Trusting the capabilities of ML techniques, particularly classification learners, to uncover the importance of features and learn their relationships, we evaluated a number of different paradigms on this task. In this paper, we summarize our work, pointing out that attributes seem to be more important than models, and that there seems to be an upper limit to predictive quality

    Link Prediction via Community Detection in Bipartite Multi-Layer Graphs

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    International audienceThe growing number of multi-relational networks pose new challenges concerning the development of methods for solving classical graph problems in a multi-layer framework, such as link prediction. In this work, we combine an existing bipartite local models method with approaches for link prediction from communities to address the link prediction problem in multi-layer graphs. To this end, we extend existing community detection-based link prediction measures to the bi-partite multi-layer network setting. We obtain a new generic framework for link prediction in bipartite multi-layer graphs, which can integrate any community detection approach, is capable of handling an arbitrary number of networks, rather inexpensive (depending on the community detection technique), and able to automatically tune its parameters. We test our framework using two of the most common community detection methods, the Louvain algorithm and spectral partitioning, which can be easily applied to bipartite multi-layer graphs. We evaluate our approach on benchmark data sets for solving a common drug-target interaction prediction task in computational drug design and demonstrate experimentally that our approach is competitive with the state-of-the-art

    Link Prediction via Community Detection in Bipartite Multi-Layer Graphs

    Get PDF
    International audienceThe growing number of multi-relational networks pose new challenges concerning the development of methods for solving classical graph problems in a multi-layer framework, such as link prediction. In this work, we combine an existing bipartite local models method with approaches for link prediction from communities to address the link prediction problem in multi-layer graphs. To this end, we extend existing community detection-based link prediction measures to the bipartite multi-layer network setting. We obtain a new generic framework for link prediction in bipartite multi-layer graphs, which can integrate any community detection approach, is capable of handling an arbitrary number of networks, rather inexpensive (depending on the community detection technique), and able to automatically tune its parameters. We test our framework using two of the most common community detection methods, the Louvain algorithm and spectral partitioning, which can be easily applied to bipartite multi-layer graphs. We evaluate our approach on benchmark data sets for solving a common drug-target interaction prediction task in computational drug design and demonstrate experimentally that our approach is competitive with the state-of-the-art

    Was muĂź Deutschland an Kolonien haben? : Deutschland und der Orient / von Albrecht Wirth. Mittelafrika als deutsche Kolonie / von Emil Zimmermann

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    Die Vorlage enth. insgesamt 2 Werke: Was muĂź Deutschland an Kolonien haben? : Deutschland und der Orient / Wirth, Albrecht. Mittelafrika als Deutsche Kolonie / Zimmermann, Emil

    Étude Expérimentale d'Extraction d'Information dans des Retranscriptions de Réunions

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    National audienceAn Experimental Approach For Information Extraction in Multi-Party Dialogue Discourse In this paper, we address the task of information extraction for meeting transcripts. The meeting documents are not usually well-structured and lacks of formatting and punctuation while the information are distributed over multiple sentences. We investigate on the use of numerical statistic or topic modeling methods on a real dataset containing multi-part dialogue texts. We evaluate our experiments with respect to the summaries provided in the dataset.Nous nous intéressons dans cet article à l'extraction de thèmes à partir de retranscriptions textuelles de réunions. Ce type de corpus est bruité, il manque de formatage, il est peu structuré avec plusieurs locuteurs qui interviennent et l'information y est souvent éparpillée. Nous présentons une étude expérimentale utilisant des méthodes fondées sur la mesure tf-idf et l'extraction de topics sur un corpus réel de référence (le corpus AMI) pour l'étude de réunions. Nous comparons nos résultats avec les résumés fournis par le corpus
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