ppxscal/embedding_network huggingface dataset:
Can cloud computing reach the top500?
Authors: Jeffrey Napper, Paolo Bientinesi
Venue: Proceedings of the combined workshops on UnConventional high performance computing workshop plus memory access workshop (2009)

Computing as a utility has reached the mainstream. Scientists can now rent time on large commercial clusters through several vendors. The cloud computing model provides flexible support for "pay as you go" systems. In addition to no upfront investment in large clusters or supercomputers, such systems incur no maintenance costs. Furthermore, they can be expanded and reduced on-demand in real-time. Current cloud computing performance falls short of systems specifically designed for scientific applications. Scientific computing needs are quite different from those of web applications--composed primarily of database queries--that have been the focus of cloud computing vendors. In this paper we investigate the use of cloud computing for high-performance numerical applications. In particular, we assume unlimited monetary resources to answer the question, "How high can a cloud computing service get in the TOP500 list?" We show results for the Linpack benchmark on different allocations on Amazon EC2.
Intelligent Browsing for Multimedia Applications
Venue: Proceedings of the 1996 International Conference on Multimedia Computing and Systems (1996)

This paper describes a technique, we term intelligent browsing; the software built upon this technique assists the users in their search through a multimedia database. Searching for an item of interest in a large multimedia database is a complex task even for users who have knowledge about it. An active (intelligent) browser suggests to the user items it estimates to be close to the target of the search. The intelligent part of the active browser consists of a learning module whose object of ``study'' is the profile of the users' search actions. After a target is detected the intelligent browser brings on the screen in a dedicated window the item or items of interest and controls the synchronization of the audio, video, or written components of the item. If confirmed by the user, the dedicated window is transformed in a series of windows allocated to the desired item. The novel aspect of intelligent browsing is that it is entirely unobtrusive: it infers its similarity measure from the user's normal browsing actions, without any special input. Use of the browser on a multimedia application is illustrated in this paper}. 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
Incorporating prior model into Gaussian processes regression for WEDM process modeling
Authors: Jin Yuan, Cheng-Liang Liu, Xuemei Liu, Kesheng Wang, Tao Yu
Venue: Expert Systems with Applications: An International Journal (2009)

Sufficient sampling is usually time-consuming and expensive but also is indispensable for supporting high precise data-driven modeling of wire-cut electrical discharge machining (WEDM) process. Considering the natural way to describe the behavior of a WEDM process by IF-THEN rules drawn from the field experts, engineering knowledge and experimental work, in this paper, the fuzzy logic model is chosen as prior knowledge to leverage the predictive performance. Focusing on the fusion between rough fuzzy system and very scarce noisy samples, a simple but effective re-sampling algorithm based on piecewise relational transfer interpolation is presented and it is integrated with Gaussian processes regression (GPR) for WEDM process modeling. First, by using re-sampling algorithm encoded derivative regularization, the prior model is translated into a pseudo training dataset, and then the dataset is trained by the Gaussian processes. An empirical study on two benchmark datasets intuitively demonstrates the feasibility and effectiveness of this approach. Experiments on high-speed WEDM (DK7725B) are conducted for validation of nonlinear relationship between the design variables (i.e., workpiece thickness, peak current, on-time and off-time) and the responses (i.e., material removal rate and surface roughness). The experimental result shows that combining very rough fuzzy prior model with training examples still significantly improves the predictive performance of WEDM process modeling, even with very limited training dataset. That is, given the generalized prior model, the samples needed by GPR model could be reduced greatly meanwhile keeping precise.
Requirements visualization techniques: a comparative analysis
Authors: Nurul Naslia Khairuddin, Khairuddin Hashim
Venue: Proceedings of the 8th conference on Applied computer scince (2008)

Several requirements visualization techniques have been developed together with tools that support the techniques. This paper focuses on visualization techniques developed for requirements representation. These techniques are used to transform the written and verbal requirements into visual representations. Most of the existing techniques use graphics for visual representation. This paper reviews three requirements graphical visualization techniques; which are the 3D visualization technique, UML models, and behavioural requirements specification approach. These three are later compared using four selected attributes which are ease of use, validation support, comprehensiveness, and ease of conversion to implementation codes.
Performance evaluation of metaheuristic search techniques in the optimum design of real size pin jointed structures
Authors: O. Hasançebi, S. Çarbaş, E. Doğan, F. Erdal, M. P. Saka
Venue: Computers and Structures (2009)

In recent years a number of metaheuristic search techniques have been widely used in developing structural optimization algorithms. Amongst these techniques are genetic algorithms, simulated annealing, evolution strategies, particle swarm optimizer, tabu search, ant colony optimization and harmony search. The primary goal of this paper is to objectively evaluate the performance of abovementioned seven techniques in optimum design of pin jointed structures. First, a verification of the algorithms used to implement the techniques is carried out using a benchmark problem from the literature. Next, the techniques compiled in an unbiased coding platform are evaluated and compared in terms of their solution accuracies as well as convergence rates and reliabilities using four real size design examples formulated according to the design limitations imposed by ASD-AISC (Allowable Stress Design Code of American Institute of Steel Institution). The results reveal that simulated annealing and evolution strategies are the most powerful techniques, and harmony search and simple genetic algorithm methods can be characterized by slow convergence rates and unreliable search performance in large-scale problems.
PB-GPCT: A Platform-Based Configuration Tool
Authors: Huiqiang Yan, Runhua Tan, Kangyun Shi, Fei Lu
Venue: Proceedings of the 2009 International Conference on Computer Engineering and Technology - Volume 01 (2009)

In this paper, the Platform-based generic product configuration tool(PB-GPCT) is presented which is developed by Institute of Design for Innovation, Hebei University of Technology. The PB-GPCT is designed to be used by sales engineers for the configuration of complex products, so that customers can get customized products in tolerable time. Comparing with other configurators, platform is introduced into PB-GPCT. Being a structure-based and domain independent system, the PB-GPCT can be used in different companies without doing any modification. In order to achieve this goal, knowledge-based configuration methods are employed. The configuration model, Configuration knowledge and configuration constraints are discussed in this paper.
Deployment Issues in Scalable Island Multicast for Peer-to-Peer Streaming
Authors: Xing Jin, Ho-Shing Tang, S. -H. Gary Chan, Kan-Leung Cheng
Venue: IEEE MultiMedia (2009)

The Scalable Island Multicast protocol integrates Internet Protocol multicast and overlay delivery for media streaming.
Navidget for 3D interaction: Camera positioning and further uses
Authors: Martin Hachet, Fabrice Decle, Sebastian Knödel, Pascal Guitton
Venue: International Journal of Human-Computer Studies (2009)

This paper presents an extended version of Navidget. Navidget is a new interaction technique for camera positioning in 3D environments. This technique derives from the point-of-interest (POI) approaches where the endpoint of a trajectory is selected for smooth camera motions. Unlike the existing POI techniques, Navidget does not attempt to automatically estimate where and how the user wants to move. Instead, it provides good feedback and control for fast and easy interactive camera positioning. Navidget can also be useful for distant inspection when used with a preview window. This new 3D user interface is totally based on 2D inputs. As a result, it is appropriate for a wide variety of visualization systems, from small handheld devices to large interactive displays. A user study on TabletPC shows that the usability of Navidget is very good for both expert and novice users. This new technique is more appropriate than the conventional 3D viewer interfaces in numerous 3D camera positioning tasks. Apart from these tasks, the Navidget approach can be useful for further purposes such as collaborative work and animation.
A New Fixed-Priority Scheduling Algorithm with (m,k)-Firm Guarantee
Authors: Ming Zhao, Hai Zhao
Venue: Proceedings of the 2009 International Conference on Electronic Computer Technology (2009)

Weakly hard real-time application requires that scheduling algorithm should provide service satisfied QoS parameter, so a new fixed-priority scheduling algorithm with (m,k)-firm guarantee is presented. It assigns scheduling priority of task based on period and QoS parameter, and the task is switched between preemptive state and optional state to reflect its pressure. Schedulability test inequation of the algorithm is presented in the paper. The validity and the flexibility of the algorithm are proved through the analysis of classical task sets.
Edge-Based Image Segmentation with MOVels
Authors: Giancarlo Iannizzotto, Lorenzo Vita
Venue: Proceedings of the IEEE International Conference on Multimedia Computing and Systems - Volume 2 (1999)

We present a new tecnique for edge-based segmentation, which is fast and accurate even in presence of nested contours. The shape characteristics of the contours are perfectly recovered, with no smoothing, and only closed contours are returned; this leads to a well- defined segmentation of the images. The algorithm is easily parallelizable, and is well-suitable for specialized, real-time hardware. Experimental results are presented, in comparison with the Canny algorithm.
A distributed simulation framework supporting CGF on networked virtual environment
Authors: SeongKee Lee, ChanGon Yoo, JungChan Park, JaeHyun Park
Venue: Proceedings of the 8th conference on Applied informatics and communications (2008)

This paper shows a distributed simulation framework for tactical training in networked virtual environment. The existing military training simulation systems are mostly full simulated systems operating on single platform. They are to train individual's operation skill, but don't support team level tactical training. In order to train team level combat and command skill in dynamic battlefield, the interaction among distributed combat objects and diverse battlefield composition are required. This paper designs a distributed simulation framework to satisfy these requirements. The framework produces the networked virtual environment using virtual reality, event based simulation and HLA/RTI based interoperation techniques. This paper implements a small scale tactical training system based on the framework.
Frequency Offset Estimation with Improved Estimation Range in UWB-OFDM Systems
Authors: Young-Hwan You, Byoung-Heon Lee, Jae-Hoon Yi, Hyoung-Kyu Song
Venue: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences (2008)

In this letter, we address a carrier frequency offset (CFO) estimator with a large estimation range for ultra-wideband multi-band orthogonal frequency division multiplexing (UWB MB-OFDM) systems. We find by simulations that the proposed CFO estimator yields an improved estimation range, maintaining the same estimation performance and complexity in comparison with the conventional estimator.
Highly birefringent all-solid photonic bandgap fiber with an array of oriented rectangular high index rods
Authors: Qing Shi, Yiming Zhong, Zhi Wang, Yange Liu, Guiyun Kai, Fuyun Lv
Venue: Proceedings of the 2008 International Conference on Advanced Infocomm Technology (2008)

In this paper, we propose a highly birefringent all-solid photonic bandgap fiber with an array of oriented rectangular high index rods. The high phase birefringence of the order of 10-3 and high group birefringence of the order of 10-2 are easily achievable in the fiber design. Using the finite element method, we investigate the birefringence property of such fibers considering different values of the cladding rod's aspect ratio and the cladding microstructure's lattice ratio.
Physics-based froth modelling: new developments and applications
Authors: Jan Cilliers
Venue: International Journal of Computational Fluid Dynamics (2009)

This article describes the use of a flotation froth model based on foam physics. The model is briefly described by introducing the structure of froths and the equations that govern foam motion and liquid drainage. The methodology of combining the physical models for each phase into a complete description is reviewed. A boundary condition unique to froths, surface bursting, is detailed and its behaviour shown. The article does not dwell on the model itself, focussing instead on illustrating the utility of this physics-based froth modelling approach to optimising industrial flotation. This is illustrated with examples of improved understanding and operation. First, the liquid flow equations are solved explicitly, giving a clear interpretation of process variables and their importance on flotation behaviour. Second, an industrial example of the use of the model for improved air addition management is shown. This approach to froth modelling captures very closely the behaviour of flotation behaviour, and can be used for process optimisation. The most significant challenges that remain are discussed; most notably, understanding and incorporating the rates of bubble coalescence in the froth and bursting on the surface.
Study of the Optimal Location and Size of Piezoelectric Actuator in Smart Structures
Authors: Jingjun Zhang, Weize Yuan, Liya Cao, Ruizhen Gao
Venue: Proceedings of the 2009 International Asia Conference on Informatics in Control, Automation and Robotics (2009)

Study on the problems of obtaining both the optimal location and size of piezoelectric actuators in the smart structure. In this paper, the model of a piezoelectric smart structure is built by the application of ANSYS software, extracts the required modes according to the method of model reduction based on the truncation criterion of modal cost, then, both the optimal location and the size of piezoelectric actuators can be ascertained by these extracted modes. Finally, the paper takes a piezoelectric smart simply supported beam affixed with sensors and actuators as an example and gives the impulse response curve of the system. The results show the effectiveness of this method.
A Faster Shortest-Paths Algorithm for Minor-Closed Graph Classes
Authors: Siamak Tazari, Matthias Müller-Hannemann
Venue: Graph-Theoretic Concepts in Computer Science: 34th International Workshop, WG 2008, Durham, UK, June 30 --- July 2, 2008. Revised Papers (2008)

We generalize the linear-time shortest-paths algorithm for planar graphs with nonnegative edge-weights of Henzinger et al. (1994) to work for any proper minor-closed class of graphs. We argue that their algorithm can not be adapted by standard methods to all proper minor-closed classes. By using recent deep results in graph minor theory, we show how to construct an appropriate recursive division in linear time for any graph excluding a fixed minor and how to transform the graph and its division afterwards, so that it has maximum degree three. Based on such a division, the original framework of Henzinger et al. can be applied. Afterwards, we show that using this algorithm, one can implement Mehlhorn's (1988) 2-approximation algorithm for the Steiner tree problem in linear time on these graph classes.
An Industrial Augmented Reality Solution For Discrepancy Check
Authors: Pierre Georgel, Pierre Schroeder, Selim Benhimane, Stefan Hinterstoisser, Mirko Appel, Nassir Navab
Venue: Proceedings of the 2007 6th IEEE and ACM International Symposium on Mixed and Augmented Reality (2007)

Construction companies employ CAD software during the planning phase, but what is finally built often does not match the original plan. The procedure of validating the model is called "discrepancy check". The system proposed here allows the user to easily obtain an augmentation in order to find differences between the planned 3D model and the built items. The main difference to previous body of work in this field is the emphasis on usability and acceptance of the solution. While standard image-based solutions use markers or rely on a "perfect" 3D model to find the pose of the camera, our software uses Anchor-Plates. Anchor-Plates are rectangular structures installed on walls and ceiling in the majority of industrial edifices. We are using them as landmarks because they are the most reliable components often used as reference coordinates by constructors. Furthermore, for real industrial applications, they are the most suitable solutions in terms of general applicability. Unfortunately, they have not been designed with Computer Vision applications in mind. On the contrary, they are often made or painted in such way that they are not easily popping out. They are therefore difficult targets to segment and to track. This paper proposes a solution to extract and match them to their 3D counterparts. We created a software that uses the detected structures for pose estimation and image augmentation. The software has been successfully employed to find discrepancies in several rooms of two industrial plants.
Opportunities presented when developing learning resources for middle schoolers
Authors: Youwen Ouyang, Matthew Lehmann, Katherine Hayden, Debi Kilb
Venue: Journal of Computing Sciences in Colleges (2009)

The CyberTEAM project engages Computer Science (CS) students in the creation of Web-based applications as learning resources for middle school classrooms. The Flash-based Earthquake Location Tool (FELT) is one of such learning resources. Implemented in ActionScript 3.0, FELT allows its client to run on Flash Player and perform computations, interact with Google Maps API, load data, images and audios asynchronously, and redraw sections of the screen, all independently of the server with which it is connected. Using FELT as an example, this paper describes how the CyberTEAM project provides meaningful real-world software development experiences for CS students.
Sensornet Checkpointing: Enabling Repeatability in Testbeds and Realism in Simulations
Authors: Fredrik Österlind, Adam Dunkels, Thiemo Voigt, Nicolas Tsiftes, Joakim Eriksson, Niclas Finne
Venue: Proceedings of the 6th European Conference on Wireless Sensor Networks (2009)

When developing sensor network applications, the shift from simulation to testbed causes application failures, resulting in additional time-consuming iterations between simulation and testbed. We propose transferring sensor network checkpoints between simulation and testbed to reduce the gap between simulation and testbed. Sensornet checkpointing combines the best of both simulation and testbeds: the non-intrusiveness and repeatability of simulation, and the realism of testbeds.
A Study on the Performance of Substitute Distance Based Approaches for Evolutionary Many Objective Optimization
Authors: Hemant K. Singh, Amitay Isaacs, Tapabrata Ray, Warren Smith
Venue: Proceedings of the 7th International Conference on Simulated Evolution and Learning (2008)

Non-dominated Sorting Genetic Algorithm (NSGA-II) [1] and the Strength Pareto Evolutionary Algorithm (SPEA2) [2] are the two most widely used evolutionary multi-objective optimization algorithms. Although, they have been quite successful so far in solving a wide variety of real life optimization problems mostly 2 or 3 objective in nature, their performance is known to deteriorate significantly with an increasing number of objectives. The term many objective optimization refers to problems with number of objectives significantly larger than two or three. In this paper, we provide an overview of the challenges involved in solving many objective optimization problems and provide an in depth study on the performance of recently proposed substitute distance based approaches, viz. Subvector dominance, -eps-dominance, Fuzzy Pareto Dominance and Sub-objective dominance count for NSGA-II to deal with many objective optimization problems. The present study has been conducted on scalable benchmark functions (DTLZ2-DTLZ3) and the recently proposed P* problem [3] since their convergence and diversity measures can be compared conveniently. An alternative substitute distance approach is introduced in this paper and compared with existing ones on the set of benchmark problems.
Efficient E-Procurement with SAP
Authors: Eduard Gerhardt and Kai Krueger
Venue:  (2008)

This book teaches you how to optimize procurement within your organization using e-procurement with SAP. You'll find in-depth information on both the business requirements of procurement, and an explanation of how to implement them in the SAP system. You'll also learn which SAP tool is appropriate for each purchasing area. The hands-on, solution approach used throughout the book makes this a must-have resource for anyone interested in learning how to use and configure e-procurement. 1 Procurement Requirements Learn what procurement tasks exist, what compliance requirements are tied to, and an explanation of the legal basis and processes for procurement. 2 Procurement with SAP Explore the pros and cons of procurement with SAP Financial Accounting (FI), SAP Materials Management (MM), and e-procurement with SAP. 3 Procurement with SAP SRM Get an in-depth look at efficient e-procurement: from product catalog, integration, and roles, to strategic procurement management and functional procurement. 4 Procurement Controlling Find out what is important for effective procurement controlling, from standard reporting to individual reporting and SAP NetWeaver BI. 5 Processes and Transactions Overview Discover an overview of all procurement processes, along with a list of the transactions in the SAP system. Highlights include: Procurement fundamentals Factors that influence the procurement organization Procurement with SAP E-Procurement in SAP SRM Reporting
Inductive Negotiation in Answer Set Programming
Authors: Chiaki Sakama
Venue: Declarative Agent Languages and Technologies VI: 6th International Workshop, DALT 2008, Estoril, Portugal, May 12, 2008, Revised Selected and Invited Papers (2008)

This paper provides a logical framework of negotiating agents who have capabilities of evaluating and building proposals. Given a proposal, an agent decides whether it is acceptable or not. If the proposal is unacceptable as it is, the agent seeks conditions to accept it. This attitude is captured as a process of making hypotheses by induction. If an agent fails to find a hypothesis, it would concede by giving up some of its current belief. This attitude is characterized using default reasoning. We provide a logical framework of such think-act cycle of an agent, and develop a method for computing proposals using answer set programming.