ppxscal/embedding_network huggingface dataset:
Social Enterprise Architecture: Towards an Extendable and Scaleable System Architecture for KM
Authors: Flavio Corradini, Alberto Polzonetti, Romeo Pruno, Roberto D'Angelo
Venue: Proceedings of the 17th International Conference on Database and Expert Systems Applications (2006)

Internet should be used to reduce distances and bring people virtually closer. Using ICT, many people has overcome the problem of digital divided [1] thanks to support of information system technologies, (e.g. email, wiky, community, web-log, video streaming). Nowadays the communications between people using ICT hasn't a structure able to implement a rich and efficient use of information such as datum. Most of the knowledge management systems for complex organizations are based on technological architectures that are in contradiction with the social processes of information like human language. In particular, centralized architectures are adopted for to manage a process that is intrinsically distributed, such "experience". In this paper, we introduce the concept of SEA, an example of (DKM) Distribute knowledge Management [2] architecture as example of an extendable and scaleable system architecture for knowledge management.
Project risk simulation under uncertain construction duration
Authors: Kun-Jung Hsu
Venue: Proceedings of the 36th conference on Winter simulation (2004)

This paper establishes a two-phase model to explore the financial risk of construction project under uncertain construction duration. Treated as a random variable in the model, the construction duration affects the random present worth of cash flow in both construction and operation phases. An illustration of BOT project under uncertain construction duration was utilized for simulation. The simulation result was applied to reveal how uncertain construction duration affects project risk. The paper also shows how the standard deviation of the NPV increases whenever the variance of construction duration rises, thus accentuating the contingency of the project. The results' analysis extended to the discussion of its effect on the probability of negative NPV and its theoretical meanings.
Approximation on Banach spaces of functions on the sphere
Authors: Z. Ditzian
Venue: Journal of Approximation Theory (2006)

Many approximation results were proved on Lp (Sd-1), 1 ≤ p ≤ ∞ where Sd-1 is the unit sphere in Rd. We will show here that most of these results extend to Banach spaces on the sphere for which operation by a d × d orthogonal matrix is a continuous isometry.
Space-Sampling Method for 3D Cinemas
Authors: Takanori Senoh, Terumasa Aoki, Hiroshi Yasuda, Takuyo Kogure
Venue: Proceedings of the 2006 Conference on Computer Vision and Pattern Recognition Workshop (2006)

A new approach to 3D Cinematography based on Space-Sampling method is presented. This method treats a projected 3D image space instead of a linear 3D space. It well matches with the visual perception and nicely reduces the data size needed for 3D scenes. It also matches with the 3D camera-shooting and the 3D displays requiring no eyewear. Space-Sampling method captures 3D natural scenes through a lens with transparent image-sensor layers. Hence, the 3D image space is directly sampled at a video-rate with single camera. Captured images are rendered on a transparent multi-layer display. Thus, a truly volumetric image is observed without eyeglasses. Combination rendering of these natural scenes with 3D computer-graphic (CG) objects creates a realistic Synthesized & Natural Hybrid scene at a reasonable cost. Depth from Focus technology and Depth-Fuse anti-aliasing technology were used to eliminate the blurred objects and to enhance the depth resolution, respectively.
The open and autonomous interconnection semantics
Authors: Hai Zhuge
Venue: Proceedings of the 8th international conference on Electronic commerce: The new e-commerce: innovations for conquering current barriers, obstacles and limitations to conducting successful business on the internet (2006)

Semantics is the meaning expressed by various languages and the study of meaning. Human society co-evolves with diverse semantic spaces holding commonsense, culture, and knowledge of sciences and technologies. By surveying the origin and development of general semantics, this paper studies the semantics of future interconnection environment, proposes a new notion of open and autonomous interconnection semantics, explores relevant principles and rules, and demonstrates a cultural application.
Modeling the progression and treatment of HIV
Authors: Steven M. Shechter, Andrew J. Schaefer, R. Scott Braithwaite, Mark S. Roberts
Venue: Proceedings of the 36th conference on Winter simulation (2004)

Current treatment of HIV patients is based on various guidelines that have changed with the advent of newer antiretroviral therapies and the emergence of resistance to them. However, there remains uncertainty over the best time to initiate HIV therapy or when to switch. Observational cohort studies or clinical trials are limited in the number of scenarios they can examine, whereas simulation modeling is well suited for considering various treatment policies. We describe a Monte Carlo simulation of a cohort of HIV positive patients that explicitly models two key components of HIV progression: adherence and the acquisition of resistance. Simulation results closely match cohort statistics such as survival time and length of time on the first three treatment regimens. We also describe sensitivity analyses and experiments such as testing the effects of starting therapy at different levels.
Optimised source and channel coding for video transmission over ADSL
Authors: N. Franchi, M. Fumagalli, R. Lancini
Venue: Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 1 (2003)

In this paper we tackle the problem of video transmission over ADSL channel. Due to the delay constraint of the transmission, the Shannon's theorem is not strictly applicable and it seems challenging to evaluate which is the contribution of joint source/channel coding. The ADSL system is standardized to work at a bit error rate (BER) of 10/sup -7/. In this work we relax this constraint in order to understand if this constraint (suitable for data transmission) is optimum also in the case of video transmission. The aim of this work is twofold: first, it jointly optimize source and channel coding in order to find out the best point of work for the overall system and second, it compares in this scenario the single and multiple description video coding approaches.
A New Classifier Based on Associative Memories
Authors: Israel Roman-Godinez, Itzama Lopez-Yanez, Cornelio Yanez-Marquez
Venue: Proceedings of the 15th International Conference on Computing (2006)

The Lernmatrix, which is the first known model of associative memory, is an heteroassociative memory, but it can also act as a binary pattern classifier depending on the choice of the output patterns. However, this model suffers two great problems: saturation and imperfect recall of some of the associations, even in the fundamental set, depending on the associations. In this work, a modification to the original Lernmatrix recall phase algorithm is presented. This modification improves the recalling capacity of the original model. Experimental results show this improvement.
Adaptive linear filtering with convex constraints
Authors: P. L. Combettes, P. Bondon
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1995. on International Conference - Volume 02 (1995)

We address the problem of linear mean-square estimation with arbitrary convex constraints for dependent processes. Two algorithms are proposed and their convergence is established. The first algorithm, which is deterministic, covers the case of known correlation structures; the second, which is stochastic and adaptive, covers the case of unknown correlation structures. Since existing algorithms can handle at most one simple constraint this contribution is relevant to signal processing problems in which arbitrary convex inequality constraints are present.
Source-channel prediction in error resilient video coding
Authors: Hua Yang, K. Rose
Venue: Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 1 (2003)

Motion compensated prediction in conventional video coders is based on the encoder reconstruction of the previous frame where motion is estimated so as to minimize the encoder prediction error. Such design paradigms optimize the prediction at the encoder and ignore the effects of packet loss. In this paper, we propose a new prediction framework, which uses the expected decoder reconstruction of past frames for prediction. Moreover, the motion estimation criterion is accordingly modified to minimize the expected decoder prediction error. The approach builds on the recursive optimal per-pixel estimate (ROPE), which ensures accurate estimation of the expected values of decoder quantities. The proposed prediction scheme achieves better error resilience performance than its conventional counterpart.
A Meshed Multipath Routing Protocol in Mobile Ad Hoc Networks
Authors: Cheng-Ting Kuo, Chiu-Kuo Liang
Venue: Proceedings of the Seventh International Conference on Parallel and Distributed Computing, Applications and Technologies (2006)

A mobile ad hoc network (MANET) is characterized by multi-hop wireless links, absence of a fixed infrastructure, and frequent host mobility. Frequent topology change caused by node mobility makes it a challenging problem to raise packet delivery ratio. In this paper, we propose a scheme to improve existing Ad hoc On-Demand Distance Vector (AODV) protocols by creating multiple alternate routes with little overhead, resulting in better performance in packet delivery ratio. The advantage of the broadcast nature of wireless communications is used in this extended AODV protocol named AODV-MM (AODV with meshed multipath) to achieve link-disjoint multipath with better packet delivery ratio and lower overhead. The experimental results show the better performance in high mobility and heavy traffic load environment, compared with several routing protocols.
Interference detection for direct tool path generation from measured data points
Authors: D. Y. Li, Y. H. Peng, Z. W. Yin
Venue: Engineering with Computers (2006)

One of the main issues of the reverse engineering (RE) is the duplication of an existing physical part whose geometric information is partially or completely unavailable in measured form. In some industrial applications, physical parts are duplicated using three-axis CNC machines and ball-end mills. Many researches studied the problem of direct tool path generation from measured data point. However, up to the present, it appears that there is no reported study on interference detection in paths generated directly from measured data points. Interference detection is a curial problem in direct tool path generation from measured data points. This paper discusses the problem of local and global interference detection for three-axis machining in RE and proposes algorithms for local and global interference detection. With these algorithms, the measured data points captured from a physical part are analyzed and classified according to the shapes of the part. The method has been tested with several industrial parts, and it is shown to be robust and efficient especially for the part with free-form surfaces.
Region array SSA
Authors: Silvius Rus, Guobin He, Christophe Alias, Lawrence Rauchwerger
Venue: Proceedings of the 15th international conference on Parallel architectures and compilation techniques (2006)

Static Single Assignment (SSA) has become the intermediate program representation of choice in most modern compilers because it enables efficient data flow analysis of scalars and thus leads to better scalar optimizations. Unfortunately not much progress has been achieved in applying the same techniques to array data flow analysis, a very important and potentially powerful technology. In this paper we propose to improve the applicability of previous efforts in array SSA through the use of a symbolic memory access descriptor that can aggregate the accesses to the elements of an array over large, interprocedural program contexts. We then show the power of our new representation by using it to implement a basic data flow algorithm, reaching definitions. Finally we apply this analysis to array constant propagation and array privatization and show performance improvement (speedups) for benchmark codes.
Two-Term Asymptotic Approximation of a Cardiac Restitution Curve
Authors: John W. Cain, David G. Schaeffer
Venue: SIAM Review (2006)

If spatial extent is neglected, ionic models of cardiac cells consist of systems of ordinary differential equations (ODEs) which have the property of excitability, i.e., a brief stimulus produces a prolonged evolution (called an action potential in the cardiac context) before the eventual return to equilibrium. Under repeated stimulation, or pacing, cardiac tissue exhibits electrical restitution: the steady-state action potential duration (APD) at a given pacing period B shortens as B is decreased. Independent of ionic models, restitution is often modeled phenomenologically by a one-dimensional mapping of the form APDnext = f(B - APDprevious). Under some circumstances, a restitution function f can be derived as an asymptotic approximation to the behavior of an ionic model.In this paper, extending previous work, we derive the next term in such an asymptotic approximation for a particular ionic model consisting of two ODEs. The two-term approximation exhibits excellent quantitative agreement with the actual restitution curve, whereas the leading-order approximation significantly underestimates actual APD values.
Fourier-Based Object Description in Defect Image Retrieval
Authors: Iivari Kunttu, Leena Lepist&#x00f6;, Juhani Rauhamaa, Ari Visa
Venue: Machine Vision and Applications (2006)

Image retrieval has nowadays several industrial applications. In these imaging applications, which typically use large image archives, the matter of computational efficiency is essential. Therefore, compact and efficient features are required to describe the visual content of the images. In this paper, we introduce a new Fourier-based object descriptor that combines the shape and color information of the objects occurring in images into a single low-dimensional descriptor. The experiments performed with an industrial surface defect image database show that the proposed descriptor is an accurate and computationally light approach to object description in a real-world retrieval problem.
Language as a Small World Network
Authors: Maria Markosova, Peter Nather
Venue: Proceedings of the Sixth International Conference on Hybrid Intelligent Systems (2006)

Small world networks are graphs, which integrate the properties of random graphs and lattice graphs [5]. Several real networks can be modeled with a help of small worlds [1, 2, 6, 8]. As shown in this paper a word web has small world structure too. We have shown, that different languages, such as Slovak and English, have similar small world properties. As our second goal, we built a graph on the basis of kernel lexicon words, in order to test the scaling results of Cancho and Solé [6]. We speculate that the differences between calculated and measured exponents of connectivity distribution are due to the node aging.
High-definition multimedia for multiparty low-latency interactive communication
Authors: Petr Holub, Luděk Matyska, Miloš Liška, Lukáš Hejtmánek, Jiří Denemark, Tomáš Rebok, Andrei Hutanu, Ravi Paruchuri, Jan Radil, Eva Hladká
Venue: Future Generation Computer Systems (2006)

We describe a high-quality collaborative environment that uses High-Definition (HD) video to achieve near realistic perception of a remote site. The capture part, consisting of a HD camera, Centaurus HD-SDI capture card, and UltraGrid software, produces a 1.5 Gbps UDP data stream of uncompressed HD video that is transferred over a 10GE network interface to the high-speed IP network. The HD video stream displaying uses either a software-based solution with color depth down-sampling and field de-interlacing, or another Centaurus card. Data distribution to individual participants of the videoconference is achieved using a user-controlled UDP packet reflector based on the Active Element idea. The viability of this system has been demonstrated at the iGrid 2005 conference for a three-way high quality videoconference among sites in the Czech Republic, Louisiana, and California.
Search-based software test data generation for string data using program-specific search operators: Research Articles
Authors: Mohammad Alshraideh, Leonardo Bottaci
Venue: Software Testing, Verification Reliability (2006)

This paper presents a novel approach to automatic software test data generation, where the test data is intended to cover program branches which depend on string predicates such as string equality, string ordering and regular expression matching. A search-based approach is assumed and some potential search operators and corresponding evaluation functions are assembled. Their performance is assessed empirically by using them to generate test data for a number of test programs. A novel approach of using search operators based on programming language string operators and parameterized by string literals from the program under test is introduced. These operators are also assessed empirically in generating test data for the test programs and are shown to provide a significant increase in performance. Copyright &copy; 2006 John Wiley & Sons, Ltd.A version of this paper was originally presented at UKTest2005: The Third U.K. Workshop on Software Testing Research, held at the University of Sheffield, U.K., 5&ndash;6 September 2005. It is reproduced here in revised and extended form with the permission of the Workshop organizers
ProtChew: Automatic Extraction of Protein Names from Biomedical Literature
Authors: Amund Tveit, Rune Saetre, Astrid Laegreid, Tonje Strommen Steigedal
Venue: Proceedings of the 21st International Conference on Data Engineering Workshops (2005)

With the increasing amount of biomedical literature, there is a need for automatic extraction of information to support biomedical researchers. Due to incomplete biomedical information databases, the extraction is not straightforward using dictionaries, and several approaches using contextual rules and machine learning have previously been proposed. Our work is inspired by the previous approaches, but is novel in the sense that it is fully automatic and doesn't rely on expert tagged corpora. The main ideas are 1) unigram tagging of corpora using known protein names for training examples for the protein name extraction classi- fier and 2) tight positive and negative examples by having protein-related words as negative examples and protein names/synonyms as positive examples. We present preliminary results on Medline abstracts about gastrin, further work will be on testing the approach on BioCreative benchmark data sets.
Social Software Applications in Formal Online Education
Authors: Terry Anderson
Venue: Proceedings of the Sixth IEEE International Conference on Advanced Learning Technologies (2006)

This paper discusses the use of social software tools in distance education applications. It presents data from an exploratory application of social software tools in a paced, graduate level course delivered online. Results indicate that the functionality of current generation of social software tools can be duplicated using existing LMS and email systems, thus they offer only limited relative advantage over older technologies in this context. Ongoing work will investigate their relative advantage in more open forms of self-paced and continuous enrollment education and non-formal learning.
A practitioner report on the evaluation of the performance of the C, C++ and Java compilers on the OS/390 platform
Authors: D. A. Cargill
Venue: Proceedings of the 2000 IEEE International Symposium on Performance Analysis of Systems and Software (2000)

The performance of C, C++ and Java/sup TM/ applications on the OS/390(R) platform is becoming an increasingly important issue as customers consolidate their server applications written in these languages on an OS/390 POSIX compliant system. With applications that run on multiple platforms such as the Lotus(R) Domino/sup TM/ Server and SAP R/3 AppServer, customers have the ability to compare actual applications instead of benchmarks across these platforms. The code generated by the C, C++ and Java compilers is critical for the performance of many of these applications. However, doing performance measurements and analysis on these large applications can be extremely difficult, so we use industry standard compute-intensive benchmarks to measure and analyze the performance of the code generated by the C, C++ and Java compilers. This paper briefly describes the activities performed by the authors to evaluate the performance of the code generated by the C, C++, and Java compilers on the OS/390 platform. It particularly describes the performance objectives, the benchmarks used, the performance evaluation methodology, performance analysis, and some normalized results. The term Java compiler in this paper refers to the IBM VisualAge(R) for Java, Enterprise Edition for OS/390 compiler that takes the platform-independent byte-code and translates it into machine native object code that can then be bound into executable modules, as is done for other high-level languages. The resulting code is executed under the VisualAge for Java, Enterprise Edition run-time library rather than in a Java virtual machine (JVM).
Guest Editors' Introduction: Global Software Development: How Far Have We Come?
Authors: Daniela Damian, Deependra Moitra
Venue: IEEE Software (2006)

Global software development efforts have increased in recent years, and such development seemsto have become a business necessity for various reasons, including cost, availability of resources,and the need to locate development closer to customers. However, there's still much to learn aboutglobal software development before the discipline becomes mature. This special issue aims to assessthe gap between the state of the art and the state of the practice. It presents five articles thatcover various aspects of global software development, including knowledge management strategies,distributed software development, requirements engineering, distributed requirements, and managingoffshore collaboration. A Point/Counterpoint department discusses whether global software developmentis indeed a business necessity.This article is part of a special issue on Global Software Development.
Independent Channel Multi Method Multi-Factor Authentication (MMM-FA) model for B2P remote Commerce
Authors: A. K. M. Harun-Ar-Rashid
Venue: Proceedings of the 10th IEEE on International Enterprise Distributed Object Computing Conference Workshops (2006)

Electronic Commerce, popularly known as eCommerce plays am important role in world business. However, the security of eCommerce is very difficult and gives sufferings to the vendors, architects and also users. Therefore, lots of security models are proposed and operated at present time. SecureID by RSA is one of them that uses security token. The steady progress of code breaking threats SecureID system too. The recent phenomenon of secure use of cell phone for remote commerce called mCommerce makes revolutionary progress in remote business. But the potential threat to mCommerce also exists. Therefore, Independent Channel Multi Method Multi-Factor Authentication model is proposed for rapid translatable secure electronic and mobile commerce called emCommerce.