ppxscal/embedding_network huggingface dataset:
A Communication Support System for Older People with Dementia
Authors: Norman Alm, Richard Dye, Gary Gowans, Jim Campbell, Arlene Astell, Maggie Ellis
Venue: Computer (2007)

The CIRCA system lets those with short-term memory loss draw on reminiscences to converse with relatives and caregivers. The system, which software engineers, psychologists, and designers developed with caregiver input, features a touch screen that displays photos, music, video, text, and other materials to help those with dementia access long-term memory.
Hot embossing characteristics of PEEK compared to PC and PMMA
Authors: Y. Murakoshi, T. Shimizu, R. Maeda
Venue: Proceedings of the Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (2003)

Development of low cost manufacturing processes for the MEMS and the MOEMS is important for their commercialization. A micro hot embossing process is used to make optical and Bio devices with Polycarbonate (PC) and Polymethylmetacrylate (PMMA) materials. In this paper, outline of an optical switch with 8/spl times/8 mirrors is introduced and the optical switch used Polyetheretherketone (PEEK) sheet, which has high mechanical properties, high chemical resistance and high hydrolysis resistance at elevated temperature, is embossed with a developed micro hot embossing machine by using a mould made by electroforming. Embossing force and temperature have been changed up to 10 kN and 600 K respectively. After the embossing, the minimum thickness of the PEEK has changed from 300 um to 100 um. The shapes and sizes of replicated mirrors are evaluated and compared with the PC and the PMMA. Glass transition temperature (Tg) of the PEEK (416 K) is almost same as the PC (423 K) and higher than the PMMA (378 K). However, the mechanical strength of the PEEK at the elevated temperature is higher than the PC and the PMMA. Therefore the PEEK needs higher embossing force and temperature compared to the PC and the PMMA. But the PEEK is very easy to remove from the mould due to coefficient of linear thermal expansion at elevated temperature is higher than the PC and the PMMA.
Hybrid Maximal Matching for Input Buffered Crossbar Switches
Authors: Choudhury A. Al Sayeed, Dewan Tanvir Ahmed, Akbar Ghaffar Pour Rahbar
Venue: Proceedings of the Fifth Annual Conference on Communication Networks and Services Research (2007)

To alleviate the problems of network bottleneck in high speed networks, it is important to have faster switching and certainly efficient scheduling algorithms. Optical switches are becoming more popular because of their faster switching speeds and higher reliability as compared to their electronic counterpart. Suitable scheduling algorithms are needed to be developed that will improve the utilization of the switch bandwidth, as well as reduce the scheduling overhead. However, most of the present scheduling algorithms try to optimize either the switch bandwidth or the overhead. In this paper, we propose one new scheduling algorithm named as Hybrid Maximal Matching (HMM) that provides a perfect balance between these two performance criteria and proves itself suitable for large size optical switches. The proposed HMM algorithm is simple to implement and arrives with a complexity of at most O(N5) for an NxN input queued crossbar switch.
Repackaging signals, systems and circuits in the core ECE curriculum
Authors: T. P. Barnwell
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 04 (1999)

For several years, we have been teaching DSP as a first course in electrical and computer engineering at Georgia Tech. Such a dramatic rearrangement of the introductory material requires a new organization of topics and courses when teaching circuits and systems. In addition, the use of computer-enhanced course materials has a profound impact on the systems courses, which are quite mathematical and abstract in nature. This paper addresses some of the issues encountered when adopting a signal processing first approach.
Recognizing Assembly Tasks Through Human Demonstration
Authors: Jun Takamatsu, Koichi Ogawara, Hiroshi Kimura, Katsushi Ikeuchi
Venue: International Journal of Robotics Research (2007)

As one of the methods for reducing the work of programming, the Learning-from-Observation (LFO) paradigm has been heavily promoted. This paradigm requires the programmer only to perform a task in front of a robot and does not require expertise. In this paper, the LFO paradigm is applied to assembly tasks by two rigid polyhedral objects. A method is proposed for recognizing these tasks as a sequence of movement primitives from noise-contaminated data obtained by a conventional 6 degree-of-freedom (DOF) object-tracking system. The system is implemented on a robot with a real-time stereo vision system and dual arms with dexterous hands, and its effectiveness is demonstrated.
Managing E-Mail Overload: Solutions and Future Challenges
Authors: David Schuff, Ozgur Turetken, John D'Arcy, David Croson
Venue: Computer (2007)

With proper application of automatic filtering, clustering, and new user interface metaphors,e-mail can once again become an effective knowledge management tool rather than asource of information overload.
A collaboration specification language
Authors: Du Li, Richard R. Muntz
Venue: Proceedings of the 2nd conference on Conference on Domain-Specific Languages - Volume 2 (1999)

COCA (Collaborative Objects Coordination Architecture) was proposed as a novel means to model and support collaborations over the Internet. Our approach separates coordination policies from user interfaces and the policies are specified in a logic-based language. Over the past year, both the collaboration model and the specification language have been substantially refined and evaluated through our experience in building real-life collaboration systems. This paper presents the design of the specification language and illustrates the main ideas with a few simple design examples. Semantics, implementation, runtime support, and applications are also covered but not as the focus of this paper.
An Orchestrator for Dynamic Interconnection of Software Components
Authors: Marco Antonio Barbosa, Luís Soares Barbosa
Venue: Electronic Notes in Theoretical Computer Science (ENTCS) (2007)

Composing and orchestrating software components is a fundamental concern in modern software engineering. This paper addresses the possibility of such orchestration being dynamic, in the sense that the structure of component's interconnection patterns can change at run-time. The envisaged approach extends previous work by the authors on the use of coalgebraic models for the specification of software connectors.
A 2.4 kbit/s MELP coder candidate for the new U.S. Federal Standard
Authors: A. McCree, Kwan Truong, E. B. George, T. P. Barnwell, V. Viswanathan
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1996. on Conference Proceedings., 1996 IEEE International Conference - Volume 01 (1996)

This paper describes our enhanced mixed excitation linear prediction (MELP) speech coder which is a candidate for the new U.S. Federal Standard at 2.4 kbits/s. The new coder is based on the MELP model, and it uses a number of enhancements as well as efficient quantization algorithms to improve performance while maintaining a low bit rate. In addition, the coder has been optimized for performance in acoustic background noise and in channel errors, as well as for efficient real-time implementation. Listening tests confirm that the enhanced 2.4 kbit/s MELP coder performs as well as the higher bit rate 4.8 kbit/s FS1016 CELP standard.
Architecture of a Network Monitoring Element
Authors: Augusto Ciuffoletti, Michalis Polychronakis
Venue: Proceedings of the 15th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (2006)

The scalability of a network monitoring system, a vital component of a Grid, is challenging. We propose a solution based on demand driven monitoring sessions that use passive network monitoring techniques on a domain oriented overlay network. Related aspects of security and group membership maintenance are also considered.
Surveillance Event Interpretation Using Generalized Stochastic Petri Nets
Authors: Artyom Borzin, Ehud Rivlin, Michael Rudzsky
Venue: Proceedings of the Eight International Workshop on Image Analysis for Multimedia Interactive Services (2007)

In this paper we present video event representation and recognition approaches that are based on Generalized Stochastic Petri Nets (GSPN). Along with the typical modeling capabilities of GSPN for video recognition, we propose to integrate the Petri net marking analysis for better scene understanding. This work focuses on behavior modeling and uses the results of an external module for object detection, tracking and classification. The proposed approach is evaluated using the developed surveillance system which can recognize events from videos and give a textual expression for the detected behavior. The experimental results illustrate the ability of the system to create complex spatiotemporal relations and to recognize the behavior of one or multiple objects in various video scenes.
Geometry-driven petri nets and a method for modelling mechatronic control systems
Authors: Jochen Stier
Venue:  (2006)

The development process of mechatronic control systems often relies on physical prototypes to test the interactions between the control software and mechanical components. However, the logistics of synchronizing a concurrent development process and the risks of integrating only partially completed sub-systems often limits effective prototyping. The consequent lack of feedback can lead to overly complex and unreliable systems which may have to undergo expensive re-designs.The interactions between mechanical systems and control software can also be recreated artificially by combining a hybrid modelling language with computer graphics technology. A dynamic 3D environment can generate sensor telemetry for input to a control system, which in turn alters the state of the environment through virtual actuators. This kind of simulation allows engineers to explore a larger design space early during the development process without committing significant resources to physical prototypes.This dissertation introduces a method for simulating mechatronic systems using Petri Nets and Scene Trees. The following chapters formally define the modelling language and illustrate the software architecture and user interface of a novel simulation development environment. The research is validated through qualitative reasoning and by demonstrating a simulation that detects design flaws in a mechatronic system which may have otherwise lead to expensive redesigns in the physical system.
A case for engineering edutainment in the 21st century
Authors: M. Usrey
Venue: Proceedings of the 30th Annual Frontiers in Education - Volume 02 (2000)

The economic future of the United States depends upon our continued leadership in the development of high technology products and services. Development of such products requires a robust engineering workforce. Unfortunately, current economic, market, employment, demographic, and education trends suggest erosion of America's global engineering leadership. A definition of engineering edutainment is developed. Reasons why some educators are dismayed by the concept of edutainment are discussed. A call is made for engineering edutainment that spans almost all U.S. demographic groups from cradle to grave. This holistic approach is offered as a critical underpinning for the foundation of the engineering workforce of the next century. It is put forth that the holistic approach is best accomplished through alliances including engineering faculty, K-12 educators, and practitioners from industry. Finally, guidelines to avoid the pitfalls of edutainment are provided. 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
Smart-Furoshiki: RFID-embedded Cloth enabling Multiple Area Detection
Authors: Masayuki Iwai, Ryo Ohsawa, Takuya Imaeda, Kei Suzuki, Hideyuki Tokuda
Venue: Proceedings of the 27th International Conference on Distributed Computing Systems Workshops (2007)

Recently, there are many research for tangible objects which enables to support users' everyday life. Due to the high price of each sensor-attached devices themselves, we hesitate to attach such devices to any kinds of cheaper objects. To give an actual example, documents using at a weekly meeting is not worth to attach sensor-embedded wireless device which costs more than 15$. Even worth, dry cell batteries of sensor-embedded devices should despoil the earth environment to no small extent. Therefore, the low-priced system to support users' daily life without battery is needed. To satisfy above needs, we will propose a novel hardware platform, using inexpensive RFID tags and flexible cloth, which can detect physical desktop objects, called Smart-Furoshiki. This paper describes details of Smart-Furoshiki and its applications.
SBOX: put CGI scripts in a box
Authors: Lincoln D. Stein
Venue: Proceedings of the annual conference on USENIX Annual Technical Conference (1999)

sbox is a CGI wrapper script that allows Web sites to safely grant CGI authoring privileges to untrusted or naive authors. The script increases security in several ways. It changes the process privileges of CGI scripts to match their owners, preventing one script from interfering with another's data files or operations. It establishes configurable ceilings on script resource usage, avoiding intentional or unintentional denial of service attacks. Most importantly, sbox can also be used to run untrusted CGI scripts within a chroot()-ed directory, thereby preventing CGI scripts from accessing sensitive portions of the file system. sbox can be used and redistributed freely. The complete package is available for download at http://stein.cshl.org/WWW/software/sbox/
A new automated delineation method for SPECT lung scans using adaptive dual-exponential thresholding
Authors: Alex Wang, Hong Yan
Venue: International Journal of Imaging Systems and Technology (2007)

An accurate method for delineating lung contours in single photon emission computed tomography (SPECT) is critical to respiratory studies such as pulmonary embolism (PE) and respiratory aerosol deposition. Current delineation methods are not adaptive in nature and may require a priori information on lung volumes. We have developed a dual-exponential thresholding method that solely requires SPECT scans, and is fast, accurate, and adaptive in nature. A dataset consisted of 90 patients was studied retrospectively. While most were suspected of PE, other pulmonary disorders were also present. SPECT ventilation scans were obtained after inhalation of &sim;40 MBq of 99mTc-Technegas. Examination of the corresponding natural logarithmically transformed histograms revealed dual exponential functions like pattern. Adaptive thresholds were found as the intercept between the two exponential functions. 350 Monte Carlo simulations representative of normally-ventilated scans with varying counts were used to quantitatively measure and evaluate the method. Our method correctly delineated lung volumes to above 97&percnt; agreement for 310 of the 350 Monte Carlo simulations with maximum count values greater than or equal to 31. The 40 low-count simulations were included purely as extreme cases. For real patient scenario, an experienced physician was called upon to visually delineate a sample of 50 actual patient scans, and these delineated lung volumes were used as gold standard and compared with those delineated using our method. Our results had an average of 96&percnt; agreement. &copy; 2007 Wiley Periodicals, Inc. Int J Imaging Syst Technol, 17, 22&ndash;27, 2007
f-Vectors of Minkowski Additions of Convex Polytopes
Authors: Komei Fukuda, Christophe Weibel
Venue: Discrete Computational Geometry (2007)

The objective of this paper is to present two types of results on Minkowski sums of convex polytopes. The first is about a special class of polytopes we call perfectly centered and the combinatorial properties of the Minkowski sum with their own dual. In particular, we have a characterization of the face lattice of the sum in terms of the face lattice of a given perfectly centered polytope. Exact face counting formulas are then obtained for perfectly centered simplices and hypercubes. The second type of results concerns tight upper bounds for the f-vectors of Minkowski sums of several polytopes.
An information-theoretic approach to the design of robust digital watermarking systems
Authors: B. Chen
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 04 (1999)

A variety of emerging applications require the design of systems for embedding one signal within another signal. We describe a new class of embedding methods called quantization index modulation (QIM) and develop a realization termed coded dither modulation in which the embedded information modulates the dither signal of a dithered quantizer. We also develop a framework in which one can analyze the performance trade-offs among robustness, distortion, and embedding rate, and we show that QIM systems have considerable performance advantages over previously proposed spread-spectrum and low-bit modulation systems.
A New Iterative Method to Improve Network Coordinates-Based Internet Distance Estimation
Authors: Peter Merz, Matthias Priebe
Venue: Proceedings of the Sixth International Symposium on Parallel and Distributed Computing (2007)

Network coordinates facilitate delay estimation in largescale networks. In particular, they support the creation of Peer-to-Peer-based Desktop Grid overlay structures. Landmark-based approaches to computing such coordinates have gained widespread acceptance in recent years. Several of these approaches produce coordinates by solving sequences of nonlinear unconstrained optimization problems. Apparently, Simplex Downhill has been the preferred method for solving such problems in the network coordinates context. In this paper, we propose a replacement for this algorithm. Our method works more accurately than Simplex Downhill and refrains from imposing additional requirements on the objective function.
Sequential Monte Carlo for model selection and estimation of neural networks
Authors: C. Andrieu
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 06 (2000)

We address the complex problem of sequential Bayesian learning and model selection for neural networks. This problem does not usually admit any type of closed-form analytical solution and, as a result, one has to resort to numerical methods. We propose here an original sequential simulation-based strategy to perform the necessary computations. It combines sequential importance sampling, a selection procedure, variance reduction techniques and reversible jump Markov chain Monte Carlo (MCMC) moves. We demonstrate the effectiveness of the method by applying it to radial basis function networks. The approach can be easily extended to other interesting on-line model selection problems.
Ontology-Based Agent Community for Information Integration System in Semantic Web
Authors: Pa Pa Nyunt, Ni Lar Thein
Venue: Proceedings of the First Asia International Conference on Modelling & Simulation (2007)

The phenomenal growth in recent years of distributed, network, and dynamic information sources remains a significant challenge. Only ontology based approach to this problem resolved heterogeneity, if all the data owners agree to use a common ontology. However, if information is sought from a subset of the participating data sources, there may be concepts common to the subset that are not included in the full common ontology, and therefore are unavailable for information sharing. Therefore, a novel ontology-based agent community approach is developed for agents, which generates the largest intersection of shared data across any selected subset of data sources. This paper proposes ontology-based agent community approach for information integration system that demonstrates a flexible and dynamic approach for the fusion of data across combinations of participating heterogeneous data sources to maximize information sharing by dynamically generating common ontology over the data sources of interest.
Voronoi Diagrams for Oriented Spheres
Authors: F. Aurenhammer, J. Wallner, M. Peternell, H. Pottmann
Venue: Proceedings of the 4th International Symposium on Voronoi Diagrams in Science and Engineering (2007)

We consider finite sets of oriented spheres in R^k-1 and, by interpreting such spheres as points in R^k, study the Voronoi diagrams they induce for several variants of distance between spheres. We give bounds on the combinatorial complexity of these diagrams in R^2 and R^3 and derive properties useful for constructing them. Our results are motivated by applications to special relativity theory.
Speaker recognizability testing for voice coders
Authors: A. Schmidt-Nielsen
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1996. on Conference Proceedings., 1996 IEEE International Conference - Volume 02 (1996)

Users of low data rate voice coders now demand good speaker recognition in addition to quality and intelligibility. Speaker recognizability was one of the selection criteria for the DoD Digital Voice Processor Consortium in selecting a new standard 2400 bps algorithm. We have developed a speaker recognition test based on same-different judgments for pairs of sentences spoken by 10 male and 10 female speakers. Preliminary experiments showed that the sensitivity of the test is similar to that of currently used acceptability and intelligibility tests. Male and female talkers produced somewhat different rank orderings, but averaging over males/females gave results that "make sense" when compared with intelligibility and acceptability scores for the same coders. The results of these experiments determined the speaker recognition test procedures that were used in the 2400 bps coder final selection process.
Automating component-based system assembly
Authors: Panagiotis Manolios, Daron Vroon, Gayatri Subramanian
Venue: Proceedings of the 2007 international symposium on Software testing and analysis (2007)

One of the major challenges in the development of large component-based software systems is the system assembly problem: from a sea of available components, which should be selected and how should they be connected, integrated, and assembled so that the overall system requirements are satisfied? We present a powerful framework for automatically solving the system assembly problem directly from system requirements. Our framework includes an expressive language for declaratively describing system-level requirements, including component interfaces and dependencies, resource requirements, safety properties, objective functions, and various types of constraints. We show how to automatically solve system assembly problems using verification technology that takes advantage of current advances in Boolean satisfiability methods. We have implemented our techniques in the CoBaSA tool (Component-Based System Assembly), and we have successfully applied it to several large-scale industrial examples.