BRIAN VICKERY and ALINA VICKERY
There is a huge amount of information and data stored in publicly available online databases that consist of large text files accessed by Boolean search techniques. It is widely…
Abstract
There is a huge amount of information and data stored in publicly available online databases that consist of large text files accessed by Boolean search techniques. It is widely held that less use is made of these databases than could or should be the case, and that one reason for this is that potential users find it difficult to identify which databases to search, to use the various command languages of the hosts and to construct the Boolean search statements required. This reasoning has stimulated a considerable amount of exploration and development work on the construction of search interfaces, to aid the inexperienced user to gain effective access to these databases. The aim of our paper is to review aspects of the design of such interfaces: to indicate the requirements that must be met if maximum aid is to be offered to the inexperienced searcher; to spell out the knowledge that must be incorporated in an interface if such aid is to be given; to describe some of the solutions that have been implemented in experimental and operational interfaces; and to discuss some of the problems encountered. The paper closes with an extensive bibliography of references relevant to online search aids, going well beyond the items explicitly mentioned in the text. An index to software appears after the bibliography at the end of the paper.
N.J. BELKIN, R.N. ODDY and H.M. BROOKS
In ‘ASK for Information Retrieval: Part I’, we discussed the theory and background to a design study for an information retrieval (IR) system based on the attempt to represent the…
Abstract
In ‘ASK for Information Retrieval: Part I’, we discussed the theory and background to a design study for an information retrieval (IR) system based on the attempt to represent the anomalous states of knowledge (ASKs) underlying information needs. In Part II, we report the methods and results of the design study, and our conclusions.
N.J. BELKIN, R.N. ODDY and H.M. BROOKS
We report the results of a British Library Research and Development Department‐funded design study for an interactive information retrieval system which will determine structural…
Abstract
We report the results of a British Library Research and Development Department‐funded design study for an interactive information retrieval system which will determine structural representations of the anomalous states of knowledge (ASKs) underlying information needs, and attempt to resolve the anomalies through a variety of retrieval strategies performed on a database of documents represented in compatible structural formats. Part I discusses the background to the project and the theory underlying it, Part II (next issue) presents our methods, results and conclusions. Basic premises of the project were: that information needs are not in principle precisely specifiable; that it is possible to elicit problem statements from information system users from which representations of the ASK underlying the need can be derived; that there are classes of ASKs; and, that all elements of information retrieval systems ought to be based on the user's ASK. We have developed a relatively freeform interview technique for eliciting problem statements, and a statistical word co‐occurrence analysis for deriving network representations of the problem statements and abstracts. Structural characteristics of the representations have been used to determine classes of ASKs, and both ASK and information structures have been evaluated by, respectively, users and authors. Some results are: that interviewing appears to be a satisfactory technique for eliciting problem statements from which ASKs can be determined; that the statistical analysis produces structures which are generally appropriate both for documents and problem statements; that ASKs thus represented can be usefully classified according to their structural characteristics; and, that of thirty‐five subjects, only two had ASKs for which traditional ‘best match’ retrieval would be intuitively appropriate. The results of the design study indicate that at least some of our premises are reasonable, and that an ASK‐based information retrieval system is at least feasible.
A behavioural approach to information retrieval system design is outlined based on the derivation of a behavioural model of the information seeking patterns of academic social…
Abstract
A behavioural approach to information retrieval system design is outlined based on the derivation of a behavioural model of the information seeking patterns of academic social scientists. The information seeking patterns of a variety of academic social scientists were broken down into six characteristics: starting, chaining, browsing, differentiating, monitoring, and extracting. These characteristics constitute the principal generic features of the different individual patterns, and together provide a flexible behavioural model for information retrieval system design. The extent to which these characteristics are available on existing systems is considered, and the requirements for implementing the features on an experimental system are set out.
This paper explores the role of paradigms in information retrieval research. The nature of a paradigm is outlined and the fundamental sense of a paradigm as an exemplar is…
Abstract
This paper explores the role of paradigms in information retrieval research. The nature of a paradigm is outlined and the fundamental sense of a paradigm as an exemplar is identified. The applicability of the paradigm concept to a multi‐disciplinary field such as information science is discussed and it is concluded that paradigms can be a legitimate feature of information science though they may not be connected with the development of normal science. The features of two paradigms operating in information retrieval research, (1) the physical paradigm and (2) the cognitive paradigm are outlined, and their origins, nature and role examined. It is argued that although most work in information retrieval research takes place within the physical and cognitive paradigms, neither provides the basis for a powerful paradigm directed science. An explanation for the failure to develop a powerful body of theory articulated within a well developed paradigmatic framework is offered with reference to the inherent categorial duality of the field.
The purpose of this paper is to introduce a new method of information retrieval by man‐machine interaction. The dialogue supported has more symmetry than most interactive computer…
Abstract
The purpose of this paper is to introduce a new method of information retrieval by man‐machine interaction. The dialogue supported has more symmetry than most interactive computer systems in that the machine forms an image (rather as a man does) of the view of the human enquirer, without requiring him to ask a precise question, and responds with references according to its image. Initial tests with a prototype program indicate that a performance equal to that obtainable from a more conventional on‐line retrieval system is possible without obliging the user to formulate his query.
The need for thesauri to help users in their search for information in online information systems has been discussed for several decades. Many wide‐ranging contributions have been…
Abstract
The need for thesauri to help users in their search for information in online information systems has been discussed for several decades. Many wide‐ranging contributions have been made to solve this problem. Nevertheless, investigation is needed to design a thesaurus structure based on what is relevant for users and generators of information within a specific subject domain. This paper explores the possibility of creating a thesaurus from the cognitive viewpoint. This approach is based on a system (in this case represented by a thesaurus) that organises its representation of knowledge or its classification as closely as possible to the authors‘ and users’ images of the subject domain with the objective of increasing the interaction between users and texts, and thus the communication in a given information retrieval system. From this point of view, the thesaurus structure is considered as the essential foundation on which to base such an interactive thesaurus. Furthermore, this structure is conceived as representing the merging point for both the generators‘ and the users’ models of the subject domain and for their information needs. This paper is dedicated mainly to the generators‘ side involved in this process. It demonstrates how an author’s writings can be used to identify the generators‘ model and perception of the subject domain, and how these can later be inserted in the thesaurus structure. Discourse analysis is used as a main method to identify the categories and its relevance for building such a structure is discussed. It also outlines a general approach for the user side to set up different methods of getting the users’ information needs into the thesaurus structure.
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Design and construction of indexing languages require thorough knowledge and understanding of the information environment. This empirical study investigated a mixed set of methods…
Abstract
Design and construction of indexing languages require thorough knowledge and understanding of the information environment. This empirical study investigated a mixed set of methods (group interviews, recollection of information needs and word association tests to collect data; content analysis and discourse analysis to analyse data) to evaluate whether these methods collected the data needed for work domain oriented thesaurus design. The findings showed that the study methods together provided the domain knowledge needed to define the role of the thesaurus and design its content and structure. The study was carried out from a person‐insituation perspective. The findings reflected the information environment and made it possible to develop a thesaurus according to the characteristics of the work domain. It seemed more difficult to capture the needs of the individual user and adapt the thesaurus to individual characteristics.
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Robert N. Oddy and Brian Cheesman
Durham University Library's first automation venture arose from the decision in 1967 to establish a Short Loan Collection of books and periodicals in heavy demand. The collection…
Abstract
Durham University Library's first automation venture arose from the decision in 1967 to establish a Short Loan Collection of books and periodicals in heavy demand. The collection, divided between the Main Library and the at present separate Science Section, may eventually grow to something like 10, 000 items. While it was initially to be drawn in large part from existing stock, and administration was to be integrated with the library's other operations, the project presented an opportunity to try new methods.
This article characterises the questioning behaviour in reference interviews preceding delegated online searches of bibliographic databases and relates it to questioning behaviour…
Abstract
This article characterises the questioning behaviour in reference interviews preceding delegated online searches of bibliographic databases and relates it to questioning behaviour in other types of interviews/settings. With one exception, the unit of analysis is the question (N=610), not the interview. The author uses A.C. Graesser‘s typology of questions to analyse type of question and M.D. White’s typology of information categories to determine the question‘s content objective; this is the first application of Graesser’s typology to interview questions in any setting. Graesser‘s categories allow for a more subtle understanding of the kind of information need underlying a question. Comparisons are made between questions asked by the information specialist and those asked by the client. Findings show that the information specialist dominates the interview, about half the questions were verification questions and about 22% were judgemental questions or requests; all but four types of questions from Graesser’s categories appeared in the interviews, but no new question types were discovered. Clients often phrase questions as requests. In content, both clients and information specialists focus on the subject and service requested, but the clients ask also about search strategy and output features. Both parties ask predominantly short‐answer questions. Results are related to interface design for retrieval systems.