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Markus Endler
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Journal article
Published: 25 December 2020 in Sensors
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Traditionally, mental health specialists monitor their patients’ social behavior by applying subjective self-report questionnaires in face-to-face meetings. Usually, the application of the self-report questionnaire is limited by cognitive biases (e.g., memory bias and social desirability). As an alternative, we present a solution to detect context-aware sociability patterns and behavioral changes based on social situations inferred from ubiquitous device data. This solution does not focus on the diagnosis of mental states, but works on identifying situations of interest to specialized professionals. The proposed solution consists of an algorithm based on frequent pattern mining and complex event processing to detect periods of the day in which the individual usually socializes. Social routine recognition is performed under different context conditions to differentiate abnormal social behaviors from the variation of usual social habits. The proposed solution also can detect abnormal behavior and routine changes. This solution uses fuzzy logic to model the knowledge of the mental health specialist necessary to identify the occurrence of behavioral change. Evaluation results show that the prediction performance of the identified context-aware sociability patterns has strong positive relation (Pearson’s correlation coefficient >70%) with individuals’ social routine. Finally, the evaluation conducted recognized that the proposed solution leading to the identification of abnormal social behaviors and social routine changes consistently.

ACS Style

Ivan Rodrigues De Moura; Ariel Soares Teles; Markus Endler; Luciano Reis Coutinho; Francisco José Da Silva E Silva. Recognizing Context-Aware Human Sociability Patterns Using Pervasive Monitoring for Supporting Mental Health Professionals. Sensors 2020, 21, 86 .

AMA Style

Ivan Rodrigues De Moura, Ariel Soares Teles, Markus Endler, Luciano Reis Coutinho, Francisco José Da Silva E Silva. Recognizing Context-Aware Human Sociability Patterns Using Pervasive Monitoring for Supporting Mental Health Professionals. Sensors. 2020; 21 (1):86.

Chicago/Turabian Style

Ivan Rodrigues De Moura; Ariel Soares Teles; Markus Endler; Luciano Reis Coutinho; Francisco José Da Silva E Silva. 2020. "Recognizing Context-Aware Human Sociability Patterns Using Pervasive Monitoring for Supporting Mental Health Professionals." Sensors 21, no. 1: 86.

Conference paper
Published: 07 December 2020 in Anais do XVIII Workshop em Clouds e Aplicações (WCGA 2020)
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The MUSANet system is a three-tier middleware for smart cities implemented using InterSCity, ContextNet, and Mobile-Hub. In order to decentralize processing from the cloud, the system includes stationary layer processing in the fog and collection of mobile data in the edge. In this article, we explore the flexibility and decoupling offered by MUSANet. We present two different applications for smart cities and discuss how they can be implemented in MUSANet, showing that, using the basic infrastructure, we can build new applications without interfering in existing ones due to the low coupling between the entities that make up the tiers of MUSANet. A third application illustrates how the distribution of data processing among MUSANet layers can help reduce the network load, preserving energy.

ACS Style

Alexandre Malheiros Meslin; Noemi De La Rocque Rodriguez; Markus Endler. Supporting Multiple Smart-City Applications based on MUSANet, a Common IoMT Middleware. Anais do XVIII Workshop em Clouds e Aplicações (WCGA 2020) 2020, 13 -26.

AMA Style

Alexandre Malheiros Meslin, Noemi De La Rocque Rodriguez, Markus Endler. Supporting Multiple Smart-City Applications based on MUSANet, a Common IoMT Middleware. Anais do XVIII Workshop em Clouds e Aplicações (WCGA 2020). 2020; ():13-26.

Chicago/Turabian Style

Alexandre Malheiros Meslin; Noemi De La Rocque Rodriguez; Markus Endler. 2020. "Supporting Multiple Smart-City Applications based on MUSANet, a Common IoMT Middleware." Anais do XVIII Workshop em Clouds e Aplicações (WCGA 2020) , no. : 13-26.

Conference paper
Published: 07 December 2020 in Anais do XXXVIII Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos (SBRC 2020)
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The current dissemination of IoT increases the deployment of stream processing solutions for monitoring and controlling elements of the real-world. One of those solutions is Complex Event Processing (CEP), and to handle the high volume, velocity and volatility of data streams from IoT sensors the CEP pipeline should be distributed, preferably having CEP operators both in the cloud/cluster and in edge devices. In this paper, we present a model for a distributed CEP platform and an implementation of this model called Global CEP Manager (GCM). GCM is a service of the ContextNet middleware that supports the deployment and dynamic rearrangement of CEP queries to CEP engines executing in the cloud and in M-Hubs, that are ContextNet’s mobile edge devices.

ACS Style

Fernando Benedito Veras Magalhães; Francisco José Da Silva E Silva; Markus Endler. Support for Adaptive and Distributed Deployment of CEP Continuous Queries for the IoMT. Anais do XXXVIII Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos (SBRC 2020) 2020, 99 -112.

AMA Style

Fernando Benedito Veras Magalhães, Francisco José Da Silva E Silva, Markus Endler. Support for Adaptive and Distributed Deployment of CEP Continuous Queries for the IoMT. Anais do XXXVIII Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos (SBRC 2020). 2020; ():99-112.

Chicago/Turabian Style

Fernando Benedito Veras Magalhães; Francisco José Da Silva E Silva; Markus Endler. 2020. "Support for Adaptive and Distributed Deployment of CEP Continuous Queries for the IoMT." Anais do XXXVIII Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos (SBRC 2020) , no. : 99-112.

Journal article
Published: 28 February 2020 in IEEE Internet of Things Journal
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In this paper, we present and analyze MUSANet, a hierarchical, distributed, context-aware architecture for collecting, processing, and distributing data in smart cities. We discuss some use case examples related to monitoring and predicting bus arrivals in public transportation and weather conditions. We also present performance results in different scenarios that point to the feasibility of our goal: a scalable architecture with a fast response time to traffic events. MUSANet is based on a three-tier architecture distributed over cloud, fog, and edge, and supporting complex event processing (CEP) in all of them. Although the system is under development using the InterSCity platform in the cloud, the ContextNet middleware at the fog, and the Mobile-Hub platform at the edge, the MUSANet architecture can be deployed using other platforms, maintaining the concept of tiering responsibilities to minimize network bandwidth and delay, group communication, and broad mobile support.

ACS Style

Alexandre Meslin; Noemi Rodriguez; Markus Endler. Scalable Mobile Sensing for Smart Cities: The MUSANet Experience. IEEE Internet of Things Journal 2020, 7, 5202 -5209.

AMA Style

Alexandre Meslin, Noemi Rodriguez, Markus Endler. Scalable Mobile Sensing for Smart Cities: The MUSANet Experience. IEEE Internet of Things Journal. 2020; 7 (6):5202-5209.

Chicago/Turabian Style

Alexandre Meslin; Noemi Rodriguez; Markus Endler. 2020. "Scalable Mobile Sensing for Smart Cities: The MUSANet Experience." IEEE Internet of Things Journal 7, no. 6: 5202-5209.

Preprint
Published: 25 November 2019
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In this paper, we give an overview of the semantic gap problem in multimedia and discuss how machine learning and symbolic AI can be combined to narrow this gap. We describe the gap in terms of a classical architecture for multimedia processing and discuss a structured approach to bridge it. This approach combines machine learning (for mapping signals to objects) and symbolic AI (for linking objects to meanings). Our main goal is to raise awareness and discuss the challenges involved in this structured approach to multimedia understanding, especially in the view of the latest developments in machine learning and symbolic AI.

ACS Style

Marcio Ferreira Moreno; Guilherme Lima; Rodrigo Costa Mesquita Santos; Roberto Azevedo; Markus Endler. Bridging the Gap between Semantics and Multimedia Processing. 2019, 1 .

AMA Style

Marcio Ferreira Moreno, Guilherme Lima, Rodrigo Costa Mesquita Santos, Roberto Azevedo, Markus Endler. Bridging the Gap between Semantics and Multimedia Processing. . 2019; ():1.

Chicago/Turabian Style

Marcio Ferreira Moreno; Guilherme Lima; Rodrigo Costa Mesquita Santos; Roberto Azevedo; Markus Endler. 2019. "Bridging the Gap between Semantics and Multimedia Processing." , no. : 1.

Proceedings article
Published: 27 August 2019 in Anais do Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos (SBRC)
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Blockchain and Tangle are data structures used to create an immutable public record of data insured by a network of peer-to-peer participants who maintain a set of constantly growing data records known as ledgers. Blockchain and Tangle technologies are a decentralized solution that guarantees the exchange of large amounts of trusted messages, among billions of connected IoT devices, which are very valuable as they are valid and complete. This highly encrypted and secure peer-to-peer messaging mechanism is adopted in this project to manage the processing of IoT transactions and the coordination between the devices that interact with the process. To maintain private transactions, secure and trustless, the distributed consensus algorithms are responsible for validating and choosing transactions and recording them in the global ledger. The results showed that the speed of the consensus algorithms can affect the creation in real time of reliable stories that track the events of the IoT networks. After incorporating Complex Event Processing that allows selecting only those high level events, it is possible to get an improvement in many situations. The result is a Middleware system that provides a framework for the construction of large-scale computer applications that use Complex Events Processing and different decentralized ledgers such as the blockchain of Ethereum or IOTA Tangle, for secure data storage.

ACS Style

Adrian Concepcion Leon; Markus Endler. Secure distributed ledgers to support IoT technologies data. Anais do Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos (SBRC) 2019, 141 -154.

AMA Style

Adrian Concepcion Leon, Markus Endler. Secure distributed ledgers to support IoT technologies data. Anais do Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos (SBRC). 2019; ():141-154.

Chicago/Turabian Style

Adrian Concepcion Leon; Markus Endler. 2019. "Secure distributed ledgers to support IoT technologies data." Anais do Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos (SBRC) , no. : 141-154.

Journal article
Published: 02 February 2018 in Monografias em Ciência da Computação
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ACS Style

Gustavo Luiz Bastos Baptista; Markus Endler; Jose Viterbo Filho. MIDDLEWARE SUPPORTING SITUATIONAL AWARENESS IN MISSION-CRITICAL SCENARIOS WITH ROTORCRAFT. Monografias em Ciência da Computação 2018, 1 .

AMA Style

Gustavo Luiz Bastos Baptista, Markus Endler, Jose Viterbo Filho. MIDDLEWARE SUPPORTING SITUATIONAL AWARENESS IN MISSION-CRITICAL SCENARIOS WITH ROTORCRAFT. Monografias em Ciência da Computação. 2018; ():1.

Chicago/Turabian Style

Gustavo Luiz Bastos Baptista; Markus Endler; Jose Viterbo Filho. 2018. "MIDDLEWARE SUPPORTING SITUATIONAL AWARENESS IN MISSION-CRITICAL SCENARIOS WITH ROTORCRAFT." Monografias em Ciência da Computação , no. : 1.

Journal article
Published: 08 December 2017 in Sensors
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Context aware systems are able to adapt their behavior according to the environment in which the user is. They can be integrated into an Internet of Things (IoT) infrastructure, allowing a better perception of the user’s physical environment by collecting context data from sensors embedded in devices known as smart objects. An IoT extension called the Internet of Mobile Things (IoMT) suggests new scenarios in which smart objects and IoT gateways can move autonomously or be moved easily. In a comprehensive view, Quality of Context (QoC) is a term that can express quality requirements of context aware applications. These requirements can be those related to the quality of information provided by the sensors (e.g., accuracy, resolution, age, validity time) or those referring to the quality of the data distribution service (e.g, reliability, delay, delivery time). Some functionalities of context aware applications and/or decision-making processes of these applications and their users depend on the level of quality of context available, which tend to vary over time for various reasons. Reviewing the literature, it is possible to verify that the quality of context support provided by IoT-oriented middleware systems still has limitations in relation to at least four relevant aspects: (i) quality of context provisioning; (ii) quality of context monitoring; (iii) support for heterogeneous device and technology management; (iv) support for reliable data delivery in mobility scenarios. This paper presents two main contributions: (i) a state-of-the-art survey specifically aimed at analyzing the middleware with quality of context support and; (ii) a new middleware with comprehensive quality of context support for Internet of Things Applications. The proposed middleware was evaluated and the results are presented and discussed in this article, which also shows a case study involving the development of a mobile remote patient monitoring application that was developed using the proposed middleware. This case study highlights how middleware components were used to meet the quality of context requirements of the application. In addition, the proposed middleware was compared to other solutions in the literature.

ACS Style

Berto De Tácio Pereira Gomes; Luiz Carlos Melo Muniz; Francisco José Da Silva E Silva; Davi Viana Dos Santos; Rafael Fernandes Lopes; Luciano Coutinho; Felipe Oliveira Carvalho; Markus Endler. A Middleware with Comprehensive Quality of Context Support for the Internet of Things Applications. Sensors 2017, 17, 2853 .

AMA Style

Berto De Tácio Pereira Gomes, Luiz Carlos Melo Muniz, Francisco José Da Silva E Silva, Davi Viana Dos Santos, Rafael Fernandes Lopes, Luciano Coutinho, Felipe Oliveira Carvalho, Markus Endler. A Middleware with Comprehensive Quality of Context Support for the Internet of Things Applications. Sensors. 2017; 17 (12):2853.

Chicago/Turabian Style

Berto De Tácio Pereira Gomes; Luiz Carlos Melo Muniz; Francisco José Da Silva E Silva; Davi Viana Dos Santos; Rafael Fernandes Lopes; Luciano Coutinho; Felipe Oliveira Carvalho; Markus Endler. 2017. "A Middleware with Comprehensive Quality of Context Support for the Internet of Things Applications." Sensors 17, no. 12: 2853.

Journal article
Published: 01 July 2017 in Computer Communications
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As On-line Social Networks are nowadays largely used by mobile users and their posts potentially reveal - either explicitly or implicitly - much sensitive information about users, privacy control becomes a fundamental issue in such Mobile Social Networks (MSNs). In this paper we advocate that situational computing is the key ingredient for the development of effective mechanisms for privacy control in MSNs. We first describe an on-line survey carried out in order to understand the users requirements regarding privacy when using MSNs. The results suggest that users have dynamic and context-dependent privacy requirements and also pinpoints which types of context data are more relevant for the decision about the users willingness to share MSN content. Based on these findings, we propose SelPri, a solution developed as a proof of concept in form of an Android mobile social application that is integrated with Facebook. SelPri employs Fuzzy Logic to autonomously and dynamically adapt privacy settings of posts in MSNs according to the users current situation, freeing the user from the hassle of the manual configuration of the privacy settings whenever his/her situation changes. We also describe conducted evaluations of the user experience in using SelPri to assess its accuracy to identify user situations, and its usability and effectiveness in meeting the users dynamic and contextual privacy requirements.

ACS Style

Ariel Soares Teles; Francisco José Da Silva E Silva; Markus Endler. Situation-based privacy autonomous management for mobile social networks. Computer Communications 2017, 107, 75 -92.

AMA Style

Ariel Soares Teles, Francisco José Da Silva E Silva, Markus Endler. Situation-based privacy autonomous management for mobile social networks. Computer Communications. 2017; 107 ():75-92.

Chicago/Turabian Style

Ariel Soares Teles; Francisco José Da Silva E Silva; Markus Endler. 2017. "Situation-based privacy autonomous management for mobile social networks." Computer Communications 107, no. : 75-92.

Journal article
Published: 01 March 2017 in Information Systems
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Clusters of mobile elements, such as vehicles and humans, are a common mobility pattern of interest for many applications. The on-line detection of them from large position streams of mobile entities is a challenging task because it requires algorithms that are capable of continuously and efficiently processing the high volume of position updates in a timely manner. Currently, the majority of approaches for cluster detection operate in batch mode, where position updates are recorded during time periods of certain length and then batch processed by an external routine, thus delaying the result of the cluster detection until the end of the time period. However, if the monitoring application requires results at a higher frequency than the one delivered by batch algorithms, then results might not reflect the current clustering state of the entities. To overcome this limitation, in this paper we propose dg2cep, an algorithm that combines the well-known density-based clustering algorithm Dbscan with the data stream processing paradigm Complex Event Processing (CEP) to achieve continuous, on-line detection of clusters. Our experiments with synthetic and real world datasets indicate that dg2cep is able to detect the formation and dispersion of clusters with small latency and higher similarity to Dbscan׳s output than batch-based approaches.

ACS Style

Marcos Roriz Junior; Markus Endler; Francisco José Da Silva E Silva. An on-line algorithm for cluster detection of mobile nodes through complex event processing. Information Systems 2017, 64, 303 -320.

AMA Style

Marcos Roriz Junior, Markus Endler, Francisco José Da Silva E Silva. An on-line algorithm for cluster detection of mobile nodes through complex event processing. Information Systems. 2017; 64 ():303-320.

Chicago/Turabian Style

Marcos Roriz Junior; Markus Endler; Francisco José Da Silva E Silva. 2017. "An on-line algorithm for cluster detection of mobile nodes through complex event processing." Information Systems 64, no. : 303-320.

Journal article
Published: 10 January 2017 in Sensors
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Current mobile devices allow the execution of sophisticated applications with the capacity for identifying the user situation, which can be helpful in treatments of mental disorders. In this paper, we present SituMan, a solution that provides situation awareness to MoodBuster, an ecological momentary assessment and intervention mobile application used to request self-assessments from patients in depression treatments. SituMan has a fuzzy inference engine to identify patient situations using context data gathered from the sensors embedded in mobile devices. Situations are specified jointly by the patient and mental health professional, and they can represent the patient’s daily routine (e.g., “studying”, “at work”, “working out”). MoodBuster requests mental status self-assessments from patients at adequate moments using situation awareness. In addition, SituMan saves and displays patient situations in a summary, delivering them for consultation by mental health professionals. A first experimental evaluation was performed to assess the user satisfaction with the approaches to define and identify situations. This experiment showed that SituMan was well evaluated in both criteria. A second experiment was performed to assess the accuracy of the fuzzy engine to infer situations. Results from the second experiment showed that the fuzzy inference engine has a good accuracy to identify situations.

ACS Style

Ariel Soares Teles; Artur Rocha; Francisco José Da Silva E Silva; João Correia Lopes; Donal O’Sullivan; Pepijn Van De Ven; Markus Endler. Enriching Mental Health Mobile Assessment and Intervention with Situation Awareness †. Sensors 2017, 17, 127 .

AMA Style

Ariel Soares Teles, Artur Rocha, Francisco José Da Silva E Silva, João Correia Lopes, Donal O’Sullivan, Pepijn Van De Ven, Markus Endler. Enriching Mental Health Mobile Assessment and Intervention with Situation Awareness †. Sensors. 2017; 17 (1):127.

Chicago/Turabian Style

Ariel Soares Teles; Artur Rocha; Francisco José Da Silva E Silva; João Correia Lopes; Donal O’Sullivan; Pepijn Van De Ven; Markus Endler. 2017. "Enriching Mental Health Mobile Assessment and Intervention with Situation Awareness †." Sensors 17, no. 1: 127.

Journal article
Published: 01 July 2014 in International Journal of Adaptive, Resilient and Autonomic Systems
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Several new applications of mobile computing environments, such as Intelligent Transportation Systems, Fleet Management and Logistics, and integrated Industrial Process Automation share the requirement of remote monitoring and high performance processing of huge data streams produced by large sets of mobile nodes. Two key requirements for the deployment and operation of such mobile infrastructures are the handling of large and variable numbers of wireless connections to the monitored mobile nodes regardless of their current use or locations, and to automatically adapt to variations in the volume of the mobile data streams. This article describes the design, implementation, and evaluation of an autonomic mechanism for load balancing of mobile data streams. The autonomic capability has been incorporated into a scalable middleware system based on a Data Centric Publish Subscribe approach using the OMG Data Distribution Service (DDS) standard and aimed at real-time and adaptive handling of mobile connectivity and data stream processing for great sets of mobile nodes. A significant amount of evaluation experiments of the proposed infrastructure is presented, reinforcing its viability and the benefits arising from the use of an autonomic approach to handle the requirements of high variability and scalability.

ACS Style

Rafael Oliveira Vasconcelos; Markus Endler; Berto De Tácio Pereira Gomes; Francisco José Da Silva E Silva. Design and Evaluation of an Autonomous Load Balancing System for Mobile Data Stream Processing Based On a Data Centric Publish Subscribe Approach. International Journal of Adaptive, Resilient and Autonomic Systems 2014, 5, 1 -19.

AMA Style

Rafael Oliveira Vasconcelos, Markus Endler, Berto De Tácio Pereira Gomes, Francisco José Da Silva E Silva. Design and Evaluation of an Autonomous Load Balancing System for Mobile Data Stream Processing Based On a Data Centric Publish Subscribe Approach. International Journal of Adaptive, Resilient and Autonomic Systems. 2014; 5 (3):1-19.

Chicago/Turabian Style

Rafael Oliveira Vasconcelos; Markus Endler; Berto De Tácio Pereira Gomes; Francisco José Da Silva E Silva. 2014. "Design and Evaluation of an Autonomous Load Balancing System for Mobile Data Stream Processing Based On a Data Centric Publish Subscribe Approach." International Journal of Adaptive, Resilient and Autonomic Systems 5, no. 3: 1-19.

Journal article
Published: 01 January 2013 in Journal of Internet Services and Applications
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ACS Style

Lincoln David; Rafael Vasconcelos; Lucas Alves; Rafael André; Markus Endler. A DDS-based middleware for scalable tracking, communication and collaboration of mobile nodes. Journal of Internet Services and Applications 2013, 4, 16 .

AMA Style

Lincoln David, Rafael Vasconcelos, Lucas Alves, Rafael André, Markus Endler. A DDS-based middleware for scalable tracking, communication and collaboration of mobile nodes. Journal of Internet Services and Applications. 2013; 4 (1):16.

Chicago/Turabian Style

Lincoln David; Rafael Vasconcelos; Lucas Alves; Rafael André; Markus Endler. 2013. "A DDS-based middleware for scalable tracking, communication and collaboration of mobile nodes." Journal of Internet Services and Applications 4, no. 1: 16.

Book chapter
Published: 24 May 2012 in An Introduction to Distance Geometry applied to Molecular Geometry
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This chapter shows how the strategy proposed in the previous chapter works for a realistic scenario, such as the one described in Sect. 2.1. We present two different examples, a client query (synchronous interaction) and a client subscription (asynchronous interaction). For both cases we assume that the context data distribution corresponds to what was shown in Fig. 4.1.

ACS Style

Jose Viterbo; Markus Endler. Case Study. An Introduction to Distance Geometry applied to Molecular Geometry 2012, 63 -66.

AMA Style

Jose Viterbo, Markus Endler. Case Study. An Introduction to Distance Geometry applied to Molecular Geometry. 2012; ():63-66.

Chicago/Turabian Style

Jose Viterbo; Markus Endler. 2012. "Case Study." An Introduction to Distance Geometry applied to Molecular Geometry , no. : 63-66.

Book chapter
Published: 01 January 2012 in Mobile Context Awareness
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Mobile Applications with context awareness features allow mobile users to communicate and share different sorts of context-based information among themselves, such as the current position of other users, geo-referenced data, device speed and others. Although many of such mobile collaboration applications potentially share a good amount of functionality, most of them are developed from scratch, monolithic and tailored to specific mobile platforms, what limits their applicability. This chapter presents a client middleware architecture which supports dynamic deployment and composition of components for context-awareness, common collaboration services, and presents a context oriented language easing the coding of such applications. We also present some prototype context-aware applications implemented on the top of our middleware services, one of which was used to assess the advantages of using our middleware.

ACS Style

Lincoln David; José Viterbo; Marcelo Malcher; Hubert Fonseca; Gustavo Baptista; Markus Endler. A Middleware Supporting Adaptive and Context-Aware Mobile Applications. Mobile Context Awareness 2012, 169 -184.

AMA Style

Lincoln David, José Viterbo, Marcelo Malcher, Hubert Fonseca, Gustavo Baptista, Markus Endler. A Middleware Supporting Adaptive and Context-Aware Mobile Applications. Mobile Context Awareness. 2012; ():169-184.

Chicago/Turabian Style

Lincoln David; José Viterbo; Marcelo Malcher; Hubert Fonseca; Gustavo Baptista; Markus Endler. 2012. "A Middleware Supporting Adaptive and Context-Aware Mobile Applications." Mobile Context Awareness , no. : 169-184.

Journal article
Published: 18 March 2010 in IEEE Intelligent Systems
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This article proposes a two-tiered model for decentralized reasoning in which two interacting parties with access to different context information perform a cooperative strategy to infer situations.

ACS Style

Jose Viterbo; Markus Endler. A Two-Tiered Approach for Decentralized Reasoning in Ambient Intelligence. IEEE Intelligent Systems 2010, 25, 54 -60.

AMA Style

Jose Viterbo, Markus Endler. A Two-Tiered Approach for Decentralized Reasoning in Ambient Intelligence. IEEE Intelligent Systems. 2010; 25 (5):54-60.

Chicago/Turabian Style

Jose Viterbo; Markus Endler. 2010. "A Two-Tiered Approach for Decentralized Reasoning in Ambient Intelligence." IEEE Intelligent Systems 25, no. 5: 54-60.

Book chapter
Published: 25 March 2009 in Context-Aware Computing and Self-Managing Systems
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ACS Style

Amal El Fallah Seghrouchni; Karin Breitman; Jose Viterbo; Markus Endler; Jean-Pierre Briot; Yasmine Charif; Nicolas Sabouret; Laurent Mazuel. Managing Distributed and Heterogeneous Context for Ambient Intelligence. Context-Aware Computing and Self-Managing Systems 2009, 20092349, 79 -128.

AMA Style

Amal El Fallah Seghrouchni, Karin Breitman, Jose Viterbo, Markus Endler, Jean-Pierre Briot, Yasmine Charif, Nicolas Sabouret, Laurent Mazuel. Managing Distributed and Heterogeneous Context for Ambient Intelligence. Context-Aware Computing and Self-Managing Systems. 2009; 20092349 ():79-128.

Chicago/Turabian Style

Amal El Fallah Seghrouchni; Karin Breitman; Jose Viterbo; Markus Endler; Jean-Pierre Briot; Yasmine Charif; Nicolas Sabouret; Laurent Mazuel. 2009. "Managing Distributed and Heterogeneous Context for Ambient Intelligence." Context-Aware Computing and Self-Managing Systems 20092349, no. : 79-128.

Conference paper
Published: 01 January 2009 in Proceedings of the 6th International Workshop on Social Software Engineering
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ACS Style

Isabel Cafezeiro; José Viterbo; Alexandre Rademaker; Edward Hermann Haeusler; Markus Endler. Designing ubiquitous applications. Proceedings of the 6th International Workshop on Social Software Engineering 2009, 1 .

AMA Style

Isabel Cafezeiro, José Viterbo, Alexandre Rademaker, Edward Hermann Haeusler, Markus Endler. Designing ubiquitous applications. Proceedings of the 6th International Workshop on Social Software Engineering. 2009; ():1.

Chicago/Turabian Style

Isabel Cafezeiro; José Viterbo; Alexandre Rademaker; Edward Hermann Haeusler; Markus Endler. 2009. "Designing ubiquitous applications." Proceedings of the 6th International Workshop on Social Software Engineering , no. : 1.

Journal article
Published: 01 December 2008 in Journal of the Brazilian Computer Society
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ACS Style

Vagner Sacramento; Markus Endler; Clarisse de Souza. A privacy service for location-based collaboration among mobile users. Journal of the Brazilian Computer Society 2008, 14, 41 -57.

AMA Style

Vagner Sacramento, Markus Endler, Clarisse de Souza. A privacy service for location-based collaboration among mobile users. Journal of the Brazilian Computer Society. 2008; 14 (4):41-57.

Chicago/Turabian Style

Vagner Sacramento; Markus Endler; Clarisse de Souza. 2008. "A privacy service for location-based collaboration among mobile users." Journal of the Brazilian Computer Society 14, no. 4: 41-57.

Conference paper
Published: 01 January 2008 in Proceedings of the 6th International Workshop on Social Software Engineering
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ACS Style

José Viterbo; Markus Endler. A strategy for cooperative reasoning in ubiquitous computing environments. Proceedings of the 6th International Workshop on Social Software Engineering 2008, 66 -71.

AMA Style

José Viterbo, Markus Endler. A strategy for cooperative reasoning in ubiquitous computing environments. Proceedings of the 6th International Workshop on Social Software Engineering. 2008; ():66-71.

Chicago/Turabian Style

José Viterbo; Markus Endler. 2008. "A strategy for cooperative reasoning in ubiquitous computing environments." Proceedings of the 6th International Workshop on Social Software Engineering , no. : 66-71.