最新刊期
卷 35 ， 期 2 ， 2007
- 摘要：A new feature space transformation algorithm in color image is presented.Basing on high dimensional imaginal geometry and biomimetics informatics and taking advantage of variations in color information,this new algorithm transforms the color image into feature space and rectifies each feature value within its neighborhood.By using this method,image feature without the effect of different light conditions can be obtained.In face detection application,unlike traditional skin tune detection method,the new method directly transforms the color image into feature space and locates the face position in feature space by face template feature matching.In this paper,the application of this new method to face detection in complex light color images has also been discussed.According to experimental result,it can be seen that the proposed method is very efficient and has significant value in application.关键词：complex light;color image;feature transformation;high dimensional imaginal geometry and biomimetics informatics;face detection2|1121|4更新时间：2025-07-16
- 摘要：SOC technology has developed rapidly,which makes the test data of SOC increasing dramatically.This paper presents an effective test data compression algorithm,Variable-Run-Length code.Both runs of 0s and runs of 1s in test data stream are mapped to codeword so as to reduce the number of short runs and improve compression radio.Theoretical analysis and experimental results show that Variable-Run-Length code can provide a higher compression radio than other compression algorithms and it also leads to a significant saving in peak and average power due to a careful mapping of the don't-cares in precomputed test sets to 1’s and 0’s.关键词：variable-run-length code;test compression;test power dissipation2|846|25更新时间：2025-07-16
- 摘要：The random order execution which used in cryptographic ICs is a kind of few redundancy and low power countermeasures against power analysis attacks.The security is stronger with higher degree of uncertainty of timing.A data flow random executing AES encryption ASIC adopted the dynamic data flow architecture and served concurrent tokens randomly and sequentially.Its uncertainty was enhanced by increasing the number of order independent operations and batch arrival of tokens.A novel token hold-match-fetch structure was designed to complete the synchronization and random service control.Finally,all of the operations were random executing.That chip can resist 15,000 samples Correlation Power Analysis.Its energy consumption is less than the known AES circuits with other countermeasures.关键词：data security;VLSI design;power analysis attack2|693|2更新时间：2025-07-16
- 摘要：The complexity of H.264 hardware intra encoder is remarkable due to 17 prediction modes and Rate-distortion optimization mode decision.Although reduce coding complexity greatly,most of current intra prediction mode decision algorithms are hard to implement in hardware.A new mode decision algorithm for VLSI implementation is proposed based on Sobel edge detection mode decision algorithm.Our algorithm decreases memory bandwidth by modifying Sobel edge detector of part pixels,reduces hardware design complexity by optimizing mode region range,and simplifies cost computations of each prediction mode by using SATD.The results of experiment and hardware design show that our algorithm can greatly reduce the complexity of hardware implementation and significantly improve the efficiency of coder while coding quality is decreased slightly.关键词：H.264;intra-frame code;mode decision;VLSI implementation2|1021|3更新时间：2025-07-16
- 摘要：A dual-material-gate single-halo SOI MOSFET was proposed to suppress the short channel effect and increase the current driving capacity of deep submicron SOI MOSFETs.The gate consists of two materials contacting laterally and with different work functions,and halo doping is used in the channel near the source.Using the multi-region parabola potential distribution and the universal boundary conditions,the two-dimensional analytical models of surface potential and threshold voltage for the novel device were derived by solving the two-dimensional Poisson's equation under the fully depleted condition.The characteristics of the novel device were studied as compared with the conventional SOI MOSFET.It was shown that the novel device could suppress threshold voltage roll-off,hot carrier and drain-induced barrier lowering effects efficiently,and increase carrier transport speed through the channel considerably.The analytical models are in very good agreement with two-dimensional device simulator MEDICI.关键词：MOSFET;dual-material gate;analytical model;threshold voltage2|768|0更新时间：2025-07-16
- 摘要：Both continuous and discrete particle swarm optimization (PSO) algorithms are applied to design cascaded Mach-Zehnder interferometer (MZI) based optical filter,for the first time.Then the optimal structural parameters (i.e.coupling angles and phase-shift factors) are obtained,by approaching the ideal coefficients with coupling angles and phase-shift factors.In our experiment,a filter of 3-cascaded MZI has been shown,and the relative error between the obtained response and ideal response is about 10-5.Meanwhile,compared with genetic algorithm (GA) scheme,the PSO scheme is characterized by short computing time,excellent approach fitness and high extinction ratio.关键词：optical filter;Mach-Zehnder interferometer(MZI);particle swarm optimization(PSO);genetic algorithm(GA)2|1190|1更新时间：2025-07-16
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Optimum Design on Compact Photonic Crystal Waveguide Directional Coupler Based on Adiabatic Coupling
摘要：We present an optimal design of Photonic Crystal Waveguide Directional Coupler (PCW-DC) with adiabatic coupling boundary in this paper.The Planar Wave Expand method (PWE) is employed to analyze the band gap and the proprieties of defect mode in parallel PCW.A 90° bend PCW is designed to couple the PCW-DC and two parallel single mode fibers which connect to PCW-DC at port one and port two,respectively.The transmission proprieties of the PCW-DC with adiabatic coupling boundary are analyzed with finite-difference time-domain (FDTD) method.It is shown that use this PCW-DC can achieve efficient transmission ratio in cross state,bar state and power division state at different coupling length.The simulation results show that the coupling ratio can be higher than 90% in a wide wavelength range when the PCW-DC is designed in bar and cross states.关键词：planar lightwave circuits;photonic crystal;directional coupler;coupling boundary2|1169|3更新时间：2025-07-16 - 摘要：Integration of ISFETs in biochemical SOC (System on a Chip) is one of today’s challenges.This article presents a full integration of micro-sensor and readout circuit containing ISFET/REFET (reference FET) pair,ISFET/REFET amplifiers,bias current generator,band-gap reference,as well as a reference electrode structure,all integrated on the same chip based on CMOS technology.The sensor chip is fabricated in a standard 0.35μm CMOS process (Chartered Semiconductor,Singapore) and operates at 3.3V.The extra post processing steps have been developed for ISFET which can work in either linear or saturation region by programmable control.Finally pH response experiments have been carried out and the measurement system achieves 53 mV/pH sensitivity and the enhanced linearity.关键词：micro-sensor;readout circuit;monolithic integration;system on a chip2|1744|2更新时间：2025-07-16
- 摘要：Recently there has been a growing interest in aggregation queries for scenarios in which data streams arrive at very high rates and a data stream system is registered with many simultaneous queries.In order to dealing with the huge amounts of data and increasingly stringent response-time requirements,Most existing work in this area has to adopt approximate technology which sacrifice aggregate veracity.But in the environment of high rate data streams,the processing rate still cannot satisfy requirements.So query processing based on hardware-software codesign has recently emerged as a viable solution for dealing with high rate data streams.In this paper,We propose a kind of novel aggregate query algorithms based on hardware-software codesign,which incorporate hardware advantage in processing rate and software long suit in agility.Many incremental computation approaches and resource sharing techniques in sliding-window aggregations are introduced.Lastly,time cost of the algorithm is analyzed and the experiment show the feasibility and effectiveness of the approach.关键词：data streams;aggregation queries;hardware-software codesign;incremental computation2|944|2更新时间：2025-07-16
- 摘要：Existing anomaly intrusion detection algorithms based on supervised learning usually face difficulties when the training samples are insufficient.At the same time,the characteristics that the pattern of network traffic is changing over time are not considered adequately by the intrusion detection algorithms which are based on the equivalent learning of all historical dataset.So,a streaming ensemble intrusion detection model based on small labeled data is presented,in which a small labeled dataset is extended to work out the problem of the insufficiency of training samples.In addition,it can adapt to the changes of network traffic adequately.The experimental results manifest that the algorithm has better detection performance than those based on all historical data while the size of labeled dataset is very small.关键词：intrusion detection;data stream process;small labeled data;ensemble intrusion detection model2|642|2更新时间：2025-07-16
- 摘要：A multi-agent system model is proposed for Wireless Sensor Networks (WSN) to address the lack of a generalized theoretic model,which includes the formalized language,model,semantics and important axioms and model constraints.The proposed model abstracts WSN as a cognitive system composed of agents with specific cognitive ingredients,such as belief,desire,intention and ability,which together constitute the multi-agent system cognitive model.This paper provides formalized theoretic foundation and analysis tools for understanding,analyzing and forecasting of WSN behaviors independent of internal structures and practical implementations.关键词：Wireless sensor networks;multi-agent system;BDI model2|888|9更新时间：2025-07-16
- 摘要：The security is a key problem in P2P network.A proposed reputation-polling protocol could resolve it by reflecting the credibility with the former performances of unknown servents.Unfortunately,it didn’t take account of the uncertainty in P2P systems.SPA is a new way about dealing with uncertainties problems.We proposed a security solution which was based on servents’ uncertainties,and took quantitative analysis with SPA for servents’ reputation.In the end,a comparison was made to testify the solution’s superiority.关键词：P2P network;security;reputations;set pair analysis(SPA)2|1144|9更新时间：2025-07-16
- 摘要：Traditional network solution can't satisfy both performance and flexibility requirements on parsing text-encoded network protocols.We present the instruction set and the architecture of a new processor for augmented backus-naur form(ABNF) pattern matching to solve the problems mentioned above.We implement the processor structure with field programmable gate array(FPGA),and the experimental results show that this processor has higher performance,better flexibility with fewer logic-cell utilization.关键词：augmented backus-naur form(ABNF);pattern matching;instruction;architecture;field programmable gate array(FPGA)2|664|1更新时间：2025-07-16
- 摘要：In this paper we investigate relations among absolute reduction and relative reductions,including reductions corresponding to objects and reductions corresponding to decision systems in inconsistent decision systems.Furthermore,we prove that μ -decision reduct is equal to relative reduct in the view of information theory.关键词：rough sets;decision system;absolute reduction;relative reduction;information entropy2|1129|22更新时间：2025-07-16
- 摘要：Based on the service pricing algorithm architecture of ECPR,we present a optimal one by adding the impact of network KQI,market KQI and policy KQI of NGN,a evaluating mechanism to predict the price reaction to these KQIs,a neural-network-based adaptive adjusting mechanism to define the parameters of pricing formula and predictive formula based on the difference between real KQIs and predictive KQIs.The result of simulation experiment shows that our pricing algorithm is better than ECPR’s.关键词：next generation network(NGN);pricing decision support mechanism;key quality index(KQI)2|826|2更新时间：2025-07-16
- 摘要：The concepts of dimension-variable operation,generalized type and the generalized universal algebra are defined.Then,the concept of Fuzzy Modal Propositional Logic together with it's operations are proposed.The system of M is introduced by the use of the concept of generalized universal algebra.At last,the properties and the classification of generalized tautologies are discussed.It is proved that there are only three generalized tautologies in system of M .关键词：fuzzy logic;fuzzy modal propositional logic;generalized tautology2|1368|14更新时间：2025-07-16
- 摘要：This paper presents a total variation (TV) image denoising algorithm based on graph cut.In this algorithm,the minimum of the total variation image denoising energy function was transfomed to a minimum cut of a certain graph.Then,some maximum flow/minimum cut algorithms could solve this problem,and get the global minimum of the TV energy function.In addition,an adaptive method of the proportion coefficient is given.Experiment results show that the algorithm proposed could avoid the staircase effect occurred in some classical total variation minimization methods,and has the better restored effect.关键词：total variation;graph cut;maximum flow/minimum cut;image denoising2|1235|3更新时间：2025-07-16
- 摘要：A new evolutionary learning algorithm (HIGAPSO) based on a hybrid of real-code genetic algorithm (GA) and particle swarm optimization (PSO) is proposed in this paper.In this hybrid algorithm some improved genetic mechanisms,for example initial population produced by chaos sequence,non-linear ranking selection,competition and selection among several crossover offspring and adaptive change of mutation scaling are adopted;also the new population is produced through three approaches,i.e.elitist strategy,PSO strategy and the improved genetic algorithm (IGA) strategy.Through testing four benchmark functions with large dimensionality,the experimental results show that this new algorithm not only improves the global optimization performance and quickens the convergence speed,but also obtains robust results with good quality,which indicates it is a promising approach for solving global optimization problems.关键词：genetic algorithm;particle swarm optimization;competition and selection;mutation scaling2|657|28更新时间：2025-07-16
- 摘要：From the starting of the queue length process itself,this paper directly studies the distribution of the queue length in the M/G/1 queuing system with feedback.The recursion express of the Laplace transform which the transient queue length distribution at any time t and the recursion formulas of the equilibrium distribution for calculating conveniently are obtained.It is noting that the method provided in this paper is concise and intuitive.关键词：transient distribution;stable distribution;queue length;recursion formula2|1234|2更新时间：2025-07-16
- 摘要：This paper presents a self-adaptive vowel-frame detection algorithm based on energy distribution analysis in frequency domain.The method maps MEL-scale into frequency component and detect vowel-frame by compare the energy of LF and HF.Then conduct the time-domain-analysis with short-time energy and zero-crossing rate of vowel-frame,which have been verified.The method needs less computation cost and can adapt the transformation of volume.The experimental results on single word have demonstrated that the accurate rate is over 97% while the average frame-lost rate is 3.95%.The accurate rate of vowel-frame detection on continuous speech is exceeding 90%.关键词：vowel-frame detection;frequency-domain analysis;self-adaptive;MEL-scale features2|653|6更新时间：2025-07-16
- 摘要：Arithmetic coding is widely adopted in the state-of-art multimedia compression schemes due to its high coding efficiency.Unfortunately,arithmetic codes are extremely vulnerable to channel errors because of the error propagation property.In this paper,arithmetic decoder is modeled as a finite state machine (FSM),and a sequential decoding algorithm is contrived by utilizing maximum a-posteriori (MAP) estimation rule.The FSM is responsible for a-priori probability estimation and error detection.Simulations with memoryless sources and JPEG2000 images show that the algorithm improves the system performance with reduced sequence error rate and enhanced quality of reconstructed images.关键词：arithmetic coding;finite state machine;soft decoding;maximum a-posteriori estimation2|927|3更新时间：2025-07-16
- 摘要：Dependence analysis is an important technique to analyze programs.This paper proposes a novel representation for multi-threaded programs with shared variables,which is called thread interaction reachability graph (tIRG).Based on tIRG,dependences in concurrent programs are analyzed globally and a new dependence graph called MSDG,which vertex is a 2-tuple composed of program state and statement,is constructed.Compared with traditional concurrent program dependence graph which vertex is statement,dependence relation in MSDG is precise and transitive.In contrast to other high-precision slicing methods,more precise slice will be obtained efficiently by traversing MSDG.关键词：concurrent programs;reachability analysis;dependence analysis;program slicing3|1683|8更新时间：2025-07-16
- 摘要：How users can use Grid effectively is a key issue in the research on interface and utilization mode of Grid.In this paper,the definitions of 3A(Any time,Any place and Any device) utilization mode was presented,and a formal model of user and service grid system (USG) was built using ASM.And based on USG model and these formal definitions,a theorem on 3A utilization mode was also be proposed,and the theorem was proved that if USG can satisfy the user validity,session connectivity and service continuity,then users can use service grid at any time,any place,and on any device.关键词：service grid;3A utilization mode;abstract state machine;grid model2|632|0更新时间：2025-07-16
- 摘要：Extracting effective features for texture description and classification is always a difficult problem in texture analysis.This paper proposes a method for texture feature extraction by integrating Gabor filters and independent component analysis (ICA).That is,the texture image is firstly filtered by a given bank of Gabor filters,and then higher-dimensional feature vectors are constructed from the filtered images.Next,the dimensionality of these vectors is reduced by means of principal component analysis (PCA).Finally,the independent components in the resulting vectors with dimensionality reduced are analyzed and extracted by using ICA for texture classification.Comparative experiments among this approach,the classic Gabor filters and ICA,are performed.The results demonstrate and evaluate its performance.关键词：supervised texture classification;Gabor filters;principal component analysis;independent component analysis2|819|7更新时间：2025-07-16
- 摘要：The paper presents the research of a 10Gbit/s Very Short Reach (VSR) parallel optical transmission system grounds on OIF-VSR4-03.0 Implementation Agreement.The system consists of a 16×622Mbit/s to 4×2.488Gbit/s converter IC,a self-made 12-channel parallel 850nm VCSEL transmitter and a commercial 12-channel parallel 850nm receiver,connection via 5-meter 400 MHz·km 62.5 μ m multi-mode fiber ribbon.All of the functions of the converter IC are realized in one FPGA.A dichotomy search algorithm logic to perform word alignment and STM-64/OC192 deframing speeds up the converter IC working speed and reduces circuit complexity greatly.The transmission speed of the 12-channel VCSEL transmitter reaches the aimed level of 12×2.488Gbit/s.In the point-to-point transmission measurement by 10Gbit/s SDH STM-64/OC192 tester,a system bit error rate (BER) of lower than 1×10-14 has been obtained.关键词：very short reach (VSR);parallel optical transmission module;converter IC;SDH2|1444|4更新时间：2025-07-16
- 摘要：A data prefetching method was proposed based on a Markov model,which was constructed according to the behavioral characteristics of LOAD instructions.SPEC simulation result shows that this work is preferable to Two-level value prefetching method and Syntax-based prefetching method as its instruction-prefetching coverage was increased by 9.51% and 2.02%,its prefetching accuracy was increased by 12.9% and 8.2% and its IPC was increased by 16.7% and 7.4% respectively.关键词：data dependence;Markov model;data value prefetching2|678|4更新时间：2025-07-16
- 摘要：An electrostatically actuated in-situ measuring method for average stress gradient and elastic modulus of a MEMS film was proposed based on pull-in voltages of a set of cantilevers.The key of the measuring method is to realize rapid and accurate calculation of pull-in voltages of the cantilevers.To increase the accuracy of the measurement,bending of the cantilevers along the width direction due to the stress gradient was considered.Actual simulations indicate that the calculating speed and the accuracy of the measuring method are ideal,and the method can apply to in-situ measurement.关键词：cantilever;pull-in voltage;average stress gradient;elastic modulus2|658|1更新时间：2025-07-16
- 摘要：A recursive algorithm is presented for obtaining steady-state solutions of a large class of nonlinear circuits and systems driven by two or more distinct frequency input signals,which are called nonlinear polynomial systems(a nonlinear system with a power series type of nonlinearity) in this paper and find the important and wider applications in practice.By way of this algorithm,the response of a nonlinear polynomial system to the given multiple input frequencies can be obtained by repeatedly solving the steady-state responses of the same linear system to different multiple input frequencies .A program is developed using the Matlab language.Numerous examples have been solved successfully using the algorithm.One of these examples is given for illustrative purpose.关键词：nonlinear polynomial systems;multiple input frequencies;steady-state responses2|1102|3更新时间：2025-07-16
- 摘要：An algorithm for multi-focus image fusion using wavelet based contourlet transform was proposed for the transform is of multi-scale and multi-direction,and cycle spinning was introduced to decrease the shift-variance of the transform.The results show that this algorithm improves the visual effect of the fused image and decreases the RMSE value.关键词：wavelet based contourlet transform;cycle spinning;image fusion2|1271|25更新时间：2025-07-16
- 摘要：In order to tackle the shortage of existing researches in Coalition Generation Problem,a novel Complicated Coalition and a novel Virtual Agent are proposed.Then a Particle Swarms Cooperative Optimization algorithm applied to solving serial Complicated Coalition Generation Problem is put forward on the basis of the analysis of the standard discrete particle swarm optimization.The new algorithm realizes the condition that an Agent can take part in several different coalitions and a coalition can turn its hand to several different tasks and partly reduces the waste of resource and ability.The effectiveness of the algorithm is proved by experiments.关键词：multi-agent system;complicated coalition;virtual agent;discrete particle swarm optimization2|598|18更新时间：2025-07-16
- 摘要：A statistical method based on information entropy is proposed for domain-specific term extraction from domain comparative corpora.It takes into account the distribution of a candidate word among domains and within a certain domain.Normalization step is added into the extraction process to cope with unbalanced corpora.The proposed method characterizes attributes of domain-specific term more precisely and more effectively than previous term extraction approaches.Domain-specific terms are applied in text classification as the feature space.Experimental results indicate that it achieves better performance than traditional feature selection methods.关键词：domain-specific term;information entropy;normalization;text classification;feature selection2|1865|12更新时间：2025-07-16
- 摘要：The design and fabrication of 10Gbit/s transponder are presented.Key technologies of 10Gbit/s optical transceiver module are resolved.According to the MSA,the 300-pin transponder is designed.Experiments and tests show that the module entirely satisfies the application requirement of SDH/SONET(STM-64/OC-192)and 10G Ethernet.关键词：optical communication;optical transceiver module;10Gbit/s;transponder2|1474|0更新时间：2025-07-16
- 摘要：A new adaptive evolutionary programming,in which population is encoded by binary and complex-valued,is presented.Two layers chromosomes are arranged to express rule bases.In the first layer,binary gene is used to express the structure of fuzzy rule bases.In the second layer,complex-valued gene is used to determine the parameters of fuzzy rule bases.Adaptive evolutionary programming is used to optimize the structure and parameters simultaneously.The simulation experiments to tap fuzzy rule bases of nonlinear system and fuzzy PID controller automatically are done when prior experience knowledge is unknown.The results demonstrate that the given method is efficient.关键词：adaptive evolutionary programming;fuzzy control;nonlinear systems;fuzzy modeling2|586|1更新时间：2025-07-16
- 摘要：To solve a complex cooperative problem effectively,the reasonable allocation is very important.By allocating a cooperative problem to multiple entities based on optimization of the interaction relationship model,the interaction relationship number could shrink,which could decrease the interaction quantity,facilitate the management on cooperation,reduce the communication cost,and sequentially underlie the effective and high quality solving to a complex cooperative problem.Based on the definition of the intra-interaction and extra-interaction relationship,a mathematical model with target function on the minimization of the interaction relationship number is analyzed.With three proposed selection principles,a sequential optimized allocation algorithm is designed and implemented to provide a better solution of that mathematical model.Experiments prove that interaction relationship number allocated by this method is much less than other methods,which guarantees that the cooperative problem could be solved more effectively.关键词：allocation;interaction relationship number;selection principle;sequential optimization2|1010|1更新时间：2025-07-16
- 摘要：In order to track an occluded target in an image sequence,the Bayesian decision theory is,here,introduced to the problem of distinguishing occlusions and appearance changes according to their different risk possibilities.A new target template combining image intensity and histogram is designed.The corresponding updating method is also derived based on particle filter.If the target is totally occluded by another target,the template can be kept unchanged.The occlusion of a target will not influence tracking.Simulation results show that the presented method can efficiently justify whether the occlusion occurs and realize target tracking in image sequences even though the tracked target is totally occluded with long time.关键词：target tracking;particle filter;Bayesian decision;target occlusion2|1070|7更新时间：2025-07-16
- 摘要：IPv6 Tunnel Broker is one of important mechanisms of transition from IPv4 to IPv6. However,This mechanism does not support NAT users,also not specific a way to balance the load of tunnel servers. The function of Broker Server and Tunnel Server is modified to support NAT users. Meanwhile,a new dispatching method is proposed for balancing the load between tunnel servers.Simulation result shows that the method has better performance than other general dispatching methods have.关键词：tunnel broker;IPV6;transition;NAT;load balancing2|903|0更新时间：2025-07-16
- 摘要：Attacks to program vulnerabilities is a severe problem nowadays.This paper puts forward a new simplified approach based on programs’ runtime control flow monitoring.Compared to the methods based on system call sequence analysis,this approach has better granularity;Compared to the methods using whole call graph verification,it has the same effectiveness but more applicable.The results show that this approach can detect many kinds of known attacks to program vulnerabilities.关键词：information security;program vulnerabilities;intrusion detection;control flow;call graph;simplified function call trace2|680|5更新时间：2025-07-16
- 摘要：Elevator group control is a multi-objective optimization problem in an open,complicated and dynamical system.Currently,many algorithms have been applied in elevator group control,such as zoning approaches,search-based approaches,rule-based approaches and other adaptive approaches.However these methods fail of achieving the optimal performance in the average wait time.In this paper,the reinforcement learning technology is applied in the elevator group control system.The CMAC neural network is used to approx the value function of reinforcement learning and Q-learning algorithm is used to optimize the value function,thereby the optimal control policy of the elevator group control is achieved.The simulation experiment shows that the elevator group control using reinforcement learning with CMAC can reduce the average wait time efficiently in the down peak traffic.关键词：elevator group control;reinforcement learning;CMAC neural network;function approximation3|3001|7更新时间：2025-07-16
- 摘要：Smoothing functions play an important role in Support Vector Machine(SVM).This paper derived an important recursive formula and a new class of smoothing functions using the technique of interpolation functions.Thus the problem of seeking better smoothing functions was solved,which has been a major obstacle in this field for a long time.Several of its important properties were discussed.It was shown that the approximation accuracy of interpolation functions is better than the integral of the sigmoid function by an order of magnitude.It is also obviously higher than those of the first /second-order smooth polynomial functions.Therefore,the proposed class of interpolation functions is a competitive candidate for smoothing SVM.关键词：classification;support vector machine;data mining;interpolation;smoothing2|1015|31更新时间：2025-07-16
- 摘要：Phrase conveys more information than word,and can better represent main topic of one article.Most of keywords we referred to are actually in form of phrases.The problem is that extraction of keyphrase lacks guidance of some general rules.By taking advantage of the ability of rough set theory on data generalization and knowledge reduction,the manually labeled keyphrase corpus which come from People's Daily was mined and some construction rules of Chinese keyphrase has been generated.These rules can be used for automatic keyword extraction,and can also help people manually label keyword.The experimental results are promising:the performance of keyword extraction improved greatly after importing these rules.关键词：keyword extraction;keyphrase;rough set theory;rule mining2|1194|9更新时间：2025-07-16
- 摘要：One of the original intensions of markup languages is to separate the content and appearance.However,in most nowadays document formats,XML Schema are defined to combine content with appearance,thus they do not match the target.To meet the requirements from setting up the format standard for Chinese office document,a new kind of document format is proposed in this paper.In the proposed format,the information about appearance and the information of user’s data are separated but coexisted in the same document,while association is setup between these two.This document format can assure that the format data can either be separated from or combined with the user's data,which makes WYSIWYG editing and system integration successful.关键词：document format;document processing;office software;extensible Markup language(XML)2|1339|4更新时间：2025-07-16
- 摘要：A dynamic scheduler based on feedback control is designed to solve the problem of limited network resource sharing in networked control systems (NCSs).Current network bandwidth and network-induced transfer error is obtained by a network QoS(Quality of Service)monitor.Then the new bandwidth is computed based on the known QoS.The sample periods are dynamically changed according to the network-induced error.At the same time,MEF scheduling policy is adopted to decide the priority of data packets when there has conflicts.Finally,the simulation validates the effectiveness of the proposed co-design method.关键词：networked control systems;schedule;feedback dynamic scheduler;network bandwidth;network-induced error2|1407|7更新时间：2025-07-16
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