In this case study in knowledge engineering and data mining, we implement a recognizer for two variations of thèbull ¯ag' technical charting heuristic and use this recognizer to discover trading rules on the NYSE Composite Index. Out-of-sample results indicate that these rules are effective. q 2002 Elsevier Science Ltd. All rights reserved.

Diagram describing texts are integral part of science and engineering subjects including geometry, physics, engineering drawing, etc. In order to understand such text, one, at first, tries to draw or perceive the underlying diagram. For perception of the blind students such diagrams need to be drawn in some non-visual accessible form like tactile graphics. Technologies for producing tactile gra...

This paper attempts to bridge the languages of traditional technical graphics and scientific data visualization. A theoretical structure for guiding the generation and description of scientific visualizations is proposed. Examples are given as to how this structure can be used to generate visualizations of ÔsystemsÕ that might be explored by a scientist, engineer, or technician. Finally, how th...

Using a large, individual-level wage data set, we examine the impact of a major technological innovation—the steam engine—on the demand for skills in the merchant shipping industry. We find that the technical change created a new demand for engineers, a skilled occupation. It had a deskilling effect on production work— moderately skilled able-bodied seamen were replaced by unskilled engine room...

This [chapter] reviews advances in hardware learning and adaptation in synthetic neural systems. Over the last decade, research in the eld has intensi ed, drawing inspiration across several science and engineering disciplines. This review brie y covers neural models, implementation technology, architectural constraints, and system applications of learning in hardware.

One of the skills that all engineering professional must develop very extensively during their formation is the mental management of the three dimensional reality in which they develop their professional actions. This competence is called spatial skill, a cognitive skill which can be improved with proper training. We have developed a series of learning activities for students in order to acquir...

We present a new scheme, which is based on the cost of interactively correcting detection errors, for performance evaluation of engineering drawings recognition algorithms. We correct an actual output graphic objects so that they to the expected output in a graphics editing tool using GUI, like Autocad. Through experiments, We define the time spent on the editing operations as the output elemen...

We describe an improved implementation of ANON, a schema-driven image analysis system capable of producing high level interpretations of greyscale images of mechanical engineering drawings. The system has been extended to incorporate a drawing memory into which completed schema instances are placed and which may be accessed as an integral part of ANON's knowledge directed visual search. This me...

In January 1993, we received NSF funding to develop a pre-graphics course for freshman engineering majors who are weak in 3-D spatial visualization skills. A text and computer lab exercises utilizing I-DEAS software were written specifically for this course. The course is 3-credits (quarter system) with two hours of lecture and two hours of computer lab each week. It was offered at Michigan Tec...