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New method for query answering in semantic web 被引量:1
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作者 林培光 刘弘 +1 位作者 樊孝忠 王涛 《Journal of Southeast University(English Edition)》 EI CAS 2006年第3期319-323,共5页
To promote the efficiency of knowledge base retrieval based on description logic, the concept of assertional graph (AG), which is directed labeled graph, is defined and a new AG-based retrieval method is put forward... To promote the efficiency of knowledge base retrieval based on description logic, the concept of assertional graph (AG), which is directed labeled graph, is defined and a new AG-based retrieval method is put forward. This method converts the knowledge base and query clause into knowledge AG and query AG by making use of the given rules and then makes use of graph traversal to carry out knowledge base retrieval. The experiment indicates that the efficiency of this method exceeds, respectively, the popular RACER and KAON2 system by 0.4% and 3.3%. This method can obviously promote the efficiency of knowledge base retrieval. 展开更多
关键词 description logic assertional graph semantic web information retrieval
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攀网同主网联网系统试验及最大输送电力研究
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作者 陶森林 邹振宗 +1 位作者 赵兴康 张晓明 《四川电力技术》 1989年第1期4-9,共6页
一、引言长期以来,四川电网包括主网和攀枝花电网(以下简称攀网)两网大独立运行的部份。1982年3月2日,四川主网经220kV 遵綦线,同贵州电网联网,形成装机容量为4329MW 的川黔电网。其中,四川主网装机2720MW,1983年12月11日。
关键词 言网 攀枝花电网 联网 试验
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On the clash between the traditional culture and the "fast food" culture from a perspective of internet language
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作者 吕文澎 杨雯琴 《Sino-US English Teaching》 2008年第7期37-39,共3页
With the development of the Internet, the Internet language-a new social variant of language comes into being. Owing to its distinctive features, the Internet language draws extensive attention and evokes dispute. Sho... With the development of the Internet, the Internet language-a new social variant of language comes into being. Owing to its distinctive features, the Internet language draws extensive attention and evokes dispute. Should we make laws to restrict its development or be magnanimous and tolerant? The present authors think that the dispute reflects the clash between the traditional culture and the "fast food" culture. The two cultures would co-exist harmoniously and co-develop healthily only if we cherish the law in the development of language and grasp the indirect correlation between them. 展开更多
关键词 Internet language traditional culture and "fast food" culture law in the development of language indirect correlation
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On the vocabulary acquisition theories and vocabulary teaching of foreign languages
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作者 李庆新 《Sino-US English Teaching》 2009年第1期1-4,共4页
As one of the important phases of language acquisition process, vocabulary acquisition has great impact on one's language competence and communication competence. However, there are still some problems in students' ... As one of the important phases of language acquisition process, vocabulary acquisition has great impact on one's language competence and communication competence. However, there are still some problems in students' vocabulary acquisition. This paper first discusses the current problems in vocabulary teaching, and then analyzes some laws in vocabulary acquisition, and at last it discusses the advantages of making use of Internet in vocabulary teaching, which aims to find a possible solution to the problems. 展开更多
关键词 tabular acquisition vocabulary teaching Internet environment language competence
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A Quantitative and Network Approach to Alignment Effects in L2 Continuation Tasks 被引量:2
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作者 Heng CHEN 《Chinese Journal of Applied Linguistics》 2021年第3期399-416,432,共19页
The present study employed a quantitative and network approach to detect alignment effects in second language(L2) continuation tasks designed on the xu-argument(Wang, 2016). The materials used in this study were 6 sub... The present study employed a quantitative and network approach to detect alignment effects in second language(L2) continuation tasks designed on the xu-argument(Wang, 2016). The materials used in this study were 6 sub-corpora consisting of two selected input stories and two groups of L2 written production based on two continuation tasks. During continuation, the participants were required to continue in English a story with its ending removed, with one group reading and continuing the Chinese version and the other group the English version, and then switching their roles in the two tasks. Results show that the alignment effect differs across the two versions of continuation. Specifically, compared with the Chinese-version continuation, L2 learners produced more use of unigrams and bigrams similar to the input story in terms of lexical items, frequency and ranking correlations in the English-version task;on the other hand, the English-version continuation can facilitate generating linguistic networks that are much closer to the native English networks. Moreover, this research corroborates that written production in L2 continuation tasks can be influenced by input content. 展开更多
关键词 CONTINUATION alignment effect language network quantitative linguistics second language acquisition
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Design of the XML Security System for Electronic Commerce Application 被引量:1
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作者 安南 Zhang Shensheng 《High Technology Letters》 EI CAS 2003年第2期81-86,共6页
The invocation of World Wide Web (www) first triggered mass adoption of the Internet for public access to digital information exchanges across the globe. To get a big market on the Web, a special security infrastructu... The invocation of World Wide Web (www) first triggered mass adoption of the Internet for public access to digital information exchanges across the globe. To get a big market on the Web, a special security infrastructure would need to be put into place transforming the wild-and-woolly Internet into a network with end-to-end protections. XML (extensible Markup Language) is widely accepted as powerful data representation standard for electronic documents, so a security mechanism for XML documents must be provided in the first place to secure electronic commerce over Internet. In this paper the authors design and implement a secure framework that provides XML signature function, XML Element-wise Encryption function, smart card based crypto API library and Public Key Infrastructure (PKI) security functions to achieve confidentiality, integrity, message authentication, and/or signer authentication services for XML documents and existing non-XML documents that are exchanged by Internet for E-commerce application. 展开更多
关键词 electronic commerce security digital certificates smart card digital commerce AUTHENTICATION transaction integrity verification internet XML
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Deep Spectrum Prediction in High Frequency Communication Based on Temporal-Spectral Residual Network 被引量:9
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作者 Ling Yu Jin Chen +2 位作者 Yuming Zhang Huaji Zhou Jiachen Sun 《China Communications》 SCIE CSCD 2018年第9期25-34,共10页
High frequency(HF) communication is widely spread due to some merits like easy deployment and wide communication coverage. Spectrum prediction is a promising technique to facilitate the working frequency selection and... High frequency(HF) communication is widely spread due to some merits like easy deployment and wide communication coverage. Spectrum prediction is a promising technique to facilitate the working frequency selection and enhance the function of automatic link establishment. Most of the existing spectrum prediction algorithms focus on predicting spectrum values in a slot-by-slot manner and therefore are lack of timeliness. Deep learning based spectrum prediction is developed in this paper by simultaneously predicting multi-slot ahead states of multiple spectrum points within a period of time. Specifically, we first employ supervised learning and construct samples depending on longterm and short-term HF spectrum data. Then, advanced residual units are introduced to build multiple residual network modules to respectively capture characteristics in these data with diverse time scales. Further, convolution neural network fuses the outputs of residual network modules above for temporal-spectral prediction, which is combined with residual network modules to construct the deep temporal-spectral residual network. Experiments have demonstrated that the approach proposed in this paper has a significant advantage over the benchmark schemes. 展开更多
关键词 HF communication deep learning spectrum prediction temporal-spectral residual network
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Information Expression Oriented toward the Hearing-Impaired Based on Sign Language Video Synthesis 被引量:1
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作者 王茹 王立春 +1 位作者 孔德慧 尹宝才 《China Communications》 SCIE CSCD 2011年第1期139-144,共6页
Among the human users of the Internet of Things,the hearing-impaired is a special group of people for whom normal information expression forms,such as voice and video are unaccessible,and most of them have some diffic... Among the human users of the Internet of Things,the hearing-impaired is a special group of people for whom normal information expression forms,such as voice and video are unaccessible,and most of them have some difficulty in understanding information in text form.The hearing-impaired are accustomed to receiving information expressed in sign language.For this situation,a new information expression form for the Internet of Things oriented toward the hearing-impaired is proposed in this paper,and the new expression is based on sign language video synthesis.Under the sign synthesis frame,three modules are necessary:constructing database,searching for appropriate sign language video units and transition units,and generating interpolated frames.With this method,text information could be transformed into sign language expression for the hearing-impaired. 展开更多
关键词 information express sign language video synthesis Internet of Things sign language anima- tion
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An OWL-based WordNet lexical ontology
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作者 HUANG Xiao-xi ZHOU Chang-le 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2007年第6期864-870,共7页
This paper discribes a data representation for WordNet 2.1 based on Web Ontology Language (OWL). The main components of WordNet database are transformed as classes in OWL, and the relations between synsets or lexcial ... This paper discribes a data representation for WordNet 2.1 based on Web Ontology Language (OWL). The main components of WordNet database are transformed as classes in OWL, and the relations between synsets or lexcial words are transformed as OWL properties. Our conversion is based on the data file of WordNet instead of the Prolog database. This work can be used to enrich the work in progress of standard conversion of WordNet to the RDF/OWL representation at W3C. 展开更多
关键词 WORDNET Web Ontology Language (OWL) Semantic Web ONTOLOGY Natural Language Processing (NLP)
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Semantics-Based Compliance An a lys is o f N e two rk S e cu rity Policy Hie ra rch ie s 被引量:1
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作者 Yao Shan Xia Chunhe +2 位作者 Hu Junshun Jiao Jian Li Xiaojian 《China Communications》 SCIE CSCD 2012年第7期22-35,共14页
Network security policy and the automated refinement of its hierarchies aims to simplify the administration of security services in complex network environments. The semantic gap between the policy hierarchies reflect... Network security policy and the automated refinement of its hierarchies aims to simplify the administration of security services in complex network environments. The semantic gap between the policy hierarchies reflects the validity of the policy hierarchies yielded by the automated policy refinement process. However, little attention has been paid to the evaluation of the compliance between the derived lower level policy and the higher level policy. We present an ontology based on Ontology Web Language (OWL) to describe the semantics of security policy and their implementation. We also propose a method of estimating the semantic similarity between a given 展开更多
关键词 policy refinement network security policy semantic similarity ontology
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A genre analysis of the B2B website
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作者 李亚丽 《Sino-US English Teaching》 2009年第1期34-41,共8页
The advent of the Intemet has witnessed a revolution in the business world. One typical example is the emergence of the B2B website. The present paper looks at the B2B website, a conventionalized digital text, in term... The advent of the Intemet has witnessed a revolution in the business world. One typical example is the emergence of the B2B website. The present paper looks at the B2B website, a conventionalized digital text, in terms of its communicative purposes, move features as well as linguistic specialties, with the aim of presenting the generic structure of the B2B website and its principal linguistic features contributing to the realization of its communicative purposes. It is demonstrated that the B2B website is one instance of the promotional genres and it has a lot in common with advertisement English and "netsneak" in the aspect of lexico-grammatical features. 展开更多
关键词 B2B website genre analysis communicative purpose netspeak
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SPEECH EMOTION RECOGNITION USING MODIFIED QUADRATIC DISCRIMINATION FUNCTION 被引量:9
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作者 Zhao Yan Zhao Li Zou Cairong Yu Yinhua 《Journal of Electronics(China)》 2008年第6期840-844,共5页
Quadratic Discrimination Function (QDF) is commonly used in speech emotion recognition, which proceeds on the premise that the input data is normal distribution. In this paper, we propose a transformation to normali... Quadratic Discrimination Function (QDF) is commonly used in speech emotion recognition, which proceeds on the premise that the input data is normal distribution. In this paper, we propose a transformation to normalize the emotional features, emotion recognition. Features based on prosody then derivate a Modified QDF (MQDF) to speech and voice quality are extracted and Principal Component Analysis Neural Network (PCANN) is used to reduce dimension of the feature vectors. The results show that voice quality features are effective supplement for recognition, and the method in this paper could improve the recognition ratio effectively. 展开更多
关键词 Speech emotion recognition Principal Component Analysis Neural Network (PCANN) Modified Quadratic Discrimination Function (MQDF)
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Optimizing neural networks by genetic algorithms for predicting particulate matter concentration in summer in Beijing 被引量:1
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作者 王芳 《Journal of Chongqing University》 CAS 2010年第3期117-123,共7页
We developed and tested an improved neural network to predict the average concentration of PM10(particulate matter with diameter smaller than 10 ?m) several hours in advance in summer in Beijing.A genetic algorithm op... We developed and tested an improved neural network to predict the average concentration of PM10(particulate matter with diameter smaller than 10 ?m) several hours in advance in summer in Beijing.A genetic algorithm optimization procedure for optimizing initial weights and thresholds of the neural network was also evaluated.This research was based upon the PM10 data from seven monitoring sites in Beijing urban region and meteorological observation data,which were recorded every 3 h during summer of 2002.Two neural network models were developed.Model I was built for predicting PM10 concentrations 3 h in advance while Model II for one day in advance.The predictions of both models were found to be consistent with observations.Percent errors in forecasting the numerical value were about 20.This brings us to the conclusion that short-term fluctuations of PM10 concentrations in Beijing urban region in summer are to a large extent driven by meteorological conditions.Moreover,the predicted results of Model II were compared with the ones provided by the Models-3 Community Multiscale Air Quality(CMAQ) modeling system.The mean relative errors of both models were 0.21 and 0.26,respectively.The performance of the neural network model was similar to numerical models,when applied to short-time prediction of PM10 concentration. 展开更多
关键词 PM10 concentration neural network genetic algorithm prediction
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Specifying and Configuring Routing Policies of Relative AS in RPSL
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作者 夏登文 石绥祥 于戈 《Marine Science Bulletin》 CAS 2004年第2期9-18,共10页
Routing policies specification language (RPSL) allows a network operator to specify routing policies at various levels in the Internet hierarchy, for example at the autonomous system (AS) level. At the same time, poli... Routing policies specification language (RPSL) allows a network operator to specify routing policies at various levels in the Internet hierarchy, for example at the autonomous system (AS) level. At the same time, policies can be specified with sufficient detail in RPSL so that the low level router configurations can be generated from them. This paper is a discussion on using the RPSL to describe routing policies of relative AS in the Internet routing registry (IRR). We first analyze the relationships between a pair of ASes, and then explain how to specify various relative AS routing policies in RPSL. At last, we show an example of configuring routing policies using RtConfig that is a tool developed by the Routing Arbiter Project (RAP). 展开更多
关键词 routing policy AS RPSL BGP IRR
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Dynamic Target Wireless Network Selection Technique Using Fuzzy Linguistic Variables 被引量:7
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作者 Faisal Kaleem Abolfazl Mehbodniya +2 位作者 Arif Islam Kang K.Yen Fumiyuki Adachi 《China Communications》 SCIE CSCD 2013年第1期1-16,共16页
Even though various wireless Net- work Access Technologies (NATs) with dif- ferent specifications and applications have been developed in the recent years, no single wireless technology alone can satisfy the any- ti... Even though various wireless Net- work Access Technologies (NATs) with dif- ferent specifications and applications have been developed in the recent years, no single wireless technology alone can satisfy the any- time, anywhere, and any service wire- less-access needs of mobile users. A real seamless wireless mobile environment is only realized by considering vertical and horizontal handoffs together. One of the major design issues in heterogeneous wireless networks is the support of Vertical Handoff (VHO). VHO occurs when a multi-interface enabled mobile terminal changes its Point of Attachment (PoA) from one type of wireless access technology to another, while maintaining an active session. In this paper we present a novel multi-criteria VHO algorithm, which chooses the target NAT based on several factors such as user preferences, system parameters, and traf- tic-types with varying Quality of Service (QoS) requirements. Two modules i.e., VHO Neces- sity Estimation (VHONE) module and target NAT selection module, are designed. Both modules utilize several "weighted" users' and system's parameters. To improve the robust- ness of the proposed algorithm, the weighting system is designed based on the concept of fuzzy linguistic variables. 展开更多
关键词 network access selection VHO heterogeneous networks WLAN WMAN WWAN Techniques for Order Preference bySimilarity to Ideal Solution
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Development Status and Countermeasures of the Computer- aided English Teaching
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作者 Jun Su 《International Journal of Technology Management》 2013年第3期31-33,共3页
Learning English requires an English environment, but it is impossible for us to communicate with the English speaking people face-to-face frequently, Computer network can he said to narrow the distance between people... Learning English requires an English environment, but it is impossible for us to communicate with the English speaking people face-to-face frequently, Computer network can he said to narrow the distance between people from the space, turn the world into a global village, and provide people in the world with more and more convenient opporttmities. The use of computer-aided English teaching can make up for the deficiencies of the traditional English teaching methods, which will greatly improve English teaching. In this paper, in view of the perspective of psycholinguistics to analyze common English pod cast, network language and foreign learning phenomenon. 展开更多
关键词 COUNTERMEASURES Computer-aided English Teaching English environment
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Content Creation and Production Choice: Film, Television and Related Production Enterprises
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作者 Michael B. Hoggan 《Journalism and Mass Communication》 2017年第5期249-258,共10页
The main purpose of this paper looks to examine notable inconsistencies in language and practice between production practices in film, television, Internet and related production models. The disconnect between actual ... The main purpose of this paper looks to examine notable inconsistencies in language and practice between production practices in film, television, Internet and related production models. The disconnect between actual production practices and how they are describedis notably affected by advances in technology. Furthermore, practitioners insider language usage, and a lack of understanding between process verses exhibition contributes to the divide within theory and practice of these models. By inspecting how traditional entertainment content is physically produced, making comparisons with the most common production models, the realms of production practices and terminology bring clarity and consistency. The language distinction illuminates any production process and is certainly critical for the producer responsible for putting together an experienced crew to shoot the project and vice versa concerning anyone looking for a job in those communities. Content creation for public consumption is expensive to produce, thus requires experienced people who must perform specific tasks on time and on budget, achieving entertainment goals and bringing in a profitable return. Understanding this information about production models is vital to the student or anyone preparing to be a part of the entertainment community. 展开更多
关键词 film production television production single camera production Intemet production
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Neural Network Nonlinear Predictive Control Based on Tent-map Chaos Optimization 被引量:5
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作者 宋莹 陈增强 袁著祉 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2007年第4期539-544,共6页
With the unique erggdicity, i rregularity, and.special ability to avoid being trapped in local optima, chaos optimization has been a novel global optimization technique and has attracted considerable attention for a... With the unique erggdicity, i rregularity, and.special ability to avoid being trapped in local optima, chaos optimization has been a novel global optimization technique and has attracted considerable attention for application in various fields, such as nonlinear programming problems. In this article, a novel neural network nonlinear predic-tive control (NNPC) strategy baseed on the new Tent-map chaos optimization algorithm (TCOA) is presented. Thefeedforward neural network'is used as the multi-step predictive model. In addition, the TCOA is applied to perform the nonlinear rolling optimization to enhance the convergence and accuracy in the NNPC. Simulation on a labora-tory-scale liquid-level system is given to illustrate the effectiveness of the proposed method. 展开更多
关键词 model-based predictive control neural network Tent-map chaos optimization nonlinear system
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A Q-based integrating interaction framework system for multi-agent coordination
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作者 王振杰 盛焕烨 肖正光 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2005年第4期424-433,共10页
Interaction is one of the crucial features of multl-agent systems, in which there are two kinds of interaction: agent-to-agent and human-to-agent. In order to unify the two kinds of interaction while designing multi-... Interaction is one of the crucial features of multl-agent systems, in which there are two kinds of interaction: agent-to-agent and human-to-agent. In order to unify the two kinds of interaction while designing multi-agent systems, this paper introduces Q language-a scenario description language for designing interaction among agents and humans. Based on Q, we propose an integrating interaction framework system for multi-agent coordination, in which Q scenarios are used to uniformly describe both kinds of interactions. Being in accordance to the characteristics of Q language, the Q-based framework makes the interaction process open and easily understood by the users. Additionally, it makes specific applications of multi-agent systems easy to be established by application designers. By applying agent negotiation in agent-mediated e-commerce and agent cooperation in interoperable information query on the Semantic Web, we illustrate how the presented framework for multi-agent coordination is implemented in concrete applications. At the same time, these two different applications also demonstrate usability of the presented framework and verify validity of Q language. 展开更多
关键词 interaction description language multi-agent coordination e-commence semantic web
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A Stream Pattern Matching Method for Traffic Analysis
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作者 Zhu Hui Li Hui Mo Can 《China Communications》 SCIE CSCD 2010年第6期86-93,共8页
In order to identify any traces of suspicious activities for the networks security, Network Traffic Analysis has been the basis of network security and network management. With the continued emergence of new applicati... In order to identify any traces of suspicious activities for the networks security, Network Traffic Analysis has been the basis of network security and network management. With the continued emergence of new applications and encrypted traffic, the currently available approaches can not perform well for all kinds of network data. In this paper, we propose a novel stream pattern matching technique which is not only easily deployed but also includes the advantages of different methods. The main idea is: first, defining a formal description specification, by which any series of data stream can be unambiguously descrbed by a special stream pattern; then a tree representation is constructed by parsing the stream pattern; at last, a stream pattern engine is constructed with the Non-t-mite automata (S-CG-NFA) and Bit-parallel searching algorithms. Our stream pattern analysis system has been fully prototyped on C programming language and Xilinx Vn-tex2 FPGA. The experimental results show the method could provides a high level of recognition efficiency and accuracy. 展开更多
关键词 traffic analysis stream pattern match non-finite automata bit-parallel
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