Eduardo Mena | University of Zaragoza (original) (raw)

Papers by Eduardo Mena

Research paper thumbnail of Infoboxer: Using Statistical and Semantic Knowledge to Help Create Wikipedia Infoboxes

Infoboxer uses statistical and semantic knowledge from linked data sources to ease the process of... more Infoboxer uses statistical and semantic knowledge from linked data sources to ease the process of creating Wikipedia infoboxes. It creates dynamic and semantic templates by suggesting attributes common for similar articles and controlling the expected values semantically.

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Research paper thumbnail of A Semantic Context-Aware Privacy Model for FaceBlock

Wearable computing devices like Google Glass are at the forefront of technological evolution in s... more Wearable computing devices like Google Glass are at the forefront of technological evolution in smart devices. The ubiquitous and oblivious nature of photography using these devices has made people concerned about their privacy in private and public settings. The Face-Block (http://face-block.me/) project protects the privacy of people around Glass users by making pictures taken by the latter, Privacy-Aware. Through sharing of privacy policies, users can choose whether or not to be included in pictures. However, the current privacy model of FaceBlock only permits simple constraints such as allow versus disallow pictures. In this paper, we present an extended context-aware privacy model represented using OWL ontologies and SWRL rules. We also describe use cases of how this model can help FaceBlock to generate Privacy-Aware Pictures depending on context and privacy needs of the user.

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Research paper thumbnail of Android Went Semantic: Time for Evaluation

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Research paper thumbnail of Vanet-X: A Videogame to Evaluate Information Management in Vehicular Networks

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Research paper thumbnail of DEMO - MultiCAMBA: A system to assist in the broadcasting of sport events

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Research paper thumbnail of Location-aware system based on a dynamic 3D model to help in live broadcasting of sport events

Proceedings of the 19th ACM international conference on Multimedia - MM '11, 2011

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Research paper thumbnail of Real-time selection of video streams for live TV broadcasting based on Query-by-Example using a 3D model

Multimedia Tools and Applications, 2013

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Research paper thumbnail of MultiCAMBA: a system for selecting camera views in live broadcasting of sport events using a dynamic 3D model

Multimedia Tools and Applications, 2013

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Research paper thumbnail of An approach to process continuous location-dependent queries on moving objects with support for location granules

Journal of Systems and Software, 2011

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Research paper thumbnail of An approach to de ne an Optimal Cache for a Multidatabase System

... Goñi A. , Illarramendi A. , Mena E. , Blanco JM ... In par-ticular, query processing in distr... more ... Goñi A. , Illarramendi A. , Mena E. , Blanco JM ... In par-ticular, query processing in distributed database systems has been studied in detail ([CP84, OV91]) but the solutions proposed are not the same as the solutions needed for multidatabase systems as several authors claim ...

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Research paper thumbnail of HTTP://SIUL02. Si. Ehu. Es/~ Jirgbdat

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Research paper thumbnail of Database Technologies for Handling-XML-Information on the Web (DataX)-Pervasive Information Management (PIM)-A Mobile Agents Based Architecture for the Distributed Processing of Continuous

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Research paper thumbnail of SHERLOCK: Semantic management of Location-Based Services in wireless environments

Pervasive and Mobile Computing, 2014

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Research paper thumbnail of BibShare: An Interoperable System to Access and Maintain Bibliographic References

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Research paper thumbnail of QueryGen: Semantic interpretation of keyword queries over heterogeneous information systems

Information Sciences, 2015

In the last years, users have become used to keyword-based search interfaces due to their ease of... more In the last years, users have become used to keyword-based search interfaces due to their ease of use. By matching input keywords against huge amounts of textual information and labeled multimedia files, current search engines satisfy most of users’ information needs. However, the principal problem of this kind of search is the semantic gap between the input and the real user need, as keywords are a simplification of the query intended by the user. Moreover, different users could use the same set of keywords to search different information; even the same user could do it at different times. The search system, before accessing any data, should discover first the intended semantics behind the user keywords, in order to return only data fulfilling such semantics. The use of formal query languages is not an option for non-expert users, so a semantic keyword-based search based on semantic interpretation of keyword queries could be the solution, i.e., a search that starts discovering the semantics intended for the input user keywords, and then only data relevant to that semantics are returned as answer. In this paper we present a system that performs semantic keyword interpretation on different data repositories. Our system (1) discovers the meaning of the input keywords by consulting a generic pool of ontologies and applying different disambiguation techniques, (2) once the meaning of each keyword has been established, the system combines them in a formal query that captures the semantics intended by the user, considering different formal query languages and possibilities that could arise, but avoiding inconsistent and semantically equivalent queries, and, finally, (3) after the user has validated the generated query that best fits her/his intended meaning, the system routes the query to the appropriate data repositories that will retrieve data according to the semantics of such a query. Experimental results show the semantic interpretation capabilities and the feasibility of our approach.

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Research paper thumbnail of Uso de agentes m�viles para la b�squeda y recuperaci�n de informaci�n bibliogr�fica

Jbidi, 2001

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Research paper thumbnail of Demo (FaceBlock: privacy-aware pictures for google glass)

Proceedings of the 12th Annual International Conference, Jun 2, 2014

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Research paper thumbnail of Semantic Query Optimization Caching for a Multidatabase System

ABSTRACT

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Research paper thumbnail of MAGIC' An Interface for Generating Mapping

Nowadays, it is increasing the interest of working with systems designed under the object-based p... more Nowadays, it is increasing the interest of working with systems designed under the object-based paradigm. However, most organizations possess their data stored in relational or pre-relational databases, data that they need for the every day work. In order to permit them to continue dealing with the existing databases while taking advantage of the features provided by the new systems, different tools are being designed. In this paper we present an interface that allows generating mapping information between relational databases and schemata defined using systems designed under the objectbased paradigm. This interface provides a user friendly environment and syntactic and semantic checking to help the user in the connexion process.

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Research paper thumbnail of The OWL Reasoner Evaluation Goes Mobile

The advantage of using semantic reasoners based on Description Logics (DL) for the development of... more The advantage of using semantic reasoners based on Description Logics (DL) for the development of intelligent systems is doubtless: They make easy the optimal management of knowledge (expressed as ontologies). Reasoning is a complex and computationally expensive task traditionally performed on powerful server and desktop computers. However, we should not discard reasoners from being used on mobile devices such as smartphones or tablets, as the increasing number of applications run on wireless environments demands that many intelligent tasks should be performed on mobile devices rather than on desktop or server computers. Although less powerful that their fixed counterparts, mobile devices are becoming more and more capable of running complex tasks, such as DL reasoning. In this paper we introduce the framework of a competition for reasoners on mobile devices, based on the OWL Reasoner Evaluation, with the main goal of promoting the development of reasoners adapted to mobile environm...

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Research paper thumbnail of Infoboxer: Using Statistical and Semantic Knowledge to Help Create Wikipedia Infoboxes

Infoboxer uses statistical and semantic knowledge from linked data sources to ease the process of... more Infoboxer uses statistical and semantic knowledge from linked data sources to ease the process of creating Wikipedia infoboxes. It creates dynamic and semantic templates by suggesting attributes common for similar articles and controlling the expected values semantically.

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Research paper thumbnail of A Semantic Context-Aware Privacy Model for FaceBlock

Wearable computing devices like Google Glass are at the forefront of technological evolution in s... more Wearable computing devices like Google Glass are at the forefront of technological evolution in smart devices. The ubiquitous and oblivious nature of photography using these devices has made people concerned about their privacy in private and public settings. The Face-Block (http://face-block.me/) project protects the privacy of people around Glass users by making pictures taken by the latter, Privacy-Aware. Through sharing of privacy policies, users can choose whether or not to be included in pictures. However, the current privacy model of FaceBlock only permits simple constraints such as allow versus disallow pictures. In this paper, we present an extended context-aware privacy model represented using OWL ontologies and SWRL rules. We also describe use cases of how this model can help FaceBlock to generate Privacy-Aware Pictures depending on context and privacy needs of the user.

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Research paper thumbnail of Android Went Semantic: Time for Evaluation

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Research paper thumbnail of Vanet-X: A Videogame to Evaluate Information Management in Vehicular Networks

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Research paper thumbnail of DEMO - MultiCAMBA: A system to assist in the broadcasting of sport events

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Research paper thumbnail of Location-aware system based on a dynamic 3D model to help in live broadcasting of sport events

Proceedings of the 19th ACM international conference on Multimedia - MM '11, 2011

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Research paper thumbnail of Real-time selection of video streams for live TV broadcasting based on Query-by-Example using a 3D model

Multimedia Tools and Applications, 2013

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Research paper thumbnail of MultiCAMBA: a system for selecting camera views in live broadcasting of sport events using a dynamic 3D model

Multimedia Tools and Applications, 2013

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Research paper thumbnail of An approach to process continuous location-dependent queries on moving objects with support for location granules

Journal of Systems and Software, 2011

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Research paper thumbnail of An approach to de ne an Optimal Cache for a Multidatabase System

... Goñi A. , Illarramendi A. , Mena E. , Blanco JM ... In par-ticular, query processing in distr... more ... Goñi A. , Illarramendi A. , Mena E. , Blanco JM ... In par-ticular, query processing in distributed database systems has been studied in detail ([CP84, OV91]) but the solutions proposed are not the same as the solutions needed for multidatabase systems as several authors claim ...

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Research paper thumbnail of HTTP://SIUL02. Si. Ehu. Es/~ Jirgbdat

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Research paper thumbnail of Database Technologies for Handling-XML-Information on the Web (DataX)-Pervasive Information Management (PIM)-A Mobile Agents Based Architecture for the Distributed Processing of Continuous

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Research paper thumbnail of SHERLOCK: Semantic management of Location-Based Services in wireless environments

Pervasive and Mobile Computing, 2014

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Research paper thumbnail of BibShare: An Interoperable System to Access and Maintain Bibliographic References

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Research paper thumbnail of QueryGen: Semantic interpretation of keyword queries over heterogeneous information systems

Information Sciences, 2015

In the last years, users have become used to keyword-based search interfaces due to their ease of... more In the last years, users have become used to keyword-based search interfaces due to their ease of use. By matching input keywords against huge amounts of textual information and labeled multimedia files, current search engines satisfy most of users’ information needs. However, the principal problem of this kind of search is the semantic gap between the input and the real user need, as keywords are a simplification of the query intended by the user. Moreover, different users could use the same set of keywords to search different information; even the same user could do it at different times. The search system, before accessing any data, should discover first the intended semantics behind the user keywords, in order to return only data fulfilling such semantics. The use of formal query languages is not an option for non-expert users, so a semantic keyword-based search based on semantic interpretation of keyword queries could be the solution, i.e., a search that starts discovering the semantics intended for the input user keywords, and then only data relevant to that semantics are returned as answer. In this paper we present a system that performs semantic keyword interpretation on different data repositories. Our system (1) discovers the meaning of the input keywords by consulting a generic pool of ontologies and applying different disambiguation techniques, (2) once the meaning of each keyword has been established, the system combines them in a formal query that captures the semantics intended by the user, considering different formal query languages and possibilities that could arise, but avoiding inconsistent and semantically equivalent queries, and, finally, (3) after the user has validated the generated query that best fits her/his intended meaning, the system routes the query to the appropriate data repositories that will retrieve data according to the semantics of such a query. Experimental results show the semantic interpretation capabilities and the feasibility of our approach.

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Research paper thumbnail of Uso de agentes m�viles para la b�squeda y recuperaci�n de informaci�n bibliogr�fica

Jbidi, 2001

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Research paper thumbnail of Demo (FaceBlock: privacy-aware pictures for google glass)

Proceedings of the 12th Annual International Conference, Jun 2, 2014

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Research paper thumbnail of Semantic Query Optimization Caching for a Multidatabase System

ABSTRACT

Bookmarks Related papers MentionsView impact

Research paper thumbnail of MAGIC' An Interface for Generating Mapping

Nowadays, it is increasing the interest of working with systems designed under the object-based p... more Nowadays, it is increasing the interest of working with systems designed under the object-based paradigm. However, most organizations possess their data stored in relational or pre-relational databases, data that they need for the every day work. In order to permit them to continue dealing with the existing databases while taking advantage of the features provided by the new systems, different tools are being designed. In this paper we present an interface that allows generating mapping information between relational databases and schemata defined using systems designed under the objectbased paradigm. This interface provides a user friendly environment and syntactic and semantic checking to help the user in the connexion process.

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Research paper thumbnail of The OWL Reasoner Evaluation Goes Mobile

The advantage of using semantic reasoners based on Description Logics (DL) for the development of... more The advantage of using semantic reasoners based on Description Logics (DL) for the development of intelligent systems is doubtless: They make easy the optimal management of knowledge (expressed as ontologies). Reasoning is a complex and computationally expensive task traditionally performed on powerful server and desktop computers. However, we should not discard reasoners from being used on mobile devices such as smartphones or tablets, as the increasing number of applications run on wireless environments demands that many intelligent tasks should be performed on mobile devices rather than on desktop or server computers. Although less powerful that their fixed counterparts, mobile devices are becoming more and more capable of running complex tasks, such as DL reasoning. In this paper we introduce the framework of a competition for reasoners on mobile devices, based on the OWL Reasoner Evaluation, with the main goal of promoting the development of reasoners adapted to mobile environm...

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