TRONCY , Raphaël

We present an extension of QAKiS, a system for Question Answering over DBpedia language specific chapters, that allows to complement textual answers with multimedia content from the linked data, to provide a richer and more complete answer to the user. For the demo,English, French and German DBpedia chapters are the RDF data sets to be queried...

Entities play a key role in knowledge bases in general and in the Web of Data in particular. Entities are generally described with a lot of properties, this is the case for DBpedia. It is, however, difficult to assess which ones are more "important" than others for particular tasks such as visualizing the key facts of an entity or filtering out...

Current evaluation methods of exploratory search systems are still incomplete as they are not fully based on a suitable model of the exploratory search process: as such they cannot be used to determine if they effectively support exploratory search behaviours and tasks. Aiming to elaborate evaluation methods based on an appropriate model of...

A shortcoming of current evaluation methods of exploratory search engines is that they cannot be used to determine whether users' behaviours and exploratory search tasks are usefully supported. One main reason is that these methods rely on a loosely defined model of the exploratory search process. The aim of this paper is to propose a new...

Exploratory search has an unclear and open-ended definition. The complexity of the task and the difficulty of defining this activity are reflected in the limits of existing evaluation methods for exploratory search systems. In order to improve them, we intend to design an evaluation method based on a user-centered model of exploratory search....

With today's public data sets containing billions of data items, more and more companies are looking to integrate external data with their traditional enterprise data to improve business intelligence analysis. These distributed data sources however exhibit heterogeneous data formats and terminologies and may contain noisy data. In this paper,...

With today's public data sets containing billions of data items, more and more companies are looking to integrate external data with their traditional enterprise data to improve business intelligence analysis. These distributed data sources however exhibit heterogeneous data formats and terminologies and may contain noisy data. In this paper,...

As many cities around the world provide access to raw public data along the Open Data movement, many questions arise concerning the accessibility of these data. Various data formats, duplicate identifiers, heterogeneous metadata schema descriptions, and diverse means to access or query the data exist. These factors make it difficult for...