ppxscal/embedding_network huggingface dataset:
Marine terminal facilities planning through simulation
Authors: Pradeep Batra
Venue: ACM SIGSIM Simulation Digest (1979)

This paper reviews the development of an interactive vessel scheduling and crude oil monitoring system for crude shipments from Alaska to the West Coast ports. The prime consideration in developing a computerized model was to provide an operational tool for scheduling the movements of a fleet of ARCO owned and chartered vessels. Utilizing the operating characteristics and design criteria obtained from the various operating groups, a model was developed to simulate the activities of the tanker fleet, the supply sources in Alaska, and the demand centers on the West Coast. For a given set of starting conditions, the model generates management reports that summarize crude inventory statistics at Alaska and West Coast ports, tanker lifting and delivery timings, refinery runouts at the demand centers and penalty situations at the supply sources. The ACM Portal is published by the Association for Computing Machinery. Copyright © 2010 ACM, Inc. Terms of Usage Privacy Policy Code of Ethics Contact Us Useful downloads: Adobe Acrobat QuickTime Windows Media Player Real Player
Tips on giving a good demo
Authors: Mary Fernández
Venue: ACM SIGMOD Record (2005)

For the first time this year, a "Best Demonstrations" session was included in the SIGMOD program. The first two days of the program included 24 demonstrations, each of which was presented during two of six interactive demo sessions. During the first two days, panels of three judges visited each demo group, each of whom was allotted 15 minutes to present their system to the judges. The friendly competition made for very exciting and noisy demo sessions!
A Framework to Improve QoS and Mobility Management for Multimedia Applications in the IMS
Authors: Fabricio Carvalho de Gouveia, Thomas Magedanz
Venue: Proceedings of the Seventh IEEE International Symposium on Multimedia (2005)

The new IP Multimedia Subsystem (IMS) provides an overlay architecture for IP based core networks and enables the efficient provision of an open set of potentially highly integrated multimedia services (I.e. instant messaging, video conferencing, VoIP, application sharing, etc) on top of possibly different access technologies. However, there will be different domains and IMSs managed by different ISPs (Internet Service Providers) in the Internet. Each ISP has an SLA (Service Level Agreement) established between its users, which defines what kind of resources and prices was agreed to be offered to each user. However there is no SLA between a visited domain and a mobile user. This paper analyses how to extend the QoS capabilities of the IMS offered to a mobile terminal when it roams among different domains. We propose a framework that integrates QoS and Mobility management. This integration envisages the improvement of the overall end-to-end performance and the reduction of management entities in the network. The architecture presents the Domain Policy Manager (DPM) as the Decision-making and controller of a domain. The proposed architecture uses policies with inter-domain negotiation. An application scenario to show the framework functionality is described as well as the current Status of the implementation.
Reconfigurable Parallel Approximate String Matching on FPGAs
Authors: Jin Hwan Park
Venue: Proceedings of the 8th Euromicro Conference on Digital System Design (2005)

This paper presents a design and implementation of a reconfigurable parallel approximate string matching hardware on FPGAs. The design is based on a linear systolic dataflow algorithm, and control logic is added to reconfigure the resulting hardware. For the k-differences version of the approximate string matching problem, the proposed approach finds all approximate occurrences of a pattern in the reference string, with the time complexity O(n+m) where n and m are lengths of the reference string and the pattern, respectively. Unlike other hardware approaches found in the literature, the design is size optimized since it uses only m PEs that are independent on the reference string length. Also the design is flexible for handling arbitrary size pattern strings within the maximum bound. The design is implemented and tested on the target device Xilinx Spartan 2S XC2S200EPQ208.
Binary Component Adaptation Technique and Supporting Tool
Authors: Jeong Ah Kim, KyungWhan Lee
Venue: Proceedings of the Third ACIS Int'l Conference on Software Engineering Research, Management and Applications (2005)

This research developed the technique necessary for the Adaptation of components and a tool which supports this. The Adaptation of components becomes necessary during the process of reusing or assembling components, and this is because the interface of the component is, in many cases, different than the component the developer wishes to assemble. Occasionally, additional attributes may need to be defined in accordance to new requirements. Consequently, the process for component adaptation is crucial for the reuse and assembly of components. In order to support the adaptation of components, this research proposes an adaptation technique dependent upon binary component adaptation techniques and adaptation components. In addition, a support tool was developed to support an effective adaptation process.
IPv6 R&D Activities in WIDE Project
Authors: Hiroshi Esaki, Akira Kato, Jun Murai
Venue: Proceedings of the International Symposium on Applications on Internet Workshops (2006)

The WIDE project, www.wide.ad.jp, is a research consortium among industry and academia. WIDE project is consist of more than four hundred active researchers from more than hundred private companies and from more than forty universities. The WIDE project operates the nation-wide R&D testbed, which is connected with many other R&D testbeds, and the NSPIXPs, that are the largest IXes in Japan. The main focus of WIDE project has been IPv6 technology and has established IPv6 testbed since 1998. Basically, all of R&D activities in WIDE project are based on the IPv6. This paper describes the overview of WIDE project's IPv6 R&D activities, such as KAME / USAGI / TAHI / Nautikus6 projects.
Some Simple Algorithms for Structural Comparison
Authors: Carter T. Butts, Kathleen M. Carley
Venue: Computational Mathematical Organization Theory (2005)

Structural comparison (i.e., the simultaneous analysis of multiple structures) is a problem which arises frequently in such diverse arenas as the study of organizational forms, social network analysis, and automated text analysis. Prior work has demonstrated the applicability of a range of standard multivariate analysis procedures to the structural comparison problem. Here, some simple algorithms are provided which elucidate several of these methods in an easily implemented form.
Chinese OOV translation and post-translation query expansion in chinese--english cross-lingual information retrieval
Authors: Ying Zhang, Phil Vines, Justin Zobel
Venue: ACM Transactions on Asian Language Information Processing (TALIP) (2005)

Cross-lingual information retrieval allows users to query mixed-language collections or to probe for documents written in an unfamiliar language. A major difficulty for cross-lingual information retrieval is the detection and translation of out-of-vocabulary (OOV) terms; for OOV terms in Chinese, another difficulty is segmentation. At NTCIR-4, we explored methods for translation and disambiguation for OOV terms when using a Chinese query on an English collection. We have developed a new segmentation-free technique for automatic translation of Chinese OOV terms using the web. We have also investigated the effects of distance factor and window size when using a hidden Markov model to provide disambiguation. Our experiments show these methods significantly improve effectiveness; in conjunction with our post-translation query expansion technique, effectiveness approaches that of monolingual retrieval.
Nonlinear least-square solution to flat-top pattern synthesis using arbitrary linear array
Authors: Yuan Wen, Woon S. Gan, Jun Yang
Venue: Signal Processing (2005)

This paper presents a new approach for synthesizing flat-top patterns, based on the least-square error criterion. The cost function is formulated according to the amplitude approximation error without phase constraint. The optimal array weight is obtained by using the Levenberg-Marquardt nonlinear optimization algorithm. Simulations are performed to compare the proposed approach with the Woodward-Lawson method and two recent methods using minimax and adaptive array techniques, respectively. The results indicate that the approach is effective in sidelobe control and synthesizing prespecified patterns for arbitrary linear arrays.
Improving Thermal-Safe Test Scheduling for Core-Based Systems-on-Chip Using Shift Frequency Scaling
Authors: Enkelejda Tafaj, Paul Rosinger, Bashir M. Al-Hashimi, Krishnendu Chakrabarty
Venue: Proceedings of the 20th IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems (2005)

Recently we have shown how hot-spots during test can be avoided without unnecessarily increasing the testing time by using a thermal-safe test scheduling approach [14]. In this work, we investigate the impact of scan shift frequency scaling on the thermal-safe test scheduling performance and propose an algorithm which embeds shift frequency scaling into the test scheduling process. Experimental results show that this approach offers shorter overall testing times and significantly improved ability of meeting tight thermal constraints when compared to existing thermal-safe test scheduling approach based on a fixed scan shift frequency.
Using Predictive Control to Synchronize Chaotic Systems
Authors: S. V. Efremov, B. T. Polyak
Venue: Automation and Remote Control (2005)

A method of synchronization of several identical chaotic systems using a new type of control was proposed. It is based on predicting the trajectories of each of the nonlinear systems and correcting them by the deviation of the prediction from the desired value. Three types of control with global interaction between the systems, local interaction between the systems, and one leading oscillator affecting the rest of them were proposed. After synchronization, all systems make identical chaotic motions. This method features low level of the control action; in principle, control may be made arbitrarily small. Numerical modeling bore out efficiency of this method for any number of oscillators.
A Scalable Fingerprinting Scheme for Tracing Traitors/Colluders in Large Scale Contents Distribution Environments
Authors: Jae-Min Seol, Seong-Whan Kim
Venue: Proceedings of the 5th International Conference on Intelligent Systems Design and Applications (2005)

Fingerprinting schemes use digital watermarks to determine originators of unauthorized/pirated copies. Multiple users may collude and collectively escape identification by creating an average or median of their individually watermarked copies. We present a scalable codebook generation scheme to increase the number of fingerprinted users. We extended the ACC (anti-collusion code) scheme using a Gaussian distributed random variable for medium attack robustness. We experimented with our scheme using human visual system based watermarking scheme, and the simulation results with standard test images show good collusion detection performance over average and median collusion attacks.
Ownership confinement ensures representation independence for object-oriented programs
Authors: Anindya Banerjee, David A. Naumann
Venue: Journal of the ACM (JACM) (2005)

Representation independence formally characterizes the encapsulation provided by language constructs for data abstraction and justifies reasoning by simulation. Representation independence has been shown for a variety of languages and constructs but not for shared references to mutable state; indeed it fails in general for such languages. This article formulates representation independence for classes, in an imperative, object-oriented language with pointers, subclassing and dynamic dispatch, class oriented visibility control, recursive types and methods, and a simple form of module. An instance of a class is considered to implement an abstraction using private fields and so-called representation objects. Encapsulation of representation objects is expressed by a restriction, called confinement, on aliasing. Representation independence is proved for programs satisfying the confinement condition. A static analysis is given for confinement that accepts common designs such as the observer and factory patterns. The formalization takes into account not only the usual interface between a client and a class that provides an abstraction but also the interface (often called &ldquo;protected&rdquo;) between the class and its subclasses.
Use of Exterior Contours and Shape Features in Off-line Signature Verification
Authors: Siyuan Chen, Sargur Srihari
Venue: Proceedings of the Eighth International Conference on Document Analysis and Recognition (2005)

An approach to off-line signature verification, one with an on-line flavor, is described. A sequence of data is obtained by tracing the exterior contour of the signature which allows the application of string-matching algorithms. The upper and lower contours of the signature are first determined by ignoring small gaps between signature components. The contours are combined into a single sequence so as to define a pseudo-writing path. To match two signatures a non-linear normalization method, viz., dynamic time warping, is applied to segment them into curves. Shape descriptors based on Zernike moments are extracted as features from each segment. A harmonic distance is used for measuring signature similarity. Performance is significantly better than that of a word-shape based signature verification method. When the two methods are combined, the overall performance is significantly better than either method alone. With a database of 1320 genuines and 1320 forgeries the combination method has an accuracy of 95% (with 20% rejection) which is comparable to that of on-line systems.
Documenting simulation studies for management
Authors: Belva J. Cooley
Venue: ACM SIGSIM Simulation Digest (1979)

This paper provides a discussion of the purposes of simulation documentation and the role of documentation in gaining management acceptance and implementation of recommendations. A documentation approach is suggested which is directed toward providing management with an end-product, documentation, which will be useful in decision making. Guidelines are given for writing simulation documentations which are aimed at several levels of management audiences.
Interference Distribution in the Nakagami FadingWireless CDMA Ad Hoc Networks with Multi-Code Multi-Packet Transmission (MCMPT)
Authors: Lili Zhang, Boon-Hee Soong
Venue: Proceedings of the The IEEE Conference on Local Computer Networks 30th Anniversary (2005)

In this paper, we derive the distribution of Multiple Access Interference (MAI) power for wireless Code Division Multiple Access (CDMA) ad hoc networks operating in a general Nakagami-m fading channel model. Furthermore, we propose a Multi-Code Multi-Packet Transmission (MCMPT) scheme for it to increase the performance, in terms of the expected forward progress. Based on the instantaneous good channel conditions in a Nakagami-m fading channel, a node can initiate flexible number of parallel transmission of multiple packets on multiple codes. Numerical results show that adaptive MCMPT considering varying channel conditions not only outperforms the nonadaptive Conventional Packet Transmission (CPT), but also achieves better progress improvement with the increasing values of parametermin a slowly-varying Nakagami-m fading channel.
Transliteration of Online Handwritten Phonetic Pitman's Shorthand with the Use of a Bayesian Network
Authors: Swe Myo Htwe, Colin Higgins, Graham Leedham, Ma Yang
Venue: Proceedings of the Eighth International Conference on Document Analysis and Recognition (2005)

This paper presents a detailed view of a novel solution to the computer transcription of handwritten Pitman's shorthand as a means of rapid text entry (up to 100 words per minute) into today's handheld devices with the use of a Bayesian network representation. Detailed design considerations of Bayesian network based shorthand outline models, including hypothesis of missing vowel components occurring in speed writing and unclear thickness and length of electrical pen-strokes are presented, along with graphical examples. Although Pitman's shorthand is written phonetically, our outline models are also based on low-level geometric attributes rather than phonetic attributes with the intention of coping with the unique features of handwritten Pitman's shorthand. The experimental results indicate an average accuracy of 92.86%, which is a marked improvement over previous applications of the same framework.
WebGuard: A Web Filtering Engine Combining Textual, Structural, and Visual Content-Based Analysis
Authors: Mohamed Hammami Youssef Chahir Liming Chen
Venue: IEEE Transactions on Knowledge and Data Engineering (2006)

Along with the ever-growing Web comes the proliferation of objectionable content, such as sex, violence, racism, etc. We need efficient tools for classifying and filtering undesirable Web content. In this paper, we investigate this problem and describe WebGuard, an automatic machine learning-based pornographic Web site classification and filtering system. Unlike most commercial filtering products, which are mainly based on textual content-based analysis such as indicative keywords detection or manually collected black list checking, WebGuard relies on several major data mining techniques associated with textual, structural content-based analysis, and skin color related visual content-based analysis as well. Experiments conducted on a testbed of 400 Web sites including 200 adult sites and 200 nonpornographic ones showed WebGuard's filtering effectiveness, reaching a 97.4 percent classification accuracy rate when textual and structural content-based analysis was combined with visual content-based analysis. Further experiments on a black list of 12,311 adult Web sites manually collected and classified by the French Ministry of Education showed that WebGuard scored a 95.62 percent classification accuracy rate. The basic framework of WebGuard can apply to other categorization problems of Web sites which combine, as most of them do today, textual and visual content.
Predicting healthcare costs using GAs
Authors: C. R. Stephens, H. Waelbroeck, S. Talley
Venue: Proceedings of the 2005 workshops on Genetic and evolutionary computation (2005)

Predicting prospective healthcare costs is of increasing importance. Genetic search is used to discover attribute sets and associated posterior probability classifiers that predict the top 0.5% most costly individuals in year N + 1 based on previous medical conditions and costs in year N. The predictive performance of single-variable classifiers (cost-drivers), found using statistical measures familiar from datamining, as well as Naive Bayesian analysis, are compared and contrasted with that of classifiers found using genetic search. Comparison is also made with two well known benchmarks from the healthcare literature.
Design and Implementation of the Remote Control Lab Using PDA
Authors: Ping-Huang Wu, Ching-Chung Lin, Chin-Hwa Kuo
Venue: Proceedings of the IEEE International Workshop on Wireless and Mobile Technologies in Education (2005)

The purpose of this paper is to design and implement the remote control lab using PDA (Personal Digital Assistant). This system integrates different fields of technology. They are Internet control, mobile control, and e-learning. We expend the e-learning to m-learning (mobile-learning). The wired control will become wireless control. Thus, the teaching will not be limited by time and location, and teaching resources and equipments can be integrated and shared, so the safety events can be monitored and handled in time. We provide an environment to train students to handle factory automation, data acquisition, data management, and manufacturing process using mobile devices. In addition, we also emphasize the integration and sharing of teaching equipments via internet and provide an environment which promotes learning interests and efficiency by using mobile devices via Internet.
EPIMOD: exposing students to health care decision-making and societal problems
Authors: Harold Joseph Highland
Venue: ACM SIGSIM Simulation Digest (1979)

The use of the computer in education has expanded exponentially in the past quarter of a century. And the use of computer simulation models has proven highly successful as a mode for individual student experimentation. EPIMOD - an epidemic simulation model - was created by the author to provide the scenario to expose health science students (as well as computer science majors) to decision-making techniques and to the analysis of many of the societal problems related to health care services. The ACM Portal is published by the Association for Computing Machinery. Copyright © 2010 ACM, Inc. Terms of Usage Privacy Policy Code of Ethics Contact Us Useful downloads: Adobe Acrobat QuickTime Windows Media Player Real Player
Multiple Handwritten Text Line Recognition Systems Derived from Specific Integration of a Language Model
Authors: Roman Bertolami, Horst Bunke
Venue: Proceedings of the Eighth International Conference on Document Analysis and Recognition (2005)

This paper investigates the generation and use of multiple recognition results to improve the performance of an offline handwritten text line recognition system. Multiple recognition results are created by specific integration of a language model in the hidden Markov model based recognition system. The ROVER algorithm is applied to combine the multiple results. Experiments conducted on the IAM database show that the proposed system is able to produce statistically significant improvements in the recognition rate compared to the original system.
Line editor to text editor conversion
Authors: John R. Talburt
Venue: ACM SIGDOC Asterisk Journal of Computer Documentation (1984)

I attended the Third International Conference on Systems Documentation held this past May in Mexico City. This conference was not only enjoyable and informative, but also inspirational. The following article describes an application that is an outgrowth of several ideas presented at the conference and tutorial session. I would like to thank all of the organizers of this meeting, especially Ms. Patterson and Senor Figueroa, for a job well done.
Guest Editor's Introduction: Special-Purpose Computing
Authors: Steven Gottlieb
Venue: Computing in Science and Engineering (2006)

My awareness of special-purpose computing goes back quite a long time. In the early 1980s, my former grad-school housemate and (still) good friend Doug Toussaint worked with Bob Pearson and John Richardson on a special-purpose computer to study the Ising model. They constructed and successfully used that computer, but by 1983, when Doug and I met up again at the University of Southern California, San Diego (UCSD), he was using the Ising model computer in his office as a coffeemaker stand, not for studying hot Ising spins. By serving as guest editor, I hoped to find a mix of mature and emerging projects that would provoke readers to wonder whether their own problems would be suited with a special-purpose computer.