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Download full textMcDonald, Frederick J. – 1978
The sharply drawn distinction between research and evaluation, and the equally sharp distinction between the carefully controlled laboratory-type experiment and the study occurring in the field, are seen as arbitrary and not very helpful. In illustrating this thesis, the author develops a design generally regarded as a "research" design…
Descriptors: Data Analysis, Data Processing, Educational Research, Evaluation
Peer reviewedConstantinescu, Cornel; Storer, James A. – Information Processing & Management, 1994
Presents a new image compression algorithm that employs some of the most successful approaches to adaptive lossless compression to perform adaptive online (single pass) vector quantization with variable size codebook entries. Results of tests of the algorithm's effectiveness on standard test images are given. (12 references) (KRN)
Descriptors: Algorithms, Coding, Data Processing, Evaluation
Peer reviewedMoffat, Alistair; And Others – Information Processing & Management, 1994
Evaluates the performance of different methods of data compression coding in several situations. Huffman's code, arithmetic coding, fixed codes, fast approximations to arithmetic coding, and splay coding are discussed in terms of their speed, memory requirements, and proximity to optimal performance. Recommendations for the best methods of…
Descriptors: Coding, Data Processing, Evaluation, Experiments
Peer reviewedCulik, Karel II; Kari, Jarkko – Information Processing & Management, 1994
Presents an inference algorithm that produces a weighted finite automata (WFA), in particular, the grayness functions of graytone images. Image-data compression results based on the new inference algorithm produces a WFA with a relatively small number of edges. Image-data compression results alone and in combination with wavelets are discussed.…
Descriptors: Algorithms, Coding, Comparative Analysis, Data Processing
Petrosko, Joseph M.; And Others – 1975
This paper deals with systems concepts, particularly those related to management information systems (MIS) as exemplified by the Center for the Study of Evaluation (CSE) Formative Evaluation Kit. The concept of MIS is in numerous ways more flexible than might be imagined from a cursory reading of the business-management literature. An MIS does not…
Descriptors: Administration, Computer Oriented Programs, Data Processing, Educational Planning
Giroux, Roger M. – 1975
The development of a computer-based instructional management system for the Duluth, Minnesota school system is described. The project is designed to relate observed or measured student learning in cognitive and affective areas to the costs of instructional services. Individual student data are used for the cost-effectiveness analyses supported by…
Descriptors: Cognitive Measurement, Computer Programs, Cost Effectiveness, Data Collection
