IRLIST Digest April 3, 1990 Volume VII Number 10 Issue 16 ********************************************************** This issue and future issues of IRLIST Digest will be much shorter than the issues in 1989 and early 1990. The basic outline, or table of contents, will be included in every issue, although we may not have received submissions for each topic. Issues will be compiled and produced as material is received. I. NOTICES: A. Meetings announcements/Calls for papers 1. Turing 1990 - Final Reminder B. Publications announcements C. Miscellaneous 1. Boston events during COIS II. QUERIES: A. Questions and answers B. Requests for information III. JOB ANNOUNCEMENTS: IV. PROJECTS: A. Initiatives and proposals B. Bibliographies 1. Selected IR-related dissertation abstracts (This will be an ongoing submission as there are hundreds of abstracts.) C. Abstracts D. Miscellaneous ********************************************************** I. NOTICES I.A.1. Fr: Turing Conference Re: Turing 1990 - Final Reminder Computer Studies and Philosophy University of Leeds LEEDS, LS2 9JT Friday, 23rd March 1990 TURING 1990 - FINAL REMINDER I would be very grateful if you could bring this notice to the attention of the relevant academic staff and postgraduates in your department, as soon as possible. It concerns a major conference which is taking place in Sussex University the week after next (starting on Tuesday 3rd April), and for which a limited number of places are still available. Because of the uniqueness of the Conference, and its magnificent range of speakers, we are taking the unusual step of providing a last-minute "reminder" for anyone who may have either failed to see our previous notices, or forgotten to register in time. We are keen to provide a final opportunity for British academics and postgraduates who are interested in computers and their philosophical significance, since it is very unlikely that such an impressive list of speakers in this subject area will be assembled on this side of the Atlantic for a long time to come (see below). Yours sincerely, and with many thanks, Peter Millican ___________________________________________________________________________ INVITED GUEST SPEAKERS ANDREW HODGES, author of the much-acclaimed biography Alan Turing: the Enigma of Intelligence, will give the opening address at the Conference. DONALD MICHIE and ROBIN GANDY, both of whom knew Turing personally, will present the first and last major papers. Gandy is a prominent mathematical logician, while Michie is very well known in artificial intelligence circles, as well as being chief scientist at Glasgow's Turing Institute. The two other invited British speakers are CHRISTOPHER PEACOCKE, Waynflete Professor of Philosophy at Oxford, and J.R. LUCAS, who will be speaking on the topic of his famous and controversial paper "Minds, Machines and Godel" in front of an audience which will include some of his fiercest critics! One of these, DOUGLAS HOFSTADTER (Indiana), achieved fame with his Pulitzer Prize winning book Godel, Escher, Bach, which did much to provoke general interest in artificial intelligence. Other major American visitors include PAUL CHURCHLAND (California), perhaps the best known connectionist opponent of folk-psychology; JOSEPH FORD (Georgia), a prominent advocate of the new and exciting theory of chaos; CLARK GLYMOUR (Carnegie-Mellon), a notable philosopher of science, and last, but certainly not least, HERBERT SIMON (Carnegie-Mellon), one of the founding fathers of the science of artificial intelligence, and a Nobel laureate in 1978. OTHER CONTRIBUTORS Authors of the other 18 contributions include many well-known computer scientists, artificial intelligence researchers, and philosophers from America, Australia and Europe as well as from Britain. Their names, and the titles of their papers, are listed in the programme which follows. ___________________________________________________________________________ TURING 1990 - LATE REGISTRATION INFORMATION VENUE The Conference takes place at the University of Sussex, Falmer, which is about 4 miles from Brighton (the frequent trains take about 8 minutes, and the campus is barely 100 yards from Falmer station). Registration is from 11 a.m. until 2 p.m. on Tuesday 3rd April at NORWICH HOUSE, which is where most delegates will be accommodated. Those arriving late should ask the porter at Norwich House for registration materials unless they arrive after he has gone off duty, in which case registration materials, keys etc. can be collected from the permanent duty porter at the adjacent YORK HOUSE. FIRST AND LAST AFTERNOONS The Conference opens at 2 p.m. on Tuesday, with a lecture by Andrew Hodges in ARTS A2. This will be followed by coffee at 3.00, and a paper by Donald Michie (also in Arts A2) at 3.30. Dinner is from 5.00 until 6.30 in the Refectory, Level 2, with a wine reception in the Grapevine Bar (Refectory building) from 6.00 until 8.00, when Clark Glymour will speak in Arts A2. On Friday 6th April, Lunch is from 12.00 p.m. until 2.00, when Robin Gandy will give the closing speech. Coffee at 3.30 marks the official end of the Conference, although at 4.00 Douglas Hofstadter will give an additional open lecture entitled "Hiroshima Ma Mignonne". Dinner on Friday evening is available for those who require it (at a cost of #6.00). REGISTRATION AND ACCOMMODATION COSTS For members of the Mind Association or the Aristotelian Society, and also subscribers to Analysis or Philosophical Quarterly, the registration fee is only #30, thanks to the generous support which we are receiving from these bodies. The registration fee for students is likewise #30. For other academics the fee is #50, while for non-academics the fee is #80. Full board including bed, breakfast and all meals (with the exception of Thursday evening) from Dinner on Tuesday to Lunch on Friday, costs #84. For those wanting these meals alone (and not bed and breakfast), the cost is #33. On Thursday evening the Conference Banquet takes place at the Royal Pavilion in Brighton (for which we charge only the marginal cost of #25), but for those not attending the Banquet, dinner is available in the University at a cost of #6. Please note that places at the Banquet are strictly limited, and will be filled on a first come-first served basis. HOW TO REGISTER LATE Those who wish to book accommodation for the Conference should ring Judith Dennison at Sussex University (0273-678379) immediately, and if she is not available, should leave on her answerphone full details of their meal and accommodation requirements, together with A TELEPHONE NUMBER AT WHICH THEY CAN BE CONTACTED. Those who telephone by 2.00 p.m. ON FRIDAY 30th MARCH can probably be guaranteed accommodation within the University (though not necessarily in Norwich House), and you are asked to meet this deadline if at all possible (assuming that you are able to catch the Friday postal collection, please also send your cheque and written requirements, by first class mail, to the address below). During the following weekend Andy Clark (0273-722942) will be able to provide some information on the number of places remaining, and on Monday Judith Dennison will do her best to fit in those who have left their name in the meantime. Those who arrive on Tuesday without having booked do so, of course, at their own risk! CHEQUES AND WRITTEN REQUIREMENTS TO: Judith Dennison, School of Cognitive and Computing Sciences, University of Sussex, Brighton, BN1 9QN (please use first class post, and do not include cheques if posted after 30th March). PJRM/23rd March 1990 ____________________________________________________________________________ TURING 1990 COLLOQUIUM At the University of Sussex, Brighton, England 3rd - 6th April 1990 PROGRAMME OF SPEAKERS AND GENERAL INFORMATION ____________________________________________________________________________ INVITED SPEAKERS Paul CHURCHLAND (Philosophy, University of California at San Diego) FURTHER THOUGHTS ON LEARNING AND CONCEPTUAL CHANGE Joseph FORD (Physics, Georgia Institute of Technology) CHAOS : ITS PAST, ITS PRESENT, BUT MOSTLY ITS FUTURE Robin GANDY (Mathematical Institute, Oxford) HUMAN VERSUS MECHANICAL INTELLIGENCE Clark GLYMOUR (Philosophy, Carnegie-Mellon) COMPUTABILITY, CONCEPTUAL REVOLUTIONS AND THE LOGIC OF DISCOVERY Andrew HODGES (Oxford, author of "Alan Turing: the enigma of intelligence") BACK TO THE FUTURE : ALAN TURING IN 1950 Douglas HOFSTADTER (Computer Science, Indiana) MENTAL FLUIDITY AND CREATIVITY J.R. LUCAS (Merton College, Oxford) MINDS, MACHINES AND GODEL : A RETROSPECT Donald MICHIE (Turing Institute, Glasgow) MACHINE INTELLIGENCE - TURING AND AFTER Christopher PEACOCKE (Magdalen College, Oxford) PHILOSOPHICAL AND PSYCHOLOGICAL THEORIES OF CONCEPTS Herbert SIMON (Computer Science and Psychology, Carnegie-Mellon) MACHINE AS MIND ____________________________________________________________________________ OTHER SPEAKERS Most of the papers to be given at the Colloquium are interdisciplinary, and should hold considerable interest for those working in any area of Cognitive Science or related disciplines. However the papers below will be presented in paired parallel sessions, which have been arranged as far as possible to minimise clashes of subject area, so that those who have predominantly formal interests, for example, will be able to attend all of the papers which are most relevant to their work, and a similar point applies for those with mainly philosophical, psychological, or purely computational interests. Jonathan Cohen (The Queen's College, Oxford) "Does Belief Exist?" Mario Compiani (ENIDATA, Bologna, Italy) "Remarks on the Paradigms of Connectionism" Martin Davies (Philosophy, Birkbeck College, London) "Facing up to Eliminativism" Chris Fields (Computing Research Laboratory, New Mexico) "Measurement and Computational Description" Robert French (Center for Research on Concepts and Cognition, Indiana) "Subcognition and the Limits of the Turing Test" Beatrice de Gelder (Psychology and Philosophy, Tilburg, Netherlands) "Cognitive Science is Philosophy of Science Writ Small" Peter Mott (Computer Studies and Philosophy, Leeds) "A Grammar Based Approach to Commonsense Reasoning" Aaron Sloman (Cognitive and Computing Sciences, Sussex) "Beyond Turing Equivalence" Antony Galton (Computer Science, Exeter) "The Church-Turing Thesis: its Nature and Status" Ajit Narayanan (Computer Science, Exeter) "The Intentional Stance and the Imitation Game" Jon Oberlander and Peter Dayan (Centre for Cognitive Science, Edinburgh) "Altered States and Virtual Beliefs" Philip Pettit and Frank Jackson (Social Sciences Research, ANU, Canberra) "Causation in the Philosophy of Mind" Ian Pratt (Computer Science, Manchester) "Encoding Psychological Knowledge" Joop Schopman and Aziz Shawky (Philosophy, Utrecht, Netherlands) "Remarks on the Impact of Connectionism on our Thinking about Concepts" Murray Shanahan (Computing, Imperial College London) "Folk Psychology and Naive Physics" Iain Stewart (Computing Laboratory, Newcastle) "The Demise of the Turing Machine in Complexity Theory" Chris Thornton (Artificial Intelligence, Edinburgh) "Why Concept Learning is a Good Idea" Blay Whitby (Cognitive and Computing Sciences, Sussex) "The Turing Test: AI's Biggest Blind Alley?" ____________________________________________________________________________ TURING 1990 COLLOQUIUM At the University of Sussex, Brighton, England 3rd - 6th April 1990 This Conference commemorates the 40th anniversary of the publication in Mind of Alan Turing's influential paper "Computing Machinery and Intelligence". It is hosted by the School of Cognitive and Computing Sciences at the University of Sussex and held under the auspices of the Mind Association. Additional support has been received from the Analysis Committee, the Aristotelian Society, The British Logic Colloquium, The International Union of History and Philosophy of Science, POPLOG, Philosophical Quarterly, and the SERC Logic for IT Initiative. The aim of the Conference is to draw together people working in Philosophy, Logic, Computer Science, Artificial Intelligence, Cognitive Science and related fields, in order to celebrate the intellectual and technological developments which owe so much to Turing's seminal thought. Papers will be presented on the following themes: Alan Turing and the emergence of Artificial Intelligence, Logic and the Theory of Computation, The Church- Turing Thesis, The Turing Test, Connectionism, Mind and Content, Philosophy and Methodology of Artificial Intelligence and Cognitive Science. Invited talks will be given by Paul Churchland, Joseph Ford, Robin Gandy, Clark Glymour, Andrew Hodges, Douglas Hofstadter, J.R. Lucas, Donald Michie, Christopher Peacocke and Herbert Simon, and there are many other prominent contributors, whose names and papers are listed above. The conference will start after lunch on Tuesday 3rd April 1990, and it will end on Friday 6th April after tea. ANYONE WISHING TO REGISTER FOR THIS CONFERENCE SHOULD SEE THE LATE REGISTRATION INFORMATION ABOVE. Conference Organizing Committee Andy Clark (Cognitive and Computing Sciences, Sussex University) David Holdcroft (Philosophy, Leeds University) Peter Millican (Computer Studies and Philosophy, Leeds University) Steve Torrance (Information Systems, Middlesex Polytechnic) ___________________________________________________________________________ PLEASE SEND ON THIS NOTICE to any researchers, lecturers or students in the fields of Artificial Intelligence, Cognitive Science, Computer Science, Logic, Mathematics, Philosophy or Psychology, in Britain or abroad, and to ANY APPROPRIATE BULLETIN BOARDS which have not previously displayed it. ********************************************************** I.C.1. Fr: Robert B. Allen Re: Boston events during COIS Two events of special interest coincide with COIS. One Friday evening Arpil 27 the Computer Museum will be holding the Computer Trivia Bowl. This is a fundraiser for the Museum and has exensive support from ACM. Tickets are $50 (20% off for ACM members) which includes a 'Pre-gala Tailegate Party' and acces to the Bowl (or satellite room). Tickets may be ordered from Kate Jose at the Museum 617-426-2800 x346. The Boston Museum of Fine Arts is showing a Monet exhibit continuing through the dates of COIS. Tickets to the exhibit can be ordered from the Boston TicketMaster office 617-720-3434 at $9 each. The weekends are booked; however, most weekday times are open at present. ********************************************************** IV. PROJECTS IV.B.1. Fr: Susanne Humphrey Re: Selected IR-Related Dissertation Abstracts Compiled by: Susanne M. Humphrey National Library of Medicine Bethesda, MD 20894 The following are citations selected by title and abstract as being related to Information Retrieval (IR), resulting from a computer search, using the BRS Information Technologies retrieval service, of the Dissertation Abstracts International (DAI) database produced by University Microfilms International. Included are the UMI order number; author; university, degree, and, if available, number of pages; title; DAI subject category chosen by the author of the dissertation; and abstract. Unless otherwise specified, paper or microform copies of dissertations may be ordered from University Microfilms International, Dissertation Copies, Post Office Box 1764, Ann Arbor, MI 48106; telephone for U.S. (except Michigan, Hawaii, Alaska): 1-800-521-3042, for Canada: 1-800-268-6090. Price lists and other ordering and shipping information are in the introduction to the published DAI. An alternate source for copies is sometimes provided at the end of the abstract. The dissertation titles and abstracts contained here are published with permission of University Microfilms International, publishers of Dissertation Abstracts International (copyright by University Microfilms International), and may not be reproduced without their prior permission. AN University Microfilms Order Number ADG88-09947. AU SMITH, TIMOTHY WILLIAM. IN The University of Arizona PH. 1988, 378 pages. TI ASSESSING THE USABILITY OF USER INTERFACES: GUIDANCE AND ONLINE HELP FEATURES. DE Information Science. Business Administration, General. Computer Science. AB The purpose of this research was to provide evidence to support specific features of a software user interface implementation. A 3 x 2 x 2 full factorial, between subjects design was employed, in a laboratory experiment systematically varying existence or non-existence of a user interface and media of help documentation (either online or written), while blocking for varying levels of user experience. Subjects completed a set of tasks using a computer, so the experimenters could collect and evaluate various performance and attitudinal measures. Several attitudinal measures were developed and validated as part of this research. Consistent with previous findings, this research found that a user's previous level of experience in using a computer had a significant impact on their performance measures. Specifically, increased levels of user experience were associated with reduced time to complete the tasks, fewer number of characters typed, fewer references to help documentation, and fewer requests for human assistance. In addition, increased levels of user experience were generally associated with higher levels of attitudinal measures (general attitude toward computers and satisfaction with their experiment performance). The existence of a user interface had a positive impact on task performance across all levels of user experience. Although experienced users were not more satisfied with the user interface than without it, their performance was better. This contrasts with at least some previous findings that suggest experienced users are more efficient without a menu-driven user interface. The use of online documentation, as opposed to written, had a significant negative impact on task performance. Specifically, users required more time, made more references to the help documentation, and required more human assistance. However, these users generally indicated attitudinal measures (satisfied) that were as high with online as written documentation. There was a strong interaction between the user interface and online documentation for the task performance measures. This research concludes that a set of tasks can be performed in significantly less time when online documentation is facilitated by the presence of a user interface. Written documentation users seemed to perform equivalently with or without the user interface. With online documentation the user interface became crucial to task performance. Research implications are presented for practitioners, designers and researchers. AN University Microfilms Order Number ADG88-20760. AU SWARTZMEYER, ELMER GORDON. IN Georgia State University - College of Business Administration PH.D. 1987, 330 pages. TI AN EMPIRICAL INVESTIGATION OF INFORMATION VALUE: A UTILITY APPROACH TO BENEFIT ASSESSMENT. DE Information Science. Business Administration, Management. Economics, Commerce, Business. AB The advent of database management systems (DBMS) has had a major impact on the organizational use of computer information systems. The use of DBMS has provided system users with the flexibility to query a data base and extract information necessary to deal with a particular situation. This flexibility implies that the value of information extracted by one query may differ from that of another. This research applies a utility valuation methodology to data resident in an organization's data base so that the expected value of the information produced by a query may be calculated. The value of information will vary with the user's perception of the information worth. The statistical technique of conjoint measurement is used in this research to provide a way of quantifying perceptual value. Subjects are asked to rank hypothetical descriptions as to their belief that these descriptions describe a data element within the context of typical business scenarios. Profiles are derived by varying levels of experimentally determined characteristics of information. Characteristics used are relevancy, accuracy, timeliness, content, and reliability. A composite utility function is then developed from this ranking and applied to a set of reports composed of randomly derived combinations of data elements. The predicted ranking of these reports is compared with subject ranking of the same reports. Results of this research indicate that the data element can be used as the object of a utility assessment. The "value" of each data element was calculated using MONANOVA. This program also provides quantitative measures of each attribute used in the utility assessment. These measures permit the comparison of one data element's "value" to another and also the determination, in terms of attribute level, of why one data element is valued differently from another. The Kendall's Tau algorithm is used to compare the predicted versus actual report ranking. Research results indicate that the "value" of output information can be predicted in advance of its use based on the "value" assigned to data elements from which the information is composed. AN University Microfilms Order Number ADG88-15698. AU SHERBY, LOUISE SHARON. IN Columbia University D.L.S. 1988, 371 pages. TI THE DESIGN AND IMPLEMENTATION OF AN ONLINE PUBLIC ACCESS CATALOG IN A LARGE, MULTI-UNIT LIBRARY; A CASE STUDY. DE Library Science. AB This study is a management case study of the design and implementation of the online public access catalog (OPAC) at the Columbia University Libraries. The Libraries, using the structure of a Decision Team, selected the Biblio-Techniques Library & Information System (BLIS) as their online catalog in January 1983. Once the decision to go ahead had been made, the implementation process was under the aegis of the BLIS (later CLIO) Steering Committee. The Columbia University Libraries relied on a committee structure comprised primarily by staff from the Libraries and the Columbia University Center for Computing Activities (CUCCA) to implement the online catalog. This committee structure proved to be an effective way to implement such a system, although a costly one in terms of staff effort. A technological model designed by John Corbin in Managing the Library Automation Project was used to structure the data for the study in terms of the nine phases he describes. The study follows the design and implementation process from the work of the Decision Team in selecting the system to the Fall of 1987 when an evaluation review of the BLIS system was conducted. The study looks at the process from the point of view of the Libraries' management structure. Due to unique factors that affected the Columbia University Libraries, additional variables were identified beyond those considered in the Corbin model. These variables are discussed at length and provide additional areas for further research. AN University Microfilms Order Number ADG88-18869. AU WASHINGTON, MARYANN SHOWERS. IN Temple University Ed.D. 1988, 134 pages. TI INFORMATION RETRIEVAL FROM ONLINE DATABASES BY STUDENTS IN SECONDARY SCHOOL LIBRARY MEDIA CENTERS. DE Library Science. Information Science. Education, Technology. AB Eighty-five secondary school library media specialists in Pennsylvania were surveyed about information retrieval from online databases by students in secondary school library media centers. The library media specialists surveyed managed sites funded for student searching of online databases by the state under the LIN-TEL (Linking Information Needs-Technology, Education, Libraries) project. The study included search activities for 1985-1986 and investigated what databases were used, how the databases were utilized in curriculum areas, what training programs were in place, and the problems and potential library media specialists attached to online database searching by students. A profile of search sites collected data about staff, equipment, searching, and LIN-TEL membership. The LIN-TEL project was devised to train library media specialists about online searching and provide limited funding for searching by students. The issues of database selection, retrievability of documents, and demands on staff time were identified by respondents as interrelated issues impacting on student searching. Library media specialists reported the major hindrance to online database searching at their sites was lack of staff time. When the financial support of the LIN-TEL project is withdrawn, respondents anticipated the major hindrance to searching would become funding. Acknowledged in the study is the impact of the introduction of CD-ROM format databases on information retrieval in the school library media center. AN University Microfilms Order Number ADG88-13022. AU WHITNEY, GRETCHEN. IN The University of Michigan Ph.D. 1988, 376 pages. TI THE LANGUAGE DISTRIBUTION OF BIBLIOGRAPHIC RECORDS IN SELECTED ONLINE DATABASES. DE Library Science. Information Science. AB This study explores the language distribution of materials included in on-line bibliographic databases between 1970-84. Eight databases (BIOSIS, Chemical Abstracts, GeoRef, MEDLINE, Criminal Justice, Oceanic Abstracts, PAIS, PsycInfo) on DIALOG were chosen for their world-wide coverage of literature in their respective fields. Trends are accounted for by examining database provider policies and practices. The data are compared with book and serial production statistics, to begin to assess the possible relationship between the databases and the actual availability of literature. The results describe the degree to which English has increased, decreased, or remained stable in relation to other languages, as reflected in the availability of bibliographic records in these databases. EOB AN University Microfilms Order Number ADGD--83282. AU PULLINGER, D. J. IN Loughborough University of Technology (United Kingdom) Ph.D. 1987, 461 pages. TI THE FEASIBILITY OF ELECTRONIC JOURNALS: SOME STUDIES IN HUMAN COMPUTER INTERACTION. DE Computer Science. Mass Communications. AB Available from UMI in association with The British Library. Requires signed TDF. Computer-based tools for communication are a recent technological development. They promise to provide new routes by which to communicate with others and to transform some communications that have hitherto been dependent on media such as paper. One example is the possibility of supporting scholarly communication by the use of electronic systems, which also promises a method by which the information explosion might be handled. The research is an examination of whether or not the support of scholarly communication in this way is feasible. To investigate communication systems requires a large scale study over a long period. Accordingly the research rests on a study programme on 'electronic journals', BLEND, which ran from 1980 to 1984, funded by the British Library Research and Development Department. The feasibility of electronic journals is investigated by exploring the usability, utility, likeability and cost-effectiveness of the communications system. An analysis of the frequency and distribution of the use of the computer-based communications system showed that many things seemed to get in the way of accessing it. Several techniques were used to examine this: transaction recording, interviews, telephone surveys, questionnaires and analysis of requests for help. Once the system was accessed, a comparison of users' aims with actual use shows that different forms of the journal should be explored in the future. Two reasons for the access rate and type of use made of the system was the degree to which researchers were able to accommodate the use of a new communications system into existing patterns of work and the level of usability of the system. One area of usability that is explored in detail is the way that text can be read easily on a screen. The cost-effectiveness of the system is examined by projecting from actual costs and patterns of use. The final chapters bring together the studies in a 'Barrier' framework for understanding the use of a communications system and look forward to the future of electronic journals. AN University Microfilms Order Number ADG88-25793. AU KAWANO, TAKUJI. IN The University of Utah Ph.D. 1988, 85 pages. TI JOURNALS IN SCHOOL PSYCHOLOGY: RELATIONSHIP WITH RELATED JOURNALS AND EXTERNAL AND INTERNAL QUALITY INDICES. DE Education, Psychology. Information Science. AB This study explored journal publications (Journal of School Psychology, Psychology In the Schools, and School Psychology Review) in school psychology and used the data for analyses during the 1981-1985 period to determine characteristics of journals and editorial board influence on publications. Citations among journals were used to identify the journal network of school psychology. The underlying dimensions of network citations were identified by multidimensional scaling procedures. Statistical analyses employed in these journals were coded, and the power analyses for t, r, X$\sp2$ and F tests were conducted in order to quantify an internal index of quality measures of study--statistical conclusion validity. In reference to the journals included for this study, the following conclusions appear justified: (a) The traditional psychometric role of school psychologists is still the primary area of publication in school psychology journals; however, the order of emphasis in the published articles is changing. (b) The editorial board members, though few compared with the total number of contributors, have a greater influence on the publication of articles that they authored or coauthored. (c) Being an editorial board member of a school psychology journal has a direct effect on the later publication of his or her articles in the same journal of which they are editorial members. Publishing articles in the school psychology journals has effects on the later editorial board appointment to the same journal. (d) Twenty-three journals were included in the school psychology network. (e) The underlying dimensions of citation frequencies in the school psychology journal network are "educational versus noneducational services" and "direct versus indirect impacts to the client." The citation relationship in the school psychology journal network changed during 1978-1985. (f) Average statistical power of analyses used in the school psychology journal was low when researchers were interested in finding small amd medium effects (.21 and.62, respectively). Most researchers who used analyses with a low statistical power, however, neglected to warn readers when they failed to reject the null hypothesis. AN University Microfilms Order Number ADG88-25394. AU GAITONDE, SUNIL SHARADCHANDRA. IN Iowa State University Ph.D. 1988, 125 pages. TI PERFORMANCE INVESTIGATION OF A DOCUMENT RETRIEVAL SYSTEM ON A VOICE-DATA INTEGRATED TOKEN RING LOCAL AREA NETWORK. DE Engineering, Electronics and Electrical. AB Lately, the interest in integration of voice and data on local computer networks has been on the rise. Subsequently, much research has been devoted to exploring various techniques that are implementable using the existing standards. This research has focused on the design issues in implementing a document retrieval system on a token ring network. The presence of voice and data traffic on the network complicates the protocol design further. The performance requirements of these traffic types are different. Voice creates stream traffic on a network, where as data traffic is bursty. Voice packets need to be delivered within a limited time interval, whereas the data emphasizes on error-free delivery. The necessity and the technological feasibility with off-the-shelf components has prompted this study. A possible solution is discussed in this dissertation. During the course of this research, due to the time consuming nature of simulation experiments, a need for efficient simulation techniques was felt. Thus, as a byproduct of the initial goal of protocol design, an approximate version of the regenerative simulation was developed and is discussed here in detail. Lastly, modeling difficulties encountered in forming an analytical model are listed and a performance analysis of the subsystems of interest is given. ********************************************************** IRLIST Digest is distributed from the University of California, Division of Library Automation, 300 Lakeside Drive, Oakland, CA. 94612-3550. Send subscription requests to: LISTSERV@UCCVMA.BITNET Send submissions to IRLIST to: IR-L@UCCVMA.BITNET Editorial Staff: Clifford Lynch lynch@postgres.berkeley.edu calur@uccmvsa.bitnet Mary Engle engle@cmsa.berkeley.edu meeur@uccmvsa.bitnet Nancy Gusack ncgur@uccmvsa.bitnet The IRLIST Archives will be set up for anonymous FTP, and the address will be announced in future issues. These files are not to be sold or used for commercial purposes. Contact Mary Engle or Nancy Gusack for more information on IRLIST. The opinions expressed in IRLIST do not represent those of the editors or the University of California. Authors assume full responsibility for the contents of their submissions to IRLIST.