Browsing by Author "Teniente López, Ernest"
Now showing items 1-20 of 99
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3D mapping for urban service robots
(IEEE Press. Institute of Electrical and Electronics Engineers, 2009-10-11)
Conference report
Open AccessWe present an approach to the problem of 3D map building in urban settings for service robots, using threedimensional laser range scans as the main data input. Our system is based on the probabilistic alignment of 3D point ... -
A common framework for classifying and specifying deductive database updating problems
(Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics, 1994)
Conference report
Open AccessSeveral problems may arise when updating a deductive database. Up to now, the general approach of the research related to deductive database updating problems has been to provide specific methods for solving particular ... -
A platform independent model for the electronic marketplace domain
(2005-04)
Research report
Open AccessAn electronic marketplace supports the interaction among different users to exchange information about products to sell and buy. Significance of electronic marketplaces is given by the huge amount of web sites that are ... -
A Review of integrity constraint maintenance and view updating techniques
(2003-03)
Research report
Open AccessTwo interrelated problems may arise when updating a database. On one hand, when an update is applied to the database, integrity constraints may become violated. In such case, the integrity constraint maintenance approach ... -
A schema-only approach to validate XML schema mappings
(2010-03-19)
Research report
Open AccessSince the emergence of the Web, the ability to map XML data between different data sources has become crucial. Defining a mapping is however not a fully automatic process. The designer needs to figure out whether the mapping ... -
A semantic model to fight social exclusion
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference lecture
Open AccessThis work presents a semantic model meant to help with the identification and prediction of individuals at risk of social exclusion. The model is based on the self-sufficiency matrix, a tool that evaluates a person's ... -
Actualització de vistes en bases de dades relacionals: estat de la qüestió
(Asociación de Técnicos de Informática, 1993-05)
Article
Open Access -
Actualització de vistes en bases de dades relacionals: l'estat de la qüestió
(1992-01)
Research report
Open AccessAquest article és una síntesi dels mètodes proposats fins el moment actual per a resoldre el problema de l'actualització de vistes en bases de dades relacionals. Es distingeixen bàsicament dos enfocaments per a resoldre ... -
Adapting integrity checking techniques for concurrent operation executions
(Springer, 2019)
Conference report
Open AccessOne challenge for achieving executable models is preserving the integrity of the data. That is, given a structural model describing the constraints that the data should satisfy, and a behavioral model describing the ... -
Addressing efficiency issues during the process of integrity maintenance (extended version)
(1999-07)
Research report
Open AccessAn important problem that arises when updating a deductive database is that of integrity maintenance. That is, given a consistent database and an update request, to obtain all possible updates of base facts such that ... -
An analysis pattern for electronic marketplaces
(2004-02)
Research report
Open AccessAn electronic marketplace supports the interaction among different users to exchange information about products to sell and buy. Significance of electronic marketplaces is given by the huge amount of web sites that are ... -
An ontology-based framework for describing discoverable data services
(Springer, 2018)
Conference report
Open AccessData-services are applications in charge of retrieving certain data when they are called. They are found in different communities such as the Internet Of Things, Cloud Computing, Big Data, etc. So, there is a real need to ... -
Analysing the process of enforcing integrity constraints
(1996-06)
Research report
Open AccessTwo different approaches have been traditionally considered for dealing with the process of integrity constraints enforcement: integrity constraints checking and integrity constraints maintenance. However, while previous ... -
Artifact-centric business process models in UML
(2012)
Conference report
Open AccessBusiness process modeling using an artifact-centric approach has raised a signi cant interest over the last few years. This approach is usually stated in terms of the BALSA framework which de nes the four \dimensions" of ... -
AuRUS: Automated Reasoning on UML/OCL Schemas
(Springer Verlag, 2010)
Conference lecture
Restricted access - publisher's policyTo ensure the quality of an information system, the conceptual schema that represents its domain must be semantically correct. We present a prototype to automatically check whether a UML schema with OCL constraints is right ... -
AuRUS: explaining the validation of UML/OCL conceptual schemas
(2015-05-01)
Article
Open AccessThe validation and the verification of conceptual schemas have attracted a lot of interest during the last years, and several tools have been developed to automate this process as much as possible. This is achieved, in ... -
Automatic business process model extension to repair constraint violations
(Springer, 2019)
Conference report
Open AccessConsider an artifact-centric business process model, containing both a data model and a process model. When executing the process, it may happen that some of the data constraints from the data model are violated. Bearing ... -
Comprobación eficiente de restricciones de integridad en OCL
(2007)
Conference report
Open AccessEl proceso de comprobación de restricciones tiene como objetivo asegurar que el estado del sistema de información es consistente con las restricciones de integridad. La comprobación tiene que repetirse cada vez que el ... -
Comprovació de restriccions d'integritat i modificació de vistes en bases de dades deductives
(1991-01)
Research report
Open AccessAquest treball descriu els conceptes bàsics de les bases de dades deductives i estudia algun dels problemes que aquestes tenen (comprovació de les restriccions d'integritat i modificació de vistes). Abans d'estudiar algunes ... -
Computing explanations for unlively queries in databases
(2007-06)
Research report
Open AccessA query is lively in a database schema if it returns a non-empty answer for some database satisfying the schema. Debugging a database schema requires not only determining queries (as well as views or tables) that are not ...
