ppxscal/embedding_network huggingface dataset:
A journal system for field experience in teacher education
Authors: James M. Laffey, Dale Musser
Venue: Proceedings of the 1996 international conference on Learning sciences (1996)

The College of Education, University of Missouri-Columbia is developing and testing a suite of tools that utilize the Internet and work as a system to support learning from field experiences. These tools are built to support pre-service teachers, field-based mentors and college faculty as they collaborate, engage in practice, document their efforts, share their experiences, and assess outcomes. The journal system enables the preservice teacher to record their observations and reflections about experiences, maintain these records on a central server, and organize the records to meet a variety of needs. The software also facilitates sharing these records with faculty, mentor teachers and other preservice teachers. In addition the software provides access to a variety of resources for enhancing experiences and solving problems. Among the resource types are web pages, electronic messaging and conferencing. The field test version of the journal system will implement a Macintosh client and Silicon Graphics Indy servers. The clients and servers communicate over the internet using TCP/IP connections. Anyone who has access to the internet via a direct connection or a SLIP or PPP connection is able to participate. In addition the software supports the creation and editing of journal entries off-line for later upload when a connection is available.
R-LIM: an Affordable Library Search System Based on RFID
Authors: Jung-Wook Choi, Dong-Ik Oh, Il-Yeol Song
Venue: Proceedings of the 2006 International Conference on Hybrid Information Technology - Volume 01 (2006)

With a large volume of materials today's libraries carry, locating the exact position of materials is timeconsuming. This is not true just for poorly managed libraries, but also for well maintained libraries. In the former case, the problem is rather serious. Even though a material is somewhere in the library, if we cannot locate the material, the fundamental roles of the library may be challenged. In the latter case, one still needs to go through a tedious shelf searching process to locate the material. In this study we propose an affordable RFID based library management system named R-LIM which eases the process of locating books in the library. In an earlier version of R-LIM, expensive RFID antennas had to be placed on every shelf to acquire location information. In this new version, we replace the antennas with inexpensive tags to make the system more affordable. By associating book-tag IDs with shelf-tag IDs through periodic tag scanning, we can identify the exact location of the book we are searching for. This paper describes the localization algorithm of R-LIM, and explains how it can be integrated with other parts of the system.
Two-dimensional cellular automata and the analysis of correlated time series
Authors: Luís O. Rigo,  Jr., Valmir C. Barbosa
Venue: Pattern Recognition Letters (2006)

Correlated time series are time series that, by virtue of the underlying process to which they refer, are expected to influence each other strongly. We introduce a novel approach to handle such time series, one that models their interaction as a two-dimensional cellular automaton and therefore allows them to be treated as a single entity. We apply our approach to the problems of filling gaps and predicting values in rainfall time series. Computational results show that the new approach compares favorably to Kalman smoothing and filtering.
Introducing a UML model for faster-than-real-time simulation
Authors: Dimosthenis Anagnostopoulos, George-Dimitrios Kapos, Vassilis Dalakas, Mara Nikolaidou
Venue: Proceedings of the 37th conference on Winter simulation (2005)

Faster-than-real-time simulation (FRTS) is used when attempting to reach conclusions for the near future. FRTS experimentation proves to be the most demanding phase for conducting FRTS, since it requires concurrent monitoring and management of both the real system and the simulation experiments. Having previously introduced a conceptual methodology and specification for conducting FRTS experiments, we now propose an implementation framework, based on the Real Time Unified Modeling Language (RT-UML). The derived RT-UML model includes specific timing attributes and is independent of the application examined via FRTS. Thus, implementation of FRTS program modules can be analyzed and realized, following the guidelines of this model, ensuring the reliability of the results within predetermined time frames. A pilot application regarding FRTS implementation based on the proposed RT-UML model and related experience is also discussed in the paper.
E-mail, terrorism, and the right to privacy
Authors: Stephen Coleman
Venue: Ethics and Information Technology (2006)

This paper discusses privacy and the monitoring of e-mail in the context of the international nature of the modern world. Its three main aims are: (1) to highlight the problems involved in discussing an essentially philosophical question within a legal framework, and thus to show that providing purely legal answers to an ethical question is an inadequate approach to the problem of privacy on the Internet; (2) to discuss and define what privacy in the medium of the Internet actually is; and (3) to apply a globally acceptable ethical approach of international human rights to the problem of privacy on the Internet, and thus to answer the question of what is and is not morally permissible in this area, especially in light of recent heightened concerns about terrorist activities. It concludes that the monitoring of e-mail is, at least in the vast majority of cases, an unjustified infringement of the right to privacy, even if this monitoring is only aimed at preventing the commission of acts of terrorism.
Segmentation of Neighboring Structures by Modeling Their Interaction
Authors: Pingkun Yan, Mubarak Shah
Venue: Proceedings of the 2006 Conference on Computer Vision and Pattern Recognition Workshop (2006)

The similarity of pixel intensities, presence of noise, existence of partial volume effect and so on make segmentation of neighboring structures in medical image a challenging task. In this paper, we present a novel approach for segmenting multiple neighboring organs simultaneously by modeling interaction between them. Our method is motivated by the observation that radiologists mark ambiguous boundaries by considering all surrounding anatomic structures. In the proposed interaction model, the connectedness, competition and repulsion between organs are analyzed. By quantitatively defining these interaction components, an energy functional is formulated and structures are obtained by minimizing the energy. An energy minimization algorithm based on multiway graph cuts is proposed, which obtains an approximation within a known factor of the global minimum. The promising experimental results on various medical images demonstrate the performance of our segmentation algorithm.
Hybrid Stereo Configurations Through a Cylindrical Sensor Calibration
Authors: L. Smadja, R. Benosman, J. Devars
Venue: Machine Vision and Applications (2006)

This paper deals with the calibration of a cylindric omnidirectional imaging system, based on a rotating 2,048 pixels linear camera which provides high definition panoramas. The two-step algorithm relies on line-segment projections as calibration features, which are sinusoidal curves. We proposed a cylindrical line detection, based on the dual principle of the Hough transform. Moreover, the use of Plucker coordinates introduces some new characteristics in the calibration process. This kind of formalism allow a linearization of the cylindrical projection, which is non-linear in the usual way. Results obtained from this first step are used to evaluate one of the intrinsics, the other one being determined by a linear criterion minimization in the dual space, i.e. the sines magnitudes space.
Exploring the Critical Success Factors for Mobile Commerce
Authors: Haiqi Feng, Tamara Hoegler, Wolffried Stucky
Venue: Proceedings of the International Conference on Mobile Business (2006)

The main purpose of this paper is to explore and identify the key factors for successfully implementing mobile commerce in businesses. We first provide an end-user perspective of mobile commerce and then a value-add-based acceptance model is proposed based on the analysis. A set of factors, which is deemed to positively affect the success, was identified, and a theoretical framework of CSF is presented.
The Challenges for High Performance Embedded Systems
Authors: Marc Duranton
Venue: Proceedings of the 9th EUROMICRO Conference on Digital System Design (2006)

Consumer electronics devices traditionally rely on non-programmable circuits for their "streaming" part. Recent demands on flexibility moved the balance towards the use of programmable components. However, there is a major gap between the current programmable processors and the actual requirements of applications. To bridge this gap, it is necessary use parallel architectures consisting of multiple, programmable compute blocks, specifically designed for efficient processing of data streams. Programming those architectures poses major challenges and requires appropriate tools. Managing the ever-increasing complexity of those embedded systems is certainly one of the most important challenges beside power consumption. Complexity will make systems unreliable and unpredictable. The new technology nodes (65nm, and below) will also bring their own additional challenges: the global interconnect delay that does not scale, the predominant leakage current and the increasing variability of components.
Efficient, ROM-less DDFS using non-linear interpolation and non-linear DAC
Authors: A. L. Mcewan, S. Collins
Venue: Analog Integrated Circuits and Signal Processing (2006)

A non-linear interpolation based ROM-less Direct Digital Frequency Synthesisiser (DDFS) is more efficient than previous systems as each current cell in a non-linear DAC is used more effectively. This was achieved by forming an analogue voltage from a small linear DAC addressed by phase bits that are usually discarded. The analogue voltage was connected to a selected current source in a thermometer decoded non-linear DAC to allow non-linear interpolation between the conventional, phase limited output levels. By increasing the number of phase bits the spurious free dynamic range (SFDR) was improved without increasing the size of the non-linear DAC. Modelling and simulation of the non-linear response of the differential switch based current cell revealed suitable parameters. The architecture of 64 current cells used a modified thermometer decoder and three-state switch in each current cell. Simulation and testing of 10 sample circuits demonstrated a robust DDFS with SFDR better than ¿60 dBc and suitable for use in a wide range of instrumentation systems.
Actual problems of beam physics computing
Authors: S. N. Andrianov
Venue: Proceedings of the 2003 International Conference on Physics and Control - Volume 3 (2003)

This report is devoted to discussion actual problems of current status in beam physics computing and some solution paths. All present, approaches can be divided into two different types: analytical (theoretical) and numerical simulation. The first type is based on theoretical investigations for some approximation models without use numerical simulation actively. The second, on the numerical simulation of some more complete models using computer systems including supercomputers and computational clusters. In the report, some realization paths of this formulated program are discussed. We hope that it gives effective and adequate instruments for further investigation in beam physics. 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
MPTrain: a mobile, music and physiology-based personal trainer
Authors: Nuria Oliver, Fernando Flores-Mangas
Venue: Proceedings of the 8th conference on Human-computer interaction with mobile devices and services (2006)

We present MPTrain, a mobile phone based system that takes advantage of the influence of music in exercise performance, enabling users to more easily achieve their exercise goals. MPTrain is designed as a mobile and personal system (hardware and software) that users wear while exercising (walking, jogging or running). MPTrain's hardware includes a set of physiological sensors wirelessly connected to a mobile phone carried by the user. MPTrain's software allows the user to enter a desired exercise pattern (in terms of desired heart-rate over time) and assists the user in achieving his/her exercising goals by: (1) constantly monitoring the user's physiology (heart-rate in number of beats per minute) and movement (speed in number of steps per minute); and (2) selecting and playing music with specific features that will encourage the user to speed up, slow down or keep the pace to be on track with his/her exercise goals.We describe the hardware and software components of the MPTrain system, and present some preliminary results when using MPTrain while jogging.
SNiPer-HD: improved genotype calling accuracy by an expectation-maximization algorithm for high-density SNP arrays
Authors: Jianping Hua, David W. Craig, Marcel Brun, Jennifer Webster, Victoria Zismann, Waibhav Tembe, Keta Joshipura, Matthew J. Huentelman, Edward R. Dougherty, Dietrich A. Stephan
Venue: Bioinformatics (2007)

Motivation: The technology to genotype single nucleotide polymorphisms (SNPs) at extremely high densities provides for hypothesis-free genome-wide scans for common polymorphisms associated with complex disease. However, we find that some errors introduced by commonly employed genotyping algorithms may lead to inflation of false associations between markers and phenotype. Results: We have developed a novel SNP genotype calling program, SNiPer-High Density (SNiPer-HD), for highly accurate genotype calling across hundreds of thousands of SNPs. The program employs an expectation-maximization (EM) algorithm with parameters based on a training sample set. The algorithm choice allows for highly accurate genotyping for most SNPs. Also, we introduce a quality control metric for each assayed SNP, such that poor-behaving SNPs can be filtered using a metric correlating to genotype class separation in the calling algorithm. SNiPer-HD is superior to the standard dynamic modeling algorithm and is complementary and non-redundant to other algorithms, such as BRLMM. Implementing multiple algorithms together may provide highly accurate genotyping calls, without inflation of false positives due to systematically miss-called SNPs. A reliable and accurate set of SNP genotypes for increasingly dense panels will eliminate some false association signals and false negative signals, allowing for rapid identification of disease susceptibility loci for complex traits. Availability: SNiPer-HD is available at TGen's website: http://www.tgen.org/neurogenomics/data. Contact: dstephan@tgen.org
Meaningful contexts for mathematical learning: the potential of game making activities
Authors: Yasmin B. Kafai, Cynthia Carter Ching
Venue: Proceedings of the 1996 international conference on Learning sciences (1996)

There is a need for educational researchers to find connections between formal education and the many other activities and contexts which inhabit the "real world" of children. While there has been some research on the potential of game playing for learning, the benefits of game making activities have not been examined. In this paper we present the analysis of a design session in which four elementary school-students designed computer games to teach fractions to other students. We analyzed the design interactions in a microgenetic fashion to identify the progression of students' mathematical thinking. In addition, we paid close attention to the contribution of students' social interactions to the increasing sophistication of fraction representations in the game context. We argue in this paper that not only is the context of game-making itself relevant to children's "real world," but that it also provides opportunities for children to explore mathematical ideas within many other "real world" scenes and situations as they design their games.
A SME-friendly framework for the provision of mobile services
Authors: Michael Decker, Gunther Schiefer, Rebecca Bulander
Venue: Proceedings of the International Conference on Mobile Business (2006)

The development and operation of value-added data services for mobile terminals still requires a lot of time, manpower, highly specialized know-how about telecommunication networks and financial resources, so for small and medium-sized enterprises (SME) it is difficult or even impossible to set up such services for their own use or for their customers. Since SME play an important economic and thus social role, often contribute to innovation and many of them have highly specialized know-how this is an untenable situation. The aim of the intended research-project MODIFRAME is therefore to develop and evaluate a technical framework which provides the complete infrastructure needed by SME to develop and operate mobile services.
An adaptive time-frequency representation using a cone-shaped kernel
Authors: R. N. Czerwinski, D. L. Jones
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1993. ICASSP-93 Vol 4., 1993 IEEE International Conference on - Volume 04 (1993)

Cone-kernel time-frequency distributions (CKDs) preserve the outer hull of signal time support in the time-frequency plane, and appear promising in many applications. The authors present a technique for adaptively optimizing the performance of the cone-kernel distribution by varying the cone length in response to changing signal structure. The result is a time-varying spectral estimate that can track signal changes quickly in time, while still allowing the use of windows long enough to give good frequency resolution. The adaptive CKD generally provides much better performance than fixed-length CKDs, and requires only slightly more computation than a fixed-kernel distribution.
Mobile Computing instead of paper based documentation in German Rheumatology
Authors: Jutta G. Richter, Mirco Nixdorf, Tobias Koch, Matthias Schneider, Arnd Becker, Robert Monser
Venue: Proceedings of the International Conference on Mobile Business (2006)

Our objective was the integration of mobile computing in our web based documentation software DocuMed.rh to improve process organisation and quality of care. We focused on self-administered standardized patient questionnaires which are implemented in DocuMed.rh. Validity of online obtained data and the capability of disabled patients to handle a Tablet PC were assigned. On a regularly scheduled visit 117 patients completed prearranged sets of self-administered questionnaires as a paper-pencil and an electronic version using a Tablet PC in a cross-over design. Patients experiences with the Tablet PC and history of computer/internet use were assessed. Positive ethics approval and signed patients consents were obtained. Though only 65% of the patients reported computer experiences no major problems with the Tablet PC occurred. Scores obtained by direct data entry on the Tablet PC did not differ significantly from the scores obtained by the paper-pencil questionnaires in the complete group and in subgroups.
Modality-Specific Deterioration in Naming Verbs in Nonfluent Primary Progressive Aphasia
Authors: Argye E. Hillis, Elizabeth Tuffiash, Alfonso Caramazza
Venue: Journal of Cognitive Neuroscience (2002)

A longitudinal study of oral and written naming and comprehension of nouns and verbs in an individual (M. M. L.) with nonfluent primary progressive aphasia (PPA) is reported. M. M. L. showed progressive deterioration of oral naming of verbs well before deterioration of written naming of verbs and before deterioration of oral or written naming of nouns. Her comprehension of both nouns and verbs remained intact, at least relative to oral naming of verbs. Her performance is compared to that of two other individuals with nonfluent PPA, who were tested at two time points. These patients showed similar patterns with respect to grammatical word class (verbs more impaired than nouns) and modality (spoken production more impaired than written production), but somewhat different courses of deterioration. The modality-specific nature of the observed verb production deficits rules out a semantic locus for the grammatical class effects. The results provide a new source of evidence for the hypothesis that there are distinct neural mechanisms for accessing lexical representations of nouns and verbs in language production.
Optimistically Terminating Consensus: All Asynchronous Consensus Protocols in One Framework
Authors: Piotr Zielinski
Venue: Proceedings of the Proceedings of The Fifth International Symposium on Parallel and Distributed Computing (2006)

Optimistically Terminating Consensus (OTC) is a variant of Consensus that decides if all correct processes propose the same value. It is surprisingly easy to implement: processes broadcast their proposals and decide if sufficiently many processes report the same proposal. This paper shows an OTC-based framework which can reconstruct all major asynchronous Consensus algorithms, even in Byzantine settings, with no overhead in latency or the required number of processes. This result does not only deepen our understanding of Consensus, but also reduces the problem of designing new, modular distributed agreement protocols to choosing the parameters of OTC.
The Layout Consistent Random Field for Recognizing and Segmenting Partially Occluded Objects
Authors: John Winn, Jamie Shotton
Venue: Proceedings of the 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 1 (2006)

This paper addresses the problem of detecting and segmenting partially occluded objects of a known category. We first define a part labelling which densely covers the object. Our Layout Consistent Random Field (LayoutCRF) model then imposes asymmetric local spatial constraints on these labels to ensure the consistent layout of parts whilst allowing for object deformation. Arbitrary occlusions of the object are handled by avoiding the assumption that the whole object is visible. The resulting system is both efficient to train and to apply to novel images, due to a novel annealed layout-consistent expansion move algorithm paired with a randomised decision tree classifier. We apply our technique to images of cars and faces and demonstrate state-of-the-art detection and segmentation performance even in the presence of partial occlusion.
A new approach of data hiding within speech based on Hash and Hilbert Transform
Authors: Deng Lixin
Venue: Proceedings of the International Conference on Systems and Networks Communication (2006)

In this paper, we present an approach for data hiding within speech signals based on Hash and Hilbert Transform (HT). The secret data is firstly pre-processed by Hash to enhance its security. Then, exploiting the orthogonality of HT and insensitivity of human perception to the phase of speech, we embed processed secret data into a speech signal by using the HT. We propose in this paper both blind and non-blind methods to extract embedded data. Experiment results have shown that the proposed scheme demonstrates transparent, secure and robust data hiding performances.