ppxscal/embedding_network huggingface dataset:
Computer Jobs with the Growing Information Technology Professional Services Sector [2007] U.S. IT Staffing Firms: Companies-Contacts-Links - United States
Authors: Info Tech Employment
Venue:  (2007)

"U.S. IT Staffing Firms" gives detailed information on connecting with this specialized hiring sector for tech jobs. Job seekers, professionals, and would-be professionals will be glad to have "U.S. IT Staffing Firms" around. Along with the "U.S. IT Services Firms" books" by Info Tech Employment, these books tell the professional and would-be professional where the jobs are in the U.S. and who is hiring for them. The solid and growing information technology professional services sector continues to increase headcount. Discover computer jobs in this robust sector of the industry. "U.S. IT Staffing Firms" provides company names and addresses, telephone numbers, recruiter-placement contact names, emails and website addresses for over 2300 IT Staffing Firms covering the 50 U.S. States. Readers can network with recruiter contacts easily. The data is accurate and concise. In the "Articles" section, 21 Advisory and Analytical articles discuss leading IT jobs, skill sets, positioning tools, job classifications and pay scales. Analytical Articles: C++ Computer . Java and JavaScript . Visual Basic . Sun Solaris, Unix, Linux, Network Tech Jobs . Oracle, SQL, FoxPro, Sybase, Database Management . Software Programmer; Software Engineer . Network Programmer, Network Systems . Telecommunications . Web Developer . IT Procurement, IT Training, Project Management . IT Security . Computer Graphics, Computer Animation. Advisory Articles: Careers in IT . Hiring Options: IT Outsourcers, IT Service Providers, In-House IT Staff. Telecommuting IT Careers, Entry-Level Tech Jobs . Resumes . Skills Employers Require of IT Professionals; Training Opportunities, Building a Successful Computer Career. Thie edition gives sure-fire direction to good employment in all 50 U.S. States.
Changes in the microstructure of materials and their impact on reliability: experiments and modeling
Authors: Andreas Brandmair, Thomas B&#x00f6;hme, Wolfgang H. M&#x00fc;ller
Venue: Microsystem Technologies (2008)

Several types of microstructural changes in microelectronic solder materials are briefly discussed, namely the formation of intermetallics, Kirkendall voiding, spinodal decomposition, and coarsening. Moreover, a theoretical framework, based on the entropy principle, is developed by means of which constitutive equations can be derived that are necessary to understand and simulate such processes. The resulting equations are specialized to binary alloys and then investigated numerically. Finally, simulations of spinodal decomposition and coarsening are performed for the eutectic solder AgCu. The theoretical predictions are compared with experiments.
Solving large scale optimization problems by opposition-based differential evolution (ODE)
Authors: Shahryar Rahnamayan, G. Gary Wang
Venue: WSEAS Transactions on Computers (2008)

This work investigates the performance of Differential Evolution (DE) and its opposition-based version (ODE) on large scale optimization problems. Opposition-based differential evolution (ODE) has been proposed based on DE; it employs opposition-based population initialization and generation jumping to accelerate convergence speed. ODE shows promising results in terms of convergence rate, robustness, and solution accuracy. A recently proposed seven-function benchmark test suite for the CEC-2008 special session and competition on large scale global optimization has been utilized for the current investigation. Results interestingly confirm that ODE outperforms its parent algorithm (DE) on all high dimensional (500D and 1000D) benchmark functions (F1-F7). Furthermore, authors recommend to utilize ODE for more complex search spaces as well. Because results confirm that ODE performs much better than DE when the dimensionality of the problems is increased from 500D to 1000D. All required details about the testing platform, comparison methodology, and also achieved results are provided.
Testing Forecast Accuracy of Foreign Exchange Rates: Predictions from Feed Forward and Various Recurrent Neural Network Architectures
Authors: Khurshid M. Kiani, Terry L. Kastens
Venue: Computational Economics (2008)

In this research, we work with data of futures contracts on foreign exchange rates for British pound (BP), Canadian dollar (CD), and Japanese yen (JY) that are traded at the Chicago Mercantile Exchange (CME) against US dollars. We model relationships between exchange rates in these currencies using linear models, feed forward artificial neural networks (ANN), and three versions of recurrent neural networks (RNN1, RNN2 and RNN3) for predicting exchange rates in these currencies against the US dollar. Our results on forecast evaluations based on AGS test the tests of forecast equivalence between any two competing models among the entire models employed for each of the series show that ANN and the three versions of RNN models offer superior forecasts for predicting BP, CD and JY exchange rates although the forecast evaluations based on MGN test are in sharp contrast. On the other hand forecast based on SIGN test shows that ANN and all the versions of RNN models offer superior forecasts for BP and CD in exception of JY exchange rates. The results for forecast evaluation for all the models for each of the series based on summary measures of forecast evaluations show that RNN3 model appears to offer the most accurate predictions of BP and RNN1 for JP exchange rates. However, none of the RNN models appear to be statistically superior to the benchmark (i.e., linear model) for predicting CD exchange rates.
New algorithms for QoS performance improvement in high speed networks
Authors: Radu Dobrescu, Daniela Hossu, Stefan Mocanu, Maximilian Nicolae
Venue: WSEAS TRANSACTIONS on COMMUNICATIONS (2008)

In this paper is addressed the issue how to provide QoS control and improve performance in high speed Optical Burst Switching (OBS) networks. In order to provide better proportional differentiated services are proposed new algorithms: a burst assembly algorithm (named adaptive timer-based) with traffic shaping functions and a Delayed Burst Assignment (DBA) scheme, both able to reduce the variance of assembled traffic and to improve the burst loss performance. A precise analytical model to study the performance of the assembled traffic in high speed networks is also presented. The simulation results show that the proposed algorithms have better performance in terms of edge buffering delay and can lighten burst loss ratio for TCP flows of the OBS network.
Memory-efficient dynamic programming backtrace and pairwise local sequence alignment
Authors: Lee A. Newberg
Venue: Bioinformatics (2008)

Motivation: A backtrace through a dynamic programming algorithm's intermediate results in search of an optimal path, or to sample paths according to an implied probability distribution, or as the second stage of a forward–backward algorithm, is a task of fundamental importance in computational biology. When there is insuf.cient space to store all intermediate results in high-speed memory (e.g. cache) existing approaches store selected stages of the computation, and recompute missing values from these checkpoints on an as-needed basis. Results: Here we present an optimal checkpointing strategy, and demonstrate its utility with pairwise local sequence alignment of sequences of length 10 000. Availability: Sample C++-code for optimal backtrace is available in the Supplementary Materials. Contact: leen@cs.rpi.edu Supplementary information:Supplementary data is available at Bioinformatics online.
Optical buffering in stationary structures
Authors: E. P. Belan
Venue: Cybernetics and Systems Analysis (2008)

The local dynamics of a nonlinear parabolic equation on a circle with a shifted spatial argument and a small diffusion is studied. It is proved that the interaction of stationary structures satisfies the 1:3 principle. The number of stable stationary structures increases as the diffusion coefficient tends to zero.
Twofold adaptive partition of unity implicits
Authors: J. P. Gois, V. Polizelli-Junior, T. Etiene, E. Tejada, A. Castelo, L. G. Nonato, T. Ertl
Venue: The Visual Computer: International Journal of Computer Graphics (2008)

Partition of Unity Implicits (PUI) has been recently introduced for surface reconstruction from point clouds. In this work, we propose a PUI method that employs a set of well-observed solutions in order to produce geometrically pleasant results without requiring time consuming or mathematically overloaded computations. One feature of our technique is the use of multivariate orthogonal polynomials in the least-squares approximation, which allows the recursive refinement of the local fittings in terms of the degree of the polynomial. However, since the use of high-order approximations based only on the number of available points is not reliable, we introduce the concept of coverage domain. In addition, the method relies on the use of an algebraically defined triangulation to handle two important tasks in PUI: the spatial decomposition and an adaptive polygonization. As the spatial subdivision is based on tetrahedra, the generated mesh may present poorly-shaped triangles that are improved in this work by means a specific vertex displacement technique. Furthermore, we also address sharp features and raw data treatment. A further contribution is based on the PUI locality property that leads to an intuitive scheme for improving or repairing the surface by means of editing local functions.
Using Explicit Control Processes in Distributed Workflows to Gather Provenance
Authors: Sérgio Manuel Cruz, Fernando Seabra Chirigati, Rafael Dahis, Maria Luiza Campos, Marta Mattoso
Venue: Provenance and Annotation of Data and Processes: Second International Provenance and Annotation Workshop, IPAW 2008, Salt Lake City, UT, USA, June 17-18, 2008. Revised Selected Papers (2008)

Distributing workflow tasks among high performance environments involves local processing and remote execution on clusters and grids. This dis-tribution often needs interoperation between heterogeneous workflow definition languages and their corresponding execution machines. A centralized Workflow Management System (WfMS) can be locally controlling the execution of a workflow that needs a grid WfMS to execute a sub-workflow that requires high performance. Workflow specification languages often provide different control-flow execution structures. Moving from one environment to another requires mappings between these languages. Due to heterogeneity, control-flow structures, available in one system, may not be supported in another. In these heterogeneous distributed environments, provenance gathering becomes also heterogeneous. This work presents control-flow modules that aim to be independent from WfMS. By inserting these control-flow modules on the workflow specification, the workflow execution control becomes less dependent of heterogeneous workflow execution engines. In addition, they can be used to gather provenance data both from local and remote execution, thus allowing the same provenance registration on both environments independent of the heterogeneous WfMS. The proposed modules extend the ordinary workflow tasks by providing dynamic behavioral execution control. They were implemented in the VisTrails graphical workflow enactment engine, which offers a flexible infrastructure for provenance gathering.
Build, Upgrade, and Repair Your Computer, Revised edition
Authors: Mike Harris
Venue:  (2007)

Computer experts Mike and Tony Harris present the updated third edition of the book that has helped scores of regular people with no advanced computer skills design and build their own computer systems. They demonstrate that if you can operate a Phillips-head screwdriver and follow instructions, you can build the most complicated PC -- a simple assertion that could revolutionize the way people look at computers. Building instead of buying will save you hundreds -- perhaps thousands -- of dollars. Plus, the experience will enable you to repair your PC and successfully upgrade it to keep it current, which will save you even more money. This book uses photos and easy-to-understand instructions to show that regardless which processor or system speed you choose, the actual assembly is exactly the same. The only variables are the number and configuration of optional add-on components. The authors guide you through the process of determining what kind of computer you want, purchasing and successfully assembling the hardware, and installing the software. When you finish, you will have the right system and hundreds of extra dollars in your pocket. This book also covers upgrades for improved performance on older machines in easy-to-read language, plus tips and basic troubleshooting techniques used by experts to repair and tune up computers and peripherals. This is truly a how-to book for the computer age.
Data exchange with data-metadata translations
Authors: Mauricio A. Hernández, Paolo Papotti, Wang-Chiew Tan
Venue: Proceedings of the VLDB Endowment (2008)

Data exchange is the process of converting an instance of one schema into an instance of a different schema according to a given specification. Recent data exchange systems have largely dealt with the case where the schemas are given a priori and transformations can only migrate data from the first schema to an instance of the second schema. In particular, the ability to perform data-metadata translations, transformation in which data is converted into metadata or metadata is converted into data, is largely ignored. This paper provides a systematic study of the data exchange problem with data-metadata translation capabilities. We describe the problem, our solution, implementation and experiments. Our solution is a principled and systematic extension of the existing data exchange framework; all the way from the constructs required in the visual interface to specify data-metadata correspondences, which naturally extend the traditional value correspondences, to constructs required for the mapping language to specify data-metadata translations, and algorithms required for generating mappings and queries that perform the exchange.
Auction Analysis by Normal Form Game Approximation
Authors: Michael Kaisers, Karl Tuyls, Frank Thuijsman, Simon Parsons
Venue: Proceedings of the 2008 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Volume 02 (2008)

Auctions are pervasive in today’s society and provide a variety of real markets. This article facilitates a strategic choice between a set of available trading strategies by introducing a methodology to approximate heuristic payoff tables by normal form games. An example from the auction domain is transformed by this means and an evolutionary game theory analysis is applied subsequently. The information loss in the normal form approximation is shown to be reasonably small such that the concise normal form representation can be leveraged in order to make strategic decisions in auctions. In particular, a mix of trading strategies that guarantees a certain profit is computed and further applications are indicated.
Linked Topic and Interest Model for Web Forums
Authors: Victor Cheng, C. H. Li
Venue: Proceedings of the 2008 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Volume 01 (2008)

In web forum analysis, both the discussion topics and author interests are greatly concerned. We introduce a linked topic and interest model based on Latent Dirichlet Allocation (LDA) to explore discussion topics and author interests. Rather than having two separate models or modeling combined topics and interests with just one hidden topic assignment variable, the proposed model has separate but linked hidden variables for topic and interest exploration. As exact model parameter inference is intractable, Gibbs sampling is employed to estimate topic, author, and interest distributions. The joint distribution of the linked hidden variables also provides an interpretation of an interest in terms of weighted topics or vice versa. We apply the model to a NIPS data set and a corpus containing text contents of a popular digital camera web forum. Topics and interests discovered by using the model is demonstrated. The model generalization capability is also assessed by means of perplexity and the results show that the linked topic and interest model has performance exceeding that of LDA document topic model and author topic model.
Evaluating video streaming over UWB wireless networks
Authors: Rukhsana Ruby, Yangyang Liu, Jianping Pan
Venue: Proceedings of the 4th ACM workshop on Wireless multimedia networking and performance modeling (2008)

Video streaming is going to drive the Internet to a new height. However, how to distribute the high-quality video streams that are already delivered to the doorsteps of ordinary customers to almost all rooms in their dwellings still remains a technique challenge. There are various proposals for wired, ``no-new-wires" or wireless approaches, but their performance in real environment is yet to be examined. In this paper, we evaluate the performance of high-quality video streaming over short-range wireless networks, specifically Ultra-Wide Band (UWB), for a two-tiered broadband home network. Our analysis and experiment results reveal the unique features of UWB reservation schemes and their intrinsic throughput-latency tradeoffs, which indicates the efficacy of UWB for high-speed, in-room wireless access with both quality and mobility provisioning.
Some notes on the zeros of power orthogonal polynomials
Authors: Ying Guang Shi
Venue: Journal of Approximation Theory (2008)

In this note some estimates of the largest zeros of power orthogonal polynomials are given and some relations involving the largest zeros of orthogonal polynomials, including the Turan inequality, are also established.
Effects of Autonomy, Traffic Conditions and Driver Personality Traits on Attitudes and Trust towards In-Vehicle Agents
Authors: Henriette Cramer, Vanessa Evers, Nicander Kemper, Bob Wielinga
Venue: Proceedings of the 2008 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Volume 03 (2008)

In-vehicle agents can potentially avert dangerous driving situations by adapting to the driver, context and traffic conditions. However, perceptions of system autonomy, the way agents offer assistance, driving contexts and users’ personality traits can all affect acceptance and trust. This paper reports on a survey-based experiment (N=100) that further investigates how these factors affect attitudes. The 2x2, between-subject, video-based design varied driving context (high, low density traffic) and type of agent (providing information, providing instructions). Both type of agent and traffic context affected attitudes towards the agent, with attitudes being most positive towards the instructive agent in a light traffic context. Participants scoring high on locus of control reported a higher intent to follow-up on the agent's instructions. Driving-related anxiety and aggression increased perceived urgency of the video scenario.
A Novel Approach to 2-D Shape Representation Based on Equilateral Polygonal Approximation
Authors: Wenjun Tan, Shuying Zhao, Chengdong Wu, Changwei Li
Venue: Proceedings of the 2008 International Conference on Computer Science and Software Engineering - Volume 01 (2008)

Shape representation is a very important issue in computer vision and pattern recognition. This paper presents a novel shape representation algorithm based on equilateral polygonal approximation. Firstly, the problem and definition of equilateral polygonal approximation are presented in this paper. Then a new equilateral polygonal approximation method based on detecting optimal edge length using genetic algorithm is proposed.
Constructing the multi-agents communication model to implement dynamic intelligent system
Authors: Steven K. C. Lo, Jen-Chih Lin, Huan-Chao Keh, Yi-Hung Lin, Wan-Chih Wang
Venue: WSEAS TRANSACTIONS on COMMUNICATIONS (2008)

The intelligent agent communication mechanism is designed to execute under background when the application drives an event trigger and the telephony technologies have been rapidly grown up and provide the multi-functions and good interactive user graphic interface (GUI). The hardware of cellular phone device also provides the light, small size with wide screen, more convenient, stable, flexible and available to easy obtain the information from internet world wide web (WWW). According to magazine reporting, most of people have an above 2G cellular phone at least in Taiwan and use the multi-function to retrieve data from internet. In this paper, it is implemented the intelligent communication agent [3, 6, 8, 12] mechanism characterizes and integrated the RFID mechanism to establish a communication channel to automatically transmit data packets from source site to destination site. Using the RFID mechanism to obtain the data from tags through the reader/interrogator is the RFID agent primary task.
Proceedings of the 2008 ACM annual international conference on SIGAda annual international conference
Venue: Annual International Conference on Ada (2008)

Welcome to the 2008 Annual International Conference of ACM's Special Interest Group on Ada (SIGAda), being held in Portland, Oregon, USA. We offer you a conference featuring a top-quality technical program focused on important strengths of Ada: distributed, real-time, and embedded systems. The visions of these systems reflected in Ada's original requirements in the 1970s have expanded in almost unimaginable ways with Ada 95 and Ada 2005 implementations, and continue to be objects of envy by those in the programming language community who understand what the strengths of a language bring to implementers in terms of efficiency, reliability, and effectiveness. Software challenges remain dominant in these domains with rapid hardware advances. Most other languages fail to meet the needs identified as far back as the 1978 Steelman, being able at best to do only 3/4 of the needed functions while Ada performs over 95%. Ada's track record of reliability, efficiency, robustness and all-around success is unparalleled at solving real-time and/or distributed system challenges. Ada is used in space/satellite systems, most modern jetliner avionics, high-speed ground transportation systems, and battle automation systems. As such, it is an important part of the world's economies and defenses. Three days of technical papers, keynotes, and invited presentations report how these successes are achieved and where remaining issues are leading. We are fortunate to have leaders in the software engineering community to provide keynote addresses to set the tone for our conference. Beyond the formal conference of selected papers and presentations, SIGAda 2008 also offers workshops and tutorials with the same duality of on-theme and complementary topics. SIGAda's tutorials provide full-day or half-days on selected topics to enhance one's professional development. SIGAda's workshops allow those working the same issues to share with each other and leverage everyone's accomplishments; workshop products are "delivered" to the community. The broad offerings of career-enhancing tutorials include basic Ada 2005 introductions for software engineers new to Ada, intermediate and advanced Ada topics for practitioners striving to expand their Ada expertise, and several language-independent technology topics. These topics are often coupled with Ada technology because only Ada's full and complete definition allows one to indicate what is expected, and to show that it can be achieved. Finally, SIGAda 2008 provides an outstanding opportunity for rewarding affiliation with colleagues in industry, academia, and government - discussions "in the hall," informal meal-time meetings, and even during the more relaxed moments we make for socializing in this wonderful southern city.