an important issue in power generation and petrochemical industries is the monitoring of pipe wall thickness and corrosion/erosion rate. the pipes are usually subject to erosive and/or corrosive environments and any failure could be catastrophic. while periodic manual ultrasonic thickness measurement is the common practice in many industries, in certain cases, where higher accuracies are requir...

Explanation-Based Learning (EBL) depends on the ability of a system to explain to itself, based on the domain theory, that a given training example is a member of the target concept. However, in many complex domains it is often intractable to do this. In this paper I introduce a learning technique called Lazy Explanation-Based Learning as a solution to the problem of intractable explanation pro...

This paper describes methods aimed at increasing the eeciency of cutset-based assembly sequence planners by: (i) providing an alternative representation to precedence constraints which is easy to maintain and facilitates the logical evaluation of assembly operations, (ii) maximizing the reuse of previous results of assembly operation feasibility evaluations and (iii) using exact and heuristic a...

The credit assignment problem (which agents get credit or blame for system performance) is a key research area. For a team of agents collaborating to achieve a goal, the effectiveness of each individual agent must be calculated in order to give adequate feedback to each agent. We use the Difference Evaluation Function to find agent-specific feedback. The Difference Evaluation Function has given...

this study aimed to investigate the spatial perception and evaluation of the place-based affordance of mosques in tehran. reviewing the literature and applying gibson`s affordance and canter`s place theory, the new model called place-based affordance is proposed. in this model, each location contains two potential types of symbolic and behavioural affordance. accordingly, throughout history, be...