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9 Papers

Retrieval, Visualization and Validation of Affinities between Documents

Authors: Luis Trigo 1 , Martin Víta 2 , Rui Sarmento 1 and Pavel Brazdil 1

Affiliations: 1 INESC TEC, Portugal , 2 Faculty of Informatics, Czech Republic

Digital Object Identifier: 10.5220/0005662904520459

Proceedings of KITA 2015/IC3K, ISBN: 978-989-758-158-8

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We present an Information Retrieval tool that facilitates the task of the user when searching for a particular information that is of interest to him. Our system processes a given set of documents to produce a graph, where nodes represent documents and links the similarities. The aim is to offer the user a tool to navigate in this space in an easy way. It is possible to collapse/expand nodes. Our case study shows affinity groups based on the similarities of text production of researchers. This goes beyond the already established communities revealed by co-authorship. The system characterizes the activity of each author by a set of automatically generated keywords and by membership to a particular affinity group. The importance of each author is highlighted visually by the size of the node corresponding to the number of publications and different measures of centrality. Regarding the validation of the method, we analyse the impact of using different combinations of titles, abstracts and keywords on capturing the similarity between researchers.

Video Analysis in Indoor Soccer using a Quadcopter

Topics: Video Analysis; Classification; Image Understanding; Object Recognition

Authors: Filipe Trocado Ferreira 1 , Jaime S. Cardoso 2 and Hélder P. Oliveira 3

Affiliations: 1 Faculdade de Engenharia da Universidade do Porto, Portugal , 2 Faculdade de Engenharia da Universidade do Porto and INESC TEC, Portugal , 3 INESC TEC, Portugal

Digital Object Identifier: 10.5220/0005206000770086

Proceedings of ICPRAM 2015, ISBN: 978-989-758-076-5

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Automatic vision systems are widely used in sports competition to analyze individual and collective performance during the matches. However, the complex implementation based on multiple fixed cameras and the human intervention on the process makes this kind of systems expensive and not suitable for the big majority of the teams. In this paper we propose a low-cost, portable and flexible solution based on the use of Unmanned Air Vehicles to capture images from indoor soccer games. Since these vehicles suffer from vibrations and disturbances, the acquired video is very unstable, presenting a set of unusual problems in this type of applications. We propose a complete video-processing framework, including video stabilization, camera calibration, player detection, and team performance analysis. The results showed that camera calibration was able to correct automatically image-to-world homography; the player detection precision and recall was around 75%; and the high-level data interpretation showed a strong similarity with ground-truth derived results.
Collapse Button Related Ontology Subjects/Areas/Topics (10)
Applications

Image Understanding

Software Engineering

Classification

Object Recognition

Theory and Methods

Computer Vision, Visualization and Computer Graphics

Pattern Recognition

Video Analysis
Image and Video Analysis

MobBIO: A Multimodal Database Captured with a Portable Handheld Device

Topics: Image Formation, Acquisition Devices and Sensors; Mobile Imaging

Authors: Ana F. Sequeira 1 , João C. Monteiro 1 , Ana Rebelo 2 and Hélder P. Oliveira 2

Affiliations: 1 INESC TEC and Universidade do Porto, Portugal , 2 INESC TEC, Portugal

Digital Object Identifier: 10.5220/0004679601330139

Proceedings of VISAPP 2014/VISIGRAPP, ISBN: 978-989-758-009-3

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Biometrics represents a return to a natural way of identification: testing someone by what (s)he is, instead of relying on something (s)he owns or knows seems likely to be the way forward. Biometric systems that include multiple sources of information are known as multimodal. Such systems are generally regarded as an alternative to fight a variety of problems all unimodal systems stumble upon. One of the main challenges found in the development of biometric recognition systems is the shortage of publicly available databases acquired under real unconstrained working conditions. Motivated by such need the MobBIO database was created using an Asus EeePad Transformer tablet, with mobile biometric systems in mind. The proposed database is composed by three modalities: iris, face and voice.
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Applications and Services

Image Formation and Preprocessing

Mobile Imaging
Computer Vision, Visualization and Computer Graphics

Image Formation, Acquisition Devices and Sensors

SaaS Usage Information for Requirements Maintenance

Topics: Web Services; Requirements Analysis And Management; Project Management

Authors: Ana Garcia 1 and Ana C. R. Paiva 2

Affiliations: 1 INESC TEC, Portugal , 2 INESC TEC and University of Porto, Portugal

Digital Object Identifier: 10.5220/0004898403230330

Proceedings of ICEIS 2014, ISBN: 978-989-758-028-4

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The incorrect requirements elicitation, requirements changes and evolution during the project lifetime are the main causes pointed out for the failure of software projects. The requirements in the context of Software as a Service are in constant change and evolution which makes even more critical the attention given to Requirements Engineering (RE). The dynamic context evolution due to new stakeholders needs brings additional challenges to the RE such as the need to review the prioritization of requirements and manage their changes related to their baseline. It is important to apply methodologies and techniques for requirements change management to allow a flexible development of SaaS and to ensure their timely adaptation to change. However, the existing techniques and solutions can take a long time to be implemented so that they become ineffective. In this work, a new methodology to manage functional requirements is proposed. This new methodology is based on collecting and analysis of information about the usage of the service to extract pages visited, execution traces and functionalities more used. The analysis performed will allow review the existing requirements, propose recommendations based on quality concerns and improve service usability with the ultimate goal of increasing the software lifetime.
Collapse Button Related Ontology Subjects/Areas/Topics (19)
Applications

Mobile Software and Services

Software Agents and Internet Computing

Cloud Computing

Ontologies and the Semantic Web

Software Engineering

Collaboration and e-Services

Operational Research

Software Engineering Methods and Techniques

Data Engineering

Project Management

Telecommunications

e-Business

Requirements Analysis And Management

Web Services

Enterprise Information Systems

Services Science

Wireless Information Networks and Systems
Information Systems Analysis and Specification

Visualization Functionality of Virtual Factories - An Enhancement to Collaborative Business Process Management

Topics: Virtual Enterprises; Business Modeling and Business Process Management

Authors: Ahm Shamsuzzoha 1 , Filipe Ferreira 2 , Sven Abels 3 , Americo Azevedo 2 and Petri Helo 1

Affiliations: 1 University of Vaasa, Finland , 2 INESC TEC (formerly INESC Porto), Portugal , 3 Ascora GmbH, Germany

Digital Object Identifier: 10.5220/0004881405990604

Proceedings of ICEIS 2014, ISBN: 978-989-758-028-4

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This paper focuses on process visualization that is applicable to managing a Virtual Factory (VF) business environment. It briefly provides all aspects of implementing the dashboard user interface that is to be used by the VF partners. The dashboard features state-of-the art business intelligence and provides data visualization, user interfaces and menus to support VF partners to execute collaborative processes. With advanced visualizations that produce quality graphics it offers a variety of information visualizations that brings the process data to life with clarity. This data visualization provides critical operational matrices (e.g. KPIs) required to manage virtual factories. Various technical aspects of this dashboard user interface portal are elaborated within the scope of this research such as installation instructions, technical requirements for the users and developers, execution and usage aspects, limitations and future works. The dashboard user interface portal presents different widgets according to the VF requirements that are to be needed to support the visualization and monitoring of various business processes within a VF. The research work highlighted in this paper is conceptualized, developed and validated within the scope of the European Commission NMP priority of the Seventh RTD Framework Programme for the ADVENTURE (ADaptive Virtual ENterprise ManufacTURing Environment) project.
Collapse Button Related Ontology Subjects/Areas/Topics (3)
Enterprise Information Systems

Software Agents and Internet Computing

Virtual Enterprises

STAFF LINE DETECTION AND REMOVAL WITH STABLE PATHS

Topics: Image and Video Processing; Multimedia Databases, Indexing, Recognition and Retrieval; Design and Implementation of Signal Processing Systems

Authors: Artur Capela 1 , Ana Rebelo 1 , Jaime S. Cardoso 2 and Carlos Guedes 3

Affiliations: 1 INESC Porto, Portugal , 2 INESC Porto, Faculdade de Engenharia, Universidade do Porto, Portugal , 3 INESC Porto, Escola Superior de Música e Artes do Espectáculo, Portugal

Digital Object Identifier: 10.5220/0001937802630270

Proceedings of SIGMAP 2008/ICETE, ISBN: 978-989-8111-60-9

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Many music works produced in the past are currently available only as original manuscripts or as photocopies. Preserving them entails their digitalization and consequent accessibility in a machine-readable format, which encourages browsing, retrieval, search and analysis while providing a generalized access to the digital material. Carrying this task manually is very time consuming and error prone. While optical music recognition (OMR) systems usually perform well on printed scores, the processing of handwritten music by computers remains below the expectations. One of the fundamental stages to carry out this task is the detection and subsequent removal of staff lines. In this paper we integrate a general-purpose, knowledge-free method for the automatic detection of staff lines based on stable paths, into a recently developed staff line removal toolkit. Lines affected by curvature, discontinuities, and inclination are robustly detected. We have also developed a staff removal algorithm adapting an existing line removal approach to use the stable path algorithm at the detection stage. Experimental results show that the proposed technique outperforms well-established algorithms. The developed algorithm will now be integrated in a web based system providing seamless access to browsing, retrieval, search and analysis of submitted scores.
Collapse Button Related Ontology Subjects/Areas/Topics (7)
Design and Implementation of Signal Processing Systems

Multimedia Databases, Indexing, Recognition and Retrieval

Multimedia Systems and Applications

Image and Video Processing, Compression and Segmentation

Multimedia Signal Processing

Telecommunications
Multimedia

TOWARDS A SELF-FORMING BUSINESS NETWORKING ENVIRONMENT

Topic: Modeling Concepts and Information Integration Tools

Authors: Claudia-Melania Chituc and Americo Lopes Azevedo

Affiliation: FEUP (Faculty of Engineering of the University of Porto); INESC Porto, Portugal

Digital Object Identifier: 10.5220/0002522404550458

Proceedings of ICEIS 2005, ISBN: 972-8865-19-8

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The rapid evolution of the markets and the changing client’s demands determined enterprises to adapt their business from traditional business practices to e-business, and new forms of collaboration (such as supply chain enterprises, extended enterprises or virtual enterprises) were created. Technologies such as Peer-to-Peer, Web services, intelligent agents, Workflow become core technologies supporting enterprise integration, streamlining transactions while supporting process coordination and consistency. The aim of this paper is to concisely present some relevant business integration reference models, frameworks, standards and technologies, and to propose an approach towards the development of a conceptual framework for a self-forming business networking environment based on Plug-and-Do Business paradigm.
Collapse Button Related Ontology Subjects/Areas/Topics (3)
Enterprise Information Systems

Information Systems Analysis and Specification

Modeling Concepts and Information Integration Tools

MPEG-21 IN BROADCASTING role in the digital transition of broadcasting

Topics: Content Protection and Security; Digital Audio and Video Broadcasting; Universal Multimedia Adaptation

Authors: Itaru Kaneko 1 , Artur Lugmayr 2 , Seppo Kalli 2 , Abdellatif Benjelloun Touimi 3 , Jong-Nam Kim 4 , Claudio Alberti 5 , Sadigurschi Yona 6 , Jaejoon Kim 7 and Maria Teresa Andrade 8

Affiliations: 1 Tokyo Polytechnic University, Japan , 2 Digital Media Institute, Finland , 3 France Telecom R&D, France , 4 Korean Broadcasting System (KBS), Korea, Republic of , 5 EPFL, Switzerland , 6 NDS Technologies, Israel , 7 Daegu University, Korea, Republic of , 8 INESC Porto, Portugal

Digital Object Identifier: 10.5220/0001385802170222

Proceedings of ICETE 2004, ISBN: 972-8865-15-5

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The transition to digital in the TV broadcasting industry is already gradually being performed while the complete digital switchover seems now possible to be accomplished within the near future. This article describes and analyses this phenomenon and the role of MPEG-21 may play in it. MPEG-21 is the ISO/IEC standard currently under development in MPEG (ISO/IEC JTC1/SC29/WG11). Unlike preceding MPEG standards - MPEG-21 does not specify a coding format of the content but rather a set of standards to ease transactions of multimedia content and the provision of digital multimedia services in heterogeneous network environments, including broadcast. In this paper, we highlight the role of MPEG-21 in broadcasting, in particular in the deployment of digital TV services.
Collapse Button Related Ontology Subjects/Areas/Topics (7)
Content Protection and Security

Multimedia and Communications

Telecommunications

Digital Audio and Video Broadcasting

Multimedia Signal Processing

Universal Multimedia Adaptation
Multimedia

ORDER PLANNING DECISION SUPPORT SYSTEM FOR CUSTOMER DRIVEN MANUFACTURING: OVERVIEW OF MAIN SYSTEM REQUIREMENTS

Topic: Strategic Decision Support Systems

Authors: Henrique Proença 1 and Américo Azevedo 2

Affiliations: 1 Escola Superior de Tecnologia de Castelo Branco, Portugal , 2 Faculdade de Engenharia da Universidade do Porto, INESC Porto, Portugal

Digital Object Identifier: 10.5220/0002653404170422

Proceedings of ICEIS 2004, ISBN: 972-8865-00-7

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An important goal in schedule production orders through a manufacturing facility is to assure that the work is completed as close as possible to its due date. Work that is late creates downstream delays, while early completion can be detrimental if storage space is limited. Production planning and control manufacturing is becoming more difficult as family products increase and quantity decreases. This paper presents an ongoing information system development that aims the production planning of special test tables equipment for automobile components manufacturers. The simulated based information system will be used to support planning and schedule activities; to compare and analyze the impact of planning rescheduling; to forecast the production completion date; to detect bottlenecks and to evaluate machines performance.
Collapse Button Related Ontology Subjects/Areas/Topics (3)
Artificial Intelligence and Decision Support Systems

Enterprise Information Systems

Strategic Decision Support Systems

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