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ASSETS. Annual ACM Conference on Assistive Technologies最新文献

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Extended polynomial algorithms 扩展多项式算法
ASSETS. Annual ACM Conference on Assistive Technologies Pub Date : 1973-08-27 DOI: 10.1145/800192.805696
A. C. Hearn, R. Loos
{"title":"Extended polynomial algorithms","authors":"A. C. Hearn, R. Loos","doi":"10.1145/800192.805696","DOIUrl":"https://doi.org/10.1145/800192.805696","url":null,"abstract":"It is shown that standard polynomial algorithms may be applied to a much wider class of functions by making a straightforward generalization of the concept of exponent. The implementation of a computer algebra system from a standard set of polynomial programs which allows for any coefficient or exponent structure is also discussed.","PeriodicalId":72321,"journal":{"name":"ASSETS. Annual ACM Conference on Assistive Technologies","volume":"35 1","pages":"147-152"},"PeriodicalIF":0.0,"publicationDate":"1973-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84878232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Learner-controlled course on the TICCIT system 在TICCIT系统上的学习者控制课程
ASSETS. Annual ACM Conference on Assistive Technologies Pub Date : 1973-08-27 DOI: 10.1145/800192.805731
C. Bunderson
{"title":"Learner-controlled course on the TICCIT system","authors":"C. Bunderson","doi":"10.1145/800192.805731","DOIUrl":"https://doi.org/10.1145/800192.805731","url":null,"abstract":"The TICCIT project (Time-shared, Interactive, Computer-controlled Information Television) being developed jointly by the MITRE Corporation and Brigham Young University is now installed and operating at BYU with 30 terminals. The software for on-line authoring is being used to input more than six semesters of material in Mathematics and English instruction for Community Colleges. Two community colleges have been selected for a field test in 1974-75. They are Phoenix College and Northern Virginia Community College in Alexandria.\u0000 The innovative concepts of learner-controlled courseware were illustrated by means of 35 mm. slides. These concepts include the objectives and status display (MAP), the primary instruction logic of the learner-control command language, and the Advisor program.\u0000 The modularity of design for learner-controlled courseware permits differentiated staffing for the production of large volumes of quality material. The production procedures for learner-controlled courseware, involving roles of different team members, were briefly described.","PeriodicalId":72321,"journal":{"name":"ASSETS. Annual ACM Conference on Assistive Technologies","volume":"6 1","pages":"349"},"PeriodicalIF":0.0,"publicationDate":"1973-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84138454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On applications of generalized splines and generalized inverses in regularization and projection methods 广义样条和广义逆在正则化和投影方法中的应用
ASSETS. Annual ACM Conference on Assistive Technologies Pub Date : 1973-08-27 DOI: 10.1145/800192.805748
M. Nashed
{"title":"On applications of generalized splines and generalized inverses in regularization and projection methods","authors":"M. Nashed","doi":"10.1145/800192.805748","DOIUrl":"https://doi.org/10.1145/800192.805748","url":null,"abstract":"A brief exposition on generalized splines is given. Generalized splines form a spectrum of functions Sα (that depend on a parameter 0<α<@@@@) which minimize a penalty-type functional (depending on α) associated with a variety of regularization and stabilization methods. Interpolating splines and least-squares splines are obtained as limiting cases of a generalized spline (as α→0 and α&rarr@@@@ respectively). Least-squares solutions (of minimal norm) of operator equations are considered in terms of generalized inverses of linear operators. Approximate minimization (of functionals that arise in these settings) using spline functions is indicated. Projection and least-squares methods (on subspaces of splines for example) are used to approximate least-squares solutions of minimal norm of linear operator equations.","PeriodicalId":72321,"journal":{"name":"ASSETS. Annual ACM Conference on Assistive Technologies","volume":"19 1","pages":"415-418"},"PeriodicalIF":0.0,"publicationDate":"1973-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84427435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Test-site evaluation of ICU/PLANIT ICU/PLANIT试验点评价
ASSETS. Annual ACM Conference on Assistive Technologies Pub Date : 1973-08-27 DOI: 10.1145/800192.805724
T. Frederick
{"title":"Test-site evaluation of ICU/PLANIT","authors":"T. Frederick","doi":"10.1145/800192.805724","DOIUrl":"https://doi.org/10.1145/800192.805724","url":null,"abstract":"PLANIT (<underline>P</underline>rogramming <underline>LAN</underline>guage for <underline>I</underline>nteractive <underline>T</underline>eaching) is a language used by authors to generate instructional sequences which are accessed by students via a computer. The Instructor's Computer Utility or ICU/PLANIT is the complete software system which makes PLANIT operational. This system is intended to function either as the sole operating system for the target machine or in co-operation with other operating systems.\u0000 In August 1972, the National Science Foundation selected Purdue University as a test-site for an analysis and evaluation of ICU/PLANIT. Near the end of 1972, the Northwest Regional Educational Laboratory and Dr. Frye contracted with NSF for further PLANIT development and interaction between the test-site and PLANIT development was established.","PeriodicalId":72321,"journal":{"name":"ASSETS. Annual ACM Conference on Assistive Technologies","volume":"8 1","pages":"316-319"},"PeriodicalIF":0.0,"publicationDate":"1973-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84514184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Computational aspects of data fitting with a new multivariate spline 一种新的多元样条数据拟合的计算方面
ASSETS. Annual ACM Conference on Assistive Technologies Pub Date : 1973-08-27 DOI: 10.1145/800192.805747
P. B. Zwart
{"title":"Computational aspects of data fitting with a new multivariate spline","authors":"P. B. Zwart","doi":"10.1145/800192.805747","DOIUrl":"https://doi.org/10.1145/800192.805747","url":null,"abstract":"The multivariate splines considered are piecewise polynomials of total degree s, with continuous derivatives of order s-1. The piecewise domains consist of the polyhedra obtained by partitioning En with any k hyperplanes. For nondegenerate partitions, the splines have data fitting power which is greater than a single polynomial and less than the standard tensor product splines. An especially simple canonical form represents these splines. This representation, although numerically ill-conditioned, can be effectively used with standard software on problems with 1≤s≤3, 1≤n≤3, 1≤k≤8. Fixed partition problems can be solved with IBM's Scientific Subroutine Package programs for min-max or least squares fitting. Variable partitions can be handled with Marquardt's method, modified to avoid redundant placement of partitions.","PeriodicalId":72321,"journal":{"name":"ASSETS. Annual ACM Conference on Assistive Technologies","volume":"145 1","pages":"409-414"},"PeriodicalIF":0.0,"publicationDate":"1973-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89067012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A survey of compiler optimization techniques 编译器优化技术综述
ASSETS. Annual ACM Conference on Assistive Technologies Pub Date : 1973-08-27 DOI: 10.1145/800192.805690
P. Schneck
{"title":"A survey of compiler optimization techniques","authors":"P. Schneck","doi":"10.1145/800192.805690","DOIUrl":"https://doi.org/10.1145/800192.805690","url":null,"abstract":"This survey describes the major optimization techniques of compilers and groups them into three categories: machine dependent, architecture dependent, and architecture independent. Machine-dependent optimizations tend to be local and are performed upon short spans of generated code by using particular properties of an instruction set to reduce the time or space required by a program. Architecture-dependent optimizations are global and are performed while generating code. These optimizations consider the structure of a computer, but not its detailed instruction set. Architecture-independent optimizations are also global but are based on analysis of the program flow graph and the dependencies among statements of source program. The paper also presents a conceptual review of a universal optimizer that performs architecture-independent optimizations at source-code level.","PeriodicalId":72321,"journal":{"name":"ASSETS. Annual ACM Conference on Assistive Technologies","volume":"26 1","pages":"106-113"},"PeriodicalIF":0.0,"publicationDate":"1973-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79020477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 27
Computer applications in a cable television environment 有线电视环境下的计算机应用
ASSETS. Annual ACM Conference on Assistive Technologies Pub Date : 1973-08-27 DOI: 10.1145/800192.805674
H. Buckholtz, Eileen Buckholtz
{"title":"Computer applications in a cable television environment","authors":"H. Buckholtz, Eileen Buckholtz","doi":"10.1145/800192.805674","DOIUrl":"https://doi.org/10.1145/800192.805674","url":null,"abstract":"The intention of this paper is to survey the field of cable television and computer applications.","PeriodicalId":72321,"journal":{"name":"ASSETS. Annual ACM Conference on Assistive Technologies","volume":"2 1","pages":"20-26"},"PeriodicalIF":0.0,"publicationDate":"1973-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73190911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An experimental comparison of relevance-feedback techniques 相关反馈技术的实验比较
ASSETS. Annual ACM Conference on Assistive Technologies Pub Date : 1973-08-27 DOI: 10.1145/800192.805714
R. W. Elliott, Lee E. Cashman
{"title":"An experimental comparison of relevance-feedback techniques","authors":"R. W. Elliott, Lee E. Cashman","doi":"10.1145/800192.805714","DOIUrl":"https://doi.org/10.1145/800192.805714","url":null,"abstract":"This paper describes an experiment in which seven relevance feedback document retrieval techniques are compared. It is shown that for the set of parameters and indexed document collection used, two of the techniques performed worse than the initial queries and that the greatest gains in precision for the others occur at low levels of recall. At the extreme recall levels no significant differences were found among any of the techniques while over all recall levels no significant differences were found among five of the techniques.","PeriodicalId":72321,"journal":{"name":"ASSETS. Annual ACM Conference on Assistive Technologies","volume":"39 1","pages":"256-261"},"PeriodicalIF":0.0,"publicationDate":"1973-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75975467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On-line index term predictions using bigram-term associations 在线索引词预测使用双词关联
ASSETS. Annual ACM Conference on Assistive Technologies Pub Date : 1973-08-27 DOI: 10.1145/800192.805715
Jon T. Rickman, H. W. Gardner
{"title":"On-line index term predictions using bigram-term associations","authors":"Jon T. Rickman, H. W. Gardner","doi":"10.1145/800192.805715","DOIUrl":"https://doi.org/10.1145/800192.805715","url":null,"abstract":"Predicting index terms (or keywords) by examining a word's component letter strings is investigated. The weights or string-term associations for the letter strings are determined by using relative frequencies computed from a representative sample of the total abstract (or document) collection. The experimental results indicate that the terms predicted by using bigrams (letter pairs) are effectively the same as those predicted by using bigrams and longer letter strings.","PeriodicalId":72321,"journal":{"name":"ASSETS. Annual ACM Conference on Assistive Technologies","volume":"56 1","pages":"262-270"},"PeriodicalIF":0.0,"publicationDate":"1973-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76165608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A step toward quality control in computer programming: Understanding the psychology of the management of computer programmers 迈向计算机程序设计质量控制的一步:了解计算机程序员管理的心理
ASSETS. Annual ACM Conference on Assistive Technologies Pub Date : 1973-08-27 DOI: 10.1145/800192.805749
R. Littrell
{"title":"A step toward quality control in computer programming: Understanding the psychology of the management of computer programmers","authors":"R. Littrell","doi":"10.1145/800192.805749","DOIUrl":"https://doi.org/10.1145/800192.805749","url":null,"abstract":"AT THE 1972 ANNUAL MEETING OF THE AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE, SPEAKING BEFORE THE ACM-SPONSORED SESSION ON BETTER COMPUTING FOR RESEARCHERS, DR. RUTH DAVIS, DIRECTOR OF THE CENTER FOR COMPUTER SCIENCE AND TECHNOLOGY OF THE NATIONAL BUREAU OF STANDARDS, STATED THAT THERE WERE SOME 2000 TYPES' OF COMPUTER APPLICATIONS, SUCH AS PAYROLL, WRITING MUSIC, SOLVING DIFFERENTIAL EQUATIONS, ETC. OF THESE, FORTY PERCENT WERE SCIENTIFIC AND ENGINEERING APPLICATIONS (AND THIS KIND OF APPLICATION IS DECREASING RELATIVE TO THE TOTAL), BUSINESS AND MANUFACTURING ACCOUNTED FOR THIRTY PERCENT, AND HUMANITIES APPLICATIONS ALSO TOTALED THIRTY PERCENT. THE ONE COMMON THREAD IN EACH APPLICATION IS THAT MANAGERS CANNOT CONTROL THE QUALITY OF THE PROGRAMS, AND THEY CANNOT CONTROL THE KINDS OF TESTING EMPLOYED, THE PROGRAMS THAT ARE PRODUCED USUALLY HAVE NOT BEEN TESTED THROUGHOUT THE FULL RANGE OF POSSIBLE INPUTS.\u0000 THE TIME HAS COME, DUE TO THE OFTEN TREMENDOUS COSTS OF SYSTEM FAILURES, TO EMPLOY QUALITY CONTROL PROCEDURES DURING PRODUCTION OF PROGRAMS, SINCE QUALITY CONTROL PROCEDURES ARE AN INTEGRAL PART OF MOST BUSINESS AND PRODUCTION ORGANIZATIONS, ONE MIGHT WONDER WHY SIMILAR PROCEDURES HAVE NOT BEEN USED IN DATA PROCESSING SO FAR.","PeriodicalId":72321,"journal":{"name":"ASSETS. Annual ACM Conference on Assistive Technologies","volume":"56 1","pages":"419-423"},"PeriodicalIF":0.0,"publicationDate":"1973-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77491108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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