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22 Papers

Urban Re-Identification: Fusing Local and Global Features with Residual Masked Maps for Enhanced Vehicle Monitoring in Small Datasets

Topics: Features Extraction; Object Detection and Localization; Tracking and Visual Navigation; Assistive Computer Vision; Deep Learning for Tracking

Authors: William Ramirez , Cesar Franco , Thiago R. da Motta and Alberto Raposo

Affiliation: Pontifical Catholic University of Rio de Janeiro, Brazil

Digital Object Identifier: 10.5220/0013176300003912

Proceedings of VISAPP 2025, ISBN: 978-989-758-728-3

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This paper presents an optimized vehicle re-identification (Re-ID) approach focused on small datasets. While most existing literature concentrates on deep learning techniques applied to large datasets, this work addresses the specific challenges of working with smaller datasets, mainly when dealing with incomplete partitioning information. Our approach explores automated regional proposal methods, examining residuality and uniform sampling techniques for connected regions through statistical methods. Additionally, we integrate global and local attributes based on mask extraction to improve the generalization of the learning process. This led to a more effective balance between small and large datasets, achieving up to an 8.3% improvement in Cumulative Matching Characteristics (CMC) at k=5 compared to attention-based methods for small datasets. We improved generalization regarding context changes of up to 13% in CMC for large datasets. The code, model, and DeepStream-based implementations are available at https://github.com/will9426/will9426-automatic-Regionproposal-for-cars-in-Re-id-models.

An Architecture for Autonomous Normative BDI Agents based on Personality Traits to Solve Normative Conflicts

Topics: Multi-Agent Systems; Agent Oriented Software Engineering

Authors: Paulo Henrique Cardoso Alves , Marx Leles Viana and Carlos José Pereira de Lucena

Affiliation: Pontifical Catholic University of Rio de Janeiro - PUC, Brazil

Digital Object Identifier: 10.5220/0006599300800090

Proceedings of ICAART 2018, ISBN: 978-989-758-275-2

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Norms are promising mechanisms of social control to ensure a desirable social order in open multiagent systems. Normative multiagent systems offer the ability to integrate social and individual factors to provide increased levels of fidelity with respect to modelling social phenomena such as cooperation; coordination; decision-making process, and organization in artificial agent systems. However, norms eventually can be conflicting — for example, when there is a norm that prohibits an agent to perform a particular action and another norm that obligates the same agent to perform the same action, the agent is not able to fulfill both norms at the same time. The agent’s decision about which norms to fulfill can be defined based on rewards, punishments and agent’s goals. Sometimes, the analysis between these attributes will not be enough to allow the agent to make the best decision. This paper introduces an architecture that considers the agent’s personality traits in order to improve the normative conflict solving process. In addition, the agent can execute different behaviors with equal environment variables, just by changing its own internal characteristics. The applicability and validation of our approach are demonstrated by an experiment that reinforces the importance of the society’s norms.
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Agents

Enterprise Information Systems

Multi-Agent Systems

Artificial Intelligence

Knowledge Engineering and Ontology Development

Software Engineering

Artificial Intelligence and Decision Support Systems

Knowledge-Based Systems

Symbolic Systems
Distributed and Mobile Software Systems

COMMUNITY ASSOCIATION MAP - Processing Inter-community Relationships

Topics: Learning User Profiles; Web Information Filtering and Retrieval

Authors: Dárlinton B. Feres Carvalho , Hugo Fuks and Carlos José Pereira de Lucena

Affiliation: Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Brazil

Digital Object Identifier: 10.5220/0003913006650670

Proceedings of WEBIST 2012, ISBN: 978-989-8565-08-2

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The use of modern communication technology like the Internet brings a new perspective for the study of society. Following this paradigm shift, this paper presents a process to help in the analysis of social media available on the Internet, specially the analysis focused in the online community’s content. The process goal is to reveal the interests of users through a map of associated communities. The user membership is utilized to establish the relationship among communities. This map shows the interests of members in other communities. An example illustrates the application of the process. A discussion about the opportunities and drawbacks of the process usage is also presented.

INTENTIONAL MOBILE AGENTS IN UBIQUITOUS SYSTEMS

Topics: Multi-Agent Systems; Mobile Agents

Authors: Milene Serrano and Carlos José Pereira de Lucena

Affiliation: Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Brazil

Digital Object Identifier: 10.5220/0003111201470156

Proceedings of ICAART 2011, ISBN: 978-989-8425-41-6

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Being everywhere, going anywhere and accessing at any time. Ubiquitous computing is the paradigm of service omnipresence, device heterogeneity, calm technology application and user satisfaction. Therefore, the success of ubiquitous systems depends on the mobile computing nature. In this paper, we introduce the application of intentional mobile agents in the systematic development of ubiquitous systems. These agents are commonly used to perform specific activities in dedicated servers, such as the content adaptability based on the ubiquitous profiles information. It demands context-awareness, which can be improved by exploring critical interactions among mobility, smart-spaces and cognitive-based autonomous entities. Finally, we show how our proposal has been appropriately applied to a ubiquitous system from the e-commerce domain.
Collapse Button Related Ontology Subjects/Areas/Topics (11)
Agents

Enterprise Information Systems

Multi-Agent Systems

Artificial Intelligence

Knowledge Engineering and Ontology Development

Software Engineering

Artificial Intelligence and Decision Support Systems

Knowledge-Based Systems

Symbolic Systems
Distributed and Mobile Software Systems

Mobile Agents

NBDI: AN ARCHITECTURE FOR GOAL-ORIENTED NORMATIVE AGENTS

Topics: Knowledge Representation and Reasoning; Autonomous Systems; Agent Platforms and Interoperability

Authors: Baldoino F. dos S. Neto 1 , Viviane Torres da Silva 2 and Carlos J. P. de Lucena 1

Affiliations: 1 PUC-Rio, Brazil , 2 UFF, Brazil

Digital Object Identifier: 10.5220/0003179801160125

Proceedings of ICAART 2011, ISBN: 978-989-8425-40-9

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Normative regulation is a mechanism of social control that regulates the behaviour of autonomous agents indicating that such agents are permitted, obligated or prohibited to achieve something in the world, and defining rewards by stating stimulus to their fulfilment and punishments by discouraging their violation. Since goal-oriented agents‘ priority is the accomplishment of their own desires, they must evaluate the pros and cons associated with the fulfilment or violation of the norms before choosing to comply or not with them. In this context, we propose an extension to the BDI architecture by including norms related functions to check the incoming perceptions (including norms), select the norms they intend to fulfil based on the benefits they provide to the achievement of the agent‘s desires and intentions, and decide to cope or not with the norms while dropping, retaining or adopting new intentions. We demonstrate the applicability of our approach through an non- combatant evacuation scenario implemented by using the Normative Jason platform.
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Agent Platforms and Interoperability

Artificial Intelligence

Knowledge Representation and Reasoning

Agents

Autonomous Systems

Symbolic Systems

APPLYING FIPA STANDARDS ONTOLOGICAL SUPPORT TO INTENTIONAL-MAS-ORIENTED UBIQUITOUS SYSTEM

Topic: Agents for Internet Computing

Authors: Milene Serrano and Carlos José Pereira de Lucena

Affiliation: Pontifical Catholic University of Rio de Janeiro, Brazil

Digital Object Identifier: 10.5220/0002969001140121

Proceedings of ICEIS 2010, ISBN: 978-989-8425-07-2

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In this paper, we present the development of an Intentional-MAS-Oriented Ubiquitous System driven by the FIPA Standards Ontological Support. This support contemplates the development with a certain degree of commonality. Our main goal is to improve the Intentional Systematic Software Development for further Ubiquitous Systems, by considering the same language, vocabulary, and protocols in the agents' communication and inter-operability as well as an adequate context-aware knowledge representation for different smart-spaces.
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Agents

Artificial Intelligence

AUTOMATIC DERIVATION OF SPRING-OSGI BASED WEB ENTERPRISE APPLICATIONS

Topic: Software Engineering

Authors: Elder Cirilo 1 , Uirá Kuleza 2 and Carlos Lucena 1

Affiliations: 1 Pontifical Catholic University of Rio de Janeiro, Brazil , 2 Federal University of Rio Grande do Norte, Brazil

Digital Object Identifier: 10.5220/0002013502280233

Proceedings of ICEIS 2009, ISBN: 978-989-8111-84-5

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Component-based technologies (CBTs) are nowadays widely adopted in the development of different kinds of applications. They provide functionalities to facilitate the management of the application components and their different configurations. Spring and OSGi are two relevant examples of CBTs in the mainstream scenario. In this paper, we explore the use of Spring/OSGi technologies in the context of automatic product derivation. We illustrated through a typical web-based enterprise application: (i) how different models of a feature-based product derivation tool can be automatically generated based on the configuration files of Spring and OSGi, and Java annotations; and (ii) how the different abstractions provided by these CBTs can be related to a feature model with the aim to automatically derive an Spring/OSGi based application or product line.
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Enterprise Information Systems

Information Systems Analysis and Specification

Software Engineering

FLESHING OUT CLUES ON GROUP PROGRAMMING LEARNING

Topics: Internet and Collaborative Computing; e-Learning and e-Teaching

Authors: Thais Castro 1 , Hugo Fuks 2 , Leonardo Santos 3 and Alberto Castro 3

Affiliations: 1 Pontifical Catholic University of Rio de Janeiro; Federal University of Amazonas, Brazil , 2 Pontifical Catholic University of Rio de Janeiro, Brazil , 3 Federal University of Amazonas, Brazil

Digital Object Identifier: 10.5220/0001951700680073

Proceedings of ICEIS 2009, ISBN: 978-989-8111-87-6

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This work examines the findings of a case study carried out in the first semester of 2008, which uses a programming progression learning scheme, from the individual to group programming. This approach implies the generation of conversation logs among students as they take part in group programming. Supporting strategies are the evidences fleshed out through those logs. These strategies will guide the teacher on his inferences in the next group programming practical sessions.
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Computer-Supported Education

e-Learning and e-Teaching

Internet and Collaborative Computing

e-Learning

Enterprise Information Systems

Software Agents and Internet Computing

INTEGRATING VR IN AN ENGINEERING COLLABORATIVE PROBLEM SOLVING ENVIRONMENT

Topics: Multimedia Systems; Virtual Reality and Augmented Reality

Authors: Ismael H. F. dos Santos 1 , Alberto Raposo 2 and Marcelo Gattass 2

Affiliations: 1 Petrobras Research Center, Brazil , 2 PUC-Rio, Brazil

Digital Object Identifier: 10.5220/0002012501240129

Proceedings of ICEIS 2009, ISBN: 978-989-8111-88-3

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We present an environment for executing engineering simulations and visualizing results in a Virtual Environment. The work is motivated by the necessity of finding effective solutions for collaboration of team workers during the execution of complex Petroleum Engineering projects. By means of a Scientific Workflow Management System users are able to orchestrate the execution of different simulations as workflow tasks that can be arranged in many ways according to project requirements. Within a workflow, as its last step, the most interesting cases can be selected for visualization in a distributed collaborative session.
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Enterprise Information Systems

Multimedia Systems

Virtual Environment, Virtual and Augmented Reality

Human-Computer Interaction

Robotics and Automation

Virtual Reality and Augmented Reality
Informatics in Control, Automation and Robotics

JAAF-S: A FRAMEWORK TO IMPLEMENT AUTONOMIC AGENTS ABLE TO DEAL WITH WEB SERVICES

Topics: Service-Oriented Computing; Multi-Agent Systems

Authors: Baldoino F. dos S. Neto 1 , Andrew D. da Costa 1 , Carlos J. P. de Lucena 1 , Viviane T. da Silva 2 and Manoel T. de A. Netto 1

Affiliations: 1 PUC-Rio, Brazil , 2 Universidade Federal Fluminense, Brazil

Digital Object Identifier: 10.5220/0002259702450250

Proceedings of ICSOFT 2009, ISBN: 978-989-674-009-2

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Due to the widespread interest and deployment of web services and service-oriented architectures in industry, it is necessary to develop systems able to, at run-time, discover, reason and select services. Considering that agents present properties like reasoning, autonomy, pro-activity and self-adaptation, the multi-agent system is a paradigm that fits these concerns. Agents can be used to autonomously and pro-actively discover services, decide about the most appropriate service and adapt themselves if they face a problem while using the selected service. In this paper we focus on a framework (Java self-Adaptive Agent Framework for Service – JAAF-S) to implement self-adaptive agents able to adapt themselves while searching and using web services. The framework also provides support to three main agent-related properties: autonomy, pro-activity and reasoning. JAAF-S extends the JADE framework that already gives support to autonomy and pro-active agents, provides reasoning methods based on rules, cases and genetic algorithms as well as mechanisms to discover and select web services.
Collapse Button Related Ontology Subjects/Areas/Topics (14)
Agents

e-Business

Service-Oriented Computing

Artificial Intelligence

Enterprise Information Systems

Services

Artificial Intelligence and Decision Support Systems

Knowledge Engineering and Ontology Development

Software Engineering

Communication and Software Infrastructure

Knowledge-Based Systems

Symbolic Systems
Distributed and Mobile Software Systems

Multi-Agent Systems

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