ppxscal/embedding_network huggingface dataset:
A Virtual MCQA Information System Based on Flexsim
Authors: Shu-hai Fan, Zhi Zhou, Qian Shen
Venue: Proceedings of the 2009 Second International Symposium on Knowledge Acquisition and Modeling - Volume 01 (2009)

To predict and provide the "confidence" that whether all the quality requirements needed can be satisfied in Mass Customization, a virtual Mass Customization quality assurance (MCQA) system was built in the Flexsim environment. Then the Flexsim based system was extended in several ways. First, use FlexScript/C++ to implement the quality assurance simulation, the quality monitoring and quality control. Second, use Excel commands combined with macro-commands to extend its quality management function. Third, use Socket and ODBC respectively for the real-time data communication and nonreal-time database sharing. Finally, build a self-defined GUI to integrate all the functional modules. Some pivotal source codes of the system were also given. 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
Improved sequential MAP estimation of CABAC encoded data with objective adjustment of the complexity/efficiency tradeoff
Authors: Salma Ben Jamaa, Michel Kieffer, Pierre Duhamel
Venue: IEEE Transactions on Communications (2009)

This paper presents an improved sequential MAP estimator to be used as a joint source-channel decoding technique for CABAC encoded data. The decoding process is compatible with realistic implementations of CABAC in standards like H.264, i.e, handling adaptive probabilities, context modeling and integer arithmetic coding. Soft-input decoding is obtained using an improved sequential decoding technique, which allows to obtain a tradeoff between complexity and efficiency. The algorithms are simulated in a context reminiscent of H264. Error detection is realized by exploiting on one side the properties of the binarization scheme and on the other side the redundancy left in the code string. As a result, the CABAC compression efficiency is preserved and no additional redundancy is introduced in the bit stream. Simulation results outline the efficiency of the proposed techniques for encoded data sent over AWGN and UMTS-OFDM channels.
Research on a Perfect Zero Side Effect Group Rekeying Scheme
Authors: Jing Liu, Minmin Liu
Venue: Proceedings of the 2009 International Conference on Multimedia Information Networking and Security - Volume 02 (2009)

Most modern multimedia applications rely on a group communication pattern. To protect the group communication data during transit, a symmetric key called group key must be used to encrypt all the group communication. Group rekeying is a key management mechanism that ensures that the group key is rekeyed upon every single change in membership. However, for most current group rekeying schemes, to rekey the group key, various degrees of side effects will be induced upon all the members in the same group. In this paper, based on trusted platform technology, we propose the first perfect zero side effect group rekeying scheme at the time of writing.
Seismogenic zone-dependent time-clustering behaviour in Italian seismicity
Authors: Luciano Telesca, Vincenzo Lapenna, Michele Lovallo
Venue: Computers Geosciences (2005)

We performed the Allan factor analysis on the 1986-2001 seismicity of the 80 seismogenetic zones in which the Italian territory has been subdivided by the Gruppo Nazionale Difesa dai Terremoti (GNDT), in order to investigate the presence of time-correlated behaviour. Power-law time-correlated areas have been identified analyzing the aftershock-depleted seismicity. Strong variability in the scaling properties has been found, suggesting that different dynamical mechanisms govern the seismic activity of the Italian seismogenetic zones.
The Fault-Tolerant Design in Space Information Processing System Based on COTS
Authors: Jian Fu, Chunyuan Zhang
Venue: Proceedings of the 2009 Second International Workshop on Computer Science and Engineering - Volume 02 (2009)

In order to make Space Information Processing System (SIPS) based on Commercial-Off-The-Shelf (COTS) have a much stronger ability of radiation resistance in space, this paper presents multilevel fault-tolerant technique based on FPGA and Single Event Latch-up (SEL) resistance protection circuit. The multilevel fault-tolerant technique includes the dual fault-tolerant design on system level, the redundancy design of memory on module level and the fault-tolerant design of FPGA on chip level. By reliability analysis and experimentation, it can be concluded that the reliability of SIPS has been greatly increased by making use of fault-tolerant design. Moreover, this fault-tolerant design has been implemented successfully and run well.
Research on Precise Synchronization for TMR Fault-Tolerant Embedded Computer
Authors: Wei-gong Zhang, Yong-xiang Zhang, Yuan-yuan Shang, Yong Guan, Qing-lin Qiu, Ming-rui Xin
Venue: Proceedings of the 2009 International Conference on Multimedia Information Networking and Security - Volume 02 (2009)

This article presents a precise synchronization algorithm based on status tracking and locking mechanism. Tracking execution state of triple computer and running state of time base counter through dual state machine not only can implement precise synchronization of TMR computer, making status synchronization precision and time-base synchronization precision below 30ns, but also save valuable interconnection resource, reduce implementation cost and other overhead of system resources.
A comparison of fractal dimension estimators based on multiple surface generation algorithms
Authors: Guiyun Zhou, Nina S. -N. Lam
Venue: Computers Geosciences (2005)

Fractal geometry has been actively researched in a variety of disciplines. The essential concept of fractal analysis is fractal dimension. It is easy to compute the fractal dimension of truly self-similar objects. Difficulties arise, however, when we try to compute the fractal dimension of surfaces that are not strictly self-similar. A number of fractal surface dimension estimators have been developed. However, different estimators lead to different results. In this paper, we compared five fractal surface dimension estimators (triangular prism, isarithm, variogram, probability, and variation) using surfaces generated from three surface generation algorithms (shear displacement, Fourier filtering, and midpoint displacement). We found that in terms of the standard deviations and the root mean square errors, the triangular prism and isarithm estimators perform the best among the five methods studied.
Data recovery in a photo-digital storage system
Authors: R. L. Griffith
Venue: IBM Journal of Research and Development (1969)

A data-recovery feature has been developed for recovering electron-beam recorded information which is microscopic in dimension and has been partially obliterated by flaws in a photographic-film recording medium. This feature provides (1) backup procedures that exploit redundancies in the recording format for the synchronization and identification of data, (2) coding for error detection and correction of 5 independent characters in5 0 data character lines, (3) variation of machine parameters that affect reading performance, and (4) statistically optimized schedules for applying a variety of recovery techniques. Error rate is reduced from one error line in about 100 lines to less than one error line in 2.7 × 106 lines.
Design of hierarchical fuzzy model for classification problem using GAs
Authors: Nai Ren Guo, Tzuu-Hseng S. Li, Chao-Lin Kuo
Venue: Computers and Industrial Engineering (2006)

This paper proposes a new hierarchical fuzzy model (HFM) to solve the classification problem. The developed classification model comprises of two stages; one is to generate the fuzzy IF-THEN rules for each subsystem and the other is to determine the classification unit. For the classification problem, number of rules and the correct classification rate are the fundamental requirements. In this paper, we also advance two genetic algorithms (GAs) to tune the HFM. One is used to determine the combination of the input features for each subsystem on the HFM and the other is to reduce the number of rules in each fuzzy subsystem. The performance has been tested by simulations on the well known Wine and Iris databases. Simulations demonstrate that the proposed HFM under a few rules can provide sufficiently high classification rate even with higher feature dimensions.
Automated Key Management for Router Updates
Authors: John William Atwood
Venue: Proceedings of the 2009 First International Conference on Emerging Network Intelligence (2009)

Security is assuming increasing importance in emerging networks. To ensure application security, the routing protocols are assumed to be trusted. Correct forwarding of packets requires the prior exchange of information among routers, using the appropriate routing protocol. Valid construction of the routes requires that the exchanged information be received from a legitimate neighbor, and that it not be altered en route, i.e., the inter-router communication has to be secure. This requires, in turn, an architecture for managing the necessary security associations and keying material within an administrative region. After reviewing current work and existing security tools, a proposal is made for a novel architecture to manage the router updates. The operations within this architecture are detailed, and its advantages are explained.
Proceeding of the ACM first international workshop on Data-intensive software management and mining
Venue: Conference on Information and Knowledge Management (2009)

It is our great pleasure to welcome you to the 1st ACM Workshop on Data-intensive Software Management and Minings -- DSMM'09. This year's workshop will be a forum for presentation of research results and experience reports on leading edge issues of managing and mining large-scale software repositories, including multi-version source code, bug reports, and development history, in order to support software design, development, and maintenance processes. The program consists of papers that cover a variety of topics, including next generation access control models, engineering and analysis techniques for access control policies and models, and security administration. In addition, the program includes a keynote speech by Brendan Murphy. We hope that these proceedings will serve as a valuable reference for researchers in various fields, including software engineering, databases, and data mining.
A Proxy-Caching Prefix Assignment Algorithm Based on P2P Cooperation in the Media Streaming System
Authors: Rui-chun Tang, Qing-lei Wei, Bin Liu
Venue: Proceedings of the 2009 International Conference on Multimedia Information Networking and Security - Volume 01 (2009)

Consider the lack of cache and serve time-delay in the media streaming system, a Proxy-Caching Scheduler based on P2P Cooperation (PCSPC) is raised. First according to the principle of more popularly data assigned more cache, we distribute corresponding cache to every media file's prefix by its popularity. Then we sort prefix sequence in ascending order and proxy sequence in descending order by transmission cost, this method can reduce transmission cost effectively, which is proved by mathematical method. All above make PCSPC give attention to cache efficiency and transmission cost. Simulations demonstrate the validity of the designed approach.
A simple polynomial approximation to the Gaussian Q-function and its application
Authors: Yunfei Chen, Norman C. Beaulieu
Venue: IEEE Communications Letters (2009)

A simple polynomial approximation to the Gaussian Q-function is proposed, based on the observation that a Gaussian random variable can be well approximated by a sum of uniform random variables. The approximation can be used to obtain accurate explicit approximations to problems that otherwise do not have explicit solutions or approximate explicit solutions. As an example, an explicit expression for the average symbol error rate of M-ary pulse amplitude modulation in lognormal channels is derived using the new approximation, and the approximate symbol error rate is shown to be very close to the exact value.
HERA: Design Framework for Decentralized Distributed Virtual Environments and Games
Authors: Christian Bettinger, Andreas Baumann, Frank Hausen, Georg Schneider, Hermann Schloss
Venue: Proceedings of the 2009 Fifth International Joint Conference on INC, IMS and IDC (2009)

Distributed Virtual Environments such as Massive Multiplayer Online Games or Virtual Worlds have become very popular in the last few years and a more substantial surge in popularity and use is expected. Because of the huge number of users most of these environments have to cope with scalability problems. The change of the basic infrastructure from a centralized client-server to a decentralized peer-to-peer architecture mitigates these problems. However it makes the handling of management and consistency issues more complicated. To address these issues we have developed HERA - a design framework for decentralized distributed virtual environments. In this paper we present HERA's Area of Interest handling as well as its consistency provision and introduce a 2D online game application based on the HERA framework.
Identifying static analysis techniques for finding non-fix hunks in fix revisions
Authors: Yungbum Jung, Hakjoo Oh, Kwangkeun Yi
Venue: Proceeding of the ACM first international workshop on Data-intensive software management and mining (2009)

Mining software repositories for bug detection requires accurate techniques of identifying bug-fix revisions. There have been many researches to find exact bug-fix revisions. However there are still noises, we call these noises non-fix hunks, even in exactly identified bug-fix revisions. Our goal is to remove these non-fix hunks automatically. First we inspected every 50 bug-fix revisions of three open source projects (Eclipse, Lucene, and Columba). Among total 2146 hunks we found 179 non-fix hunks. We classified these non-fix hunks into 11 patterns. For all patterns we enumerate enabling static analysis techniques.
A method of evaluating programs for novice programmers' learning support system
Authors: Masayuki Arai
Venue: Proceedings of the 10th IASTED International Conference on Computers and Advanced Technology in Education (2007)

In this paper we describe a method of evaluating programs based on a system that supports novice programmers to be capable of tracing programs. We consider that novice programmers learn programming through the following processes: first, comprehension of input and output statements, variables, constants, and so forth; second, comprehension of the three important elements of algorithms--that is, sequential execution, selection, and iteration--and becoming capable of tracing the programs using these algorithms; third, becoming capable of writing programs using the three elements of algorithms; fourth, becoming capable of writing programs using the various kinds of algorithms and data structures. We previously developed the system for the second step. In this paper we propose a method of evaluating programs in order to support the third learning step based on the system.
Intelligent Modeling and Predicting Investigation of Sound Velocity of Marine Sediments
Authors: Zhonghui Luo, Bo Lu, Yuzhong Li, Can Liu
Venue: Proceedings of the 2009 Second International Symposium on Knowledge Acquisition and Modeling - Volume 01 (2009)

Physical and mechanical parameters of marine sediment are correlated to sound velocity. At present, there is some deficiency in sound velocity prediction equation with the help of regression fitting method. So it is difficult to obtain sound velocity prediction equation with more than three parameters. This paper applies artificial intelligent method to build a neural network model of multi-parameter sound velocity prediction. The investigation indicates that prediction error of two-parameter-neural-network-model is smaller than the corresponding two-parameter-regression-model, prediction accuracy of which is lower than three-parameter-neural-network-model. This research finding is established as a new way to predict sound velocity of marine sediment.
PWL 1.0 Personal WaveLab: an object-oriented workbench for seismogram analysis on Windows systems
Authors: Andrea Bono, Lucio Badiali
Venue: Computers Geosciences (2005)

Personal WaveLab 1.0 wants to be the starting point for an ex novo development of seismic time-series analysis procedures for Windows-based personal computers. Our objective is two-fold. Firstly, being itself a stand-alone application, it allows to do ''basic'' digital or digitised seismic waveform analysis. Secondly, thanks to its architectural characteristics it can be the basis for the development of more complex and power featured applications. An expanded version of PWL, called SisPick!, is currently in use at the Istituto Nazionale di Geofisica e Vulcanologia (Italian Institute of Geophysics and Volcanology) for real-time monitoring with purposes of Civil Protection. This means that about 90 users tested the application for more than 1 year, making its features more robust and efficient. SisPick! was also employed in the United Nations Nyragongo Project, in Congo, and during the Stromboli emergency in summer of 2002. The main appeals of the application package are: ease of use, object-oriented design, good computational speed, minimal need of disk space and the complete absence of third-party developed components (including ActiveX). Windows environment spares the user scripting or complex interaction with the system. The system is in constant development to answer the needs and suggestions of its users. Microsoft Visual Basic 6 source code, installation package, test data sets and documentation are available at no cost.
Query processing of massive trajectory data based on mapreduce
Authors: Qiang Ma, Bin Yang, Weining Qian, Aoying Zhou
Venue: Proceeding of the first international workshop on Cloud data management (2009)

With the development of positioning technologies and the boosting deployment of inexpensive location-aware sensors, large volumes of trajectory data have emerged. However, efficient and scalable query processing over trajectory data remains a big challenge. We explore a new approach to this target in this paper, presenting a new framework for query processing over trajectory data based on MapReduce. Traditional trajectory data partitioning, indexing, and query processing technologies are extended so that they may fully utilize the highly parallel processing power of large-scale clusters. We also show that the append-only scheme of MapReduce storage model can be a nice base for handling updates of moving objects. Preliminary experiments show that this framework scales well in terms of the size of trajectory data set. It is also discussed the limitation of traditional trajectory data processing techniques and our future research directions.
Multivectors: Nine components represented on a ternary diagram
Authors: John V. Smith, Eberhard Beermann
Venue: Computers Geosciences (2006)

Methods of graphical representation of data need to keep pace with increasingly complex data manipulation. Conventional ternary diagrams allow the presentation of three components as a point in a plane. Multivector diagrams allow plotting of up to nine components in one ternary diagram by representing compositions not as points but as vectors sharing a ''triple-point''. The triple point represents the composition of three sets of three components (triads). The vector arms represent the composition within triads. Multivector diagrams can be used to illustrate individual samples or multiple samples. The techniques for computing, plotting, reading and interpreting multiple vectors follow the same rules as a conventional ternary diagram such that any of the nine components or groups of components can be compared directly or with the aid of simple projections. Although the mathematical and statistical implications of this graphical representation are not presented, it is demonstrated that the technique is useful for visual assessment of compositions and key compositional ratios. Multivector diagrams can be applied to any system where a graphical representation of up to nine components may be useful. Multivectors are applied to examples from whole rock geochemistry, whole rock modal mineralogy, mineral alteration, chemical weathering and groundwater chemistry.
Role of advanced technologies in the competences of vocational professions
Authors: Tamás Köpeczi-Bócz
Venue: Proceedings of the 10th IASTED International Conference on Computers and Advanced Technology in Education (2007)

One of the most interesting scope of the new research trends is to recover the link between the advanced technology and human resource requirements of educational professions. Several accreditation systems, curriculum development methods, teacher evaluation systems are designed to new learning and teaching theories based on advanced technologies. There are a huge misunderstanding at practitioner level that the innovative education and pedagogy is more or less covered by advanced technologies especially ICT tools, WEB supported facilities. The new roles of teachers, instructors, headmasters are ed on new requirement of technological and management changes in the companies, the advanced technologies are helpful tools to fulfil this new requirements, the professionals are ambiguous what is a cause and effect relation in this sense. Some of the conclusions of the presentation are follows: &bull; application of ICT tools in itself is not equal with the application of innovative pedagogies; &bull; the preparedness of teachers with higher competence level of pedagogical knowledge is better for using advanced technologies; &bull; the heads of institutions has not yet recognized the advantages and the opportunities of the channel of communication with stakeholders provided by advanced technologies.
Technical Note: Supply chain diagnostics with dynamic Bayesian networks
Authors: Han-Ying Kao, Chia-Hui Huang, Han-Lin Li
Venue: Computers and Industrial Engineering (2005)

This paper proposes a dynamic Bayesian network to represent the cause-and-effect relationships in an industrial supply chain. Based on the Quick Scan, a systematic data analysis and synthesis methodology developed by Naim, Childerhouse, Disney, and Towill (2002). [A supply chain diagnostic methodlogy: Determing the vector of change. Computers and Industrial Engineering, 43, 135-157], a dynamic Bayesian network is employed as a more descriptive mechanism to model the causal relationships in the supply chain. Dynamic Bayesian networks can be utilized as a knowledge base of the reasoning systems where the diagnostic tasks are conducted. We finally solve this reasoning problem with stochastic simulation. ulation.