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Proceedings of the 1967 22nd national conference最新文献

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A computer analysis of chronologies in Genesis 《创世纪》年表的计算机分析
Pub Date : 1967-01-01 DOI: 10.1145/800196.806000
David E. Y. Sarna
Biblical Scholars have long been intrigued by the chronology of the Book of Genesis. Most scholars today agree that the unnaturally large ages mentioned do not represent literal numbers. Professor E. A. Speiser 1 suggested, regarding the literalness of the numbers in Genesis, that One can see at a glance that the Masoretic [received] text is transparently schematic. 1 J. Skinner explains the differences between the Biblical versions as follows: These differences [in chronology, between the Masoretic text, the Septuagint and the Samaritan Torah] are certainly not accidental. They are due to carefully constructed artificial systems of chronology.... That problem has never been satisfactorily solved. 2 A search of the literature** did not turn up a satisfactory schematic arrangement; It can be seen that the life-spans are arranged in a pattern such that while the left term decreases by two, the squared term increases by one. This suggested that perhaps the chronologies in Genesis could be arranged into a scheme of factors not dissimilar to this one. Our first problem was to look for additional examples of this kind, taking into account the 64 different numbers in Genesis.
长期以来,圣经学者一直对《创世纪》的年表很感兴趣。今天大多数学者都同意,提到的非自然的大年龄并不代表字面上的数字。E. a . Speiser教授认为,关于《创世纪》中数字的字面意义,人们一眼就能看出,马所拉文本显然是一个示意图。1 J.斯金纳这样解释圣经版本之间的差异:这些差异(在年表上,马所拉文本、七十士译本和撒玛利亚Torah)当然不是偶然的。它们是由于精心构建的人工年表系统....那个问题从来没有得到满意的解决。查阅文献**没有找到令人满意的原理图排列;可以看出,寿命是这样排列的:左边的项减少2,平方项增加1。这表明,也许《创世纪》中的年表可以被安排成一个与这个没有什么不同的因素方案。我们的第一个问题是,考虑到创世纪中64个不同的数字,寻找其他类似的例子。
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引用次数: 0
The complexity of loop programs 循环程序的复杂性
Pub Date : 1967-01-01 DOI: 10.1145/800196.806014
A. Meyer, D. Ritchie
Anyone familiar with the theory of computability will be aware that practical conclusions from the theory must be drawn with caution. If a problem can theoretically be solved by computation, this does not mean that it is practical to do so. Conversely, if a problem is formally undecidable, this does not mean that the subcases of primary interest are impervious to solution by algorithmic methods. In the next section we describe such a class of programs, called “Loop programs.” Each Loop program consists only of assignment statements and iteration (loop) statements, the latter resembling the DO statement of FORTRAN, and special cases of the FOR and THROUGH statements of ALGOL and MAD. The bound on the running time of a Loop program is determined essentially by the length of the program and the depth of nesting of its loops.
任何熟悉可计算性理论的人都会意识到,从该理论中得出实际结论必须谨慎。如果一个问题在理论上可以通过计算来解决,这并不意味着这样做是实际的。相反,如果一个问题在形式上是不可判定的,这并不意味着主要利益的子案例不受算法方法的影响。在下一节中,我们将描述这样一类程序,称为“循环程序”。每个循环程序只由赋值语句和迭代(循环)语句组成,后者类似于FORTRAN的DO语句,以及ALGOL和MAD的FOR和THROUGH语句的特殊情况。循环程序的运行时间界限本质上是由程序的长度和循环的嵌套深度决定的。
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引用次数: 191
The SDC Time-Sharing System revisited 重新审视SDC分时系统
Pub Date : 1967-01-01 DOI: 10.1145/800196.805996
J. I. Schwartz, C. Weissman
In the light of accelerating interest, it seems worthwhile to review both the current status of TSS and some of the predictions made three years ago. Our review will include a brief overview of system changes, a discussion in some depth of resource allocation (which now appears to be the critical factor in general-purpose time-sharing systems), and some conclusions regarding how well our statements have withstood the test of time.
鉴于人们对TSS的兴趣日益浓厚,似乎有必要回顾一下TSS的现状和三年前做出的一些预测。我们的回顾将包括对系统变化的简要概述,对资源分配的深入讨论(现在看来这是通用分时系统的关键因素),以及关于我们的语句如何经受住时间考验的一些结论。
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引用次数: 10
An approach to standardizing computer systems 一种使计算机系统标准化的方法
Pub Date : 1967-01-01 DOI: 10.1145/800196.806021
Edward Morenoff, J. McLean
The fundamental goal of an evolutionary approach to upgrading a computer installation is the maintenance of a continuity of operation as various elements of the installation (equipment components and system support programs) are replaced. The realization of this goal requires the isolation and separation of the inter-dependencies which now exist between the various elements of a computer installation. This includes the inter-dependencies between programs and the characteristics of equipment components, between programs and the characteristics of other programs, and between equipment components and the characteristics of other equipment components.
升级计算机安装的进化方法的基本目标是在安装的各种元素(设备组件和系统支持程序)被替换时保持操作的连续性。要实现这一目标,就必须隔离和分离目前存在于计算机安装的各个要素之间的相互依赖关系。这包括程序与设备组件特性之间的相互依赖关系,程序与其他程序特性之间的相互依赖关系,以及设备组件与其他设备组件特性之间的相互依赖关系。
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引用次数: 4
FDIC Bank Management Simulation FDIC银行管理模拟
Pub Date : 1967-01-01 DOI: 10.1145/800196.805989
K. J. Cohen, J. T. Heames
The following paper describes research that the authors are currently conducting in the development of a large, complex bank management simulation. The simulation, to be called the FDIC Bank Management Simulation, will be a computer model of commercial banks competing against one another and other financial institutions in the economic marketplace.
下面的论文描述了作者目前在开发一个大型、复杂的银行管理模拟中所进行的研究。这个模拟,被称为FDIC银行管理模拟,将是商业银行和其他金融机构在经济市场上相互竞争的计算机模型。
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引用次数: 2
Machine organization for multiprogramming 多道程序设计的机器组织
Pub Date : 1967-01-01 DOI: 10.1145/800196.805984
P. Wegner
This paper is intended as an introduction to some of the basic concepts of multiprogramming for readers who wish to study the more specialized literature in this field. It attempts to develop a framework for the discussion of multiprogramming which motivates the forms of machine organization used in current multiprogramming systems. The key requirement in multiprogramming systems is that information structures be represented in a hardware-independent form until the moment of execution, rather than being converted to a hardware-dependent form at load time. This requirement leads directly to the concept of hardware-independent virtual address spaces, and to the concept of virtual processors which are linked to physical computer resources through address mapping tables. The structure of the class of hardware-independent virtual processors in the IBM 360 model 67 and GE 645 systems (1), (2), (3), (4), is developed in some detail. Questions of efficiency of throughput in the resulting class of computer systems are considered.
本文旨在为希望研究该领域更专业文献的读者介绍多道程序设计的一些基本概念。它试图开发一个讨论多道程序设计的框架,以激发当前多道程序设计系统中使用的机器组织形式。多道程序设计系统的关键要求是,信息结构在执行之前都以与硬件无关的形式表示,而不是在加载时转换为与硬件相关的形式。这个需求直接导致了硬件无关的虚拟地址空间的概念,以及通过地址映射表链接到物理计算机资源的虚拟处理器的概念。对IBM 360 model 67和GE 645系统(1)、(2)、(3)、(4)中与硬件无关的虚拟处理器类的结构进行了详细的研究。考虑了由此产生的计算机系统的吞吐量效率问题。
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引用次数: 9
Autodoc: Computer-based assistance for document production Autodoc:基于计算机的文件制作辅助工具
Pub Date : 1967-01-01 DOI: 10.1145/800196.805987
M. Callahan, G. L. Grace
Autodoc is a man-machine system designed to provide automated documentation capability to assist professional and secretarial personnel in carrying out their routine work assignments. The initial application is the production of user documentation. However, design intent is not limited to this single application. The completed system permits broad application by a variety of users. This system provides automated capability for document production, maintenance, and bookkeeping.
Autodoc是一个人机系统,旨在提供自动文档功能,以协助专业人员和秘书人员执行日常工作任务。最初的应用程序是生成用户文档。然而,设计意图并不局限于这个单一的应用程序。完成的系统允许各种用户的广泛应用。该系统为文件的生成、维护和簿记提供了自动化的能力。
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引用次数: 3
A computer method for the arrangement of phytosociological tables 一种排列植物社会学表的计算机方法
Pub Date : 1967-01-01 DOI: 10.1145/800196.805999
G. Moore, W. S. Benninghoff, P. S. Dwyer
A phytosociological table is a matrix, each of whose rows corresponds to the occurrence of a particular plant species and each of whose columns corresponds to a sample plot in which the several species occur. Each plot list is called a releve. The elements of this matrix are binary, corresponding to the presence or absence of each species in each plot. Thus if the ith species is present in the jth releve, then the ijth element of the phytosociological table is equal to one; if the ith species is not present in the jth releve, then the ijth element is equal to zero. For over half a century, botanists have used tables of this kind to indicate patterns of association among species of plants by showing which combinations of species are either mutually present or mutually absent in groups of releves.1 One of the major problems in communicating the information in one of these tables is the problem of arranging the order of the rows and columns of the table so as best to display the relationships of mutual presence and mutual absence among the species. This problem has been solved in the past by selecting the best of a series of trial arrangements, based on the botanist's experience of putative associations among the several plant species and similarities among the releves in the table. While this method is adequate for most displays, it suffers from at least two serious drawbacks. First, the number of trial arrangements which the botanist may test in a reasonable amount of time is quite small; second, the arrangements which are most likely to be attempted are highly dependent on the training and experience of the individual botanist. In other words, it is quite possible that the “best” arrangement of species and releves for the display of a particular phytosociological table may vary substantially from botanist to botanist. In the interest of speeding up this procedure and making it more objective, we present a computer program for the arrangement of phytosociological tables.
植物社会学表是一个矩阵,它的每一行对应于一个特定植物物种的发生,每一列对应于几个物种发生的样地。每个情节表称为一个等级。这个矩阵的元素是二元的,对应于每个地块中每个物种的存在或不存在。因此,如果第i种存在于第j层,则植物社会学表的第ij元素等于1;如果第i个元素不存在于第j个元素中,则第i个元素等于零。半个多世纪以来,植物学家一直使用这种表来表明植物物种之间的联系模式,方法是显示在相关组中哪些物种组合是相互存在的,哪些是相互不存在的在这些表格中传达信息的一个主要问题是如何安排表格的行和列的顺序,以便最好地显示物种之间相互存在和相互缺失的关系。过去解决这个问题的方法是,根据植物学家对几个植物物种之间的假定联系和表中各物种之间的相似性的经验,从一系列试验安排中选择最好的安排。虽然这种方法适合大多数显示器,但它至少有两个严重的缺点。首先,植物学家在合理的时间内可以试验的试验安排的数量是相当少的;其次,最可能尝试的安排在很大程度上取决于植物学家个人的训练和经验。换句话说,很可能不同的植物学家对展示某一特定植物社会学表的物种和相关性的“最佳”安排有很大的不同。为了加快这一过程并使其更加客观,我们提出了一个排列植物社会学表的计算机程序。
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引用次数: 5
A Chebyshev method for the numerical solution of the one-dimensional heat equation 一维热方程数值解的切比雪夫方法
Pub Date : 1967-01-01 DOI: 10.1145/800196.805982
J. Mason
Chebyshev series can be used not only for representing explicit functions but also for solving differential equations. Two Chebyshev methods, the selected points method and the tau method, have been described by Lanczos2 for the solution of ordinary differential equations. Moreover both methods have applications to partial differential equations. In a previous paper1 we have applied the selected points technique to derive a two-dimensional Chebyshev method for the solution of partial differential equations over bounded regions. And in the present paper we generalize the tau method to provide a one-dimensional method for the solution of the heat conduction equation over an infinite strip.
切比雪夫级数不仅可以用来表示显式函数,而且可以用来求解微分方程。Lanczos2给出了求解常微分方程的两种切比雪夫方法,即选择点法和tau法。此外,这两种方法都适用于偏微分方程。在以前的一篇论文中,我们已经应用选择点技术导出了求解有界区域上偏微分方程的二维切比雪夫方法。在本文中,我们推广了tau方法,提供了一种求解无限大条带上热传导方程的一维方法。
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引用次数: 2
UMPIRE: An automatic Kriegsspiel referee for a time-shared computer 裁判员:为分时电脑自动裁判员
Pub Date : 1967-01-01 DOI: 10.1145/800196.805988
John F. Burger
This paper describes a computer program called UMPIRE that performs all the functions of an actual live referee for the game of Kriegsspiel. The program is written in LISP 1.5 for the System Development Corporation Q-32 Time-Sharing System. With slight modifications to the I/O functions, UMPIRE could be made operable on any computer having a LISP 1.5 compiler. The basic functions of the program are translatable into LISP 2.
本文介绍了一个名为UMPIRE的计算机程序,该程序执行了Kriegsspiel比赛中实际裁判的所有功能。该程序是在系统开发公司Q-32分时系统用lisp1.5编写的。只要稍微修改一下I/O函数,UMPIRE就可以在任何有lisp1.5编译器的计算机上运行。程序的基本功能可以翻译成lisp2语言。
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引用次数: 4
期刊
Proceedings of the 1967 22nd national conference
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