In this paper we introduce a probabilistic-reasoning approach to detect Web robots (crawlers) from human visitors of Web sites. Our approach employs a Naive Bayes network to classify the HTTP sessions of a Web-server access log as crawler or human induced. The Bayesian network combines various pieces of evidence that were shown to distinguish between crawler and human HTTP traffic. The paramete...

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Robots provide us with a means to move around in, visualize, and interact with a remote physical world. We have exploited these physical properties coupled with the growing diversity of users on the World Wide Web (WWW) [1] to create a WWW based telerobotic remote environment browser. This browser, called Mechanical Gaze, allows multiple remote WWW users to control a robot arm with an attached ...

With the ongoing internationalization of virtual laboratories, the integration of such infrastructures becomes more important. The meanwhile commonly accepted ’glue’ for such legacy systems are serviceoriented architectures, based on standardized and accepted Web service standards. We present our concept of the ’experiment as a service’, where the idea of service-based architectures is applied ...

The aim of this research topic was to gather findings and hypothesis on how robotic devices have changed, or may change, ways of communication between people. In the last two decades, people acquired new means for communication; cellphones, e-mail, chat, SNS, and so on. With such communication media, along with the progress in information technologies and devices such as World Wide Web (WWW) an...

modeling and wrench feasible workspace analysis of a spatial cable suspended robots is presented. a six-cable spatial cable robot is used the same as stewart robots. due to slow motion of the robot we suppose the motion as pseudostatic and kinetostatic modeling is performed. various workspaces are defined and the results of simulation are presented on the basis of various workspaces and applied...

Torque control strategy is a common strategy to control robotic manipulators. However, it becomes complex duo to manipulator dynamics. In addition, position control of Permanent Magnet Synchronous Motors (PMSMs) is a complicated control. Therefore, tracking control of robots driven by PMSMs is a challenging problem. This article presents a novel tracking control of electrically driven robots wh...

The current paper presents techniques that facilitate mobile robots to be deployed as interactive agents in populated environments, such as museum exhibitions or trade shows. The mobile robots can be teleoperated over the Internet and this way provide remote access to distant users. Throughout this paper we describe several key techniques that have been developed in the context of relevant EU-I...

This paper presents techniques that facilitate mobile robots to be deployed as interactive agents in populated environments such as museum exhibitions or trade shows. The mobile robots can be tele-operated over the Internet and, this way, provide remote access to distant users. Throughout this paper we describe several key techniques that have been developed in this context. To support safe and...

RÉSUMÉ. Les sites web sont par nature dynamiques, leur contenu et leur structure changeant au fil du temps; de nombreuses pages sur le web sont produites par des systèmes de gestion de contenu (CMS). Les outils actuellement utilisés par les archivistes du web pour préserver le contenu du web collectent et stockent de manière aveugle les pages web, en ne tenant pas compte du CMS sur lequel le si...