Producing software that is adaptable to the rapid environmental changes and the dynamic nature of the business life-cycle is extensively becoming a topical issue in the software evolution. In this context, change prop...
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In order to evaluate the structural complexity of class diagrams systematically and deeply, a new guiding framework of structural complexity is presented. An index system of structural complexity for class diagrams is...
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In order to evaluate the structural complexity of class diagrams systematically and deeply, a new guiding framework of structural complexity is presented. An index system of structural complexity for class diagrams is given. This article discusses the formal description of class diagrams, and presents the method of formally structural complexity metrics for class diagrams from associations, dependencies, aggregations, generalizations and so on. An applicable example proves the feasibility of the presented method.
The RFID framework constructed by Reader, Transponder and Middleware system forms a new construction of future production line automation, material management and logistic industry. The EPC (Electronic Product Code) N...
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ISBN:
(纸本)9781605580890
The RFID framework constructed by Reader, Transponder and Middleware system forms a new construction of future production line automation, material management and logistic industry. The EPC (Electronic Product Code) Network, advocated by international organization, EPCglobal Inc., is the standard technology of RFID application. This paper proposes a cross layer design that applies an intelligent mobile purchasing system by combining RFID smart phone at Physical layer, transferring the RFID code into EPC Network at Media Access Control Layer, gathering the EPC Domain information at Application Layer and establishing the secure EPC network framework with Product of Authority Server (PAS) network environment at Application Layer. By using the cross-layer approach, user can purchase through the smart phone with RFID Reader. Content Web Server and ODS Server are responsible for recording the commodity information by EPC Code. The commodity will be directly sent to user's home through the Object Tracing Function of Secure EPC Network.
Trip planning search (TPS) represents an important class of queries in Geographic informationsystems (GIS). In many real-world applications, TPS requests are issued with a number of constraints. Unfortunately, most o...
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ISBN:
(纸本)9781605583235
Trip planning search (TPS) represents an important class of queries in Geographic informationsystems (GIS). In many real-world applications, TPS requests are issued with a number of constraints. Unfortunately, most of these constrained TPS cannot be directly answered by any of the existing algorithms. By formulating each restriction into rules, we propose a novel form of route query, namely the multi-rule partial sequenced route (MRPSR) query. Our work provides a unified framework that also subsumes the well-known trip planning query (TPQ) and the optimal sequenced route (OSR) query. In this paper, we first prove that MRPSR is NP-hard and then present three heuristic algorithms to search for near-optimal solutions for the MRPSR query. Our extensive simulations show that all of the proposed algorithms can answer the MRPSR query effectively and efficiently. Using both real and synthetic datasets, we investigate the performance of our algorithms with the metrics of the route distance and the response time in terms of the percentage of the constrained points of interest (POI) categories. Compared to the LORD-based brute-force solution, the response times of our algorithms are remarkably reduced while the resulting route length is only slightly longer than the shortest route. Copyright 2008 ACM.
Since the establishment of the Unified Modeling Language (UML) as a standard graphical notation for representing knowledge, new ideas have emerged about tools that can automatically extract knowledge from text and rep...
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ISBN:
(纸本)9781627486620
Since the establishment of the Unified Modeling Language (UML) as a standard graphical notation for representing knowledge, new ideas have emerged about tools that can automatically extract knowledge from text and represent it with UML diagrams. As the targeted representation of knowledge is in a graphical notation, we propose to also represent Natural Language (NL) and the knowledge it carries in a common graphical form, and then translate this Graphical NL (GNL) into another graphical form (UML).
In order to increase node lifetime and system throughput, the topology of wireless Ad Hoc networks can be controlled by changing the transmission power at each node. In this paper, we propose an energy-efficient distr...
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The research in this paper focuses on an approach to reverse engineering web-based legacy systems with the integration of model-driven engineering and UML. Three types of link-based models of web-based legacy systems ...
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As the web continues to increase in size, the relative coverage of web search engine is decreasing, and search tools that combine the results of multiple search engines are becoming more valuable. We present a genetic...
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Power consumption will be one of the most crucial issues to realize both future VLSI chips and communication environments. This research project proposed in this paper is aiming at developing a data-driven networking ...
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ISBN:
(纸本)1601320841
Power consumption will be one of the most crucial issues to realize both future VLSI chips and communication environments. This research project proposed in this paper is aiming at developing a data-driven networking system by which the coming networking environment can be achieved with ultra- low-power consumption 1/100 to 1/1000 of the present. To realize the objectives, this project is planning to proceed from two approaches by ultimately utilizing passive data-driven principle. One approach is from the processor platform, that is, data-driven chip multi-processor platform based on self-timed elastic pipeline. And the other is from the networking scheme, that is, ad hoc networking scheme. As for the platform approach, based on rich experience so far on data-driven processor, we propose a novel architecture including chip multi-processor core with highly effective self-timed elastic pipeline. As for the networking scheme, this paper shows our proposal can reduce the number of control packets that results in reduction of power consumption.
Fixed-outline floorplanning, which enables hierarchical design, is considered more and more important nowadays. In this paper, a novel SA-based Fixed-outline Floorplanner with the Optimal Area utilization named SAFFOA...
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ISBN:
(纸本)9781424428205
Fixed-outline floorplanning, which enables hierarchical design, is considered more and more important nowadays. In this paper, a novel SA-based Fixed-outline Floorplanner with the Optimal Area utilization named SAFFOA is introduced to improve the total wirelength. The basic idea is to build and solve a group of four quadratic equations in four variables iteratively, which can handle the fixed-outline constraint of any aspect ratio. A new topological representation called Ordered Quadtree is then custom-made for this basic idea to facilitate its integration into SA iterations. After the fixed-outline constraint with 100% area utilization is achieved, we will solve the tradeoff between the chip area and wirelength and thus concentrate on the latter in SA process. Experimental results show that the chip wirelength is decreased by about 16.8% and 8.6% on average, compared with two previous fixed-outline floorplanners on soft modules, which are both proved to be better than Parquet. Besides, our method is still competitive on the wirelength, even if compared with some leading-edge outline-free floorplanners. At last, Local Refinement is also adopted to guide the SA process and reshape soft modules to meet the constraint on their aspect ratios (ARs). With its help, SAFFOA can still generate feasible floorplans with no deadspace under a strict AR constraint such as [0.5,2].
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