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Displaying 1-50 out of 443 total
Interactive codesign for real-time embedded control systems: task graph generation from SA/VHDL models
Found in: EUROMICRO Conference
By S.A. Ong, K. Tiensyrja, L. Jozwiak
Issue Date:September 1997
pp. 172
Design of real-time embedded control systems is a complicated task. Within the Interactive Co-design approach (InCo) we adopt the SA/VHDL textual/graphical functional specification method. It facilitates modular design, hierarchical decomposition and is we...
Identification of Regulatory Modules in Time Series Gene Expression Data Using a Linear Time Biclustering Algorithm
Found in: IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB)
By Arlindo L. Oliveira, Isabel Sa-Correia, Isabel Sa-Correia, Miguel C. Teixeira, Miguel C. Teixeira, Sara C. Madeira, Sara C. Madeira
Issue Date:January 2010
pp. 153-165
Although most biclustering formulations are NP-hard, in time series expression data analysis, it is reasonable to restrict the problem to the identification of maximal biclusters with contiguous columns, which correspond to coherent expression patterns sha...
Learning hand-eye coordination for a humanoid robot using SOMs
Found in: Proceedings of the 2014 ACM/IEEE international conference on Human-robot interaction (HRI '14)
By Guido Schillaci, Ivana Kajić, Saša Bodiroža, Verena V. Hafner
Issue Date:March 2014
pp. 192-193
Hand-eye coordination is an important motor skill acquired in infancy which precedes pointing behavior. Pointing facilitates social interactions by directing attention of engaged participants. It is thus essential for the natural flow of human-robot intera...
Human-robot interaction through 3D vision and force control
Found in: Proceedings of the 2014 ACM/IEEE international conference on Human-robot interaction (HRI '14)
By Aleksandar Jevtić, Guillaume Doisy, Saša Bodiroža, Verena V. Hafner, Yael Edan
Issue Date:March 2014
pp. 102-102
The video shows the interaction with a customized Kompa\"{i} robot. The robot consists of the Robosoft's robuLAB10 platform, tablet PC, and a Microsoft Kinect camera mounted on a pan-tilt system. A visual control algorithm provides continuous person tracki...
Prescriptive Analytics System for Improving Research Power
Found in: 2013 IEEE 16th International Conference on Computational Science and Engineering (CSE)
By Sa-Kwang Song,Donald J. Kim,Myunggwon Hwang,Jangwon Kim,Do-Heon Jeong,Seungwoo Lee,Hanmin Jung,Wonkyung Sung
Issue Date:December 2013
pp. 1144-1145
We introduce a prescriptive analytics system, InSciTe advisory, to provide researchers with advice of their future research direction and strategy. The system analyzes several thousands of heterogeneous types of data sources such as papers, patents, report...
Dynamic frequency scaling on android platforms for energy consumption reduction
Found in: Proceedings of the 8th ACM workshop on Performance monitoring and measurement of heterogeneous wireless and wired networks (PM2HW2N '13)
By Clauirton A. Siebra, Fabio Q.B. da Silva, Giovane Boaviagem Ribeiro, Leandro A.B. Araujo, Pamela Thays Bezerra, Paulo H.R. Costa, Abel Guilhermino Silva-Filho, Andre L.M. Santos, Angelica Mascaro, Antonio Correia de Sa Barreto Neto
Issue Date:November 2013
pp. 189-196
Dynamic Voltage and Frequency Scaling (DVFS) is an efficient energy saving technique for processing units. This paper evaluates the impact of the DVFS on the energy consumption, when it is applied to adjust the operational frequency of an Android based sma...
Intelligent Research Performance Appraisal Model Based on Internal/Environmental Evaluation Features
Found in: 2013 International Conference on Social Computing (SocialCom)
By Donald J. Kim,Myunggwon Hwang,Jangwon Gim,Sa-Kwang Song,Do-Heon Jeong,Seungwoo Lee,Hanmin Jung
Issue Date:September 2013
pp. 1059-1065
Analysis, prediction, and recommendation of information about experts are very important tasks for future research planning and strategy establishment. However, it takes much time and efforts even for precise analysis of experts because we need to analyze ...
MOEA/D assisted by rbf networks for expensive multi-objective optimization problems
Found in: Proceeding of the fifteenth annual conference on Genetic and evolutionary computation conference (GECCO '13)
By Carlos A. Coello Coello, Saúl Zapotecas Martínez
Issue Date:July 2013
pp. 1405-1412
The development of multi-objective evolutionary algorithms assisted by surrogate models has increased in the last few years. However, in real-world applications, the high modality and dimensionality that functions have, often causes problems to such models...
Discovering keys in RDF/OWL dataset with KD2R
Found in: Proceedings of the 2nd International Workshop on Open Data (WOD '13)
By Danai Symeonidou, Fatiha Saïs, Nathalie Pernelle
Issue Date:June 2013
pp. 1-2
KD2R allows the automatic discovery of composite key constraints in RDF data sources that conform to a given ontology. We consider data sources for which the Unique Name Assumption is fulfilled. KD2R allows this discovery without having to scan all the dat...
N2R-part: identity link discovery using partially aligned ontologies
Found in: Proceedings of the 2nd International Workshop on Open Data (WOD '13)
By Brigitte Safar, Fatiha Saïs, Maria Koutraki, Nathalie Pernelle, Tushar Ghosh
Issue Date:June 2013
pp. 1-4
Thanks to the initiative of Linked Open Data, the RDF datasets that are published on the Web are more and more numerous. One active research field currently concerns the problem of finding links between entities. We focus in this paper on ontology-based da...
Mobile advertising: evaluating the effects of animation, user and content relevance
Found in: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '13)
By Elizabeth F. Churchill, Marco de Sa, Vidhya Navalpakkam
Issue Date:April 2013
pp. 2487-2496
The potential for user-relevant, context-appropriate, targeted advertising on mobile devices is enormous given device improvements and advances in personal and location-based data collection. However, little is known about how users experience display adve...
SINDI-WALKS: Workbench for PLOT-based Technological Information Extraction and Management
Found in: 2012 IEEE International Conference on Green Computing and Communications (GreenCom)
By Sung-Pil Choi,Hong-Woo Chun,Chang-Hoo Jeong,Sa-Kwang Song,Hanmin Jung
Issue Date:November 2012
pp. 712-716
This paper introduces a workbench called SINDI-WALKS capable of extracting inherent valuable information from scientific literatures such as articles and patents. The system identifies PLOTs, Person, Location, Organization and Terms and extracts the semant...
Horizontal Search Method for Wikipedia Category Grouping
Found in: 2012 IEEE International Conference on Green Computing and Communications (GreenCom)
By Myunggwon Hwang,Donald J. Kim,Do-Heon Jeong,Sa-Kwang Song,Hanmin Jung,Hoon Ko
Issue Date:November 2012
pp. 717-721
Category hierarchies, which show the basic relationship between concepts, are utilized as fundamental clues for semantic information processing in diverse research fields. These research works have employed Wikipedia due to its high coverage of real-world ...
On the Effectiveness of End-to-End Security for Internet-Integrated Sensing Applications
Found in: 2012 IEEE International Conference on Green Computing and Communications (GreenCom)
By Jorge Granjal,Edmundo Monteiro,Jorge Sa Silva
Issue Date:November 2012
pp. 87-93
While realizing that most of the applications currently envisioned for the Internet of Things (IoT) are critical in respect to security, we may expect that such sensing applications may benefit from the availability of end-to-end IPv6 communications with I...
An interactive control strategy is more robust to non-optimal classification boundaries
Found in: Proceedings of the 14th ACM international conference on Multimodal interaction (ICMI '12)
By Virginia R. de Sa
Issue Date:October 2012
pp. 579-586
We consider a new paradigm for EEG-based brain computer interface (BCI) cursor control involving signaling satisfaction or dissatisfaction with the current motion direction instead of the usual direct control of signaling rightward or leftward desired moti...
On the feasibility of secure application-layer communications on the Web of Things
Found in: 2012 IEEE 37th Conference on Local Computer Networks (LCN 2012)
By Jorge Granjal,Edmundo Monteiro,Jorge Sa Silva
Issue Date:October 2012
pp. 228-231
The availability of inexpensive sensing devices capable of wireless communications enables the design of exciting and new distributed sensing applications. The integration of such applications with the Internet will contribute to materialize a vision of a ...
Semantic analysis of human movements in videos
Found in: Proceedings of the 8th International Conference on Semantic Systems (I-SEMANTICS '12)
By Pierre Manneback, Saïd Mahmoudi, Sawsan Saad
Issue Date:September 2012
pp. 141-148
Segmentation and representation of movements in videos play an important role in different applications such as search engines, video recommender systems, and video summarizers. In this paper, we present a system for semantic annotation of movements in vid...
Collaborative Risk Management in Software Projects
Found in: 2012 Eighth International Conference on the Quality of Information and Communications Technology (QUATIC)
By Pedro Sa Silva,Antonio Trigo,Joao Varajao
Issue Date:September 2012
pp. 157-160
Risk Management in software projects has been increasingly its importance and value, being pointed as an important basis of project success. However, many projects are still carried out without giving importance to this knowledge area. This work discusses ...
Explicit relevance models in intent-oriented information retrieval diversification
Found in: Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval (SIGIR '12)
By David Vallet, Pablo Castells, Saúl Vargas
Issue Date:August 2012
pp. 75-84
The intent-oriented search diversification methods developed in the field so far tend to build on generative views of the retrieval system to be diversified. Core algorithm components in particular redundancy assessment are expressed in terms of the probab...
An efficient DoG based fingerprint enhancement scheme
Found in: Proceedings of the International Conference on Advances in Computing, Communications and Informatics (ICACCI '12)
By Pankaj K. Sa, Sambit Bakshi, Shila Samantaray
Issue Date:August 2012
pp. 547-550
This paper focuses on fingerprint image enhancement techniques through histogram equalization applied locally on the degraded image. The proposed work is based on the Laplacian pyramid framework that decomposes the input image into a number of band-pass im...
A framework for cognitive radio wireless sensor networks
Found in: 2012 IEEE Symposium on Computers and Communications (ISCC)
By Luiz H. A. Correia,Erasmo E. Oliveira,Daniel F. Macedo,Pedro M. Moura,Antonio A. F. Loureiro,Jorge Sa Silva
Issue Date:July 2012
pp. 000611-000616
The growth of mobile computing has increased the demand for wireless communication, causing a higher demand for the wireless medium as well as spectrum pollution. Smart radios, also called cognitive radios, monitor the network to identify the best availabl...
Similarity Measurement between Objects and Activities for User Intention Modeling
Found in: 2012 Sixth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS)
By Myunggwon Hwang,Sa-Kwang Song,Do-Heon Jeong,Hanmin Jung,Jinhyung Kim
Issue Date:July 2012
pp. 103-107
User intention modeling is a core part to provide appropriate services in ubiquitous and pervasive computing. And the modeling should be concentrated on preparing user activities according to objects which user approaches or touches. In other works, they j...
Brandmap: An Information Visualization Platform for Brand Association in Blogosphere
Found in: 2012 16th International Conference on Information Visualisation (IV)
By Amadeu Sa de_Campos Filho,Fred Freitas,Alex Sandro Gomes,Jairson Vitorino
Issue Date:July 2012
pp. 316-320
Word-of-mouth in the Internet is rapidly increasing, but the dissemination of this information is sometime difficult to interpret. This paper presents a visualisation platform (BrandMap). It was used to structure data of brand association distribution in t...
CT Image Management and Communication Services
Found in: 2012 Annual SRII Global Conference (SRII)
By Kanda Runapongsa Saikaew,Nantachai Jirandorn,Nuntapon Juntaranon,Supree Ariyadech,Vera Sa-Ing,Wasan Pattara-Atikom,Saowapak S. Thongvigitmanee
Issue Date:July 2012
pp. 660-666
Nowadays computed tomography (CT) becomes very popular and useful in both medical and dental areas. Due to the standard DICOM (Digital Imaging and Communications in Medicine) file format of CT images containing special headers of image, patient and device ...
A framework for Wireless Sensor Networks performance monitoring
Found in: 2012 IEEE Thirteenth International Symposium on
By Vasco Pereira,Jorge Sa Silva,Edmundo Monteiro
Issue Date:June 2012
pp. 1-7
A new generation of Wireless Sensor Networks (WSNs) is expanding to performance critical environments. In these new scenarios, performance must be monitored and effectively measured, in order to guarantee that the network fulfills initial expectations. How...
Hermes: A versatile platform for wireless embedded systems
Found in: 2012 IEEE Thirteenth International Symposium on
By Andre Rodrigues,Tiago Camilo,Jorge Sa Silva,Fernando Boavida,Miguel Silva,Nelson Blanco,Jose Pedro,Joao Martins
Issue Date:June 2012
pp. 1-9
This paper presents Hermes, a new modular platform that can be used in a variety of scenarios, including the role of body area network coordinator, enabling temperature, movement and heartbeat sensing, local and remote communication, and indoor and outdoor...
Therapy: location-aware assessment and tasks
Found in: Proceedings of the 3rd Augmented Human International Conference (AH '12)
By Luis Carrico, Luis Duarte, Marco de Sa, Tiago Antunes
Issue Date:March 2012
pp. 1-5
In this paper, we present a system that allows therapists to assess and engage patients' in activities triggered by specific stressing contexts. The system is composed by: 1) a web application that the therapist uses to specify the activities and its trigg...
Classification rule learning for data linking
Found in: Proceedings of the 2012 Joint EDBT/ICDT Workshops (EDBT-ICDT '12)
By Fatiha Saïs, Nathalie Pernelle
Issue Date:March 2012
pp. 136-139
Many approaches have been defined to link data items automatically. Nevertheless, when data are numerous and when the schema is unknown, most of these approaches are too time-consuming. We propose an approach where classification rules are learnt thanks to...
Local experts and online review sites
Found in: Proceedings of the ACM 2012 conference on Computer Supported Cooperative Work Companion (CSCW '12)
By Elizabeth F. Churchill, Judd Antin, Marco de Sa
Issue Date:February 2012
pp. 55-58
Sites such as Yelp and Yahoo! Local provide a valuable source of knowledge about both new and familiar places. However, they represent an indirect source of local knowledge. Many are likely to prefer learning from the people who know their neighborhoods be...
iHorse -- A WSN-based equine monitoring system
Found in: Local Computer Networks, Annual IEEE Conference on
By Andre Rodrigues,Jorge Sa Silva,Fernando Boavida,Tiago Camilo
Issue Date:October 2011
pp. 1024-1031
Horses played a key role in the history of mankind, having been instrumental in the rise and fall of great empires. In modern days, they are still very important assets, from economical, operational or even sentimental points of view. Their importance is, ...
Bench4Q: A QoS-Oriented E-Commerce Benchmark
Found in: Computer Software and Applications Conference, Annual International
By Wenbo Zhang,Sa Wang,Wei Wang,Hua Zhong
Issue Date:July 2011
pp. 38-47
E-commerce systems are typically QoS-sensitive, so QoS-oriented tunings of e-commerce servers are very important for such systems. However, existing e-commerce benchmarks are insufficient for supporting QoS-oriented tunings, because some critical QoS featu...
Collaborative Filtering Recommendation Algorithm Based on Cloud Model Clustering of Multi-indicators Item Evaluation
Found in: Business Computing and Global Informatization, International Conference on
By Li Sa
Issue Date:July 2011
pp. 645-648
Collaborative filtering recommendation algorithm is a personalized recommendation algorithm that is used widely in e-commerce recommendation system. In this paper, a collaborative filtering recomendation algorithm based on cloud model clustering of multi-i...
Mobility in WSNs for critical applications
Found in: Computers and Communications, IEEE Symposium on
By R. Silva,Z. Zinonos,Jorge Sa Silva,V. Vassiliou
Issue Date:July 2011
pp. 451-456
Recent critical application sectors of sensor networks like military, health care, and industry require the use of mobile sensor nodes, something that poses unique challenges in aspects like handoff delay, packet loss, and reliability. In this paper we pro...
Application of CAD/CAE Integrating Technology for the Three-Dimensional Design of Hydropower Industry
Found in: Computer and Information Science, ACIS International Conference on
By Lei Yan,Sherong Zhang,Wenqi Sa,Bo Sun,Chao Wang
Issue Date:May 2011
pp. 315-320
As the two most important technology in three-dimensional design, CAD and CAE are widely applied in hydropower industry, and they play a tremendous role in the development of hydropower industry. Compared with other industries, the present application of b...
A Self-Manageable Group Communication Protocol for Partially Synchronous Distributed Systems
Found in: Dependable Computing, Latin-American Symposium on
By Raimundo José de Araújo MacÊdo, Allan Edgard Silva Freitas, Alírio Santos de Sá
Issue Date:April 2011
pp. 146-155
In order to provide upper-layer applications with continuous message delivery and updated information on membership changes - due to process failures, leaves and joins -, group communication protocols must exchange messages and continuously monitor all gro...
Simulation Technology for Enhanced Learning: VAT Simulator for Portuguese Accounting Students
Found in: Computer Modeling and Simulation, International Conference on
By Pedro Sá Silva, António Trigo, João Varajão
Issue Date:April 2011
pp. 355-359
This paper describes the VAT Simulator, a simulator that mimics the Portuguese official VAT form application. According to the Portuguese law, every month or quarters, each certified accountant should send VAT information of the companies of its responsibi...
Persistent state pattern
Found in: Proceedings of the 17th Conference on Pattern Languages of Programs (PLOP '10)
By André V. Saúde, Gabriel C. A. Coutinho, Ricardo A. S. S. Victório
Issue Date:October 2010
pp. 1-16
Finite State Machines (FSM) provide a powerful way to describe dynamic behavior of systems and components. Implementations of FSM in Object-Oriented (OO) languages have been widely studied since the classical State Pattern has been introduced. Various desi...
Towards a Game Use Specification Pattern for Learning Activities
Found in: Sistemas Colaborativos, Simpósio Brasilerio de
By Eveline de J.V. Sá, Jeane S.F. Teixeira, Clovis Torres Fernandes
Issue Date:October 2010
pp. 126-132
Cooperative activities, when providing planned interaction among learners, can be used to engage and support meaningful learning. The use of games, besides making the learning experience a richer and more stimulating process, can supply the learner, with a...
Modeling and Simulating of Ecological Community in Digital Creative Industry
Found in: Intelligent Information Technology and Security Informatics, International Symposium on
By Xiaojun Ma, Sa Li, Weihui Dai
Issue Date:April 2010
pp. 708-712
Digital creative industry has exhibited the expansive potential in future’s economy. Its organizational pattern and inherent mechanism as well as the industrial environment are urgently expected to be explored for the promotion on its development. From the...
State Space Modeling of Thermal Actuators Based on Peltier Cells for Indirect Measurements and Optimal Control
Found in: Computer Modeling and Simulation, International Conference on
By João Viana F. Neto, Denis Fabricio Sousa de Sá, Leandro Rocha Lopes
Issue Date:March 2010
pp. 392-397
The importance of state space model for indirect measurements systems (IMS) can be highlighted for several operational situations, such as: sensor cost and the inference of sensors in the real world process. The IMS approach can be supported by the theorie...
Data Allocation in Distributed Data Base in the Network Using Modularization Algorithm
Found in: Computer Modeling and Simulation, International Conference on
By Rezvam Mahmoudie, Sa Eed Parsa
Issue Date:March 2010
pp. 503-508
ABSTRACT— Data allocation issue is one of the significant and essential discussions in distributed data base systems. In these systems, operators are located in different places and have to get access to a joint data base. These data have been distributed ...
Exploring HTML Tags and Metadata to Improve the Expressiveness of Web Search Engine's Queries
Found in: Computer and Electrical Engineering, International Conference on
By Nuno Filipe Fonseca Vasconcelos Escudeiro, Paula Maria de Sa Oliveira Escudeiro
Issue Date:December 2009
pp. 569-573
Web search engines are powerful tools used to satisfy specific information needs on the web. Their purpose is to maximize user satisfaction when performing this task. Although there are other sources of evidence, besides text, to characterize document rele...
A comparison of approaches to node and service discovery in 6lowPAN wireless sensor networks
Found in: Proceedings of the 5th ACM symposium on QoS and security for wireless and mobile networks (Q2SWinet '09)
By Claudio Geyer, Fernando Boavida, Joel Rodrigues, Jorge Sa Silva, Ricardo Silva, Valderi R.Q. Leithardt
Issue Date:October 2009
pp. 44-49
Discovering nodes and services in Wireless Sensor Networks poses several challenges. Different sink and sensor nodes announcement strategies lead to different amounts of resource consumption in terms of processing, memory, communication time and drained en...
A Hedonic Pricing Mechanism in Grid Based on Dynamic Alliance
Found in: Grid and Cloud Computing, International Conference on
By XiaoHua Li, XianGang Zhao, YuJie Wang, RenLong Zhang, Sa Liu
Issue Date:August 2009
pp. 373-376
In the market-oriented grid system, price management is one of the key issues. This paper proposes a hedonic pricing mechanism based on dynamic alliance to calculate the guiding prices for Grid resources. Hedonic Pricing Method is widely applied in price m...
Image Classification to Improve Printing Quality of Mixed-Type Documents
Found in: Document Analysis and Recognition, International Conference on
By Rafael Dueire Lins, Gabriel Pereira e Silva, Steven J. Simske, Jian Fan, Mark Shaw, Paulo Sá, Marcelo Thielo
Issue Date:July 2009
pp. 1106-1110
Functional image classification is the assignment of different image types to separate classes to optimize their rendering for reading or other specific end task, and is an important area of research in the publishing and multi-Average industries. This pap...
SOA-Based Integration of the Internet of Things in Enterprise Services
Found in: Web Services, IEEE International Conference on
By Patrik Spiess, Stamatis Karnouskos, Dominique Guinard, Domnic Savio, Oliver Baecker, Luciana Moreira Sá de Souza, Vlad Trifa
Issue Date:July 2009
pp. 968-975
Advances in the areas of embedded systems, computing, and networking are leading to an infrastructure composed of millions of heterogeneous devices. These devices will not simply convey information but process it in transit, connect peer to peer, and form ...
The Study of Teaching Reform Project Pool Management System in Applied College
Found in: Computational Intelligence and Natural Computing, International Conference on
By Chao Wang, Xin Fang, Sa Yang, Biao Huang
Issue Date:June 2009
pp. 313-315
The reasons of applying for teaching reform projects and the current situation are introduced in this paper, the teaching reform project pool management system is given and the operation methods with operation rules are analyzed which are helpful to improv...
Tackling collaborative-design of mobile prototypes
Found in: International Conference on Computer Supported Cooperative Work in Design
By Luis Carrico, Luis Duarte, Marco de Sa, Rogerio Bandeira, Pedro Antunes
Issue Date:April 2009
pp. 710-715
This paper presents an application for collaborative design of mobile prototypes, covering both prototyping and evaluation stages of design. Virtual design workspaces provide designers with the necessary mechanisms to build and test prototypes. Shared vers...
CPLD-based optimal control for wireless remote control pruning machine
Found in: International Conference on Computer Supported Cooperative Work in Design
By Junmei Zhang, Wenbin Li, Chao Sa, Deming Wang, Dongxu Cui
Issue Date:April 2009
pp. 374-377
This paper analyzes the optimal control of the wireless remote control pruning machine based on complex programmable logic device (CPLD). The power control circuit and the safety control circuit are all designed and analyzed. The appropriate choice of elec...
An Implicit Finite Difference Scheme with Preconditioning for Convection Dominated Diffusion Equation
Found in: Computational Sciences and Optimization, International Joint Conference on
By Lunji Song, Yujiang Wu, Yang Wang, Sa Xie
Issue Date:April 2009
pp. 641-644
An implicit finite difference scheme for solving time-dependent convection dominated diffusion equations in two space variables is presented. A one-sided difference approximation is used for the convection terms and a second-order central difference approx...
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