A performance evaluation of the IBM 370/XT personal computer

An evaluation of the IBM 370/XT personal computer is given. This evaluation focuses primarily on the use of the 370/XT for scientific and technical applications and applications development. A measurement of the capabilities of the 370/XT was performed by means of test programs which are presented. Also included is a review of facilities provided by the operating system (VM/PC), along with comments on the IBM 370/XT hardware configuration

An introduction to statistical methods in machine translation

The intention of this article is to provide a concise introduction to the basic mathematical concepts of statistical translation models as they were introduced by Brown et al. (1993) in their groundbreaking work The Mathematics of Statistical Machine Translation: Parameter Estimation. We concentrate on a simplified description of the first two translation models known as IBM Model 1 and 2. It is one major aim of this work to serve as tutoring material for students of computational linguistics, mathematics or computer science and therefore a lot of comments, additional examples and step-by-step explanations are given, augmenting the original formula by Brown et al. (1993). For both discussed models the calculations for a small parallel corpus are described in detail. The intention of this article is to provide a concise introduction to the basic mathematical concepts of statistical translation models as they were introduced by Brown et al. (1993) in their groundbreaking work The Mathematics of Statistical Machine Translation: Parameter Estimation. We concentrate on a simplified description of the first two translation models known as IBM Model 1 and 2. It is one major aim of this work to serve as tutoring material for students of computational linguistics, mathematics or computer science and therefore a lot of comments, additional examples and step-by-step explanations are given, augmenting the original formula by Brown et al. (1993). For both discussed models the calculations for a small parallel corpus are described in detail

Pure States Tomography with Fourier Transformation

Quantum computer is showing its dramatic potential in nowadays information processing. However, by the rule of quantum mechanics, the output state of a quantum computer could be a general superposed quantum state, which can not be directly readout as the output of a classical computer. In this paper, we construct minimal measurement resources for uniquely determination of $N$-qubit pure state. Two adaptive protocols are proposed and the quantum circuits for each protocol are depicted. Additionally, the experiments on IBM 5-qubit quantum computer, as well as the numerical investigations demonstrate their feasibility.Comment: 8 pages+10 figures. All comments welcome

Macroscopic description of complex adaptive networks co-evolving with dynamic node states

ACKNOWLEDGMENTS This work was carried out within the framework of PIK’s COPAN project. M.W. was supported by the German Federal Ministry for Science and Education via the BMBF Young Investigators Group CoSy-CC2 (Grant No. 01LN1306A). J.F.D. and W.L. acknowledge funding from the Stordalen Foundation (Norway) via the PB.net initiative and BMBF (project GLUES) and J.K. acknowledges the IRTG 1740 funded by Deutsche Forschungsgesellschaft (DFG) (Germany) and FAPESP. We thank R. V. Donner for helpful comments and suggestions on the manuscript and R. Grzondziel and C. Linstead for help with the IBM iDataPlex Cluster at the Potsdam Institute for Climate Impact Research.Peer reviewedPublisher PD

1401 multiple utility program with simultaneous input-output processing

The purpose of this report is to describe POGINOUT, a simultaneous input-output utility program for the IBM 1401 computer. The procedure is given for writing any 1401 program with simultaneous input-output. The description and procedure can be used in writing similar utility programs for 1401\u27s used as peripheral equipment to a larger computer. The report contains comments on procedures not used in POGINOUT but which might be appropriate under slightly different conditions. Familiarity with this program aids in optimum use of the POGO executive system. The normal user will find those sections pertaining to code words and carriage control the most useful