Evolution of Spatial Data Templates for Object Classification

Sensing devices are commonly used for the detection and classification of subsurface objects, particularly for the purpose of eradicating Unexploded Ordnance (UXI) from military sites. UXO detection and classification is inherently different to pattern recognition in image processing in that signal responses for the same object will differ greatly when the object is at different depths and orientations. That is, subsurface objects span a multidimensional space with dimensions including depth, azimuth and declination. Thus the search for identifying an instance of an object is extremely large. Our approach is to use templates of actual responses from scans of known objects to model object categories. We intend to justify a method whereby Genetic Algorithms are used to improve the template libraries with respect to their classification characteristics. This chapter describes the application, key features of the Genetic Algorithms tested and the results achieved

Geschiedenis der gemeente Schelle : de heerlijkheden van het land van Mechelen

door J. B. Stockmans & Joh.-Theod. de Raad

Introductory programming: examining the exams

This paper describes a classification scheme that can be used to investigate the characteristics of introductory programming examinations. The scheme itself is described and its categories explained. We describe in detail the process of determining the level of agreement among classifiers, that is, the inter-rater reliability of the scheme, and we report the results of applying the classification scheme to 20 introductory programming examinations. We find that introductory programming examinations vary greatly in the coverage of topics, question styles, skill required to answer questions and the level of difficulty of questions. This study is part of a project that aims to investigate the nature and composition of formal examination instruments used in the summative assessment of introductory programming students, and the pedagogical intentions of the educators who construct these instruments