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McCabe, John; Ransom, Marshall R. – Mathematics Teacher, 1979
A class's struggle with the computer solution of a nontrivial problem is related. The use of algorithms allowed a trial-and-error approach.
Descriptors: Algorithms, Computer Programs, Instruction, Number Concepts
Wiggins, Richard – Searcher, 2003
Discussion of ranking systems used in various settings, including college football and academic admissions, focuses on the Google search engine. Explains the PageRank mathematical formula that scores Web pages by connecting the number of links; limitations, including authenticity and accuracy of ranked Web pages; relevancy; adjusting algorithms;…
Descriptors: Algorithms, Indexes, Mathematical Formulas, Relevance (Information Retrieval)
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Philipp, Randolph A. – Teaching Children Mathematics, 1996
Encourages teachers to allow opportunities for students to present alternative algorithms, whether the students invent them or learn them, then lead a discussion about the meaning of the operations with the goal of students understanding why the algorithm works. Teachers with students of similar racial and ethnic backgrounds should encourage the…
Descriptors: Algorithms, Computation, Elementary Education, Mathematical Applications
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Garfield, Eugene; Pudovkin, A. I.; Istomin, V. S. – Journal of the American Society for Information Science and Technology, 2003
Provides an applications-oriented view of algorithmic historiography and how it relates to understanding scientific paradigms. Discusses HistCite[TM], a program that allows scholars to identify significant works on a given topic; paradigm shifts; a genealogic approach; citation analyses; correcting variations in citations; and bibliographic…
Descriptors: Algorithms, Citation Analysis, Computer Software, Genealogy
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Chen, Hsinchun; Lally, Ann M.; Zhu, Bin; Chau, Michael – Journal of the American Society for Information Science and Technology, 2003
Discussion of the information needs of medical professionals and researchers focuses on the architecture of a Web portal designed to integrate advanced searching and indexing algorithms, an automatic thesaurus, and self-organizing map technologies to provide searchers with fine-grained results. Reports results of evaluation of spider algorithms…
Descriptors: Algorithms, Evaluation Methods, Indexing, Information Needs
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Lopez-Pujalte, Cristina; Guerrero Bote, Vicente P.; Moya Anegon, Felix de – Information Processing & Management, 2002
Discussion of information retrieval, query optimization techniques, and relevance feedback focuses on genetic algorithms, which are derived from artificial intelligence techniques. Describes an evaluation of different genetic algorithms using a residual collection method and compares results with the Ide dec-hi method (Salton and Buckley, 1990…
Descriptors: Algorithms, Artificial Intelligence, Comparative Analysis, Evaluation Methods
Lempel, Ronny; Moran, Shlomo – Proceedings of the ASIST Annual Meeting, 2002
Discusses the use of link structure analysis in World Wide Web information retrieval and in retrieval and ranking algorithms of search engines. Presents two techniques which bias co-citation based link analyses towards favorable Web pages and away from undesired pages, and are then integrated into existing link-analyzing algorithms. (Author/LRW)
Descriptors: Algorithms, Citation Analysis, Information Retrieval, Search Engines
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Tseng, Yuen-Hsien – Journal of the American Society for Information Science and Technology, 2002
Reports an approach to automatic thesaurus construction for Chinese documents. Presents an effective Chinese keyword extraction algorithm. Compared to previous studies, this method speeds up the thesaurus generation process drastically. It also achieves a similar percentage level of term relatedness. Includes three tables and four figures.…
Descriptors: Algorithms, Automation, Chinese, Information Processing
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DeSarbo, Wayne S.; And Others – Psychometrika, 1989
A method is presented that simultaneously estimates cluster membership and corresponding regression functions for a sample of observations or subjects. This methodology is presented with the simulated annealing-based algorithm. A set of Monte Carlo analyses is included to demonstrate the performance of the algorithm. (SLD)
Descriptors: Algorithms, Cluster Analysis, Estimation (Mathematics), Least Squares Statistics
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Gantner, Thomas E. – Mathematics Teacher, 1990
Presents two methods for replacing a series by one converging more rapidly: regrouping the terms of a series and manipulations of power series. Describes a general algorithm for approximating the natural logarithm of any number. (YP)
Descriptors: Algorithms, Logarithms, Mathematical Concepts, Mathematical Formulas
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Spiegler, Israel; Elata, Smadar – Information Processing and Management, 1988
Presents a model for the a priori analysis of natural language queries which uses an algorithm to transform the query into a logical pattern that is used to determine the answerability of the query. The results of testing by a prototype system implemented in PROLOG are discussed. (20 references) (CLB)
Descriptors: Algorithms, Computational Linguistics, Databases, Information Retrieval
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Nakkouzi, Ziad S.; Eastman, Caroline M. – Journal of the American Society for Information Science, 1990
Discusses the problems caused for both users and systems by queries containing negation, and presents an algorithm for transforming Boolean queries with negated terms into queries without negation using a hierarchical thesaurus. A set of user requests submitted to an academic library are also examined to determine the pattern and frequency of use…
Descriptors: Academic Libraries, Algorithms, Behavior Patterns, Higher Education
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Book, Ronald V. – American Mathematical Monthly, 1988
The "word problem" is stated for a given collection. Facts regarding Dehn's Algorithm, definition of Thue systems, a rewriting system, lemmas and corollaries are provided. The situation is examined where the monoid presented by a finite Thue system is a group. (DC)
Descriptors: Abstract Reasoning, Algebra, Algorithms, College Mathematics
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Pollak, Henry – Australian Mathematics Teacher, 1989
Possible ways of mechanization for counting using a binary system are discussed. Shows a binary representation of the numbers and geometric models having eight triples of lamps. Provides three problem sets. (YP)
Descriptors: Algorithms, Computation, Geometric Constructions, Geometry
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Burge, Cecil D. – Electronic Library, 1989
Describes the software architecture and application of SABRE (Semi-Automated Bibliographic Environment), which is one of the first products to provide a semi-automatic environment for relevancy ranking of citations obtained from searches of bibliographic databases. Features designed to meet the review, categorization, culling, and reporting needs…
Descriptors: Algorithms, Automation, Bibliographic Databases, Bibliographic Records
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