Constructing a one to one correspondence between whole brain MR image scans is a problem of critical importance in neuroimaging analyses. We present a framework to combine the strength of both surface-based and volume...
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ISBN:
(纸本)9783642042676
Constructing a one to one correspondence between whole brain MR image scans is a problem of critical importance in neuroimaging analyses. We present a framework to combine the strength of both surface-based and volumetric-based analyses for consistent, bijective data, transfer between brain coordinate, systems.
In this case study, we describe our use of ECT, a tool intended to simplify the design and development of network-spanning applications. We have used ECT throughout the course of a two-year collaboration, which has in...
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ISBN:
(纸本)9781605582474
In this case study, we describe our use of ECT, a tool intended to simplify the design and development of network-spanning applications. We have used ECT throughout the course of a two-year collaboration, which has involved individuals with expertise in a variety of fields, including interaction design and computer systems engineering. We describe our experiences withthis tool, with a particular focus on its emerging role in helping us to structure our collaboration. We conclude by presenting lessons that we have learned, and by suggesting future directions for the development of tools to support the design of network-spanning applications.
the evolution of services market raises the need for automatic support for negotiating service use criteria. In order to reach an agreement, the negotiating parties need to develop a common understanding of the Qualit...
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Contextual advertising is a form of online advertising presenting consistent revenue growth since its inception. In this work. we study the problem of recommending a small set of ads to a user based solely on the curr...
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ISBN:
(数字)9783642009587
ISBN:
(纸本)9783642009570
Contextual advertising is a form of online advertising presenting consistent revenue growth since its inception. In this work. we study the problem of recommending a small set of ads to a user based solely on the currently viewed web page, often referred to as content-targeted advertising. Matching ads with web pages is a challenging task for traditional information retrieval systems due to the brevity and sparsity of advertising text, which leads to the widely recognized vocabulary impedance problem. To this end, we propose the use of lexical graphs created from web corpora, as a means of computing improved content similarity metrics between ads and web pages. the results of our experimental study provide evidence of significant improvement ill the perceived relevance of the recommended ads.
this article presents the results of a methodology combining an extensive fieldwork, a formalization of field-based individual rules and norms into an agent-based model and the implementation of scenarios analyzing th...
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ISBN:
(纸本)1844690172
this article presents the results of a methodology combining an extensive fieldwork, a formalization of field-based individual rules and norms into an agent-based model and the implementation of scenarios analyzing the effects of social and agro-ecological constraints on rural farmers through the study of three different sites in Nigerien Sahel. Two family transition processes are here tested, following field observations and literature-based hypotheses: family organizations can evolve between a patriarchal mode and a non-cooperative one because of family income redistribution tensions. Family inheritance systems can shift between a "customary" mode and a "local Muslim" one through family land availability tensions. Our results show that both agro-ecological and socio-economic characteristics determine the simulated family type distribution and consequently the allocation of resources. Results from simulations with no evolution processes show that villages specialize themselves on different economic activities according to natural resources: An intensification gradient is observed from the most favored site, with more local productions and improved ecological indicators, to the less-favored one, with a growing proportion of the population wealth coming from migration remittances and "off-shore" livestock. Once introducing such processes, the differentiation also occurs within the population level, subdividing it into specializing groups according to their size, their assets and their social status. Emerging individualistic family types increase the village populations' robustness through different and site-specific evolutions.
the earlier concurrency problems are identified, the less costly they are to fix. As larger, more complex concurrent systems are developed, early detection of problems is made increasingly difficult. We have developed...
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ISBN:
(纸本)9783642044243
the earlier concurrency problems are identified, the less costly they are to fix. As larger, more complex concurrent systems are developed, early detection of problems is made increasingly difficult. We have developed a general approach meant to be used in the context of Model Driven Development. Our approach is based on the analysis of design models expressed in the Unified Modeling Language (UML) and Uses Specifically designed genetic algorithms to detect concurrency problems. Our main motivation is to devise practical Solutions that are applicable in the context of UML design of concurrent systems without requiring additional modeling. All relevant concurrency information is extracted from UML models that comply withthe UML Modeling and Analysis of Real-Time and Embedded systems (MARTE) profile. Our approach was shown to work for both deadlocks and starvation. the current paper addresses data race detection, further illustrating how our approach can be tailored to other concurrency issues. Results on a case study inspired from the therac-25 radiation machine Show that our approach is effective in the detection of data races.
the proceedings contain 21 papers. the topics discussed include: RapidMesh: declarative toolkit for rapid experimentation of wireless mesh networks;QoS-aware channel scheduling for multi-radio/multi-channel wireless m...
ISBN:
(纸本)9781605587400
the proceedings contain 21 papers. the topics discussed include: RapidMesh: declarative toolkit for rapid experimentation of wireless mesh networks;QoS-aware channel scheduling for multi-radio/multi-channel wireless mesh networks;assessing mobility support in mesh networks;TLQAP: a topology and link quality assessment protocol for efficient node allocation on wireless testbeds;a measurement study of Zigbee-based indoor localization systems under RF interference;a model for comparing rate adaptation algorithms;mobility emulator for DTN and MANET applications;the Stanford OpenRoads deployment;footprint: cellular assisted Wi-Fi AP discovery on mobile phones for energy saving;monitoring the high-voltage transmission lines based on two-tier wireless networks;OLSR and Net-X as a framework for channel assignment experiments;a backoff copying scheme for contention resolution in wireless sensor networks;and a new slicing scheme for efficient use of wireless testbeds.
Digital signage is a very attractive medium for advertisement and general communications in public open spaces. In order to add interaction capabilities to digital signage displays, special considerations must be take...
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ISBN:
(纸本)9783642026102
Digital signage is a very attractive medium for advertisement and general communications in public open spaces. In order to add interaction capabilities to digital signage displays, special considerations must be taken. For example, the signs' environment and placement might prevent direct access to conventional means of interaction, such as using a keyboard or a touch-sensitive screen. this paper describes a vision-based gesture recognition approach to interact with digital signage systems and discusses the issues faced by such systems. Using Haar-like features and the AdaBoosting algorithm, a set of hand gestures call be recognized in real-time and converted to gesture commands to control and manipulate the digital signage display. A demonstrative application using this gesture recognition interface is also depicted.
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