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Showing papers on "Ranking (information retrieval) published in 1983"


Journal ArticleDOI
TL;DR: A new, extended Boolean information retrieval system is introduced which is intermediate between the Boolean system of query processing and the vector processing model, and Laboratory tests indicate that the extended system produces better retrieval output than either the Boolean or thevector processing systems.
Abstract: In conventional information retrieval Boolean combinations of index terms are used to formulate the users'' information requests. While any document is in principle retrievable by a Boolean query, the amount of output obtainable by Boolean processing is difficult to control, and the retrieved items are not ranked in any presumed order of importance to the user population. In the vector processing model of retrieval, the retrieved items are easily ranked in decreasing order of the query-record similarity, but the queries themselves are unstructured and expressed as simple sets of weighted index terms. A new, extended Boolean information retrieval system is introduced which is intermediate between the Boolean system of query processing and the vector processing model. The query structure inherent in the Boolean system is preserved, while at the same time weighted terms may be incorporated into both queries and stored documents; the retrieved output can also be ranked in strict similarity order with the user queries. A conventional retrieval system can be modified to make use of the extended system. Laboratory tests indicate that the extended system produces better retrieval output than either the Boolean or the vector processing systems.

909 citations


Posted Content
TL;DR: The authors provided a ranking of journals based on their relative influences on the writings of academics, either within the economics profession or in the world at large, and the measurement used to create this ranking was the number of citations that authors make to articles appearing in various journals.
Abstract: A CADEMIC JOURNALS have played an increasingly important role in the dissemination of scientific information throughout this century, particularly during the last decade.1 This fact is no less true in economics than in other disciplines. The number of journals has also increased greatly in recent decades. For these and other reasons, several recent efforts have been made to judge the various qualities and merits of individual journals. Besides being a rather enjoyable form of naval-gazing for those within a given discipline, such activities also provide valuable information. Where articles are published can affect one's promotion, tenure, and salary at one's present job; it can also affect one's brand name and the ability to change jobs. The purpose of this study is to provide a ranking of journals based on their relative influences on the writings of academics, either within the economics profession or in the world at large.2 The measurement used to create this ranking, described in detail below, is the number of citations that authors make to articles appearing in various journals. After a brief discussion of several previous studies, we proceed to a more complete explanation of our procedures and results.

526 citations


Journal Article
TL;DR: A structured approach helps managers to make a more effective use of IS resources because it includes other elements relative to the priority-setting process, rather than just those that are purely financial.
Abstract: When it comes to deciding which project proposals should get the nod, top executives, information systems managers, and users often have conflicting views. None of these should make the choice alone, says this author. With the IS manager as coordinator, users and top executives can contribute to an eight-step process that will reconcile differing perspectives and permit an orderly ranking of projects. Such a structured approach helps managers to make a more effective use of IS resources because it includes other elements relative to the priority-setting process, rather than just those that are purely financial.

170 citations



Journal ArticleDOI
TL;DR: The generalized Boolean query model must be reconciled with the vector space approach, suggested new lattice structures for weighted retrieval, and probabilistic retrieval models, and proper retrieval evaluation mechanisms reflecting the fuzzy nature of retrieval are needed.
Abstract: Substantial work has been done on the application of fuzzy subset theory to information retrieval. Boolean query processing has been generalized to allow for weights to be attached to individual terms, in either the document indexing or the query representation, or both. Problems with the generalized Boolean lattice structure have been noted, and an alternative approach using query thresholds and appropriate document evaluation functions has been suggested. Problems remain unsolved, however. Criteria generated for the query processing mechanism are inconsistent. The exact functional form and appropriate parameters for the query processing mechanism must be specified. Moreover, the generalized Boolean query model must be reconciled with the vector space approach, suggested new lattice structures for weighted retrieval, and probabilistic retrieval models. Finally, proper retrieval evaluation mechanisms reflecting the fuzzy nature of retrieval are needed.

130 citations


Journal Article
TL;DR: In this article, the IS manager as coordinator, users and top executives can contribute to an eight-step process that will reconcile differing perspectives and permit an orderly ranking of projects, which helps managers to make a more effective use of IS resources because it includes other elements relative to the priority-setting process.
Abstract: When it comes to deciding which project proposals should get the nod, top executives, information systems managers, and users often have conflicting views. None of these should make the choice alone, says this author. With the IS manager as coordinator, users and top executives can contribute to an eight-step process that will reconcile differing perspectives and permit an orderly ranking of projects. Such a structured approach helps managers to make a more effective use of IS resources because it includes other elements relative to the priority-setting process, rather than just those that are purely financial.

120 citations


Journal ArticleDOI
TL;DR: This paper extends the theory by describing a model which includes a more general relevance scale and permits a re‐examination of the earlier theory as a special case of that developed here and leads to a more satisfying interpretation of the ranking principle of theEarlier models.
Abstract: For reasons of technical convenience, current retrieval algorithms based on probabilistic reasoning are derived from models that assume patrons evaluate documents using a two value relevance scale. This paper extends the theory by describing a model which includes a more general relevance scale. This model permits a re‐examination of the earlier theory as a special case of that developed here and leads to a more satisfying interpretation of the ranking principle of the earlier models.

58 citations


Journal ArticleDOI
TL;DR: The Ranking of Incomplete Tournaments: A Mathematician's Guide to Popular Sports as mentioned in this paper is a good starting point for a discussion of incomplete tournaments in the mathematical domain. The American Mathematical Monthly: Vol. 90, No. 4, pp. 246-266.
Abstract: (1983). The Ranking of Incomplete Tournaments: A Mathematician's Guide to Popular Sports. The American Mathematical Monthly: Vol. 90, No. 4, pp. 246-266.

54 citations


Journal ArticleDOI
TL;DR: A consensus ranking function and several heuristics to solve the consensus ranking problem and empirical testing results of the solution strategies are presented to indicate their solution efficiency.

51 citations


Proceedings ArticleDOI
12 Dec 1983
TL;DR: In this article, some common ranking and selection terminology and procedures are introduced and applications to simulation are discussed.
Abstract: In this article, we discuss the branch of statistics known as ranking and selection. We introduce some common ranking and selection terminology and procedures. Additional references for more complicated procedures are given. Applications to simulation are discussed.

42 citations



Journal ArticleDOI
TL;DR: It is shown how a search graph can be constructed to aid in the ranking and unranking of B -trees.

Journal ArticleDOI
TL;DR: An iterative method for information retrieval uses searchonyms found from the previously retrieved set of documents in query expansion to form the feedback seed, which is subsequently used in query reformulation.
Abstract: An iterative method for information retrieval is presented. It uses searchonyms found from the previously retrieved set of documents in query expansion. Only largest values of relation of resemblance between the query and the documents are used to form the feedback seed. From this top retrieved set of documents, most informative features are selected as searchonyms, which are subsequently used in query reformulation. Large operational bibliographic data bases are used to simulate the behavior of this method.

Journal ArticleDOI
TL;DR: It is found that there is a remarkable consistency in the rankings of the top five to ten schools; conversely, 40 schools (about fifty-eight per cent of all) appear on no list, 47 never appear in as high a ranking as tenth, and 41 never appear as high as fifteenth.
Abstract: The paper reviews the eight (seven published) efforts to secure a relative evaluation of the accredited North American library schools, and reproduces the rankings of each effort. The paper discusses the pros and cons of different evaluative methods, compares the results of the eight evaluations, and finds that there is a remarkable consistency in the rankings of the top five to ten schools; conversely, 40 schools (about fifty-eight per cent of all) appear on no list, 47 never appear in as high a ranking as tenth, and 41 never appear in as high a ranking as fifteenth.

Journal ArticleDOI
TL;DR: In this article, the problem of ranking vertices in the linear fractional programming problem is considered, and it is shown that a class of vertex ranking algorithms for the linear programming problem can be used with only minor modifications.
Abstract: In this paper the problem of ranking vertices in the linear fractional programming problem is considered. It is shown that a class of vertex ranking algorithms for the linear programming problem can be used with only minor modifications.


Journal ArticleDOI
01 Feb 1983
TL;DR: In this article, a method for identifying and ranking biologically important geographic areas in spill response planning is described, and the ranking criteria selected (habitat recovery, persistence of oil, cleanup damage, important species supported, and habitat rarity) are defined and their evaluation explained.
Abstract: A method for identifying and ranking biologically important geographic areas in spill response planning is described. Although this project was conducted to minimize environmental risks due to accidental spillage from the Louisiana Offshore Oil Port (LOOP), the methodology is widely applicable. The method has three important characteristics: it is driven by the existing information base and easily updated, applicable to all coastal and aquatic environments, and capable of producing a list of priorities within a specific spill response planning area. The rationale of selecting ranking units and ranking criteria is presented. Habitat was selected as the best available ranking unit for oil spill response planning. “Habitat” is defined, and the attributes of habitats that make them useful analytical units are described. The ranking criteria selected (habitat recovery, persistence of oil, cleanup damage, important species supported, and habitat rarity) are defined and their evaluation explained. An ap...


Patent
07 Jul 1983
TL;DR: In this paper, the authors proposed a rearrangeable card for the display of ranking of the sum total, and ranking of results, or the like, by classifying numerical value corresponding to recording of many kinds, into each individual in order, and making a card on which the sum sum total of recording is entered, rearrangeability.
Abstract: PURPOSE:To simplify display of ranking of the sum total, and ranking of results, or the like, by classifying numerical value corresponding to recording of many kinds, into each individual in order, and making a card on which the sum total of recording is entered, rearrangeable. CONSTITUTION:On one side of a frame body 2, a card inserting groove 4 is provided, and on the inside of the frame body, a channel-shaped groove for holding plural card bodies 1 which can be drawn out and inserted freely. On the uppermost stage of the card body 1, and item column is provided, for instance, a full name (a group name), number, each item, total of the marks obtained, a ranking column, etc. are entered from the left. Entry is executed in each column of the card of the second stage and thereafter, the ranking is entered by calculating the total of the marks obtained, said contents are rearranged from the uppermost stage in accordance with the ranking, and the card is copied as necessary. In this way, the ranking of results of the sum total is displayed distictly, and this way, the ranking of results of the sum total is displyed distinctly, and this device is conveniently utilized for the total display of each contest, the obtained marks of a test, etc.




Journal ArticleDOI
TL;DR: SORTRANK, programme BASIC versatile produisant de two types of sorties, conserve d'un programme de tri et de rangement.
Abstract: Preservation d'un programme de tri et de rangement. SORTRANK, programme BASIC versatile produisant deux types de sorties

01 Jan 1983
TL;DR: In this paper, the results of the analysis were combined with price and cost forecasts for the 1980s to obtain a realistic projection of expected exploratory success, using the same exploratory budget for all trends and rank trends based upon the probability of achieving the desired present worth return or better.
Abstract: The industry's performance was analyzed for the years 1970 through 1981. These physical results were combined with price and cost forecasts for the 1980s to obtain a realistic projection of expected exploratory success. The steps in the analysis are as follows: (1) Geological Classification-a data base was developed containing the well information on 4800 new-field and other exploratory wells drilled in south Louisiana. Each well was classified as to the objective formation and as to the producing formation(s) if successful. (2) Exploratory Drilling Data Analysis-a computer program was written to sort the well data by trend, project and exploratory success ratios for oil and gas, and prepare depth and cost analysis. (3) Reserves Added Analysis-Reserve estimates were made for 858 (557 gas, 301 oil) discoveries by projecting rate-cumulative production decline curves. Discovery sizes for the trends exhibited the expected log-normal frequency distributions. (4) Economic Projections-Using projected costs and product prices, a profile was developed for each trend of present worth profit as a function of discovery size. (5) Probabilistic Analysis-Utilizing the Monte Carlo technique, a computer program was written to realistically simulate an n-well exploration program. The result for each trend was a cumulative frequency distribution of the return permore » exploration dollar. Using the same exploratory budget for all trends allowed us to rank trends based upon the probability of achieving the desired present worth return or better. In summary, computer data banks were used, along with thorough geologic analysis and some common sense, to provide a sound basis for concentrating exploration effort on those trends where we are most likely to achieve our objective.« less



Journal ArticleDOI
TL;DR: The iterative method of document retrieval described in the paper is based on a rule similar to that used in the relevance feedback method, and the comparative evaluation of retrieved documents can be treated as determining boundaries of the area which contains descriptions of relevant documents.
Abstract: The iterative method of document retrieval described in the paper is based on a rule similar to that used in the relevance feedback method. The similarity lies in giving retrieved documents to a user for evaluation, and in utilizing information received in such a way in the next retrieval iteration. The evaluation is made by comparing the retrieved documents with each other. The comparative formulae are interpreted as algebraical inequalities that should be fulfilled by the term vectors corresponding to relevant documents. Thus the comparative evaluation of retrieved documents can be treated as determining boundaries of the area which contains descriptions of relevant documents. The case of linear boundaries of the area is discussed and some experiments are described involving the algebraical approach to the problem of determining the user's information need.

Journal ArticleDOI
TL;DR: It is demonstrated that Roskin's criticisms of the Lane et al. algorithm are based on a misinterpretation of the fundamental mathematical law cited by him, and a non sequitur reasoning, which results in a true measure of a group's ability.
Abstract: We have demonstrated that Roskin's criticisms of the Lane et al. algorithm are based on (a) a misinterpretation of the fundamental mathematical law cited by him, and (b) non sequitur reasoning. In addition, his technique for scoring ranking tasks is impractical, inaccurate, and biased. Therefore, we recommend the use of the Lane et al. algorithm, which results in a true measure of a group's ability.