Robotic arms have been shown to be able to perform cyclic tasks with an openloop stable controller. However, model errors make it hard to predict in simulation what cycle the real arm will perform. This makes it difficult to accurately perform pick and place tasks using an open-loop stable controller. This paper presents an approach to make open-loop controllers follow the desired cycles more a...

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In this paper a new open platform for experimentation in tele-manipulation tasks is presented. The main goal is to obtain an open system with several features in order to evaluate different factors like kinematics relations between master and slave, haptic feedback, bilateral control, communications bandwidth, manmachine interface with the operator, and other factors that can affect the results...

Topic models based on latent Dirichlet allocation and related methods are used in a range of user-focused tasks including document navigation and trend analysis, but evaluation of the intrinsic quality of the topic model and topics remains an open research area. In this work, we explore the two tasks of automatic evaluation of single topics and automatic evaluation of whole topic models, and pr...

In this chapter we present a report of the ESWC 2014 Challenge on Linked Open Data-enabled Recommender Systems, which consisted of three tasks in the context of book recommendation: rating prediction in cold-start situations, top N recommendations from binary user feedback, and diversity in content-based recommendations. Participants were requested to address the tasks by means of recommendatio...

The purpose of this study was to compare the magnitude of knee kinematic coupling between genders and among open- and closed-chain tasks. A secondary purpose was to compare the consistency of knee kinematic coupling between genders and among open- and closed-chain tasks. Vector-coding methods were used to quantify coupling in the sagittal and transverse planes of the knee between full extension...

We evaluate the efficacy of an established OO/CBD development process (OPEN) in web development and propose new and amended Activities, Tasks, Techniques and Roles that should be included in OPEN in order to fully support the new demands of website construction and the delivery of business value on the web. Sixteen new Tasks are identified together with one new Activity. Four subtasks of partic...

SOCIAL ROLES VARY in the degree to which their constituent tasks are &dquo;closed&dquo; or &dquo;open&dquo; in character. At one extreme are roles such as assembly-line worker, where precise definitions communicate when the task starts, one’s progress in it, and when it ends. At the other extreme are roles such as student, where the tasks are highly open or never-ending. The role of student, in...

Crowdsourcing contests have emerged as an innovative way for firms to solve business problems by acquiring ideas from participants external to the firm. To facilitate such contests a number of crowdsourcing platforms have emerged in recent years. A crowdsourcing platform provides a twosided marketplace with one set of members (seekers) posting tasks, and another set of members (solvers) working...