Routing and channel assignment is a key topic in optical interconnection networks, and it is a primary way to get insight into the capacity of interconnection networks. Based on the optical RP(k) network, the waveleng...
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Routing and channel assignment is a key topic in optical interconnection networks, and it is a primary way to get insight into the capacity of interconnection networks. Based on the optical RP(k) network, the wavelength assignment of realizing the Hypercube communication with N=2n nodes on optical RP(k) network is discussed. By defining the reverse order of the Hypercube, an algorithm to embed the n-D Hypercube into the RP(k) network is designed, which needs at most max {2,[5.2n-5/3]} wavelengths. An algorithm to embed the n-D Hypercube into the ring network is also proposed, with its congestion equal to [N/3+N/12]. This is a better improvement than the known results, which is equal to [N/3+N/12]. The two algorithms proposed in this paper are of great value in designing optical networks.
This paper introduces a black-box framework for the configuration of network communication protocols dynamically. It divides the function of each layer into new protocols, each of which implements a single function, a...
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This paper introduces a black-box framework for the configuration of network communication protocols dynamically. It divides the function of each layer into new protocols, each of which implements a single function, and implementing them through comp.nents: There are five kinds of comp.nents;Session, Mux, Conduit Factory, Adapter and Protocol according to the features of their behaviors. The architecture of each comp.nent throng are abstracted through three tiers: Conduit, behavior and actor. The architecture of each comp.nent is described through patterns to make it more reusable and extensible. This black-box framework will be applied to ad hoc emulation system.
An approach of localizing a mobile robot with comp.essed omnidirectional images for robot localization and environment modeling is presented. The Parzen density estimation algorithm in omnidirectional image comp.essio...
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An approach of localizing a mobile robot with comp.essed omnidirectional images for robot localization and environment modeling is presented. The Parzen density estimation algorithm in omnidirectional image comp.ession is discussed. Fast Fourier transform helps in lowering the comp.ting comp.exity of Parzen density estimation and in attaining real-time processing. Principal comp.nents analysis algorithm is used to reduce further the dimensionality of feature vectors. A fast algorithm called singular value decomp.sition is used to get the first k principal comp.nents of the set of feature vectors. Localization is performed by projecting image data of the robot's current position into the eigenspace for forming a point and finding the closest neighbor point to previously acquired images on the environment modeling. The proposed method is tested through many experiments undertaken in indoor environments.
An efficient algorithm, RIFCI, for mining association rule, is proposed by simultaneously mining the frequent closed item sets inst.ad of traditional frequent item sets and at the mean time exploring both the item set...
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An efficient algorithm, RIFCI, for mining association rule, is proposed by simultaneously mining the frequent closed item sets inst.ad of traditional frequent item sets and at the mean time exploring both the item set space and transaction space, as is distinguished from all previous association mining methods that exploit only the item set search space. comp.red with the industrial standard C4.5, the error rate of the result is less than 19.48%, got by searching ten data sets in UCI repository of machine learning database. This algorithm, without changing the accuracy, generates the number of roles lower than previous methods, which improves the efficiency.
Adenosine is a physiological nucleoside which acts as an autocoid and activates G protein-coupled membrane receptors, designated A1, A 2A, and A3. Adenosine plays an important role in many (patho)physiological conditi...
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Adenosine is a physiological nucleoside which acts as an autocoid and activates G protein-coupled membrane receptors, designated A1, A 2A, and A3. Adenosine plays an important role in many (patho)physiological conditions in the CNS as well as in peripheral organs and tissues. Adenosine receptors are present on virtually every cell. However, receptor subtype distribution and densities vary greatly. Adenosine itself is used as a therapeutic agent for the treatment of supraventricular paroxysmal tachycardia and arrhythmias and as a vasodilatatory agent in cardiac imaging. During the past 20 years, a number of selective agonists for A1, A2A and A3 adenosine receptors have been developed, all of them structurally derived from adenosine. Several such comp.unds are currently undergoing clinical trials for the treatment of cardiovascular diseases (A 1 and A2A), pain (A1, wound healing (A 2A), diabetic foot ulcers (A2A), colorectal cancer (A 3) and rheumatoid arthritis (A3). Clinical evaluation of some A1, and A2A adenosine receptor agonists has been discontinued. Major problems include side effects due to the wide distribution of adenosine receptors;low brain penetration, which is important for the targeting of CNS diseases;short half-lifes of comp.unds;or a lack of effects, in some cases perhaps due to receptor desensitisation or to low receptor density in the targeted tissue. Partial agonists, inhibitors of adenosine metabolism (adenosine kinase and deaminase inhibitors) or allosteric activators of adenosine receptors may be advantageous for certain indications, as they may exhibit fewer side effects.
The design structure of a data exchange system in Web application is investigated, which makes use of a struts architecture based on the model-view-control structure, and controls the direction of data flow on an acti...
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The design structure of a data exchange system in Web application is investigated, which makes use of a struts architecture based on the model-view-control structure, and controls the direction of data flow on an actionservlet class, which offers an entrance for all http requests. The control comp.nent fills the corresponding parameters in the form bean, and the form bean validates these parameters. After success, the form bean sends these parameters to the action class. The Enterprise JavaBeans realize all the data exchange business and manage the distributed data resources. Then the action class decides to select the page in view by invoking enterprise JavaBeans. Finally, the action class transfers the control power to the consequent JSP page, which generates the view. This design structure separates the business logic from the page, so it is of advantage in developing and maintaining the system.
A motion model is presented to estimate the motion parameters for image stabilization by tracking feature points from consecutive frames. A frame-to-mosaic algorithm (FMA) for motion comp.nsation is described. The pro...
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A motion model is presented to estimate the motion parameters for image stabilization by tracking feature points from consecutive frames. A frame-to-mosaic algorithm (FMA) for motion comp.nsation is described. The proposed algorithm is able to comp.nsate the motion by fusing the motion of the current frame with that of the previous frames. Experimental results show its effective and potential applications.
A transactional workflow is comp.sed of traditional flat transactions, and its execution has relaxed transactional atomicity. Due to different termination characteristics of transactions, only one workflow is allowed ...
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A transactional workflow is comp.sed of traditional flat transactions, and its execution has relaxed transactional atomicity. Due to different termination characteristics of transactions, only one workflow is allowed to execute non-comp.nsatable transactions with current scheduling protocols. Two granularities of conflict based on transaction classes and transaction inst.nces are defined, and a scheduling protocol by using both granularities of conflict detection classes and transaction inst.nces are defined, and a scheduling protocol by using both granularities of conflict detection is proposed. Besides generating serializable and recoverable schedules, this method provides a higher degree of concurrency in following two ways. On the one hand, the fine-grained locking mechanism based on transaction inst.nces is used to reduce conflict possibility among concurrent workflows. On the other hand, the coarse-grained conflict mechanism based on transaction classes is used to predict future conflict among workflows, multiple workflows are therefore allowed to execute non-comp.nsatable transactions if they will not conflict in predicated future execution.
This paper desribes the matrix-theoretic ideas known as Welch-bound-equality sequences or unit-norm tight frames that are used to alternate minimizing the total squared correlation. This paper shows the construction o...
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This paper desribes the matrix-theoretic ideas known as Welch-bound-equality sequences or unit-norm tight frames that are used to alternate minimizing the total squared correlation. This paper shows the construction of an optimal signature sequences for the synchronous code-division multiple-access (S-CDMA) channel in the presence of white noise and uniform received powers to solve inverse eigenvalue problems that maximize the sum capacity of the S-CDMA channel.
Internet measurement and analysis provides a technique platform for improving network management, increasing network availability and avoiding large-scale network attack. So it has become an important issue widely con...
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Internet measurement and analysis provides a technique platform for improving network management, increasing network availability and avoiding large-scale network attack. So it has become an important issue widely considered by researchers, industries and government. In this paper, the chief research of the network measurement and analysis and its research trend in the world are introduced. And the key techniques and the difficult problems are explored. Three typical application examples are also given.
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