ppxscal/embedding_network huggingface dataset:
Design and simulation of MEMS optical crossconnect with integrated nanophotonic crystals technology
Authors: H. G. Teo, J. Singh, C. Lu, A. Q. Liu
Venue: Proceedings of the Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (2003)

Evolving optical transport networks of wavelength-division-multiplexed (WDM) systems has lead to rapid growth in demand for functions inside the optical layer to manipulate traffic on the wavelength basis. In this paper, a novel method to make in-plane reactive-ion-etching (RIE) micro-electro-mechanical systems (MEMS) optical switch devices in optical communication easier and better is explored, through nano fabrication technology, with the integration of nano photonic-bandgap (PBG) crystal waveguides to improve the performance of MEMS optical-cross-connects (OXCs).
Using boosting to improve a hybrid HMM/neural network speech recognizer
Authors: H. Schwenk
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 02 (1999)

"Boosting" is a general method for improving the performance of almost any learning algorithm. A previously proposed and very promising boosting algorithm is AdaBoost. In this paper we investigate if AdaBoost can be used to improve a hybrid HMM/neural network continuous speech recognizer. Boosting significantly improves the word error rate from 6.3% to 5.3% on a test set of the OGI Numbers 95 corpus, a medium size continuous numbers recognition task. These results compare favorably with other combining techniques using several different feature representations or additional information from longer time spans. In summary, we can say that the reasons for the impressive success of AdaBoost are still not completely understood. To the best of our knowledge, an application of AdaBoost to a real world problem has not yet been reported in the literature either. In this paper we investigate if AdaBoost can be applied to boost the performance of a continuous speech recognition system. In this domain we have to deal with large amounts of data (often more than 1 million training examples) and inherently noisy phoneme labels. The paper is organized as follows. We summarize the AdaBoost algorithm and our baseline speech recognizer. We show how AdaBoost can be applied to this task and we report results on the Numbers 95 corpus and compare them with other classifier combination techniques. The paper finishes with a conclusion and perspectives for future work.
Security analysis of smartcard to card reader communications for biometric cardholder authentication
Authors: Luciano Rila, Chris J. Mitchell
Venue: Proceedings of the 5th conference on Smart Card Research and Advanced Application Conference - Volume 5 (2002)

The use of biometrics, and fingerprint recognition in particular, for cardholder authentication in smart-card systems is growing in popularity. In such a biometrics-based cardholder authentication system, sensitive data may be transferred between the smartcard and the card reader. In this paper we identify and classify possible threats to the communications link between card and card reader during cardholder authentication. We also analyse the impact of these threats. We consider five different architectures and use the threat analysis to indicate the relative security of the various possible architectures.
Unsupervised segmentation of Chinese text by use of branching entropy
Authors: Zhihui Jin, Kumiko Tanaka-Ishii
Venue: Proceedings of the COLING/ACL on Main conference poster sessions (2006)

We propose an unsupervised segmentation method based on an assumption about language data: that the increasing point of entropy of successive characters is the location of a word boundary. A large-scale experiment was conducted by using 200 MB of unsegmented training data and 1 MB of test data, and precision of 90% was attained with recall being around 80%. Moreover, we found that the precision was stable at around 90% independently of the learning data size.
On the use of the Karhunen-Loeve transform and expansion matching for generalized feature detection
Authors: D. Nandy
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1996. on Conference Proceedings., 1996 IEEE International Conference - Volume 04 (1996)

A novel generalized feature extraction method based on the expansion matching (EXM) method and the Karhunen-Loeve (KL) transform is presented. This yields an efficient method to locate a large variety of features with a single pass of parallel filtering operations. The EXM method is used to design optimal detectors for different features. The KL representation is used to define an optimal basis for representing these EXM feature detectors with minimum truncation error. Input images are then analyzed with the resulting KL bases. The KL coefficients obtained from the analysis are used to efficiently reconstruct the response due to any combination of feature detectors. The method is successfully applied to real images and extracts a variety of arc and edge features as well as more complex junction features formed by combining two or more arcs or line features.
RegColl: centralized registry framework for infrastructure system management
Authors: Brent ByungHoon Kang, Vikram Sharma, Pratik Thanki
Venue: Proceedings of the 19th conference on Large Installation System Administration Conference - Volume 19 (2005)

System administrators are faced with the challenge of managing and compiling information about deployed systems to ensure the maintenance, scalability, security, and overall availability of the infrastructure systems. Recently, securing and monitoring the deployed enterprise infrastructure systems has taken unprecedented importance due to the added accountability now being placed on managing corporate data and private information. Compliance with new regulation has never been stressed more than now - with SOX/Bill 198, GLB Act/PIPDEA, HIPPA to name a few regulations. Toward this, we present RegColl: A practical framework for registry and system configuration management for monitoring and maintaining the health of corporate infrastructure systems in Windows environment. In RegColl, registry and configuration information are collected at a centralized location so as to inspect and analyze the data for policy compliance, system configuration monitoring, and incident response services.
All I really need to know (about creative thinking) I learned (by studying how children learn) in kindergarten
Authors: Mitchel Resnick
Venue: Proceedings of the 6th ACM SIGCHI conference on Creativity cognition (2007)

This paper argues that the "kindergarten approach to learning" -- characterized by a spiraling cycle of Imagine, Create, Play, Share, Reflect, and back to Imagine -- is ideally suited to the needs of the 21st century, helping learners develop the creative-thinking skills that are critical to success and satisfaction in today's society. The paper discusses strategies for designing new technologies that encourage and support kindergarten-style learning, building on the success of traditional kindergarten materials and activities, but extending to learners of all ages, helping them continue to develop as creative thinkers.
Leveraging Semantic Web technologies for business component specification
Authors: Axel Korthaus, Michael Schwind, Stefan Seedorf
Venue: Web Semantics: Science, Services and Agents on the World Wide Web (2007)

Although component-based development (CBD) is among the predominant software engineering paradigms today, numerous issues still remain preventing business component marketplaces from taking off. For example, it is state of the practice to apply different notations and modeling languages for the specification of different aspects of a business component. Besides the fact that there is a lack of standards for holistic approaches to multi-faceted business component specification, the individual specification techniques very often are not powerful enough to allow for the reliable and efficient discovery and retrieval of matching components or the automatic deduction of statements about the semantic and syntactic compatibility of components for application composition. In this article, we argue that CBD processes can greatly benefit from the use of Semantic Web technologies for business component specification. The Resource Description Framework (RDF), for example, can provide a means to integrate existing specification approaches and add new value by superimposing a common knowledge representation layer on all specification artifacts, thus enabling semantic queries and reasoning about the properties of business components.
Local strategy learning in networked multi-agent team formation
Authors: Blazej Bulka, Matthew Gaston, Marie Desjardins
Venue: Autonomous Agents and Multi-Agent Systems (2007)

Networked multi-agent systems are comprised of many autonomous yet interdependent agents situated in a virtual social network. Two examples of such systems are supply chain networks and sensor networks. A common challenge in many networked multi-agent systems is decentralized team formation among the spatially and logically extended agents. Even in cooperative multi-agent systems, efficient team formation is made difficult by the limited local information available to the individual agents. We present a model of distributed multi-agent team formation in networked multi-agent systems, describe a policy learning framework for joining teams based on local information, and give empirical results on improving team formation performance. In particular, we show that local policy learning from limited information leads to a significant increase in organizational team formation performance compared to a random policy.
Service Invocation Issues within the IP Multimedia Subsystem
Authors: Anahita Gouya, Noel Crespi, Emmanuel Bertin
Venue: Proceedings of the Third International Conference on Networking and Services (2007)

IP Multimedia Subsystem (IMS) is a standardized service control overlay meant to offer rich IP multimedia services to the users in different networks. However, IMS service invocation as specified by 3GPP encounters multiple issues and ambiguities including "service conflict" and "service composition" management. In this paper, we highlight these issues by focusing on the following question: How should IMS interact with multiple services during a single IP multimedia session while 1) detecting and resolving potential conflicts between these services and 2) ensuring the interoperability and cooperation between these services? Based on the requirements and characteristics of Next Generation Network (NGN) service architecture, we propose architectural and functional improvements to the service invocation mechanism of IMS in order to answer to this question.
DITools: application-level support for dynamic extension and flexible composition
Authors: Albert Serra, Nacho Navarro, Toni Cortes
Venue: Proceedings of the annual conference on USENIX Annual Technical Conference (2000)

Today, operating systems set-up process images from executable files using fixed rules. Programs are restricted to run in essentially the same environment at every execution. However, we believe that this behavior is not always convenient, and that many times it is interesting to make variations to the execution environment, either to introduce new functionality or to specialize critical services, even when their source code is not available. This problem can be mitigated through application-level extensibility and flexible composition of binary modules. In this paper, we describe DITools an application-level tool that supports dynamic interposition on dynamically-linked procedure-call boundaries. This tool enables both global and per-module dynamic interposition. We also present a detailed use of DITools and various short examples of extensions.
Web enabling applications
Authors: Brent Welch, Stephen Uhler
Venue: Proceedings of the 5th conference on Annual Tcl/Tk Workshop 1997 - Volume 5 (1997)

This demo shows a Tcl-based Web server that can be extended with application-specific modules to support a variety of applications. The server is written as a pure Tcl script[Ouster94][Welch95] that is modular, extensible, and embeddable. Clients use a regular Web browser to make HTTP requests to the Tcl server. The server can be directly embedded into existing applications, or it can act as a stand-alone server that includes application-specific modules. The server web-enables your application so it can be accessed through a standard Web browser.
3D Reconstruction Using Multibaseline Omnidirectional Motion Stereo Based on GPS/Dead-reckoning Compound Navigation System
Authors: Jun-Ichi Meguro, Jun-Ichi Takiguchi, Yoshiharu Amano, Takumi Hashizume
Venue: International Journal of Robotics Research (2007)

This paper presents a motion-stereo device using the GPS/DR (dead reckoning) combination along with omnidirectional cameras to reconstruct 3-D environments by means of sensors small enough to be installed on a mobile robot. The proposed technique is based on the fact that it is possible to determine epipolar lines by using the precise positions and heading angles measured by a combination of GPS and various sensors; high-precision stereo matching may then be performed by means of geometrical restrictions. Furthermore, in comparison to the other stereo techniques, it is also possible to establish longer baselines for peripheral objects and simultaneously provide a higher precision in calculating the distances to far objects by applying voting processing to a series of distant motion-stereo images, which can be attained by using more than one baseline length, in 3-D spaces based on the precise positions and heading angles. In short, the proposed technique provides a substantial increase in measurement precision as compared to that with the well-known SFM (structure from motion) technique for reconstructing 3-D environments with monocular cameras; this is because the proposed technique utilizes a greater number of mobile parameters, which are determined using precise cameras. In this experiment, the measurement precision of the proposed technique has been evaluated in reconstructing the shapes of vehicles parked alongside a road; the measurements were found to have a standard deviation of 140 mm within a range of 10 m. It can be stated that the proposed omnidirectional motion-stereo technique is robust to environmental perturbations and can accurately estimate distances in the case of highly textured objects.
The GNOME desktop environment
Authors: Miguel de Icaza, Elliot Lee Federico Mena
Venue: Proceedings of the annual conference on USENIX Annual Technical Conference (1998)

We present an overview of the free GNU Network Object Model Environment (GNOME). GNOME is a suite of X11 GUI applications that provides joy to users and hackers alike. It has been designed for extensibility and automation by using CORBA and scripting languages throughout the code. GNOME is licensed under the terms of the GNU GPL and the GNU LGPL and has been developed on the Internet by a loosely-coupled team of programmers.
Inquiry-based experiments in the introductory physics laboratory
Authors: R. Ross
Venue: Proceedings of the 30th Annual Frontiers in Education - Volume 01 (2000)

The paper describes a significant effort to improve the second semester general physics laboratory at the University of Detroit Mercy by incorporating inquiry-based laboratory experiments. The inquiry-based laboratory experiments are modeled on published research results. We require the students to confront their misconceptions by directing them through a process of inquiry. The students use simple and inexpensive materials to perform experiments on direct-current circuits, magnets, electromagnetism, and optics. They use these experiments to develop operational definitions for technical terms, construct models of the relevant physical phenomena and apply the models in new situations to test their predictive capability. The paper describes some of the laboratory experiments, and describes their effect on student outcomes. Student attitudes toward these laboratory exercises are also presented. 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
The Influence of Alignment on the Post-Implementation Success of a Core Banking Information System: An Embedded Case Study
Authors: Daniel Beimborn, Jochen Franke, Heinz-Theo Wagner, Tim Weitzel
Venue: Proceedings of the 40th Annual Hawaii International Conference on System Sciences (2007)

The literature suggests that the success of an information system among others depends on its utilization. In this paper, we argue that operational IT business alignment is an important driver of system usage and thereby of the market success of the supported business process. Using an embedded case study in four branches, the back office, and the IT department of a retail bank, many findings of the recent alignment literature can be supported. Using a strict business process perspective, we also offer new insights by showing that alignment is important for IS success in operations as well and positively influences post-implementation IS usage. In particular, mutual understanding between the units and shared domain knowledge not only between IT and business but also between different business units supported by the same core IS turned out to be very important factors of IS usage that have so far been neglected.
Avoiding over-estimation in bandwidth extension of telephony speech
Authors: M. Nilsson
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 200. on IEEE International Conference - Volume 02 (2001)

We present a new way of treating the problem of extending a narrow-band signal to a wide-band signal. For many cases of bandwidth extension, the high-band energy is overestimated, leading to undesirable audible artifacts. To overcome these problems we introduce an asymmetric cost-function in the estimation process of the high-band that penalizes over-estimates more than under-estimates of the energy in the high-band. We show that the resulting attenuation of the estimated high-band energy depends on the broadness of the a-posteriori distribution of the energy given the extracted information about the narrow-band. Thus, the uncertainty about how to extend the signal at the high-band influences the level of extension. Results from a listening test show that the proposed algorithm produces less artifacts.
MuDiS - A Virtual Learning Environment
Authors: Jeetinder Singh, Jayanthi Sivaswamy, Krishnarajulu Naidu
Venue: Proceedings of the The First IEEE International Workshop on Digital Game and Intelligent Toy Enhanced Learning (2007)

This paper presents a multi-component; distributed system (MuDiS) based solution for building a virtual learning environment which combines a wide range of technology, tools and digital gaming concepts to create an interactive tool for science education. MuDiS has been designed to be an extensible and easy-to-use system. The proposed environment is intended for designing and monitoring of educational content as well as creating a platform for exploring ideas. The system allows exchange of educational content and integrate different pedagogical approaches to learning and teaching under the same environment. We have developed a virtual physics lab that serves as an exemplar for the proposed virtual environment. We present the design details of the physics lab and discuss its performance.
Global dynamics of an epidemic model with an unspecified degree
Authors: Yilei Tang, Weigu Li
Venue: Computers Mathematics with Applications (2007)

In this paper, we give the global dynamical behaviors of a reduced SIRS epidemic model with a nonlinear incidence rate @kI^pS^q. We first discuss the qualitative properties of the equilibria in the interior of the first quadrant, and study the bifurcations including saddle-node bifurcation, transcritical bifurcation, Hopf bifurcation and Bogdanov-Takens bifurcation. Then we consider equilibria at infinity, determining the number of orbits in exceptional directions for the global tendency. In this discussion, the unspecified degree p,q of polynomials and their high degeneracy prevent us from using the methods of blowing-up or normal sectors in some cases. We lastly discuss the existence and uniqueness of limit cycles.
A Parallel Progressive Refinement Image Rendering Algorithm on a Scalable Multithreaded VLSI Processor Array
Authors: S. K. Nandy, Ranjani Narayan, V. Visvanathan, P. Sadayappan, Prashant S. Chauhan
Venue: Proceedings of the 1993 International Conference on Parallel Processing - Volume 03 (1993)

In this paper we develop a multithreaded VLSI processor linear array architecture to render complex environments based on the radiosity approach. The processing elements are identical and multithreaded. They work in Single Program Multiple Data (SPMD) mode. A new algorithm to do the radiosity computations based on the progressive refinement approach[2] is proposed. Simulation results indicate that the architecture is latency tolerant and scalable. It is shown that a linear array of 128 uni-threaded processing elements sustains a throughput close to 0.4 million patches/sec.
Identifying Barriers to using Business-to-Employee (B2E) Portals: Some Lessons Learned from an Australian University
Authors: Md Mahbubur Rahim
Venue: Proceedings of the 40th Annual Hawaii International Conference on System Sciences (2007)

Business-to-Employee (B2E) portal is an e-business initiative which if successfully implemented assists organisations in delivering useful information and services to their disperse employees which in turn creates productive and satisfied workforce needed for today's fast pace environment. However, despite considerable business values, the acceptance of B2E portals by employees working within organisations is reported to be slow. It is not clearly known exactly what barriers organisations encounter and how those barriers affect the usage of B2E portals by employees. To address this gap in the literature, this paper presents the experience of a large Australian university in introducing an employee portal, reports a very disappointing usage of the portal by employees, and identifies a constellation of barriers which are then discussed using theoretical constructs drawn from diverse streams of related literature. Finally, the implications of the findings are discussed.
Multiple Quadratic Forms: A Case Study in the Design of Scalable Algorithms
Authors: Mu-Cheng Wang, Wayne G. Nation, James B. Armstrong, Howard Jay Siegel, Shin-Dug Kim, Mark A. Nichols, Michael Gherrity
Venue: Proceedings of the 1993 International Conference on Parallel Processing - Volume 03 (1993)

Parallel implementations of the computationally intensive task of solving multiple quadratic forms (MQFs) have been examined. Coupled and uncoupled parallel methods are investigated, where coupling relates to the degree of interaction among the processors. Also, the impact of partitioning a large MQF problem into smaller non-interacting subtasks is studied. Trade-offs among the implementations fo various data-size/machine-size ratios are categorized in terms of complex arithmetic operation counts, communicatino overhead, and memory storage requirements.