We present a model of absolute autonomy and power in agent systems. This absolute sense of autonomy captures the agent’s liberty over an agent’s preferences. Our model characterizes an affinity between autonomy and power. We argue that agents with similar individual autonomy and power experience an adjusted level of autonomy and power due to being in a group of like agents. We then illustrate o...

We sharply characterize the performance of different penalization schemes for the problem of selecting the relevant variables in the multi-task setting. Previous work focuses on the regression problem where conditions on the design matrix complicate the analysis. A clearer and simpler picture emerges by studying the Normal means model. This model, often used in the field of statistics, is a sim...

UNLABELLED Cognitive work analysis (CWA) as an analytical approach for examining complex sociotechnical systems has shown success in modelling the work of single operators. The CWA approach incorporates social and team interactions, but a more explicit analysis of team aspects can reveal more information for systems design. In this paper, Team CWA is explored to understand teamwork within a bir...

An experimental study is presented, which investigates the process of building qualitative simulation models using HOMER, a tool for building qualitative models of systems. HOMER consists of a number of dedicated editors aiming at decomposing the complexity of the model building process into more manageable subtasks. The aims of the present study are a) validating the original task analysis und...

In conventional form-based dialogue manager, the task structure of a given task domain is built on E-form or flat slot structure, which some useful structure information of the task domain has been lost. This paper describes a hierarchical task structure model that is domain independent at least for a class of task domains. Based on the task structure model, a rule based dialogue management, wh...

In order to transmit, share and store human knowledge, it is important for a robot to be able to acquire task models and skills by observing human actions. Since vision plays an important role for observation, we propose a technique for measuring the position and posture of objects and hands in 3-dimensional space at high speed and with high precision by vision. Next, we show a framework for an...

Rigorous analysis and evaluation of real implemented robotic systems for intelligent tasks are rarely performed. Such systems are often extremely complicated , depending not only onìnteresting' theoretical parameters and models, but on many assumptions and constants which may be set almost arbitrarily. We view all task implementations as particular parame-terizations of the task goals they repr...

One of the major criticisms leveled at task-based language teaching (TBLT), despite its countless merits, is developing fluency at the cost of accuracy. The post-task stage affords a number of options to counteract this downside through task repetition and task recycling. These two options are considered to positively affect learners' oral performance in terms of fluency, accuracy, and complexi...