15 research outputs found

    Cognitive Maps

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    Fifth Annual Workshop on Space Operations Applications and Research (SOAR 1991), volume 2

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    Papers given at the Space Operations and Applications Symposium, host by the NASA Johnson Space Center on July 9-11, 1991 are given. The technical areas covered included intelligent systems, automation and robotics, human factors and life sciences, and environmental interactions

    Enhanced Living Environments

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    This open access book was prepared as a Final Publication of the COST Action IC1303 “Algorithms, Architectures and Platforms for Enhanced Living Environments (AAPELE)”. The concept of Enhanced Living Environments (ELE) refers to the area of Ambient Assisted Living (AAL) that is more related with Information and Communication Technologies (ICT). Effective ELE solutions require appropriate ICT algorithms, architectures, platforms, and systems, having in view the advance of science and technology in this area and the development of new and innovative solutions that can provide improvements in the quality of life for people in their homes and can reduce the financial burden on the budgets of the healthcare providers. The aim of this book is to become a state-of-the-art reference, discussing progress made, as well as prompting future directions on theories, practices, standards, and strategies related to the ELE area. The book contains 12 chapters and can serve as a valuable reference for undergraduate students, post-graduate students, educators, faculty members, researchers, engineers, medical doctors, healthcare organizations, insurance companies, and research strategists working in this area

    Neuroinformatics in Functional Neuroimaging

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    This Ph.D. thesis proposes methods for information retrieval in functional neuroimaging through automatic computerized authority identification, and searching and cleaning in a neuroscience database. Authorities are found through cocitation analysis of the citation pattern among scientific articles. Based on data from a single scientific journal it is shown that multivariate analyses are able to determine group structure that is interpretable as particular “known ” subgroups in functional neuroimaging. Methods for text analysis are suggested that use a combination of content and links, in the form of the terms in scientific documents and scientific citations, respectively. These included context sensitive author ranking and automatic labeling of axes and groups in connection with multivariate analyses of link data. Talairach foci from the BrainMap ℱ database are modeled with conditional probability density models useful for exploratory functional volumes modeling. A further application is shown with conditional outlier detection where abnormal entries in the BrainMap ℱ database are spotted using kernel density modeling and the redundancy between anatomical labels and spatial Talairach coordinates. This represents a combination of simple term and spatial modeling. The specific outliers that were found in the BrainMap ℱ database constituted among others: Entry errors, errors in the article and unusual terminology

    Factors Influencing Customer Satisfaction towards E-shopping in Malaysia

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    Online shopping or e-shopping has changed the world of business and quite a few people have decided to work with these features. What their primary concerns precisely and the responses from the globalisation are the competency of incorporation while doing their businesses. E-shopping has also increased substantially in Malaysia in recent years. The rapid increase in the e-commerce industry in Malaysia has created the demand to emphasize on how to increase customer satisfaction while operating in the e-retailing environment. It is very important that customers are satisfied with the website, or else, they would not return. Therefore, a crucial fact to look into is that companies must ensure that their customers are satisfied with their purchases that are really essential from the ecommerce’s point of view. With is in mind, this study aimed at investigating customer satisfaction towards e-shopping in Malaysia. A total of 400 questionnaires were distributed among students randomly selected from various public and private universities located within Klang valley area. Total 369 questionnaires were returned, out of which 341 questionnaires were found usable for further analysis. Finally, SEM was employed to test the hypotheses. This study found that customer satisfaction towards e-shopping in Malaysia is to a great extent influenced by ease of use, trust, design of the website, online security and e-service quality. Finally, recommendations and future study direction is provided. Keywords: E-shopping, Customer satisfaction, Trust, Online security, E-service quality, Malaysia

    Knowledge and Management Models for Sustainable Growth

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    In the last years sustainability has become a topic of global concern and a key issue in the strategic agenda of both business organizations and public authorities and organisations. Significant changes in business landscape, the emergence of new technology, including social media, the pressure of new social concerns, have called into question established conceptualizations of competitiveness, wealth creation and growth. New and unaddressed set of issues regarding how private and public organisations manage and invest their resources to create sustainable value have brought to light. In particular the increasing focus on environmental and social themes has suggested new dimensions to be taken into account in the value creation dynamics, both at organisations and communities level. For companies the need of integrating corporate social and environmental responsibility issues into strategy and daily business operations, pose profound challenges, which, in turn, involve numerous processes and complex decisions influenced by many stakeholders. Facing these challenges calls for the creation, use and exploitation of new knowledge as well as the development of proper management models, approaches and tools aimed to contribute to the development and realization of environmentally and socially sustainable business strategies and practices

    Annual Report of the University, 1992-1993, Volumes 1-4

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    SIGNIFICANT DEVELOPMENTS Preparation, approval by President Peck, delivery to NMCHE of UNM\u27s response to House Memorials 38 and 25 (on minorities and women). Development and packaging of a presentation on minorities at UNM to Hispanic community people and organizations. Renewal of faculty instructional workload report and other information for use by President Peck and others in the President\u27s Council in testimony to the legislature on accountability by faculty. Significant workload and contributions to WICHE\u27s Diversity Project: - responses to long questionnaire - projected demographics - substitution for O. Forbes on planning for diversity Reprogramming of obsolete computer program of the University of Southern California\u27s Faculty Planning Model. Work remains incomplete. Support and staff work for University Planning Council, Faculty Senate Long Range Planning Committee, Senate President, Senate Budget Committee, Student Learning Outcomes Assessment Committee, Admissions and Registration Committee, Staff Council; Graduate Petition and grade Review Subcommittee Service to NMCHE\u27s Outcomes Assessment Advisory Group; NMCHE\u27s review group on diversity plans Service on Albuquerque Business/Education Compact Conducted several special data analyses to provide user outcome information for the Center for Academic Program Support (CAPS). Wrote reports to summarize analyses. Served in an advisory capacity to VP Zuniga Forbes for the two surveys (Campus Climate for Diversity, ACT Student Opinion Survey) and helped to draw the sample for the ACT survey. Conducted secondary analyses and prepared report of all analyses of the Freshman Survey (CIRP) for VP Zuniga Forbes. Gave presentation of CIRP findings to the Regents Subcommittee on Student Affairs. Conducted secondary analyses and prepared report of all analyses of the Campus Climate for Diversity Survey for VP Zuniga Forbes

    Étude de corrĂ©lats Ă©lectrophysiologiques pour la discrimination d'Ă©tats de fatigue et de charge mentale : apports pour les interfaces cerveau-machine passives

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    Mental state estimation on the basis of cerebral activity and its resulting physiological activities has become a challenge for passive Brain-Computer Interfaces (BCI), in particular to address a need in neuroergonomics. This thesis work focuses on mental fatigue and workload estimation. Its purpose is to provide efficient and realistic processing chains. Thus, one issue was the modulation of workload markers as well as classification performance robustness depending on time-on-task (TOT). The impact of workload and TOT on attentional state markers was also assessed. For those purposes, an experimental protocol was implemented to collect the electroencephalographic (EEG), cardiac (ECG) and ocular (EOG) signals from healthy volunteers as they performed for a prolonged period of time a task that mixes working memory load and selective attention. Efficient signal processing chains that include spatial filtering and classification steps were designed in order to better estimate these mental states. The relevance of several electrophysiological markers was compared, among which spontaneous EEG activity and event-related potentials (ERPs), as well as various preprocessing steps such as spatial filtering methods for ERPs. Interaction effects between mental states were brought to light. In particular, TOT negatively impacted mental workload estimation when using power features. However, the chain based on ERPs was robust to this effect. A comparison of the type of stimuli that can be used to elicit the ERPs revealed that task-independent probes still allow very high performance, which shows their relevance for real-life implementation. Lastly, ongoing work that aims at assessing task-robust workload markers, as well as the usefulness of auditory ERPs in a single-stimulus paradigm will be presented as prospects.L'estimation de l'Ă©tat mental d'un individu sur la base de son activitĂ© cĂ©rĂ©brale et de ses activitĂ©s physiologiques rĂ©sultantes est devenue l'un des challenges des interfaces cerveau-machine (ICM) dites passives, dans le but notamment de rĂ©pondre Ă  un besoin en neuroergonomie. Ce travail de thĂšse se focalise sur l'estimation des Ă©tats de fatigue et de charge mentale. Son objectif est de proposer des chaines de traitement efficaces et rĂ©alistes dans leur mise en Ɠuvre. Ainsi, un des points Ă  l'Ă©tude a Ă©tĂ© la modulation des indicateurs de charge ainsi que la robustesse des performances de classification en fonction du temps passĂ© sur une tĂąche (TPT). L'impact de la charge et du TPT sur les marqueurs d'Ă©tat attentionnel a aussi Ă©tĂ© Ă©valuĂ©. Pour ce faire, un protocole expĂ©rimental a Ă©tĂ© mis en Ɠuvre afin de recueillir les signaux Ă©lectro-encĂ©phalographiques (EEG), cardiaques (ECG) et oculaires (EOG) de participants volontaires sains lors de la rĂ©alisation prolongĂ©e d'une tĂąche combinant charge en mĂ©moire de travail et attention sĂ©lective. Des chaĂźnes de traitement performantes incluant une Ă©tape de filtrage spatial et une classification supervisĂ©e ont Ă©tĂ© mises en place afin de classer au mieux ces Ă©tats. La pertinence de plusieurs marqueurs Ă©lectrophysiologiques a Ă©tĂ© comparĂ©e, notamment l'activitĂ© EEG spontanĂ©e et les potentiels Ă©voquĂ©s (PEs), ainsi que diffĂ©rentes Ă©tapes de prĂ©traitement dont les mĂ©thodes de filtrage spatial pour PEs. Des effets d'interactions ont Ă©tĂ© mis au jour entre les diffĂ©rents Ă©tats mentaux, dont un effet nĂ©gatif du TPT sur les performances en classification de la charge mentale lorsque l'on utilise des marqueurs mesurant la puissance moyenne de l'EEG dans des bandes de frĂ©quence d'intĂ©rĂȘt. La chaĂźne basĂ©e sur les PEs est en revanche robuste Ă  cet effet. Une comparaison du type de stimuli utilisables pour Ă©liciter les PEs a rĂ©vĂ©lĂ© que des stimuli tĂąche-indĂ©pendants permettent tout de mĂȘme d'obtenir des performances trĂšs Ă©levĂ©es, ce qui montre leur pertinence pour une implĂ©mentation en situation rĂ©elle. En perspective seront prĂ©sentĂ©s des travaux en cours visant Ă  mettre en Ă©vidence des marqueurs de charge mentale robustes Ă  la tĂąche, ainsi que l'utilitĂ© des potentiels Ă©voquĂ©s auditifs en paradigme de simple stimulus
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