Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.BERKELEY.EDU Path: utzoo!watmath!clyde!cbosgd!ucbvax!AIDS-Unix!Info-Graphics-Request From: Info-Graphics-Request@AIDS-UNIX (Info-Graphics moderator Andy Cromarty) Newsgroups: mod.graphics Subject: Info-Graphics Digest Message-ID: <8603161929.AA25897@ucbvax.berkeley.edu> Date: Sun, 16-Mar-86 06:00:32 EST Article-I.D.: ucbvax.8603161929.AA25897 Posted: Sun Mar 16 06:00:32 1986 Date-Received: Mon, 17-Mar-86 04:19:11 EST Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: Info-Graphics@AIDS-Unix Organization: The ARPA Internet Lines: 145 Approved: info-graphics@aids-unix.arpa Info-Graphics Digest Sun Mar 16 03:00:32 PST 1986 - Send submissions to Info-Graphics@AIDS-Unix - Send requests for list membership to Info-Graphics-Request@AIDS-Unix Today's Topics: Re: Info-Graphics Digest Decision Maker's Graphics SEARCHING VISUAL INFORMATION ---------------------------------------------------------------------- Date: Tue, 11 Mar 86 23:33:23 EST From: ronnie@EDDIE.MIT.EDU (Ron Schnell) Subject: Re: Info-Graphics Digest Organization: MIT, EE/CS Computer Facilities, Cambridge, MA Someone posted some fixes to the program "pcb" a while ago. Could someone point me in the direction of this? #Ron (ronnie@mit-eddie) ------------------------------ Subject: Decision Maker's Graphics Date: 10 Mar 86 19:07:01 PST (Mon) From: stever%tektronix.csnet@CSNET-RELAY.ARPA Source-Info: From (or Sender) name not authenticated. Here is something that might be of interest to this news group: ************************************************************* ENHANCED COMPUTER GRAPHICS FOR DECISION MAKERS a dissertation defense and oral examination feb 28, l986 by Floyd J. Brock Words need a context to be understood. Visual patterns also need a context to convey their meaning. When patterns represent quantities in business graphics, decision makers (DMs) depend on contrasting visual contexts to discern patterns and discover relationships. Depending on the context in which DMs see trends, differences between two trends may point to a problem, continuity, or an opportunity. Can enhancing the context in computer graphics help DMs visualize problems? To answer this research question, three experiments were done in the field on computer graphics. One hundred five DMs tried 17 different contexts for time-series trends displayed on a microcomputer monitor. The research objective was to find out whether or changing the context in graphics affected the decision efficiency (accuracy/response time) of DMs in determining relationships among trends. Essential for measuring the effect were interactive computer programs that displayed random trends in graphics of differing contexts, collected the DMs' answers to questions about the trends, and graded 1133 graphics based on the answers, response times, and trend data. The experimental results supported the hypothesis that computers can enhance the visual context surrounding time-series trends so that DMs can better visualize problems. Results were based on comparisons of DMs' decision efficienies between trial graphics with differing contextual enhancements and on answers to questions about the trial graphics. The results were tested with nonparametric statistics at the 0.05 significance level. Specific findings were: --Computer-suppolied forecasts, as an enhancement, significantly helped DMs find differences among trends. --Although not statistically significant, stratified presentation of trends and fading chartjunk tended to increase DMs' efficiencies. --Adding two colors, as an enhancement, made no difference in efficiency over black and white. --Paired trends in windows did not affect efficiency significantly. --Sequentially traced trends and composites of enhancements did not affect efficiency signifi- cantly. --DMs preferred stratified trends most and had the most confidence in graphics with fading context. They liked least and had the least confidence in black-and-white graphics. *********************************************************** Floyd Brock can be reached through the Systems Science Ph..D. Program, P.O. Box 750, Portland State University, Portland, OR., 97207. 503-229-4960. ------------------------------ Date: 12 MAR 86 17:06-EST From: ANK%CUNYVMS1.BITNET@WISCVM.WISC.EDU Subject: SEARCHING VISUAL INFORMATION I am interested to know if anyone is working on graphic representation of knowledge ? More specifically, designers (architects, artists,) and some other professions, are able to recollect and subsequently search for parts of information, that are pictorial in representation. AutoCAD has symbol libraries, and Macro's that many designers call-up frequently. But these macro's are essentially linquistically addressed. If one were to say draw a "table", how would one design the recoginition procedure that would retrieve five or ten types of tables, and display it ? I am about to begin addressing some f these pictorial-verbal label issues in my research, and need some input from individuals who are aware or ideas and strategies. Please send suggestions to ank%cunyvms1.BITNET@wiscvm.edu I promise to mail all the suggestions to other people, and may put it in the network if so desired. Thanks Anil Khullar (ank%cunyvms1.BITNET@wiscvm.edu) Ph.D. program in Psychology, Box 295, C.U.N.Y. Graduate Center, 33 W 42 St. NewYork NY 10036 ------------------------------ End of INFO-GRAPHICS ********************