Browsing by Author "Larriba Pey, Josep"
Now showing items 1-20 of 40
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3D-PP: A tool for discovering conserved three-dimensional protein patterns
(2019-06-28)
Article
Open AccessDiscovering conserved three-dimensional (3D) patterns among protein structures may provide valuable insights into protein classification, functional annotations or the rational design of multi-target drugs. Thus, several ... -
A discussion on the design of graph database benchmarks
(2011)
Article
Open AccessGraph Database Management systems (GDBs) are gaining popularity. They are used to analyze huge graph datasets that are naturally appearing in many application areas to model interrelated data. The objective of this paper ... -
An inside analysis of a genetic-programming based optimizer
(Institute of Electrical and Electronics Engineers, 2006)
Conference report
Open AccessThe use of evolutionary algorithms has been proposed as a powerful random search strategy to solve the join order problem. Specifically, genetic programming used in query optimization has been proposed as an alternative ... -
Anonymizing data via polynomial regression
(2007)
Conference report
Open AccessThe amount of confidential information accessible through the Internet is growing continuously. In this scenario, the improvement of anonymizing methods becomes crucial to avoid revealing sensible information of individuals. ... -
Automated construction and analysis of political networks via open government and media sources
(2016)
Conference report
Open AccessWe present a tool to generate real world political networks from user provided lists of politicians and news sites. Additional output includes visualizations, interactive tools and maps that allow a user to better understand ... -
Automatic multi-partite graph generation from arbitrary data
(2014-08-22)
Article
Restricted access - publisher's policyIn this paper we present a generic model for automatic generation of basic multi-partite graphs obtained from collections of arbitrary input data following user indications. The paper also presents GraphGen, a tool that ... -
Branch classification to control instruction fetch in simultaneous multithreaded architectures
(Institute of Electrical and Electronics Engineers (IEEE), 2002)
Conference report
Open AccessIn simultaneous multithreaded architectures many separate threads are running concurrently, sharing processor resources, thereby realizing a high utilization rate of the available hardware. However, this also implies that ... -
Cache-aware load balancing vs. cooperative caching for distributed search engines
(IEEE Computer Society Publications, 2009-06-25)
Conference report
Open AccessIn this paper we study the performance of a distributed search engine from a data caching point of view. We compare and combine two different approaches to achieve better hit rates: (a) send the queries to the node which ... -
CIGO! Mobility management platform for growing efficient and balanced smart city ecosystem
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Restricted access - publisher's policyThe massive amount of tourists, citizens and traffic in big cities usually collapse busy areas causing transport inefficiency, unbalanced economic growth, crime, and nuisance among citizens and visitors. Therefore, the ... -
Code layout optimizations for transaction processing workloads
(Institute of Electrical and Electronics Engineers (IEEE), 2001)
Conference report
Open AccessCommercial applications such as databases and Web servers constitute the most important market segment for high-performance servers. Among these applications, on-line transaction processing (OLTP) workloads provide a ... -
Cooperative cache analysis for distributed search engines
(2010)
Article
Restricted access - publisher's policyIn this paper, we study the performance of a distributed search engine from a data caching point of view using statistical tools on a varied set of configurations. We study two strategies to achieve better performance: ... -
Design and evaluation of tridiagonal solvers for vector and parallel computers
(Universitat Politècnica de Catalunya, 1995-03-10)
Doctoral thesis
Open Access -
DEX: High-performance exploration on large graphs for information retrieval
(2007)
Conference report
Restricted access - publisher's policyLink and graph analysis tools are important devices to boost the richness of information retrieval systems. Internet and the existing social networking portals are just a couple of situations where the use of these tools ... -
Efficient graph management based on bitmap indices
(Association for Computing Machinery (ACM), 2012)
Conference report
Restricted access - publisher's policyThe increasing amount of graph like data from social networks, science and the web has grown an interest in analyzing the relationships between different entities. New specialized solutions in the form of graph databases, ... -
Fetching instruction streams
(Institute of Electrical and Electronics Engineers (IEEE), 2002)
Conference report
Open AccessFetch performance is a very important factor because it effectively limits the overall processor performance. However there is little performance advantage in increasing front-end performance beyond what the back-end can ... -
High quality, scalable and parallel community detection for large real graphs
(Association for Computing Machinery (ACM), 2014)
Conference report
Restricted access - publisher's policyCommunity detection has arisen as one of the most relevant topics in the field of graph mining, principally for its applications in domains such as social or biological networks analysis. Different community detection ... -
Hybrid in-memory and on-disk tables for speeding-up table accesses
(Springer, 2010)
Conference report
Open AccessMain memory database management systems have become essential for response-time-bounded applications, such as those in telecommunications systems or Internet, where users frequently access a table in order to get information ... -
Hybrid tables for speeding-up data accesses in hybrid database management systems
(2011)
Conference lecture
Open Access -
Improving microaggregation for complex record anonymization
(Springer Verlag, 2008)
Conference report
Restricted access - publisher's policyMicroaggregation is one of the most commonly employed microdata protection methods. This method builds clusters of at least k original records and replaces the records in each cluster with the centroid of the cluster. ... -
Increasing polynomial regression complexity for data anonymization
(IEEE Computer Society, 2007)
Conference report
Open AccessPervasive computing and the increasing networking needs usually demand from publishing data without revealing sensible information. Among several data protection methods proposed in the literature, those based on linear ...
