Web sites are routinely visited by automated agents known as Web robots, that perform acts ranging from the beneficial, such as indexing for search engines, to the malicious, such as searching for vulnerabilities, attempting to crack passwords, or spamming bulletin boards. Previous work to identify malicious robots has relied on ad-hoc signature matching and has been performed on a per-site bas...

Considering cold, dense quark matter with two massless quark flavors, we demonstrate how, in a self-consistent calculation in the framework of QCD, the condensation of Cooper pairs induces a non-vanishing background color field. This background color field has precisely the right magnitude to cancel tadpole contributions and thus ensures overall color neutrality of the two-flavor color supercon...

Overview For the past ten weeks, we have been working on developing a robot using the LEGO Mindstorms Robotic Invention System. This robot, Terminus, accessible on the Internet as a Web service, can move anywhere on campus through its connection to the wireless network. In this paper we provide background information on the various technologies used, detailed information about our research, an ...

The Internet contains data in a variety of forms in a large number of websites. The content of websites and interactions through websites are the subject of academic research. Research about web content and web interactions can be facilitated through the use of automated Internet data collection agents. The unique characteristics of the Internet and the new capabilities of the data collection a...

in this paper, an intelligent controller is applied to control omni-directional robots motion. first, the dynamics of the three wheel robots, as a nonlinear plant with considerable uncertainties, is identified using an efficient algorithm of training, named lolimot. then, an intelligent controller based on brain emotional learning algorithm is applied to the identified model. this emotional lea...

The kinematics and dynamics of two industrial cooperating robots are presented in this paper. The NOC (natural orthogonal complement) method is used to derive the dynamical equations for the motion of two cooperating robots. The joint torques of the two robots are determined based on the optimization techniques in order to obtain unique solution for joint torques. To this end, minimizing the cr...

due to their advantages, omni-directional mobile robots have found many applications especially in robotic soccer competitions. however, omni directional navigation system, omni-vision system and kicking mechanism in such mobile robots have not ever been combined. this situation brings the idea of a robot with no head direction into existence, a comprehensive omni directional mobile robot. such...

Cloud computing allows robots to offload computation and share information as well as skills. Visual SLAM is one of the intensively computational tasks for mobile robots. It can benefit from the cloud. In this paper, we propose a novel cloud robotics platform named RSE-PF for distributed visual SLAM with close attention to the infrastructure of the cloud. We implement it with Amazon Web Service...

This paper presents a design and implementation of cooperative edge detection of multiple mobile robots in an indoor environment. We propose a method to fuse sensory data from two mobile robots at different locations based on Kalman filtering techniques. To demonstrate the proposed method, we constructed two mobile robots for experimental purpose. A USB Web camera was put at the front of each r...

Web Crawlers (also called Web Spiders or Robots), are programs used to download documents from the internet. Simple crawlers can be used by individuals to copy an entire web site to their hard drive for local viewing. For such small-scale tasks, numerous utilities like wget exist. In fact, an entire web crawler can be written in 20 lines of Python code. Indeed, the task is inherently simple: th...