近日,东南大学计算机与科学工程学院白如帆在人工智能领域国际期刊《Artificial Intelligence》(AIJ,CCF A)上发表题为“On the Computation of Mixed Strategies for Security Games with General Defending Requirements”的论文,介...近日,东南大学计算机与科学工程学院白如帆在人工智能领域国际期刊《Artificial Intelligence》(AIJ,CCF A)上发表题为“On the Computation of Mixed Strategies for Security Games with General Defending Requirements”的论文,介绍该团队在智能体安全博弈领域内的最新研究成果,白如帆老师为论文唯一第一作者,这也是东南大学第二次以第一、通信单位身份在该期刊发表论文。展开更多
A defender–attacker–target problem with non-moving target is considered.This problem is modelled by a pursuit-evasion zero-sum differential game with linear dynamics and quadratic cost functional.In this game,the pu...A defender–attacker–target problem with non-moving target is considered.This problem is modelled by a pursuit-evasion zero-sum differential game with linear dynamics and quadratic cost functional.In this game,the pursuer is the defender,while the evader is the attacker.The objective of the pursuer is to minimise the cost functional,while the evader has two objectives:to maximise the cost functional and to keep a given terminal state inequality constraint.The open-loop saddle point solution of this game is obtained in the case where the transfer functions of the controllers for the defender and the attacker are of arbitrary orders.展开更多
In this paper the basic principle and the problems meriting attention in the design and application of active ear defenders are discussed quantitatively. A feasible structure and its experimental results are given. It...In this paper the basic principle and the problems meriting attention in the design and application of active ear defenders are discussed quantitatively. A feasible structure and its experimental results are given. It is illustrated that the chief significance of ' active ' is to change the mechanical impedance of the ear defender accordingly, and because of this mechanism, the noise attenuation effectiveness in the low frequency range is improved.展开更多
Objectives:This study investigates the association between victimization experience and the tendency to defend on behalf of victims during school bullying incidents in public settings,with a focus on the mediating eff...Objectives:This study investigates the association between victimization experience and the tendency to defend on behalf of victims during school bullying incidents in public settings,with a focus on the mediating effect of empathy and the moderating role of school level among Chinese children and adolescents.Methods:Data were collected by a cross-sectional survey.A total of 1491 students in Grades 4–11 participated(Boys=52.8%;Mean_(age)=13.00 years,Standard Deviation_(age)=2.31).Structural equation modeling is employed to test the hypotheses.Results:The results indicate that empathy measures partially mediate the relationship between victimization experience and defending tendency in public in-school bullying situations.In particular,individuals with a history of victimization typically demonstrate lower levels of empathy.They are less likely to protect victims in school bullying situations in the presence of others,which suggests that empathy plays a significant mediating role in this relationship.Group differences were found between primary and secondary school students,which indicates that the hypothesized model should be considered through a developmental perspective.Conclusions:The findings of this study emphasize the importance of children’s benign peer relationships,and practitioners are encouraged to prevent victimization in schools and care for students who have been victimized;specific measures include cultivating empathy,teaching defending skills that have been found to help reduce the adverse effects of victimization,and encouraging prosocial behavior during children's socialization development.展开更多
An approach of defending against Distributed Denial of Service (DDoS) attack based on flow model and flow detection is presented. The proposed approach can protect targets from DDoS attacking, and allow targets to pro...An approach of defending against Distributed Denial of Service (DDoS) attack based on flow model and flow detection is presented. The proposed approach can protect targets from DDoS attacking, and allow targets to provide good service to legitimate traffic under DDoS attacking, with fast reaction. This approach adopts the technique of dynamic comb filter, yields a low level of false positives of less than 1.5%, drops similar percentage of good traffic, about 1%, and passes neglectable percentage of attack bandwidth to the victim, less than 1.5%. The prototype of commercial product, D-fighter, is developed by implementing this proposed approach on Intel network processor platform IXP1200.展开更多
Since the publication of Hemingway’s“Indian Camp”in 1924,many scholars has considered Doctor Adams to be insensitive,cold-hearted,ethically immoral.Some others labeled him as a racist and a sexist.After a scrupulou...Since the publication of Hemingway’s“Indian Camp”in 1924,many scholars has considered Doctor Adams to be insensitive,cold-hearted,ethically immoral.Some others labeled him as a racist and a sexist.After a scrupulous and strenuous close reading together with extensive reviewing and analyzing of relevant references,the author of this paper finds that Uncle George has always been misinterpreted over the time.This paper aims to point out the misunderstanding,misinterpretation or even distortion in the previous researches,in an attempt to defend for Doctor Adams and put the record straight.展开更多
LIU Jie still remembers the challenges she faced in the fight against the AIDS epidemic during her stint as a medical volunteer in Nigeria six years ago. Ironically, it was not the lack of medicine or funding that was...LIU Jie still remembers the challenges she faced in the fight against the AIDS epidemic during her stint as a medical volunteer in Nigeria six years ago. Ironically, it was not the lack of medicine or funding that was the biggest hurdle, but the difficulty in effectively delivering the treatment drugs and services.展开更多
文摘近日,东南大学计算机与科学工程学院白如帆在人工智能领域国际期刊《Artificial Intelligence》(AIJ,CCF A)上发表题为“On the Computation of Mixed Strategies for Security Games with General Defending Requirements”的论文,介绍该团队在智能体安全博弈领域内的最新研究成果,白如帆老师为论文唯一第一作者,这也是东南大学第二次以第一、通信单位身份在该期刊发表论文。
文摘A defender–attacker–target problem with non-moving target is considered.This problem is modelled by a pursuit-evasion zero-sum differential game with linear dynamics and quadratic cost functional.In this game,the pursuer is the defender,while the evader is the attacker.The objective of the pursuer is to minimise the cost functional,while the evader has two objectives:to maximise the cost functional and to keep a given terminal state inequality constraint.The open-loop saddle point solution of this game is obtained in the case where the transfer functions of the controllers for the defender and the attacker are of arbitrary orders.
文摘In this paper the basic principle and the problems meriting attention in the design and application of active ear defenders are discussed quantitatively. A feasible structure and its experimental results are given. It is illustrated that the chief significance of ' active ' is to change the mechanical impedance of the ear defender accordingly, and because of this mechanism, the noise attenuation effectiveness in the low frequency range is improved.
基金supported by the Philosophy and Social Science Foundation of Hunan Province(Grant Number 21YBQ005).
文摘Objectives:This study investigates the association between victimization experience and the tendency to defend on behalf of victims during school bullying incidents in public settings,with a focus on the mediating effect of empathy and the moderating role of school level among Chinese children and adolescents.Methods:Data were collected by a cross-sectional survey.A total of 1491 students in Grades 4–11 participated(Boys=52.8%;Mean_(age)=13.00 years,Standard Deviation_(age)=2.31).Structural equation modeling is employed to test the hypotheses.Results:The results indicate that empathy measures partially mediate the relationship between victimization experience and defending tendency in public in-school bullying situations.In particular,individuals with a history of victimization typically demonstrate lower levels of empathy.They are less likely to protect victims in school bullying situations in the presence of others,which suggests that empathy plays a significant mediating role in this relationship.Group differences were found between primary and secondary school students,which indicates that the hypothesized model should be considered through a developmental perspective.Conclusions:The findings of this study emphasize the importance of children’s benign peer relationships,and practitioners are encouraged to prevent victimization in schools and care for students who have been victimized;specific measures include cultivating empathy,teaching defending skills that have been found to help reduce the adverse effects of victimization,and encouraging prosocial behavior during children's socialization development.
基金Supported by the National High Technology Research and Development Program of China (863 Program)(No.2003AA142080, 2005AA775060)the National Natural Sicence Foundation of China(No.60203004)National Basic Research Program of China (973Program) (No.2003CB314805)the National Outstanding Youth Foundation (No.60325102)
文摘An approach of defending against Distributed Denial of Service (DDoS) attack based on flow model and flow detection is presented. The proposed approach can protect targets from DDoS attacking, and allow targets to provide good service to legitimate traffic under DDoS attacking, with fast reaction. This approach adopts the technique of dynamic comb filter, yields a low level of false positives of less than 1.5%, drops similar percentage of good traffic, about 1%, and passes neglectable percentage of attack bandwidth to the victim, less than 1.5%. The prototype of commercial product, D-fighter, is developed by implementing this proposed approach on Intel network processor platform IXP1200.
文摘Since the publication of Hemingway’s“Indian Camp”in 1924,many scholars has considered Doctor Adams to be insensitive,cold-hearted,ethically immoral.Some others labeled him as a racist and a sexist.After a scrupulous and strenuous close reading together with extensive reviewing and analyzing of relevant references,the author of this paper finds that Uncle George has always been misinterpreted over the time.This paper aims to point out the misunderstanding,misinterpretation or even distortion in the previous researches,in an attempt to defend for Doctor Adams and put the record straight.
文摘LIU Jie still remembers the challenges she faced in the fight against the AIDS epidemic during her stint as a medical volunteer in Nigeria six years ago. Ironically, it was not the lack of medicine or funding that was the biggest hurdle, but the difficulty in effectively delivering the treatment drugs and services.
