Aiming at developing asynchronous BCIs, we tested 21 2-class combinations of 7 mental tasks to determine whether any pair of tasks may be more suitable. the tasks under consideration were: auditory recall, mental navi...
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Aiming at developing asynchronous BCIs, we tested 21 2-class combinations of 7 mental tasks to determine whether any pair of tasks may be more suitable. the tasks under consideration were: auditory recall, mental navigation, sensorimotor attention (left hand), sensorimotor attention (right hand), mental calculation, imaginary movement (left hand), imaginary movement (right hand). Sensorimotor attention is novel in this application domain. All possible pairs were tried in 5 subjects using data from 10s periods in which subjects were free to execute the required mental task at their own pace. Recordings were done whilst the subject controlled a robot navigation simulator on a computer monitor, withthe robot direction being related to the mental task. Classification of the data was done using LDA. Class-separation was estimated using the Davies-Bouldin index. Best classification results were obtained when auditory recall was followed or preceded by mental calculation. Of the possible 21 task combinations, this task pair was in the top 5 (performance-wise) for 4 of the 5 subjects. this was also the case when class-separation was used as a criterion.
the International conference on Conceptual Modeling (ER) series is an annual forum for exploring research, development, novel applications and industrial innovations in the area of conceptual modelling. the 26th editi...
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ISBN:
(纸本)9781920682644
the International conference on Conceptual Modeling (ER) series is an annual forum for exploring research, development, novel applications and industrial innovations in the area of conceptual modelling. the 26th edition of this conference (ER 2007) was held in Auckland, New Zealand from November 5 to 9, 2007. this volume contains the tutorials, panels, posters and software demonstrations that were presented at ER 2007. On behalf of the programme committee we commend these papers to you and hope you find them useful.
Conceptual modelling is fundamental to the development of complex systems, because it provides the key means of communication between systems developers, end-users and customers. Conceptual modelling provides languages, methods and tools to understand and represent the application domain; to elicit, conceptualise and formalise system requirements and user needs; to communicate systems designs to all stake-holders; to formally verify and validate system designs at a highlevel of abstraction; and to minimise ambiguities in system development. Initially, conceptual modeling mainly addressed data-intensive information systems and contributed to data modelling and database application engineering. the area of conceptual modeling has now matured to encompass all kinds of application areas such as e-applications (including e-business and e-learning), web-based systems (including the semantic web and ubiquitous systems), life sciences and geographic applications.
High-quality tutorials are a long-standing tradition of the ER conferences. they complement the depth-oriented accepted paper sessions and keynote talks by providing conference participants with broad overviews of emerging fields or clear syntheses of results in existing fields. For ER 2007, we invited Olga De Troyer, Frederic Kleinermann, Bram Pellens, and Wesley Bille (Vrije Universiteit Brussel), Martin Doerr, Christian-Emil Ore, and Stephen Stead (FORth), Dirk Langemann (University of
Roles' playing is common in our lives. We play different roles with our family, at work as well as in other environments. Role allocation in software development projects is also accepted though it may be implemen...
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Roles' playing is common in our lives. We play different roles with our family, at work as well as in other environments. Role allocation in software development projects is also accepted though it may be implemented differently by different software development methods. In a previous work [Y. Dubinsky, O. Hazzan, Roles in agile software development teams, in: 5th International conference on Extreme Programming and Agile Processes in softwareengineering, 2004, pp. 157-165] we have found that personal roles may raise teammates' personal accountability while maintaining the essence of the software development method. In this paper we present our role scheme, elaborate on its implementation and explain how it can be used to derive metrics. We illustrate our ideas by data gathered in student projects in the university. (C) 2006 Elsevier B.V. All rights reserved.
systems are the most complicated entities and phenomena in the physical, information, and social worlds across all science and engineering disciplines. this paper presents a mathematical theory of system algebra and i...
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this work presents an intelligent automatic fingerprint identification and verification system based on artificial neural networks. In this work, the design processes of the system have been presented step by step. In...
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the management and protection of intellectual property rights and information security is one of the main elements of the outsourcing industry. However, based on the actual situation at present, even with advanced sec...
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this study tests a model that proposes that design elements of the e-store create environmental atmospheric that induce certain emotional states in the consumer, which in turn affect his/her attitudes towards the stor...
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ISBN:
(纸本)9197507954
this study tests a model that proposes that design elements of the e-store create environmental atmospheric that induce certain emotional states in the consumer, which in turn affect his/her attitudes towards the store. the model is based on concepts from the human-computer interaction (HCI) literature and on the environmental psychology model of Mehrabian and Russell (1974). the atmospherics of the e-store is captured in our model by perceptions of two design dimensions: usability and aesthetics. the results support the model propositions by showing a significant effect of site atmospherics on the emotions experienced during the shopping episode and, consequently, on attitudes towards the store. the study contributes to the development of a richer and more adequate model of consumer behavior in online shopping, by merging HCI and marketing theories, and by taking into account the effects of design on emotions.
Real-Time Process Algebra (RTPA) is an expressive mathematical means for describing cognitive behaviors and processes of human beings and softwaresystems. this paper presents the strategies and patterns for transform...
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Hardware-software co-synthesis of embedded computersystems involves the partitioning of a system specification into hardware and software modules to meet various system requirements. High-performance embedded compute...
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ISBN:
(纸本)9781424400379
Hardware-software co-synthesis of embedded computersystems involves the partitioning of a system specification into hardware and software modules to meet various system requirements. High-performance embedded computers typically incorporate heterogeneous multiple processing elements. In this paper, we present an approach to co-synthesis of high performance embedded systems targeting fault tolerant topologies. Our approach supports the following features: 1) input in the form of an acyclic periodic task graph with real-time constraints, 2) pipelining of task graphs, 3) use of a heterogeneous set of processing elements, 4) fault tolerance by a newly developed group based fault tolerance technique. We attempt to minimize the communication overhead while preserving regular topology computersystems.
the complexities of softwaresystems are more prominent now than ever, due to progression of simple software applications to large integrated systems, either centralized or distributed. the challenges to software engi...
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ISBN:
(纸本)9781424400379
the complexities of softwaresystems are more prominent now than ever, due to progression of simple software applications to large integrated systems, either centralized or distributed. the challenges to software engineer somehow to understand and manage such large softwaresystems and deal withsoftware cognitive complexities. Although there are research areas such as human machine interface or human factor engineering, there is still little research on how to quantitatively measure and analyze human cognitive complexities in comprehending and understanding complex softwaresystems. this paper studies human interaction withsoftware programs in the cognitive perspective on software complexity. Based on the findings, a pilot software cognitive complexity measurement and analyses tool (CCMAT) is presented.
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