Browsing by Subject "Semantic Web"

Now showing items 21-40 of 40

    • Improvement of a Document Retrieval System for the Supply Chain domain 

      Sant Albors, Ignasi (Universitat Politècnica de Catalunya, 2021-10-25)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Aquest projecte s'enmarca en el context del projecte Europeu "Semantically Connected Semiconductor Supply Chains (SC3)". Es farà ús de Natural Language Processing i Semantic Web , adaptant les tècniques per a poder referenciar ...

    • Improving object detection by exploiting semantic relations between objects 

      Petrov, Yordan (Universitat Politècnica de Catalunya, 2017-05)
      Master thesis
      Open Access
      Object detection is a fundamental and challenging problem in computer vision. Detecting the objects visible in an image can give us a good understanding and description of the image. The extracted information can later ...

    • Insight Centre for Data Analytics (DCU) at TRECVid 2014: instance search and semantic indexing tasks 

      McGuinness, Kevin; Mohedano, Eva; Zhang, ZhenXing; Hu, Feiyan; Abatal, Rami; Gurrin, Cathal; O'Connor, Noel; Smeaton, Alan F.; Salvador Aguilera, Amaia; Giró Nieto, Xavier; Ventura, Carles (2014)
      Conference report
      Open Access
      Insight-DCU participated in the instance search (INS) and semantic indexing (SIN) tasks in 2014. Two very different approaches were submitted for instance search, one based on features extracted using pre-trained deep ...

    • Integration of wsn in semantic web 

      Brands, Enzo (Universitat Politècnica de Catalunya, 2014-06-10)
      Master thesis
      Open Access
      The main goal of this master's thesis is to research the possibilities to integrate multi- media data coming from a Wireless Sensor Network in the Semantic Web. This research fits within the development of CommonSense, a ...

    • Link prediction in very large directed graphs: Exploiting hierarchical properties in parallel 

      Garcia Gasulla, Dario; Cortés García, Claudio Ulises (CEUR-WS.org, 2014)
      Conference report
      Open Access
      Link prediction is a link mining task that tries to find new edges within a given graph. Among the targets of link prediction there is large directed graphs, which are frequent structures nowadays. The typical sparsity of ...

    • Linking media: adopting semantic technologies for multimodal media connection 

      Fernàndez, Dèlia; Bou Balust, Elisenda; Giró Nieto, Xavier; Riviero, Juan Carlos; Espadaler, Joan; Rodríguez, David; Colom Serra, Aleix; Rimmerk, Joan Marco; Varas, David; Massuda, Issey; Roig, Carlos (CEUR-WS.org, 2018)
      Conference report
      Open Access
      Today's media and news organizations are constantly generating large amounts of multimedia content, majorly delivered online. As the online media market grows, the management and delivery of contents is becoming a challenge. ...

    • Modeling and developing access control policies using semantic technologies 

      Haro Juan, Carles de (Universitat Politècnica de Catalunya, 2009-09-11)
      Master thesis
      Open Access
      Policy languages have become the most common way to protect the online resources from unauthorized access. Nowadays, the Sun's XACML has become the most widely used standard for access control, allowing the definition of ...

    • Modeling and exploiting Security and Trust using Semantic Tech nolog ies Student 

      Ballester Funes, Ana (Universitat Politècnica de Catalunya, 2009-09-08)
      Master thesis
      Open Access
      Providing applications with semantics is an upward trend, so it may also seem interesting to add semantic technologies to the security and trust field, because of its multiple benefits. Semantic technologies allow us to ...

    • Ontology-based Information Extraction 

      Vicient Monllaró, Carlos (Universitat Politècnica de Catalunya, 2011-06-23)
      Master thesis
      Open Access
      Since the creation of the World Wide Web (referred as WWW), presented by Tim Berners-Lee in 1989, its structure and architecture have been in constant growth and development. Nowadays the Web is involved in what we know ...

    • QUARQ: QUick approximate and relaxed querying 

      Ortiz Santiago, Víctor Alejandro; Marinescu, Maria Cristina; Sancho Samsó, María Ribera (Barcelona Supercomputing Center, 2022-05)
      Conference report
      Open Access
      Executing queries over Linked Open Data (LOD) is a complex task. The total number of sources triggered by a single query cannot be known in advance, nor the reasoning complexity applied to each source. In order to avoid ...

    • Rich internet application for semi-automatic annotation of semantic shots on keyframes 

      Carcel, Elisabet; Martos, Manuel; Giró Nieto, Xavier; Marqués Acosta, Fernando (Springer Verlag, 2012-09)
      Part of book or chapter of book
      Restricted access - publisher's policy
      This paper describes a system developed for the semiautomatic annotation of keyframes in a broadcasting company. The tool aims at assisting archivists who traditionally label every keyframe manually by suggesting them an ...

    • Seguridad & web semántica 

      Ribera Hidalgo, Francesc (2010-12)
      Audiovisual
      Open Access

    • Semantic IoT for reasoning and BigData analytics 

      Van Hille, Reinout (Universitat Politècnica de Catalunya, 2018-06-28)
      Master thesis
      Open Access
      Recent developments in the IoT industries have led to an increase in data availability that is starting to weight heavily on the traditional idea of pushing data to the Cloud. This study focuses on identifying tasks that ...

    • Semantic stream computing for large data-set analytics 

      Giordano, Andrea (Universitat Politécnica de Catalunya, 2017-12)
      Master thesis
      Open Access
      One of the most interesting research fields in IT industries is the quest of software able to deal efficiently with Big Data. In this thesis, we have studied Big Data especially about their spread in healthcare, where data ...

    • Servicios de confianza semántica para entornos ambientales seguros 

      Pujol Martínez, Helena (Universitat Politècnica de Catalunya, 2010-06)
      Master thesis (pre-Bologna period)
      Open Access
      Este proyecto se centra en la seguridad y la confianza en sistemas y tecnologías de la información y la comunicación (TIC). Es parte de un trabajo original de investigación llevado a cabo en la empresa Safelayer Secure ...

    • System architecture of a web service for Content-Based Image Retrieval 

      Giró Nieto, Xavier; Ventura, Carles; Pont Tuset, Jordi; Cortés Yuste, Silvia; Marqués Acosta, Fernando (Association for Computing Machinery (ACM), 2010)
      Conference lecture
      Open Access
      This paper presents the system architecture of a Content- Based Image Retrieval system implemented as a web service. The proposed solution is composed of two parts, a client run- ning a graphical user interface for query ...

    • The pragmatic proof: hypermedia API composition and execution 

      Verborgh, Ruben; Arndt, Dorthe; Van Hoecke, Sofie; De Roo, Jos; Mels, Giovanni; Steiner, Thomas; Gabarró Vallès, Joaquim (2017-01-01)
      Article
      Open Access
      Machine clients are increasingly making use of the Web to perform tasks. While Web services traditionally mimic remote procedure calling interfaces, a new generation of so-called hypermedia APIs works through hyperlinks ...

    • The project HOPS: enabling an intelligent natural language based hub for the deployment of advanced semantically enriched multi-channel mass-scale online public services 

      Gatius Vila, Marta; González Bermúdez, Meritxell (2005-09)
      Article
      Open Access
      El objetivo principal del proyecto HOPS es desarrollar una plataforma multimodal y multilingüe que facilite el acceso de los ciutadanos a sus adminitraciones más próximas. El proyecto integra tecnologías de voz, procesamiento ...

    • Using Semantic Web Concepts to Achieve Traceability in Cross-disciplinary Development Projects 

      Reguant Comellas, Roc (Universitat Politècnica de Catalunya, 2014-09-15)
      Bachelor thesis
      Restricted access - confidentiality agreement

    • VLX-Stories: building an online Event Knowledge Base with Emerging Entity detection 

      Fernández Cañellas, Dèlia; Espadaler, Joan; Rodríguez, David; Garolera, Blai; Canet Tarrés, Gemma; Colom Serra, Aleix; Rimmek, Joan Marco; Giró Nieto, Xavier; Bou Balust, Elisenda; Riveiro, Juan Carlos (Springer, 2019)
      Conference lecture
      Restricted access - publisher's policy
      We present an online multilingual system for event detection and comprehension from media feeds. The system retrieves information from news sites, aggregates them into events (event detection), and summarizes them by ...