Human Flesh Search is an explosive Web phenomenon these years in China, especially when new media, such as Weibo, appeared. In this research, we present the empirical studies about growing patterns of participated Hum...
详细信息
Mobile robot navigation in smart environment has always been one of the most critical issues in robot research. Deployment of wireless sensor network (WSN) in new environment can provide the mobile robot with efficien...
详细信息
Mobile robot navigation in smart environment has always been one of the most critical issues in robot research. Deployment of wireless sensor network (WSN) in new environment can provide the mobile robot with efficient aid of navigation and tracking. In this paper, we present a feasible scheme of WSN-aided mobile robot navigation which includes initial localization of mobile robot, orientation adjustment, network-layer path planning, motion tracking and correction based on RSSI in Grid-pattern WSN. Unlike other methods of robot navigation which might require a complex and intelligent robotic system for mapping and path planning, the aim of our method is to transfer complex environment detection and calculation from the robot to network and to decrease the reliance of intelligence on the robot itself. Experimental result shows that our proposed scheme is well-performed and can effectively navigate the robot equipped only with simply sensors for communication and obstacle avoidance.
Social media is widely utilized in the tobacco control campaigns. It is a great challenge to evaluate the efficiency of tobacco control policies on social network sites and find gaps among tobacco-oriented social netw...
详细信息
This paper focuses on macro prediction of corporate equipment maintenance expenditure, adopts ARMA to establish the model for historical data of corporate equipment maintenance expenditure and makes demand analysis an...
详细信息
Agent-based evacuation modeling approach is gained more and more attention for investigating human cognitive capabilities and social behaviors in building fires. This paper mainly overviews the research about various ...
详细信息
With the development of image sensors and embedded technology, smart cameras become one of the most important developing directions because of its advantages in small size, low power consumption, low cost and high rel...
详细信息
With the development of image sensors and embedded technology, smart cameras become one of the most important developing directions because of its advantages in small size, low power consumption, low cost and high reliability. In this paper, we present the development and current situation of smart cameras. Then the system structure and key technology of smart cameras are described in detail. In the end, we introduce the applications of smart cameras, and the development trend of smart cameras.
Agent-based evacuation modeling approach is gained more and more attention for investigating human cognitive capabilities and social behaviors in building fires. This paper mainly overviews the research about various ...
详细信息
Agent-based evacuation modeling approach is gained more and more attention for investigating human cognitive capabilities and social behaviors in building fires. This paper mainly overviews the research about various agent-based evacuation models. For the decision-making reflects the intelligence of agent individual, we define three types of behavior decision-making models for agent individual based on the collected literatures and sum up the characteristics of each type. Aiming at crowd' important influence on evacuation processes, we also sum up two types of agent-based crowd modeling approaches to simulate crowd evacuation processes and give corresponding cases. Finally, after summing up the existing problems, the outlooks of the research from computational experiments point of view is proposed.
An average consensus protocol is proposed for discrete-time double-integrator multi-agent systems with communication noises under fixed topologies. The proposed consensus protocol is composed of two parts: the agent&...
详细信息
An average consensus protocol is proposed for discrete-time double-integrator multi-agent systems with communication noises under fixed topologies. The proposed consensus protocol is composed of two parts: the agent's own state feedback and the relative states between the agent and its neighbor agents. Due to the existence of communication noises, the relative states cannot be obtained accurately. To attenuate the noise effect, a time-varying consensus gain a(k) is applied to the relative states in the proposed protocol. Hence, the closed-loop dynamics of multi-agent systems is a linear stochastic difference equation with variable coefficients. Fortunately, the state transition matrix of this stochastic system can be solved, and the dynamical behavior of linear multi-agent systems can therefore be determined. It is proved that the proposed protocol is able to solve the mean square average consensus problem if and only if the topology graph is connected;and the time-varying gain a(k) satisfies the stochastic-approximation type conditions (Omission)。
暂无评论