ppxscal/embedding_network huggingface dataset:
Parameterized Duration Mmodeling for Switching Linear Dynamic Systems
Authors: Sang Min Oh, James M. Rehg, Frank Dellaert
Venue: Proceedings of the 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 2 (2006)

We introduce an extension of switching linear dynamic systems (SLDS) with parameterized duration modeling capabilities. The proposed model allows arbitrary duration models and overcomes the limitation of a geometric distribution induced in standard SLDSs. By incorporating a duration model which reflects the data more closely, the resulting model provides reliable inference results which are robust against observation noise. Moreover, existing inference algorithms for SLDSs can be adopted with only modest additional effort in most cases where an SLDS model can be applied. In addition, we observe the fact that the duration models would vary across data sequences in certain domains, which complicates learning and inference tasks. Such variability in duration is overcome by introducing parameterized duration models. The experimental results on honeybee dance decoding tasks demonstrate the robust inference capabilities of the proposed model.
On some tridiagonal k-Toeplitz matrices: algebraic and analytical aspects. applications
Authors: R. Álvarez-Nodarse, J. Petronilho, N. R. Quintero
Venue: Journal of Computational and Applied Mathematics (2005)

In this paper, we use the analytic theory for 2 and 3-Toeplitz matrices to obtain the explicit expressions for the eigenvalues, eigenvectors and the spectral measure associated to the corresponding infinite matrices. As an application we consider two solvable models related with the so-called chain model. Some numerical experiments are also included.
Operator-paced assembly line simulation
Authors: Marvin S. Seppanen
Venue: Proceedings of the 37th conference on Winter simulation (2005)

This paper describes an Arena-based operator-paced assembly line simulation model. Besides the normal flow of assembly units between work cells, the model considers both the movement of operators between cells and intermittent duties, such as equipment repair and material stocking. Simulation results are presented for a 4-cell test case.
Objective Function Analysis for QoS-AwareWeb Service Composition
Authors: Tao ZHOU, Deren CHEN, Xiaolin ZHENG
Venue: Proceedings of the IEEE International Conference on e-Business Engineering (2006)

Web services are provided with different QoS, so they should be selected dynamically on composition. Most of the time, optimized selection is achieved by minimizing a certain objective function. Based on systematical analysis of objective functions, this paper emphasizes that objective function should always be based on user requirements. This paper then introduces four basic objective function styles. At last, it introduces context concept into objective function.
Commercial Experience with Agent-Oriented Software Engineering
Authors: D. A. W. Clarke
Venue: Proceedings of the IEEE/WIC/ACM international conference on Intelligent Agent Technology (2006)

Although there have been a number of attempts at defining agent-oriented design methodologies, none of these have been proven successful in industrial use. Over a two year period, the author was involved in a variety of commercial projects and proofs-of-concept using a product that offered an enterprise-quality implementation of BDI-agent principles. During that time, a methodology was developed to make the most effective use of the product. This paper describes the essential features of the methodology and records the results of its successful use in five selected projects in very different application domains.
The Semantic Exchange Method and Architecture on the Heterogeneous Product Information in the Virtual Organization
Authors: Chengfeng Jian, Meiyu Zhang
Venue: Proceedings of the 2006 IEEE/WIC/ACM international conference on Web Intelligence and Intelligent Agent Technology (2006)

Aimed at the uniform classification of product information including STEP and SGML, the exchange method and architecture on the OWL/XML-based product information are put forward at first. And then build the semantic association by the two description layers: the XML template for syntax layer and the OWL template for semantic layer. At last, with the process of the system realization method, it can solve the question of the heterogeneous workspace, system and information, and meet the requirement of dynamic and agility.
Models and Methods for Discovering Automatable Activity Segments in a Service--Oriented Environment
Authors: C. V. Ramamoorthy
Venue: Proceedings of the 18th IEEE International Conference on Tools with Artificial Intelligence (2006)

Although computers were invented barely fifty years ago, their enormous value and impact on society has already relegated much of computing discipline into a commodity status. While the pedagogical theories of computing have failed to keep pace with the rapid technological advances, of immense importance, a systematic approach to achieving reliable systems design despite complexity compounding on virtually daily basis, is sorely lacking. The immense array of sub-disciplines of computer science including digital hardware, computer architecture, programming languages, databases, networking, artificial intelligence, software engineering, etc. are rapidly coalescing into a new sub-discipline, labeled as the "service industry."
Visualization of uncertainty in context aware mobile applications
Authors: Enrico Rukzio, John Hamard, Chie Noda, Alexander De Luca
Venue: Proceedings of the 8th conference on Human-computer interaction with mobile devices and services (2006)

Context-aware mobile applications and systems have been extensively explored in the last decade and in the last few years we already saw promising products on the market. Most of these applications assume that context data is highly accurate. But in practice this information is often unreliable, especially when gathered from sensors or external sources. Previous research has argued that the system usability can be improved by displaying the uncertainty to the user. The research presented in this paper shows that it is not always an advantage to show the confidence of the context-aware application to the user. We developed a system for automatic form filling on mobile devices which fills in any web form with user data stored on the mobile device. The used algorithm generates rules which indicate with which probability which input field of a form should be filled in with which value. Based on this we developed two versions of our system. One shows the uncertainty of the system and one not. We then conducted a user study which shows that the user needs slightly more time and produces slightly more errors when the confidence of the system is visualized.
A BCI based virtual control testbed for motion disabled people
Authors: Jayoung Goo, Dongjun Suh, Hyun Sang Cho, Kyoung S. Park, Minsoo Hahn
Venue: Proceedings of the 2005 international conference on Augmented tele-existence (2005)

This system was designed for motion disabled people to navigate and interact with the virtual environment that also triggers actions in the real environment. The testbed consists of the BCI using motor imagery brain signals, the communication module, the brain signal analyzer and the virtual world linked with a physical miniature model of real home. The testbed is developed to provide motion disabled people to control real home facilities. In a preliminary test, we found that our BCI testbed produces a reasonable usability in VR.
Searching Off-line Arabic Documents
Authors: Jim Chan, Celal Ziftci, David Forsyth
Venue: Proceedings of the 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 2 (2006)

Currently an abundance of historical manuscripts, journals, and scientific notes remain largely unaccessible in library archives. Manual transcription and publication of such documents is unlikely, and automatic transcription with high enough accuracy to support a traditional text search is difficult. In this work we describe a lexicon-free system for performing text queries on off-line printed and handwritten Arabic documents. Our segmentation-based approach utilizes gHMMs with a bigram letter transition model, and KPCA/LDA for letter discrimination. The segmentation stage is integrated with inference. We show that our method is robust to varying letter forms, ligatures, and overlaps. Additionally, we find that ignoring letters beyond the adjoining neighbors has little effect on inference and localization, which leads to a significant performance increase over standard dynamic programming. Finally, we discuss an extension to perform batch searches of large word lists for indexing purposes.
A framework for simulating human cognitive behavior and movement when predicting impacts of catastrophic events
Authors: Mary Court, Jennifer Pittman, Christos Alexopoulos, David Goldsman, Seong-Hee Kim, Margaret Loper, Amy Pritchett, Jorge Haddock
Venue: Proceedings of the 36th conference on Winter simulation (2004)

Our nation has seen an increased need to train its civil authorities and emergency personnel under life-threatening scenarios where human life and critical infrastructure are assumed to be at risk. This training is typically obtained or re-enforced via (human) performance-based tests. At issue is the ability to accurately simulate the scenarios without exposing personnel or human test subjects to injury. In addition, these performance-based tests carry a large monetary cost, and certain scenarios are so complicated, catastrophic or rare that any performance-based test is unrealistic. Our paper outlines the research that must be conducted to develop a framework for modeling and analyzing risk-assessment and decision making when evacuating large populations. The research is aimed at extending an existing construct for simulating passenger and crew behavior during aircraft evacuations, to larger populations, and relies upon rare-event simulation methods, parallel-and-distributed simulation and agent-based simulation.
Creation of High-Resolution Video Panoramas of Sport Events
Authors: Christoph Fehn, Christian Weissig, Ingo Feldmann, Markus Muller, Peter Eisert, Peter Kauff, Hans BloB
Venue: Proceedings of the Eighth IEEE International Symposium on Multimedia (2006)

This paper describes an approach for creating high-resolution video panoramas of large-scale sport events. In an exemplary football scenario, we used two ARRIFLEX D-20 "film-style" digital cameras to capture both sides of the playing field as well as large parts of the stands. From the recorded left and right view images, we created a joint panoramic view with a resolution of 501 6x1400 pel (5k) using sophisticated image processing algorithms. These highly immersive football panoramas were screened with our modular, high-resolution multiprojection system during the FIFA World Cup 2006 in a 600 seat CinemaxX movie theater in Berlin providing the viewers with the feeling of actually watching the game from a good seat on the stands.
IC-based ontology expansion in devouring accessibility
Authors: Nwe Ni Tun, Satoshi Tojo
Venue: Proceedings of the 2005 Australasian Ontology Workshop - Volume 58 (2005)

In the research area of ontology, it is still necessary to refine the techniques of mapping and integration for further development of the Semantic Web. We propose a new mapping technique between the concepts in different ontologies, using their Identity Conditions (ICs) which give unique values for individuals and determine their identities. Examples of ICs are fingerprint for person, ISBN for book, URI for web object. We regard a Kripke frame, that is a set of worlds and accessibility relations on them, as a community of agents, interpreting a world as the knowledge base of an agent and accessibility relations as the communication channels between agents. We utilize the strongly identifiable characterisitics of ICs to find the correspondence of a concept in other accessible worlds. As a result, the knowledge of ontology defined in a world can be expanded with the contents of those corresponding concepts, and can be regarded as a partial ontology integration or semantic enrichment in ontologies.
Music and control of chaos in the brain
Authors: E. V. Bondarenko, I. Yevin
Venue: Proceedings of the 2003 International Conference on Physics and Control - Volume 2 (2003)

Recent researches revealed that music tends to reduce the degree of chaos in brain waves. For some epilepsy patients music triggers their seizures. Loskutov, Hubler, and others carried out a series of studies concerning control of deterministic chaotic systems. It turned out, that carefully chosen tiny perturbation could stabilize any of unstable periodic orbits making up a strange attractor. Computer experiments have shown a possibility to control a chaotic behavior in neural network by external periodic pulsed force or sinusoidal force. One may propose that the aim of this control is to establish coherent behavior in the brain, because many cognitive functions of the brain are related to a temporal coherence.
Low-Latency Live Video Streaming over Low-Capacity Networks
Authors: Giovanni Gualdi, Rita Cucchiara, Andrea Prati
Venue: Proceedings of the Eighth IEEE International Symposium on Multimedia (2006)

This paper presents an effective system for streaming over low-capacity networks (such as GPRS and EGPRS) of live videos with low latency. Existing solutions are either too complex or not suitable to our scope. For this reason, we developed a complete, ready-to-use streaming system based on H.264/AVC codec and UDP/IP stack. The system employs adaptive controls to achieve the best tradeoff between low latency and good video fluency, by keeping the UDP buffer occupancy at the decoder side between two given levels. Our experiments demonstrate that this system is able to transmit live videos at CIF format and 10 fps over GPRS/EGPRS with very low latency (1.73 sec on average, basically due to the network delay), good fluency and average quality, measured with PSNR, of 31 dB on GPRS at 23 kbps at 10 fps.
Single event transients in dynamic logic
Authors: Gilson I Wirth, Ivandro Ribeiro, Michele G Vieira, F G L Kastensmidt
Venue: Proceedings of the 19th annual symposium on Integrated circuits and systems design (2006)

Radiation effects, like Single Event Transients (SET), are increasingly affecting integrated circuits as device dimensions are scaling down. With decreasing dimensions and supply voltages, the charge used to store information decreases, turning the circuits more sensitive to the transient currents generated by energetic particle hits. This is particularly important for dynamic logic, which relies on proper charge storage at circuit nodes.In this work the sensitivity of dynamic logic to Single Event Transients is studied and modeled. The single event upset (SEU) mechanism in both dynamic and static MOS circuits is studied starting from circuit simulation. From this study it is shown that standard dynamic logic circuits are much more sensitive to SET than static circuits. However, the implementation of a keeper technique may greatly reduce the sensitive of dynamic logic, increasing its robustness against SET.Furthermore, an accurate and computationally efficient analytical model for the evaluation of static and dynamic circuit sensitivity to SEU is presented. The model may be used in early design stages, helping to design circuits with increased tolerance to SET. The proposed model predicts whether or not a particle hit generates a SET which may be interpreted as a logical signal in the circuit. Good agreement between model and electrical simulation results is found.
View from the top: military challenges for the simulation community
Authors: Gregory A. McIntyre, Raymond R. Hill
Venue: Proceedings of the 36th conference on Winter simulation (2004)

The Department of Defense (DoD) has become increasingly reliant on models and in particular on simulation models. The military-defense establishment and its combat-preparation orientation is one of the most complex systems in existence, particularly in the extremely dynamic modern world. Simulation models form the basis for analyses spanning issues ranging from force structuring to acquisition prioritization. These analyses, and the subsequent decisions they support, mold and shape the DoD thereby influencing the posture of the US defense establishment. This panel brings together a set of the military's influential decision makers directly involved in the development and use of simulation models. The panel will discuss their cur-rent and anticipated needs for the future of simulation and pose the challenges the simulation community must meet to ensure those future needs are met.
2005 Special issue: Place from time: Reconstructing position from a distributed representation of temporal context
Authors: Marc W. Howard, Vaidehi S. Natu
Venue: Neural Networks (2005)

The temporal context model (TCM) [Howard, M. W., & Kahana, M. J. (2002). A distributed representation of temporal context. Journal of Mathematical Psychology, 46(3), 269-299] was proposed to describe recency and associative effects observed in episodic recall. Episodic recall depends on an intact medial temporal lobe, a region of the brain that also supports a place code. Howard, Fotedar, Datey, and Hasselmo [Howard, M. W., Fotedar, M. S., Datey, A. V., & Hasselmo, M. E. (2005). The temporal context model in spatial navigation and relational learning: Toward a common explanation of medial temporal lobe function across domains. Psychological Review, 112(1), 75-116] demonstrated that the leaky integrator that supports a gradually changing representation of temporal context in TCM is sufficient to describe properties of cells observed in ventromedial entorhinal cortex during spatial navigation if it is provided with input about the animal's current velocity. This representation of temporal context generates noisy place cells in the open field, unlike the clearly defined place cells observed in the hippocampus. Here we demonstrate that a reasonably accurate spatial representation can be extracted from temporal context with as few as eight cells, suggesting that the spatial precision observed in the place code in the hippocampus is not inconsistent with the input from a representation of temporal-spatial context in entorhinal cortex.
A mixture model for contextual text mining
Authors: Qiaozhu Mei, ChengXiang Zhai
Venue: Proceedings of the 12th ACM SIGKDD international conference on Knowledge discovery and data mining (2006)

Contextual text mining is concerned with extracting topical themes from a text collection with context information (e.g., time and location) and comparing/analyzing the variations of themes over different contexts. Since the topics covered in a document are usually related to the context of the document, analyzing topical themes within context can potentially reveal many interesting theme patterns. In this paper, we generalize some of these models proposed in the previous work and we propose a new general probabilistic model for contextual text mining that can cover several existing models as special cases. Specifically, we extend the probabilistic latent semantic analysis (PLSA) model by introducing context variables to model the context of a document. The proposed mixture model, called contextual probabilistic latent semantic analysis (CPLSA) model, can be applied to many interesting mining tasks, such as temporal text mining, spatiotemporal text mining, author-topic analysis, and cross-collection comparative analysis. Empirical experiments show that the proposed mixture model can discover themes and their contextual variations effectively.
Teamwork: assessing cross-disciplinary learning
Authors: Renate Fruchter, Katherine Emery
Venue: Proceedings of the 1999 conference on Computer support for collaborative learning (1999)

Multidisciplinary teamwork in an information age learning environment poses new assessment challenges. This paper presents a study that focuses on the assessment of a learning environment in which students collaborate in multidisciplinary, geographically distributed teams. The study presents a new metric, cross-disciplinary learning, as a journey from the state of island of knowledge (discipline-centric) to a state of understanding of the goals, language, and representations of the other disciplines. The metric proposes a four-tiered classification, designed to measure the students' evolution of cross-disciplinary learning, that is based on the perspectives of cognitive and situative learning theories. The four tiers are islands of knowledge, awareness, appreciation, and understanding. An additional metric is based on a longitudinal assessment that tracks the programmatic changes such a cross-disciplinary education program can lead to. The paper describes the multidisciplinary, collaborative, geographically distributed teamwork learning environment, the assessment methodology, data collection and analysis, and discusses the preliminary results.
Improved Genetic and Ant Colony Optimization Algorithm for Regional Air Defense WTA Problem
Authors: Tiao-ping Fu, Yu-shu Liu, Jian-hua Chen
Venue: Proceedings of the First International Conference on Innovative Computing, Information and Control - Volume 1 (2006)

Facing the complex air defense situation, it is an urgent mission to improve the efficiency of regional air defense weapon-target assignment of warship formation. The weapon-target assignment problem is NP hard. Classical methods for solving such problems are based on graph search and usually result in exponential complexities. Some intelligent algorithms usually result in local optimal. An improved genetic and ant colony optimization algorithm is proposed. The phase of genetic algorithm adopts crowding technique and changeable mutation operator to maintain multiple populations. As a result, the phase of ant colony optimization can avoid getting into local optimization. Furthermore, an intensive study of how to use this algorithm in weapon-target assignment is made. Experiments results demonstrate that the improved algorithm achieves better efficiency than some classical optimization algorithms. The proposed algorithm can solve regional air defense weapontarget assignment problem well.
Optical properties of treated and untreated monocrystalline p-Si{111}, p-Si{100}, n-Si{111} and n-Si{100} wafers in the visible region at room temperature
Authors: M. R. Hashim, Kifah Q. Salih
Venue: Microelectronic Engineering (2005)

Silicon only based materials have dominated the electronic applications for the past few decades and now the materials have almost reached its saturation point. However there is a new great opening for silicon only based material to re-dominate consumer product market place and that is in the area of photonics. The motivation for the re-domination is driven by all silicon opto-electronics and therefore any development of silicon optical properties would hold the promise of having both electronics and optics on the same chip. Among important key ingredients for silicon technological success in photonic applications is the ability to change their refractive index and surface texture. The refractive index modification leads to the change of extraction efficiency through the change of surface roughness and material quality. In this work, we use temperature treatment to modify optical properties and surface texture of monocrystalline p-Si, p-Si, n-Si and n-Si wafers. Optical properties of our samples were observed using both ellipsometry and PL systems and surface roughness is observed using AFM technique. The PL system used He-Ne laser operating at 543.5nm. The PL spectra were taken at room temperature in the visible region. The results showed that the treated samples have increased PL intensity and uniformity in the visible region compared to those of untreated samples. In addition the treated p-type Si samples showed better PL intensity enhancement compared to those of treated n-type samples. The explanation for this behavior will be discussed using AFM images and ellipsometry measurements.