ppxscal/embedding_network huggingface dataset:
The suitability of a monetary union in East Asia: What does the cointegration approach tell?
Authors: Kiyotaka Sato, Zhaoyong Zhang, David Allen
Venue: Mathematics and Computers in Simulation (2009)

The issue of whether or not to form a monetary union in East Asia remains a hot issue in the study of the East Asian economies. Most of the existing studies apply a framework focusing on the symmetric issue of the fundamental shocks and the extent of correlations by applying the Blanchard and Quah [O.J. Blanchard, D. Quah, The dynamic effects of aggregate demand and supply disturbances, American Economic Review 79 (1989) 655-673] structural vector autoregression (VAR) technique, which includes first-differenced variables in the model and examines only the bilateral relationships. However, the shock symmetry does not necessarily require the co-movements of the real output variables between the countries concerned. The present paper employs the Johansen [S. Johansen, Statistical analysis of cointegration vectors, Journal of Economic Dynamics and Control 12 (1988) 231-254] cointegration approach to check the long-run co-movements of real outputs among the East Asian countries, Japan and the United States to draw some implications about forming a monetary union in the region. The results suggest that some groups of Asian NIEs plus the United States will be potential candidates to form a monetary union. Mainland China is not suggested as a member country of a monetary union with any of the grouped economies. More interestingly, the ASEAN countries alone are not a feasible group to form a monetary union unless Japan is included, which has important implications for the role of Japan towards the formation of a regional monetary union.
Hierarchical modeling of the heat equation in a heterogeneous plate
Authors: Ana Carolina Carius, Alexandre L. Madureira
Venue: Applied Numerical Mathematics (2009)

In this work we investigate the modeling of heterogeneous plates, where the length scale of the heterogeneity can be much smaller than the area of the plate's middle surface. We derive a two-dimensional model for the original problem, and the resulting PDEs not only have rough coefficients but also depend on the thickness, resulting in a singularly perturbed problem. We employ asymptotic techniques to show that, as the plate thickness tends to zero, our model converges to the exact solution. To tame the numerical troubles of the resulting model we use finite elements methods of multiscale type.
Polynomial pseudo-random number generator via cyclic phase
Authors: A. Marchi, A. Liverani, A. Del Giudice
Venue: Mathematics and Computers in Simulation (2009)

Fast and reliable pseudo-random number generator (PRNG) is required for simulation and other applications in scientific computing. In this work, a polynomial PRNG algorithm, based on a linear feedback shift register (LFSR) is presented. LFSR generator of order k determines a 2^k-1 cyclic sequence period when the associated polynomial is primitive. The main drawback of this generator is the cyclicality of the shifted binary sequence. A non-linear transformation is proposed, which eliminates the underlying cyclicality and maintains both the characteristics of the original generator and the feedback function. The modified generator assures a good trade off between fastness and reliability and passes both graphical and statistical tests.
Studies on the mechanical elastic systems dynamics of the rigid body with structural symmetries: modal analyse, transmitted forces and moments
Authors: Nicusor Dragan
Venue: Proceedings of the 10th WSEAS international conference on Automation & information (2009)

This paper analyses the behavior of a symmetrical structure rigid body with elastic bearings excited by harmonical forces and couples. Starting from general moving differential equation the study determines particular coupled moving for two different type of symmetries: with a vertical axis and a vertical-longitudinal plane of symmetry of rigid body. The harmonical excitations taken into consideration are: couples (e.g. pitching and rolling), eccentric and inclined force. The author of the study determines the analytical expressions of the amplitudes of forced vibrations and of the transmitted forces to the foundation trough the linear viscous-elastic bearings by the rigid body excited with harmonical forces and couples, pointing out the influences of structural parameters of the system (masses, mass inertia, elasticities, aso.).
Flash XML Applications: Use AS2 and AS3 to Create Photo Galleries, Menus, and Databases
Authors: Joachim Bernhard Schnier
Venue:  (2007)

Add seamless, interactive, user-controlled delivery to your Flash applications. This book builds upon your understanding of basic ActionScript (AS) syntax with the foundational skills that you need to use XML in Flash applications and AS2 or AS3 to migrate your existing applications. Beginning with an introduction to XML, XML parsing methods, and a short introduction to AS2 you learn how to create a universal XML load/onload Class as well as a universal XHTML parser. Then you learn how to use Components using XML as the data source, including the menu, menubar, datagrid and tree component. Finally, a tutorial project-the design and development of a Real Estate Web site that contains an XML search engine-pulls it all together with hands-on experience. All the applications use XML as the data source and are written as class files. Select parts of the Real Estate Web site are redeveloped in AS3 for purposes of illustration. The new XML class is presented and specific code examples demonstrate techniques to apply methods and use properties. Particular attention is paid to the differences between AS2 and AS3 and how to effectively transition from one AS version to the other.The companion CD contains code for all of the properties and methods of the AS2, AS3, and XML class examples. Components for the Real Estate Web site project are also provided. *Build on basic ActionScript syntax skills*Add seamless, interactive, user-controlled delivery 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
CM-DOM: a Concept Map Based Tool for Supervising Domain Acquisition
Authors: M. Larraòaga, U. Rueda, M. Kerejeta, J. A. Elorriaga, A. Arruarte
Venue: Proceeding of the 2005 conference on Artificial Intelligence in Education: Supporting Learning through Intelligent and Socially Informed Technology (2005)

In this paper CM-DOM, a concept map based graphical tool, is described. CM-DOM allows the supervision of the Domain Module acquisition from documents in a semi automatic way. This tool facilitates the inspection and refinement of the results of the acquired knowledge.
Digital Astrophotography: A Guide to Capturing the Cosmos
Authors: Stefan Seip
Venue:  (2007)

At first glance, the challenge of astrophotography may appear daunting. But not only are spectacular results possible, they are easy to learn with the step-by-step instructions provided in Stephan Seip's Digital Astrophotography: A Guide to Capturing the Cosmos. Today, amateurs can produce images that only twenty years ago a large professional observatory would have been proud of; and this book shows you how. Learn how to: Set up your camera for optimum results Focus your camera for razor-sharp images Take beautiful night shots with a simple compact digital camera, a tripod, and a telescope Use a DSLR camera to shoot the Sun, Moon, stars, star clusters, and nebulae through your telescope Get brilliant images of planets with a Webcam Capture remote galaxies with a charge-coupled device (CCD) camera just like a pro Also included are lessons on the processing that is done in the "studio" after your shoot, including how to: Shoot RAW format images and improve them with calibration frames Take short exposures of faint deep-sky objects and combine them into a longer exposure Perform brightness, contrast, and color correction Make corrections to correct for vignetting and uneven field illumination Process your images for stunning results Equipment requirements for astrophotography range from nothing but a simple camera and tripod to a multi-thousand dollar computer controlled telescope equipped with a CCD auto-guider and separate guide-scope. Researching the best equipment for your needs is a task in itself. Seip helps you to sort out which cameras are best for the various celestial objects, what to look for when buying a camera, and what accessories you really need. The rewards of this fascinating hobby, as the author says, "Grants you unforgettable hours under the night sky; it allows you to produce aesthetically rewarding and lasting results. Astrophotography is a love-match between physics, photography, art, and digital image processing. It is exciting!" 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
Adaptive QoS-aware resource allocation scheme for multimedia broadcasting over geostationary satellite networks
Authors: Hongfei Du, Barry G. Evans
Venue: Proceedings of the 2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks (2008)

With their inherent broadcast capacities and reliable extensive geographical coverage, the broadband satellite networks are emerged as a promising approach for the delivery of multimedia services in 3G and beyond systems. To utilise the available resources in an optimized way whilst guaranteeing the diverse quality-of-service (QoS) demands, an Adaptive QoS-aware Resource Allocation (AQRA) scheme is proposed in this paper for multimedia delivery in satellite broadcasting networks. By taking into account essential aspects of a successful QoS provisioning whilst preserving the system power/resource constraints, the proposed scheme is capable of allocating the resources, in an adaptive manner, according to the current QoS satisfaction of each session. Simulation results prove that the AQRA achieves significantly better performance than those of existing schemes on multiple performance metrics.
Combining Bayesian Networks and Formal Reasoning for Semantic Classification of Student Utterances
Authors: Maxim Makatchev, Kurt VanLehn
Venue: Proceeding of the 2007 conference on Artificial Intelligence in Education: Building Technology Rich Learning Contexts That Work (2007)

We describe a combination of a statistical and symbolic approaches for automated scoring of student utterances according to their semantic content. The proposed semantic classifier overcomes the limitations of bag-of-words methods by mapping natural language sentences into predicate representations and matching them against the automatically generated deductive closure of the domain givens, buggy assumptions and domain rules. With the goal to account for uncertainties in both symbolic representations of natural language sentences and logical relations between domain statements, this work extends the deterministic symbolic approach by augmenting the deductive closure graph structure with conditional probabilities, thus creating a Bayesian network. By deriving the structure of the network formally, instead of estimating it from data, we alleviate the problem of sparseness of training data. We compare the performance of the Bayesian network classifier with the deterministic graph matching-based classifiers and baselines.
Determinants of behavioral intention to mobile banking
Authors: Ja-Chul Gu, Sang-Chul Lee, Yung-Ho Suh
Venue: Expert Systems with Applications: An International Journal (2009)

With the improvement of mobile technologies and devices, banking users are able to conduct banking services at anyplace and at anytime. Recently, many banks in the world have provided mobile access to financial information. The reason to understand what factors contribute to users' intention to use mobile banking is important issue of research. The purpose of this research is to examine and validate determinants of users' intention to mobile banking. This research used a structural equation modeling (SEM) to test the causalities in the proposed model. The results indicated strong support for the validity of proposed model with 72.2% of the variance in behavioral intention to mobile banking. This study found that self-efficiency was the strongest antecedent of perceived ease-of-use, which directly and indirectly affected behavioral intention through perceived usefulness in mobile banking. Structural assurances are the strongest antecedent of trust, which could increase behavioral intention of mobile banking. This research verified the effect of perceived usefulness, trust and perceived ease-of-use on behavioral intention in mobile banking. The results have several implications for mobile banking managers.
Encrypting messages with visual key
Authors: Dusmanescu Dorel
Venue: WSEAS Transactions on Computers (2009)

This paper presents a method for encrypting messages, which uses for this operation an image or a part of an image as an encryption/decryption key. The need to encrypt messages for protecting their content knew an increase from the apparition of Internet and electronic transactions. The great number of messages that flows in a computer network and over the Internet is requiring very fast encrypt/decrypt processes for assuring real-time secured communications. Complex algorithms used in present for encrypting/decrypting messages use complex keys and complex encrypt/decrypt functions that need an increased computer power for real-time applications (media).
Proceedings of the ACM SIGPLAN Fourth Workshop on Programming Languages and Analysis for Security
Venue: Programming languages and analysis for security (2009)

It is our pleasure to welcome you to the ACM SIGPLAN Fourth Workshop on Programming Languages and Analysis for Security (PLAS 2009). The call for papers attracted 19 submissions: 15 full-length papers, and 4 formal short papers. Authors could choose to submit full-length papers, formal short papers, or informal short papers (which would not be included in the proceedings, and would not preclude publication in other conference venues or journals). Authors could choose to submit their work anonymously; one submission did so. Each submission received at least three reviews. All reviews were made available to all program committee members, and the final decision on which papers to accept was made after a three day on-line program committee meeting. Eight long papers and three short ones will appear in the proceedings and be presented at the Workshop.
A development of wireless interoper-mobile application for outdoor operation management
Authors: Jiri F. Urbanek, Jaroslav Prucha
Venue: Proceedings of the 8th WSEAS international conference on Electronics, hardware, wireless and optical communication (2009)

Last baseline of interoper-mobile wireless application for disaster events crisis and emergency management arises from CAMouflage™. The CAMouflage™ means previous baseline of Czech University of Defence R&D's project acronym Computer Aided Mobile Roaming university made NET for last stage mile. Its functional improvement follows from innovative architecture making and dynamic modelling & simulating & crisis scenarios creation ability via the method UML,(UP)/DYVELOP by means of its dynamic blazons development. They are enabling to serve for relevant entities (actors and domains) behaviour of disaster events driven human activities of crisis/emergency management practitioners in various environments, where developing WiMAX systems and technologies was alpha and beta intensive operational tested already. The useCaseCAMouflage represents project's third milestone - initial operational capability. Next innovation & iteration processes of projects life cycles were enforced by conditions change of the domains, situation awareness and new actor's requirements. These everythings are a presumption of four project's milestone fruition - product release. It is base for new project of Czech defence research 'Adaptive Camouflage'. Here useCaseBlazons are superior to display & simulate of dynamic events in live PowerPoint presentation, which was dramatized in Cambridge finally in paper ID number 609-289.
Personalized content-based retrieval in mobile music services
Authors: Paraskevi S. Lampropoulou, Aristomenis S. Lampropoulos, George A. Tsihrintzis
Venue: Proceeding of the 2008 conference on Knowledge-Based Software Engineering: Proceedings of the Eighth Joint Conference on Knowledge-Based Software Engineering (2008)

ALIMOS is a middleware system that facilitates the access to digital music libraries in push technology-based mobile services. Specifically, a mobile user is provided with the ability to query for music files that belong to the same genre by simply sending an example music file from his/her mobile device. The personalization in ALIMOS is based on information collected while the service is used by a user and provides the user with results that have a higher content similarity with the query. The personalization mechanism is based on a novel application of clustering algorithms.
Brief Communication: Ambush hypothesis revisited: Evidences for phylogenetic trends
Authors: Tiratha Raj Singh, Kamal Raj Pardasani
Venue: Computational Biology and Chemistry (2009)

Recoding events occur in competition with standard readout of the transcript, and are site-specific. Recoding is the reprogramming of mRNA translation by localized alterations in the standard translational rules. Frame-shifting is one class of recoding and defined as protein translations that start not at the first, but either at the second (+1 frame-shift) or the third (-1 frame-shift) nucleotide of the codon. Coding sequences lack stop codons, but frame-shifted sequences contain many stop codons, termed off-frame stops or hidden stops. These hidden stops terminate frame-shifted translation, potentially decreasing energy, and resource waste on non-functional proteins. Our results support this putative ancient adaptive event for the selection of codons that can be part of hidden stop codons. All taxonomic groups represent positive correlation between codon usage frequencies and contribution of codons to hidden stops in off-frame context. Our analysis on nuclear and mitochondrial genomic data revealed phylogenomic selection of ambush mechanism. Strongest impact of this event was found in viruses and bacteria. It has been suggested that this mechanism has occurred and been utilized in the early stages of evolution.
Participating in Cognition: The Interactive Search Optimization Algorithm
Authors: Nadav Abkasis, Israel Gottlieb, Eliraz Itzchaki
Venue: Proceeding of the 2008 conference on Artificial General Intelligence 2008: Proceedings of the First AGI Conference (2008)

We consider the Distributed Cognition paradigm as a framework for implementing artificial components of human cognition. We take email/internet search as a setting of distributed cognition and describe an algorithm that intervenes and enhances a component of this distributed process. Results are presented demonstrating the effectiveness of the algorithm in interaction with an automaton simulating human search activity. We define a notion of synchronization with a non-random, non-Turing computation and argue that the given algorithm exhibits such synchronization behavior. Our results suggest that the framework may be useful for studying a class of non-Turing computation that is central to General Intelligence.
Hot roller embossing for microfluidics: process and challenges
Authors: S. H. Ng, Z. F. Wang
Venue: Microsystem Technologies (2009)

We report an initial study on hot roller embossing as a potential process for the mass production of polymer based microfluidic chips. Measurements conducted on 100&#x00a0;&#x00b5;m features showed that the lateral dimensions could be replicated to within 2% tolerance, while over 85% of mould depth was embossed. Feature sizes down to 50&#x00a0;&#x00b5;m and feature depths up to 30&#x00a0;&#x00b5;m had been achieved. Results revealed that the embossing depth increased with an increase in the nip force or a decrease in the rolling speed. There was an optimum temperature for achieving a high embossing depth; this was due to the reflow effect seen at higher temperatures. One observation included an asymmetric pile up of polymer material outside the embossed regions as a result of the orientation of the microchannel with respect to the rolling direction. This directional effect could be due to the dynamics of the roller setup configuration.
Understanding the Locus of Modality Effects and How to Effectively Design Multimedia Instructional Materials
Authors: Jesse S. Zolna
Venue: Proceeding of the 2005 conference on Artificial Intelligence in Education: Supporting Learning through Intelligent and Socially Informed Technology (2005)

AIED learning systems sometimes employ multimedia instructional materials that leverage technology to replace instructional text with narrations. This can provide cognitive advantages and disadvantages to learners. The goal of this study is to improve principals of information design that cater to human information processing. Prior research in educational psychology has focused on facilitating learning by presenting information in two modalities (auditory and visual) to increase perceptual information flow. It is hypothesized that similar effects might also occur during cognitive manipulations (e.g., extended storage and fact association). The described study separates perceptual in-formation effects from those of cognitive operations by presenting auditory and visual information separately. The typical multimedia effect was not found, but other influences on learning were observed. An understanding of these other causes will help us create a more complete picture of what producers of multimedia learning materials should consider during design.
Finding Biologically Accurate Clusterings in Hierarchical Tree Decompositions Using the Variation of Information
Authors: Saket Navlakha, James White, Niranjan Nagarajan, Mihai Pop, Carl Kingsford
Venue: Proceedings of the 13th Annual International Conference on Research in Computational Molecular Biology (2009)

Hierarchical clustering is a popular method for grouping together similar elements based on a distance measure between them. In many cases, annotations for some elements are known beforehand, which can aid the clustering process. We present a novel approach for decomposing a hierarchical clustering into the clusters that optimally match a set of known annotations, as measured by the variation of information metric. Our approach is general and does not require the user to enter the number of clusters desired. We apply it to two biological domains: finding protein complexes within protein interaction networks and identifying species within metagenomic DNA samples. For these two applications, we test the quality of our clusters by using them to predict complex and species membership, respectively. We find that our approach generally outperforms the commonly used heuristic methods.