Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)最新文献

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Parameter passing for the Java virtual machine 为Java虚拟机传递的参数
John Gough
{"title":"Parameter passing for the Java virtual machine","authors":"John Gough","doi":"10.1109/ACSC.2000.824384","DOIUrl":"https://doi.org/10.1109/ACSC.2000.824384","url":null,"abstract":"The portability and runtime safety of programs which are executed on the Java Virtual Machine (JVM) makes the JVM an attractive target for compilers of languages other than Java. Unfortunately, the JVM was designed with language Java in mind, and lacks many of the primitives required for a straightforward implementation of other languages. Most fundamental of these obstacles is the limited range of parameter passing modes offered by the JVM. We discuss possible ways of using the JVM to provide parameter passing modes with alternative semantics, and explore one particular architecture in practice. The interaction between these mechanisms and the Java \"byte code verifier\" is also considered. The open source Gardens Point Component Pascal compiler compiles the entire Component Pascal language, a dialect of Oberon-2, to JVM bytecodes. This compiler achieves runtime efficiencies which are comparable to native-code implementations of procedural languages.","PeriodicalId":304540,"journal":{"name":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114946745","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: 10
Refining edge detection within spiral architecture 改进螺旋结构内的边缘检测
Xiangjian He, T. Hintz
{"title":"Refining edge detection within spiral architecture","authors":"Xiangjian He, T. Hintz","doi":"10.1109/ACSC.2000.824389","DOIUrl":"https://doi.org/10.1109/ACSC.2000.824389","url":null,"abstract":"Detection of edge points of 3-dimensional physical object in a 2-dimensional image is one of the main research areas of computer vision. Object contour detection and object recognition rely heavily on edge detection. The Spiral Architecture, a relatively new image structure, possesses powerful computational features that are pertinent to the vision process. In this paper, we present an edge detection scheme using Gaussian Multi-resolution Theory. The detection algorithm reduces noise and unnecessary details of the image. This algorithm is applied to obtain the edge maps of some well-known images for image processing.","PeriodicalId":304540,"journal":{"name":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115839811","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: 12
Transforming communication skills instruction: the conference approach 转变沟通技巧教学:会议方法
Paul Gruba, H. Søndergaard
{"title":"Transforming communication skills instruction: the conference approach","authors":"Paul Gruba, H. Søndergaard","doi":"10.1109/ACSC.2000.824385","DOIUrl":"https://doi.org/10.1109/ACSC.2000.824385","url":null,"abstract":"From the social constructivist perspective of education, learning is best achieved when students face complex, real world problems in which there are no clear answers. Faced with a sizeable common goal, students work collaboratively towards outcomes and maintain ownership over key decisions. The role of staff is that of facilitators whose role is to challenge learners to explore multiple aspects of the problem as they go about reaching viable solutions. Such a role contrasts, for example, to an approach which sets out to lead students to a presumed correct solution that is already possessed by the instructor. Based on these principles we designed and implemented a course on communication skills in Computer Science. Here, we describe our experiences using a student-run conference as a means to teach communication skills. In this approach, students were charged with the task of planning and organising a conference, including peer review, publicity, budget, sponsorship, web design, conference program, presentation schedule, speaker support, and catering. We describe the principles and their implementation and reflect on the outcome.","PeriodicalId":304540,"journal":{"name":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115936236","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: 7
Investigating the application of virtual environment technology for use in the petroleum exploration industry 研究虚拟环境技术在石油勘探工业中的应用
K. Nesbitt, R. J. Gallimore, B. J. Orenstein
{"title":"Investigating the application of virtual environment technology for use in the petroleum exploration industry","authors":"K. Nesbitt, R. J. Gallimore, B. J. Orenstein","doi":"10.1109/ACSC.2000.824400","DOIUrl":"https://doi.org/10.1109/ACSC.2000.824400","url":null,"abstract":"Although the concepts of virtual environments or virtual reality have been researched for many years, the industrial application of these concepts is a relatively recent event in the evolution of the human-computer interface. This paper outlines an investigation by a commercial research organization (BHP Research) into the applications of this technology. The major domain under investigation was that of petroleum exploration. The focus of the research was two-fold, namely, the use of virtual environments to enable multi-sensory interpretation of data and the ability of virtual environments to enhance collaboration amongst work teams. Appraisal was conducted by trialing the applications amongst a wide user base. While it is not possible to divulge in full the recommendations that resulted from this work, a number of observations are made about the use of this technology for petroleum exploration. Furthermore, various general implications for the use of this technology are discussed.","PeriodicalId":304540,"journal":{"name":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123395763","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: 4
Needles and Haystacks: a search engine for personal information collections 针和干草堆:一个收集个人信息的搜索引擎
Owen de Kretser, Alistair Moffat
{"title":"Needles and Haystacks: a search engine for personal information collections","authors":"Owen de Kretser, Alistair Moffat","doi":"10.1109/ACSC.2000.824381","DOIUrl":"https://doi.org/10.1109/ACSC.2000.824381","url":null,"abstract":"Information retrieval systems can be partitioned into two main classes: large-scale systems that make use of an inverted index or some other auxiliary data structure, intended for massive volumes of data; and the small-scale systems based upon sequential pattern matching that most computer users employ when hunting for missing email and news items. In this paper we describe a hybrid approach that offers the ranked queries and similarity matching of a genuine information retrieval system, but does so without any need for an index to be precomputed. This software tool, which we call seft, offers performance that in a retrieval effectiveness sense matches conventional information retrieval systems, and in a resource efficiency sense, while considerably slower than grep-like tools, is fast enough to be useful on hundreds of megabytes of text.","PeriodicalId":304540,"journal":{"name":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125105729","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
Semantic modeling for video content-based retrieval systems 基于视频内容检索系统的语义建模
L. Al-Safadi, J. Getta
{"title":"Semantic modeling for video content-based retrieval systems","authors":"L. Al-Safadi, J. Getta","doi":"10.1109/ACSC.2000.824373","DOIUrl":"https://doi.org/10.1109/ACSC.2000.824373","url":null,"abstract":"This work proposes a semantic data model for video documents based on the story-line structure powerful enough to express various human interpretations of video documents, and introduces a formal query language for video retrieval that facilitates retrieval of users' heterogeneous queries based on the proposed model. The paper identifies the elementary semantic units, composite semantic units, associations and abstraction mechanisms necessary for symbolic modeling of semantic video contents. The method is independent of presentation media and it has its origins in symbolic modeling systems developed for database and complex software systems design.","PeriodicalId":304540,"journal":{"name":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122956192","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: 9
Facilitating learning in advanced computer architecture through appropriate simulation 通过适当的模拟促进对高级计算机体系结构的学习
B. Gunther
{"title":"Facilitating learning in advanced computer architecture through appropriate simulation","authors":"B. Gunther","doi":"10.1109/ACSC.2000.824388","DOIUrl":"https://doi.org/10.1109/ACSC.2000.824388","url":null,"abstract":"This paper examines the unique difficulties faced in teaching and learning in computer architecture at 4th-year level especially for computer science students with no engineering background. The University of South Australia's Computer Architecture subject was introduced in 1998 to provide final-year students with an in-depth treatment of computer architecture that will be relevant to software professionals. To explore topics in compiler optimisation, modern superscalar architectures, and high performance computing in a cached environment requires the support of processor simulation software in laboratory assignments. The PPS suite of software (simulator, assembler, C compiler, and utilities) were written to address the lack of suitable existing tools. PPS features sufficient realism to accommodate a broad range of student exercises, but this is offset by simplicity of design and ease of use to make learning enjoyable. Student feedback on the software was positive, especially with regard to enhancing understanding of material.","PeriodicalId":304540,"journal":{"name":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127055586","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
RAPTOR: rapid analysis, processing and transformation from online repositories RAPTOR:对在线资料库进行快速分析、处理和转换
J. Hildebrandt, R. Hollamby
{"title":"RAPTOR: rapid analysis, processing and transformation from online repositories","authors":"J. Hildebrandt, R. Hollamby","doi":"10.1109/ACSC.2000.824390","DOIUrl":"https://doi.org/10.1109/ACSC.2000.824390","url":null,"abstract":"Information repositories are being constructed to manage the increasing volumes of Imagery being collected. In addition to only storing and indexing this information users will want to process the information efficiently to generate new information or new ways of viewing the information. this paper describes the development of a linkage between an experimental Image Management System and an exploitation environment provided by the Java Advanced Imaging toolkit. An application of this linkage is described that delivers a dynamic image mosaic capability of imagery sourced from the underlying repository. The application is delivered by developing a server process that communicates with a map display client via Java Remote Method Invocation.","PeriodicalId":304540,"journal":{"name":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130123008","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 three-valued declarative debugging scheme 一个三值声明式调试方案
L. Naish
{"title":"A three-valued declarative debugging scheme","authors":"L. Naish","doi":"10.1109/ACSC.2000.824398","DOIUrl":"https://doi.org/10.1109/ACSC.2000.824398","url":null,"abstract":"Declarative debugging has many advantages over conventional approaches to debugging for logic and functional programs. This paper extends a previously defined scheme for declarative debugging in which computations were considered either correct or erroneous. We argue that a third value, \"inadmissible\", should be supported and show how this can be done. Two classes of bugs are defined: one equivalent to the bugs defined by the two valued scheme, the other associated with inadmissibility: it is shown how different instances of the scheme can be used to diagnose type errors, mode errors, violated assertions and abnormal termination as well as the more familiar classes of bugs detected by declarative debuggers.","PeriodicalId":304540,"journal":{"name":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130763360","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: 36
Formalisation of transformation-based learning 基于转变的学习的形式化
J. Curran, R. Wong
{"title":"Formalisation of transformation-based learning","authors":"J. Curran, R. Wong","doi":"10.1109/ACSC.2000.824380","DOIUrl":"https://doi.org/10.1109/ACSC.2000.824380","url":null,"abstract":"Research in automatic part of speech (POS) tagging has been dominated by Markov model (MM) taggers. E. Brill (1997) has recently described a transformation-based system with comparable accuracy, and simpler algorithms and representation than MM taggers. We present a set-based formal model of natural language ambiguity and semantic tagging that forms a basis for the generalisation of the transformation-based learning (TBL) and Brill's TBL tagger. We discuss empirical observations of the training algorithm that suggest a new evolutionary transformation learning strategy may dramatically improve learning time without loss of accuracy.","PeriodicalId":304540,"journal":{"name":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134039550","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: 12
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