Exploració per autor "Queralt Calafat, Anna"
Ara es mostren els items 7-26 de 35
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CAPre: Code-Analysis based Prefetching for Persistent object stores
Touma, Rizkallah; Queralt Calafat, Anna; Cortés, Toni (Elsevier, 2019-11-12)
Article
Accés obertData prefetching aims to improve access times to data storage systems by predicting data records that are likely to be accessed by subsequent requests and retrieving them into a memory cache before they are needed. In the ... -
Dataclay: A distributed data store for effective inter-player data sharing
Marti Fraiz, Jonathan; Queralt Calafat, Anna; Gasull Moreira, Daniel; Barceló Cuerda, Alex; Costa Prats, Juan José; Cortés, Toni (2017-09-01)
Article
Accés obertIn the Big Data era, both the academic community and industry agree that a crucial point to obtain the maximum benefits from the explosive data growth is integrating information from different sources, and also combining ... -
Enabling dynamic and intelligent workflows for HPC, data analytics, and AI convergence
Ejarque Artigas, Jorge; Badia Sala, Rosa Maria; Becerra Fontal, Yolanda; Rodrigo Berlín, Julián; Folch Duran, Arnau; Lordan Gomis, Francesc; Monterrubio Velasco, Marisol; de la Puente, Josep; Queralt Calafat, Anna; Rodríguez Rodríguez, Juan E.; Rossi, Riccardo (Elsevier, 2022-09)
Article
Accés restringit per política de l'editorialThe evolution of High-Performance Computing (HPC) platforms enables the design and execution of progressively larger and more complex workflow applications in these systems. The complexity comes not only from the number ... -
Enhancing iteration performance on distributed task-based workflows
Barceló Cuerda, Alex; Queralt Calafat, Anna; Cortés, Toni (Elsevier, 2023-12)
Article
Accés restringit per política de l'editorialTask-based programming models have proven to be a robust and versatile way to approach development of applications for distributed environments. They provide natural programming patterns with high performance. However, ... -
ETP4HPC’s SRA 5 strategic research agenda for High-Performance Computing in Europe 2022: European HPC research priorities 2023-2027
Carpenter, Paul Matthew; Casas, Marc; Unsal, Osman Sabri; Radojkovic, Petar; Martorell Bofill, Xavier; Miranda, Alberto; Guitart Fernández, Jordi; Corbalán González, Julita; Peña Monferrer, Antonio José; Bautista Gomez, Leonardo Arturo; Vázquez García, Miguel; Beltran Querol, Vicenç; Queralt Calafat, Anna; Nou Castell, Ramon; Borrell Pol, Ricard; Houzeaux, Guillaume; Serradell Maronda, Kim; Carrera Pérez, David; García Sáez, Artur; Puchol García, Carlos (2022-09)
Report de recerca
Accés obertThis document feeds research and development priorities devel-oped by the European HPC ecosystem into EuroHPC’s Research and Innovation Advisory Group with an aim to define the HPC Technology research Work Programme and ... -
EU-Rent as an artifact-centric process model: technical report
Estañol Lamarca, Montserrat; Queralt Calafat, Anna; Sancho Samsó, María Ribera; Teniente López, Ernest (2012-09-20)
Report de recerca
Accés obertBusiness process modeling using an artifact-centric approach has raised a significant interest over the last few years. This approach is usually stated in terms of the BALSA framework which defi nes the four dimensions ... -
EU-Rent car rentals specification
Frias, Leonor; Queralt Calafat, Anna; Olivé Ramon, Antoni (2003-12)
Report de recerca
Accés obertEU-Rent is a widely known case study being promoted as a basis for demonstration of product capabilities. However, no in-depth case analysis neither specification has been developed. Therefore, it was considered ... -
Facilitating the definition of general constraints in UML (extended version)
Costal Costa, Dolors; Gómez Seoane, Cristina; Queralt Calafat, Anna; Raventós Pagès, Ruth; Teniente López, Ernest (2006-04)
Report de recerca
Accés obertOne important aspect in the specification of conceptual schemas is the definition of general constraints that cannot be expressed by the predefined constructs provided by conceptual modeling languages. In general this is ... -
Fusing storage and computing for the domain of business intelligence and analytics: research opportunities
Queralt Calafat, Anna; Marti Fraiz, Jonathan; Baars, Henning; Brinkmann, Andre; Cortés, Toni (Institute of Electrical and Electronics Engineers (IEEE), 2015)
Text en actes de congrés
Accés restringit per política de l'editorialWith the growing importance of external and shared data, the set of requirements for Business Intelligence and Analytics (BIA) is shifting. Current solutions still come with shortcomings, esp. In multi-stakeholder environments ... -
Machine learning-based query augmentation for SPARQL endpoints
Rico Almodóvar, Mariano; Touma, Rizkallah; Queralt Calafat, Anna; Pérez Hernandez, María S. (2018)
Comunicació de congrés
Accés obertLinked Data repositories have become a popular source of publicly-available data. Users accessing this data through SPARQL endpoints usually launch several restrictive yet similar consecutive queries, either to find the ... -
Managing the cloud continuum: lessons learnt from a real fog-to-cloud deployment
Masip Bruin, Xavier; Marín Tordera, Eva; Sánchez López, Sergio; García Almiñana, Jordi; Jukan, Admela; Juan Ferrer, Ana; Queralt Calafat, Anna; Salis, Antonio; Bartoli, Andrea; Cankar, Matija; Cordeiro, Cristovao; Jensen, Jens; Kennedy, John D. (2021-05-01)
Article
Accés obertThe wide adoption of the recently coined fog and edge computing paradigms alongsideconventional cloud computing creates a novel scenario, known as the cloud continuum, whereservices may benefit from the overall set of ... -
mF2C: Towards a coordinated management of the IoT-fof-cloud continuum
Masip Bruin, Xavier; Marín Tordera, Eva; Juan Ferrer, Ana; Queralt Calafat, Anna; Jukan, Admela; García Almiñana, Jordi; Lezzi, Daniele; Jensen, Jens; Cordeiro, Cristovao; Leckey, Alexander; Salis, Antonio; Guilhot, Denis; Cankar, Matic (ACM, 2018)
Text en actes de congrés
Accés obertFog computing enables location dependent resource allocation and low latency services, while fostering novel market and business opportunities in the cloud sector. Aligned to this trend, we refer to Fog-tocloud (F2C) ... -
OCL-Lite: a decidable (yet expressive) fragment of OCL
Queralt Calafat, Anna; Artale, Alessandro; Calvanese, Diego; Teniente López, Ernest (2012)
Text en actes de congrés
Accés obertUML has become a de facto standard in conceptual modeling. Class diagrams in UML allow one to model the data in the domain of interest by specifying a set of graphical constraints. However, in most cases one needs to provide ... -
On the semantics of operation contracts in conceptual modeling
Queralt Calafat, Anna; Teniente López, Ernest (2004-04)
Report de recerca
Accés obertThis paper describes two different ways of understanding operation contracts in the context of conceptual modeling. These two points of view are based in the total and partial correctness approaches from axiomatic programming, ... -
Predicting access to persistent objects through static code analysis
Touma, Rizkallah; Queralt Calafat, Anna; Cortés, Toni; Pérez Hernandez, María S. (Springer, 2017)
Text en actes de congrés
Accés obertIn this paper, we present a fully-automatic, high-accuracy approach to predict access to persistent objects through static code analysis of object-oriented applications. The most widely-used previous technique uses a simple ... -
PyCOMPSs: Parallel computational workflows in Python
Tejedor, Enric; Becerra Fontal, Yolanda; Alomar, Guillem; Queralt Calafat, Anna; Badia Sala, Rosa Maria; Torres Viñals, Jordi; Cortés, Toni; Labarta Mancho, Jesús José (2017-01-01)
Article
Accés obertThe use of the Python programming language for scientific computing has been gaining momentum in the last years. The fact that it is compact and readable and its complete set of scientific libraries are two important ... -
Reasoning on UML class diagrams with OCL constraints
Queralt Calafat, Anna; Teniente López, Ernest (2006-04)
Report de recerca
Accés obertWe propose a new approach to check whether a given UML class diagram with its OCL integrity constraints satisfies a set of desirable properties such as schema satisfiability, class liveliness, redundancy of integrity ... -
Revisiting active object stores: Bringing data locality to the limit with NVM
Barceló Cuerda, Alex; Queralt Calafat, Anna; Cortés, Toni (Elsevier, 2022-04)
Article
Accés obertObject stores are widely used software stacks that achieve excellent scale-out with a well-defined interface and robust performance. However, their traditional get/put interface is unable to exploit data locality at its ... -
RosneT: A block tensor algebra library for out-of-core quantum computing simulation
Sánchez Ramírez, Sergio; Conejero Bañón, Francisco Javier; Lordan Gomis, Francesc; Queralt Calafat, Anna; Cortés, Toni; Badia Sala, Rosa Maria; García Sáez, Artur (Institute of Electrical and Electronics Engineers (IEEE), 2021)
Text en actes de congrés
Accés obertWith the advent of more powerful Quantum Computers, the need for larger Quantum Simulations has boosted. As the amount of resources grows exponentially with size of the target system Tensor Networks emerge as an optimal ... -
Specifying artifact-centric business process models in UML
Estañol Lamarca, Montserrat; Queralt Calafat, Anna; Sancho Samsó, María Ribera; Teniente López, Ernest (Springer, 2015-04-01)
Capítol de llibre
Accés obertIn recent years, the artifact-centric approach to process mod- eling has attracted a lot of attention. One of the research lines in this area is finding a suitable way to represent the dimensions in this approach. Bearing ...