In the present article, we apply the modified piecewise variational iteration method to obtain the approximate analytical solutions of the differential equations with piecewise continuous arguments. This technique pro...In the present article, we apply the modified piecewise variational iteration method to obtain the approximate analytical solutions of the differential equations with piecewise continuous arguments. This technique provides a sequence of functions which converges to the exact solution of the problem. Moreover, this method reduces the volume of calculations because it does not need discretization of the variables, linearization or small perturbations. The results seem to show that the method is very reliable and convenient for solving such equations.展开更多
To detect more attacks aiming at key security data in program behavior-based anomaly detection,the data flow properties were formulated as unary and binary relations on system call arguments.A new method named two-phr...To detect more attacks aiming at key security data in program behavior-based anomaly detection,the data flow properties were formulated as unary and binary relations on system call arguments.A new method named two-phrase analysis(2PA)is designed to analyze the efficient relation dependency,and its description as well as advantages are discussed.During the phase of static analysis,a dependency graph was constructed according to the program's data dependency graph,which was used in the phase of dynamic learning to learn specified binary relations.The constructed dependency graph only stores the information of related arguments and events,thus improves the efficiency of the learning algorithm and reduces the size of learned relation dependencies.Performance evaluations show that the new method is more efficient than existing methods.展开更多
This paper deals with the stability of linear multistep methods for multidimensional differential systems with distributed delays. The delay-dependent stability of linear multistep methods with compound quadrature rul...This paper deals with the stability of linear multistep methods for multidimensional differential systems with distributed delays. The delay-dependent stability of linear multistep methods with compound quadrature rules is studied. Several new sufficient criteria of delay-dependent stability are obtained by means of the argument principle. An algorithm is provided to check delay-dependent stability. An example that illustrates the effectiveness of the derived theoretical results is given.展开更多
Legal English isvery important for the study and the usage of law , combing personal study and usage of law, I summa-rize the teaching method of legal English to help those who want to study and use Legal English to m...Legal English isvery important for the study and the usage of law , combing personal study and usage of law, I summa-rize the teaching method of legal English to help those who want to study and use Legal English to make some progress.展开更多
对话商务已成为消费者最常用的与商家沟通的渠道之一,聊天机器人在其中的应用已越来越广泛。学术界有必要探究人与智能体间的交互行为规律,从而为聊天机器人的设计与应用提供指导。本文对比商务对话中的人机交互与人人交互,研究在线客...对话商务已成为消费者最常用的与商家沟通的渠道之一,聊天机器人在其中的应用已越来越广泛。学术界有必要探究人与智能体间的交互行为规律,从而为聊天机器人的设计与应用提供指导。本文对比商务对话中的人机交互与人人交互,研究在线客服对话中,用户对交互对象的认知是机器人或人工以及采用双面论证或单面论证的对话设计对交流效果和体验的影响。本研究采用实验室实验,使用人机交互领域的沃兹原型(Wizard of Oz)方法。结果表明,在人机对话中,双面论证对用户的购买意愿无显著影响,而在人人对话中,双面论证对用户的购买意愿产生负面影响。当用户面对机器人客服时,双面论证对客服可信度和用户愉悦度的积极影响比人人对话中更明显。展开更多
文摘In the present article, we apply the modified piecewise variational iteration method to obtain the approximate analytical solutions of the differential equations with piecewise continuous arguments. This technique provides a sequence of functions which converges to the exact solution of the problem. Moreover, this method reduces the volume of calculations because it does not need discretization of the variables, linearization or small perturbations. The results seem to show that the method is very reliable and convenient for solving such equations.
文摘To detect more attacks aiming at key security data in program behavior-based anomaly detection,the data flow properties were formulated as unary and binary relations on system call arguments.A new method named two-phrase analysis(2PA)is designed to analyze the efficient relation dependency,and its description as well as advantages are discussed.During the phase of static analysis,a dependency graph was constructed according to the program's data dependency graph,which was used in the phase of dynamic learning to learn specified binary relations.The constructed dependency graph only stores the information of related arguments and events,thus improves the efficiency of the learning algorithm and reduces the size of learned relation dependencies.Performance evaluations show that the new method is more efficient than existing methods.
基金Project supported by the National Natural Science Foundation of China(No.11471217)
文摘This paper deals with the stability of linear multistep methods for multidimensional differential systems with distributed delays. The delay-dependent stability of linear multistep methods with compound quadrature rules is studied. Several new sufficient criteria of delay-dependent stability are obtained by means of the argument principle. An algorithm is provided to check delay-dependent stability. An example that illustrates the effectiveness of the derived theoretical results is given.
文摘Legal English isvery important for the study and the usage of law , combing personal study and usage of law, I summa-rize the teaching method of legal English to help those who want to study and use Legal English to make some progress.
文摘对话商务已成为消费者最常用的与商家沟通的渠道之一,聊天机器人在其中的应用已越来越广泛。学术界有必要探究人与智能体间的交互行为规律,从而为聊天机器人的设计与应用提供指导。本文对比商务对话中的人机交互与人人交互,研究在线客服对话中,用户对交互对象的认知是机器人或人工以及采用双面论证或单面论证的对话设计对交流效果和体验的影响。本研究采用实验室实验,使用人机交互领域的沃兹原型(Wizard of Oz)方法。结果表明,在人机对话中,双面论证对用户的购买意愿无显著影响,而在人人对话中,双面论证对用户的购买意愿产生负面影响。当用户面对机器人客服时,双面论证对客服可信度和用户愉悦度的积极影响比人人对话中更明显。
基金Supported by Natural Science Foundation of Heilongjiang Province(A200602)the Science Research Foundation(HITC200710)the Natural Scientific Research Innovation Foundation(HIT.NSRIF.2009053)
