In order to provide highly available and effective task management operations on mobile devices, an object-oriented and aspect-oriented task management toolkit on mobile device called OATMTM is designed. It uses objec...
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Runtime verification is an emerging discipline that investigates methods and tools to enable the verification of program properties during the execution of the application. the goal is to complement static analysis ap...
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the paper proposes a variant of sesqui-pushout rewriting (SqPO) that allows one to develop the theory of nested application conditions (NACs) for arbitrary rule spans;this is a considerable generalisation compared wit...
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ISBN:
(纸本)9783319091082;9783319091075
the paper proposes a variant of sesqui-pushout rewriting (SqPO) that allows one to develop the theory of nested application conditions (NACs) for arbitrary rule spans;this is a considerable generalisation compared with existing results for NACs, which only hold for linear rules (w.r.t. a suitable class of monos). Besides this main contribution, namely an adapted shifting construction for NACs, the paper presents a uniform commutativity result for a revised notion of independence that applies to arbitrary rules;these theorems hold in any category with (enough) stable pushouts and a class of monos rendering it weak adhesive HLR. To illustrate results and concepts, we use simple graphs, i.e. the category of binary endorelations and relation preserving functions, as it is a paradigmatic example of a category with stable pushouts;moreover, using regular monos to give semantics to NACs, we can shift NACs over arbitrary rule spans.
the benefit of a hybrid system is strongly dependant on the system design and the control strategy that will be used. this paper suggests a method to evaluate the optimal control strategy of a hybrid electrical system...
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ISBN:
(纸本)9781632666390
the benefit of a hybrid system is strongly dependant on the system design and the control strategy that will be used. this paper suggests a method to evaluate the optimal control strategy of a hybrid electrical system to optimize its design from the point of view of fuel consumption taking into account this interaction. Analytic models are used to describe the system and the interactions between components. A first optimization is made to minimize fuel consumption using one system configuration on a typical consumption cycle. this algorithm is ready to be using with a higher level algorithm in order to find an appropriate design of the system.
OpenCL is becoming a popular choice for the parallel programming of both multi-core CPUs and GPGPUs. One of the features missing in OpenCL, yet commonly required in irregular parallel applications, is dynamic memory a...
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ISBN:
(纸本)9781450327664
OpenCL is becoming a popular choice for the parallel programming of both multi-core CPUs and GPGPUs. One of the features missing in OpenCL, yet commonly required in irregular parallel applications, is dynamic memory allocation. In this paper, we propose KMA, a first dynamic memory allocator for OpenCL. KMA's design is based on a thorough analysis of a set of 11 algorithms, which shows that dynamic memory allocation is a necessary commodity, typically used for implementing complex data structures (arrays, lists, trees) that need constant restructuring at runtime. Taking into account boththe survey findings and the status- quo of OpenCL, we design KMA as a two-layer memory manager that makes smart use of the patterns we identified in our application analysis: its basic functionality provides generic malloc() and free() APIs, while the higher layer provides support for building and efficiently managing dynamic data structures. Our experiments measure the performance and usability of KMA, using both microbenchmarks and a real-life case-study. Results show that when dynamic allocation is mandatory, KMA is a competitive allocator. We conclude that embedding dynamic memory allocation in OpenCL is feasible, but it is a complex, delicate task due to the massive parallelism of the platform and the portability issues between different OpenCL implementations. Copyright 2014 ACM.
Insider threat damages vary from intellectual property loss and fraud to IT sabotage. As insider threat incidents have evolved to cause potentially catastrophic damages, there exists a need for a detection mechanism i...
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ISBN:
(纸本)9781450330336
Insider threat damages vary from intellectual property loss and fraud to IT sabotage. As insider threat incidents have evolved to cause potentially catastrophic damages, there exists a need for a detection mechanism in order to build solutions that prevent such threats. Studies over the years show an understanding of the threat, and many approaches have been suggested to detect it, yet none of the approaches targets the physiological aspect of the threat. Bio-signals are impossible to mimic or change, as opposed to behavioral approaches. In this paper, we investigate the use of physiological signals as a measurement to detect insider threat. We design an insider threat monitoring system called Physiological Signals Monitoring (PSM) that detects incidents seconds before they occur. the main measurement in PSM is the abnormal deviation rate of electrocardiogram (ECG) amplitude, Galvanic Skin Response (GSR) and skin temperature that occurs seconds before an incident is executed. Our experiment on 15 human subjects explores this new area and shows the promise of the proposed solution with all of the tested incidents being correctly classified with Nearest Neighbor and functional Trees classifiers.
the authors study on the hand gesture discernment based on the surface electromyogram of forearm. In order to discern finger shapes of the rock-paper-scissors, genetic programming technique is applied to establish the...
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the authors study on the hand gesture discernment based on the surface electromyogram of forearm. In order to discern finger shapes of the rock-paper-scissors, genetic programming technique is applied to establish the optimum classification algorithm of hand gestures by composing of arithmetic functions. We measur myoelectric potential signals of forearm related to rock-paper-scissors, and applies them to genetic evolution of hand gesture classification. We also evaluated the effects of the target number of nodes, crossover rate, mutation rate of GP parameters. Realtime hand gesture identification experiments are carried out and the typical hand gestures are actually distinguished in accuracy of 99%.
In this paper, we propose an integer linear programming (ILP) model for static elevator operation problems. the proposed model is based on hall- and car-calls which correspond to pickup and delivery requests in pickup...
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In this paper, we propose an integer linear programming (ILP) model for static elevator operation problems. the proposed model is based on hall- and car-calls which correspond to pickup and delivery requests in pickup-and-delivery problems (PDPs), thus is similar to ILP models for PDPs. the primary difference between those models and the proposed model is the prevention of the reverse run, which means that an elevator with a passenger is moved to the direction opposite to that of the passenger. In computer illustrations, the proposed model is roughly investigated by being compared with a trip-based ILP model which has been proposed by the authors.
the main purpose of this study was to investigate the influence of scaffolding and self-efficacy on students' programming learning performance in robotics learning environment. there were 89 junior high school stu...
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the main purpose of this study was to investigate the influence of scaffolding and self-efficacy on students' programming learning performance in robotics learning environment. there were 89 junior high school students participated in the study. the results indicated that there is significant interaction between scaffolding mechanism and learning motivation on students' learning performance. the introduction of design journal did not have a significant effect on the learning performance of students with high self-efficacy, however, design journal had pronounced benefits for students with moderate self-efficacy. According to the findings, we proposed some directions for future studies.
Despite the great potential of hybrid wind-diesel system in supplying energy to remote or island communities, sizing the system components have been a challenging problem for many project managers due to the reliance ...
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ISBN:
(纸本)9781632666390
Despite the great potential of hybrid wind-diesel system in supplying energy to remote or island communities, sizing the system components have been a challenging problem for many project managers due to the reliance on various factors. this work considers utilising a fixed speed wind turbine (induction generator) in the hybrid system. It requires energy for start-up operation and this work takes into account for sizing the battery storage. In addition, the trade-off between the number of batteries and diesel generator fuel usage in a system is studied. Linear programming for optimal sizing of batteries needed in a hybrid wind-diesel system, in the context of minimum diesel fuel usage is reported in this paper. Finally, this paper also shows that the storage capacity required in a hybrid system for various wind and load conditions can be computed in a systematic manner.
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