ppxscal/embedding_network huggingface dataset:
Detecting Events from Continuous Media by Intermodal Collaboration and Knowledge Use
Authors: Noboru Babaguchi, Shigekazu Sasamori, Tadahiro Kitahashi, Ramesh Jain
Venue: Proceedings of the IEEE International Conference on Multimedia Computing and Systems - Volume 2 (1999)

In this paper, we propose an event network, which is a structured representation oriented for the contents of continuous media, as well as present two methods of detecting events as the first step to construct the network. We here deal with sports TV programs, considering American football as a case study. The first method is simple intermodal collaboration: linking between visual and linguistic (closed caption) streams. Using domain knowledge about state transitions of football games, the second method attempts to extract specific visual objects including the information about contents. The experimental results indicate that the both methods are effective for event detection.
Multicast Encryption Infrastructure for Security in Sensor Networks
Authors: R. R. Brooks, Brijesh Pillai, Matthew Pirretti, Michele C. Weigle
Venue: International Journal of Distributed Sensor Networks (2009)

Designing secure sensor networks is difficult. We propose an approach that uses multicast communications and requires fewer encryptions than pairwise communications. The network is partitioned into multicast regions; each region is managed by a sensor node chosen to act as a keyserver. The keyservers solicit nodes in their neighborhood to join the local multicast tree. The keyserver generates a binary tree of keys to maintain communication within the multicast region using a shared key. Our approach supports a distributed key agreement protocol that identifies the compromised keys and supports membership changes with minimum system overhead. We evaluate the overhead of our approach by using the number of messages and encryptions to estimate power consumption. Using data from field tests of a military surveillance application, we show that our multicast approach needs fewer encryptions than pair-wise keying approaches. We also show that this scheme is capable of thwarting many common attacks.
Packing circuits in matroids
Authors: Guoli Ding, Wenan Zang
Venue: Mathematical Programming: Series A and B (2009)

The purpose of this paper is to characterize all matroids M that satisfy the following minimax relation: for any nonnegative integral weight function w defined on E(M), $${\begin{aligned} & {\rm Maximum} \{ k: M\,{\rm has}\,k\,{\rm circuits\,(repetition\,allowed)\,such\,that\,each\,element}\,e\,{\rm of}\,M\\ &\quad\quad\quad\quad\quad {\rm is\,used\,at\,most}\,2w(e)\,{\rm times\,by\,these\,circuits}\}\\ =\,&{\rm Minimum}\left\{\sum\nolimits_{x\in X} w(x): X\,{\rm is\,a\,collection\,of\,elements\,(repetition\,allowed)\,of}\,M \right.\\ &\quad \quad\quad\quad\quad\left.\vphantom{\sum_{x\in X}} {\rm such\,that\,every\,circuit\,in}\,M\,{\rm meets}\,X\,{\rm at\,least\,twice}\right\}. \end{aligned}}$$ Our characterization contains a complete solution to a research problem on 2-edge-connected subgraph polyhedra posed by Cornu&#x00e9;jols, Fonlupt, and Naddef in 1985, which was independently solved by Vandenbussche and Nemhauser in Vandenbussche and Nemhauser (J. Comb. Optim. 9:357&#x2013;379, 2005).
Romanian power systems engineering towards EU integration
Authors: Stefania Popadiuc, Bogdan Popa, Frangiskos Topalis, Cristiana Geambasu
Venue: Proceedings of the 6th conference on Applications of electrical engineering (2007)

The evolution of electric power system analysis methods followed the present technical problems and business needs of electric utilities in Romania, before EU integration. Present technical requirements and the current stage of power system analysis tools - are major subjects of the Romanian electric power engineering training. Training in Power Systems Transients and HV Electric Equipment requires a rich collection of computer applications on: transients and harmonic pollution on high- voltage transmission lines; non-linear equipment; non-linear consumers, etc. Such problems can only be taught to power engineers using due computer resources (hardware and software). During its more than 50 years of activity, the Power Engineering Faculty continuously shaped its training system according to Romania needs and their dynamic, while its standard is competitive with the one in the developed countries. Department of Electrical Power Engineering (DEPE) trains the high quality specialists for the national field of power generation out of primary energy resources, power transmission and distribution to the consumers throughout the country.
Controlling deformable material with dynamic morph targets
Authors: Nico Galoppo, Miguel A. Otaduy, William Moss, Jason Sewall, Sean Curtis, Ming C. Lin
Venue: Proceedings of the 2009 symposium on Interactive 3D graphics and games (2009)

We present a method to control the behavior of elastic, deformable material in a dynamic simulation. We introduce dynamic morph targets, the equivalent in dynamic simulation to the geometric morph targets in (quasi-static) modeling. Dynamic morph targets define the pose-dependent physical state of soft objects, including surface deformation and elastic and inertial properties. Given these morph targets, our algorithm then derives a dynamic model that can be simulated in time-pose-space, interpolating the dynamic morph targets at the input poses. Our method easily integrates with current modeling and animation pipelines: at different poses, an artist simply provides a set of dynamic morph targets. Whether these input states are physically plausible is completely up to the artist. The resulting deformable models expose fully dynamic, pose-dependent behavior, driven by the artist-provided morph targets, complete with inertial effects. Our deformable models are computationally efficient at runtime through modal reduction and pose-space polynomial interpolation. These models can therefore be plugged into existing dynamic simulation engines, either forming interactive, deformable content in real-time games or providing secondary dynamic effects for kinematically-driven characters in feature animation films. Finally, our method also facilitates certain time-consuming rigging procedures, by providing a physically based approach to resolve co-articulation deficiencies in traditional skinning methods, such as in shoulder regions, fully automatically.
A Passive 3D Face Recognition System and Its Performance Evaluation
Authors: Akihiro Hayasaka, Takuma Shibahara, Koichi Ito, Takafumi Aoki, Hiroshi Nakajima, Koji Kobayashi
Venue: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences (2008)

This paper proposes a three-dimensional (3D) face recognition system using passive stereo vision. So far, the reported 3D face recognition techniques have used active 3D measurement methods to capture high-quality 3D facial information. However, active methods employ structured illumination (structure projection, phase shift, moire topography, etc.) or laser scanning, which is not desirable in many human recognition applications. Addressing this problem, we propose a face recognition system that uses (i) passive stereo vision to capture 3D facial information and (ii) 3D matching using an ICP (Iterative Closest Point) algorithm with its improvement techniques. Experimental evaluation demonstrates efficient recognition performance of the proposed system compared with an active 3D face recognition system and a passive 3D face recognition system employing the original ICP algorithm.
Minimum-weight cycle covers and their approximability
Authors: Bodo Manthey
Venue: Discrete Applied Mathematics (2009)

A cycle cover of a graph is a set of cycles such that every vertex is part of exactly one cycle. An L-cycle cover is a cycle cover in which the length of every cycle is in the set L@?N. We investigate how well L-cycle covers of minimum weight can be approximated. For undirected graphs, we devise non-constructive polynomial-time approximation algorithms that achieve constant approximation ratios for all sets L. On the other hand, we prove that the problem cannot be approximated with a factor of 2-@e for certain sets L. For directed graphs, we devise non-constructive polynomial-time approximation algorithms that achieve approximation ratios of O(n), where n is the number of vertices. This is asymptotically optimal: We show that the problem cannot be approximated with a factor of o(n) for certain sets L. To contrast the results for cycle covers of minimum weight, we show that the problem of computing L-cycle covers of maximum weight can, at least in principle, be approximated arbitrarily well.
Reconfiguration of Cube-Style Modular Robots Using O(logn) Parallel Moves
Authors: Greg Aloupis, Sébastien Collette, Erik D. Demaine, Stefan Langerman, Vera Sacristán, Stefanie Wuhrer
Venue: Proceedings of the 19th International Symposium on Algorithms and Computation (2008)

We consider a model of reconfigurable robot, introduced and prototyped by the robotics community. The robot consists of independently manipulable unit-square atoms that can extend/contract arms on each side and attach/detach from neighbors. The optimal worst-case number of sequential moves required to transform one connected configuration to another was shown to be &theta;(n) at ISAAC 2007. However, in principle, atoms can all move simultaneously. We develop a parallel algorithm for reconfiguration that runs in only O(logn) parallel steps, although the total number of operations increases slightly to &theta;(n logn). The result is the first (theoretically) almost-instantaneous universally reconfigurable robot built from simple units.
Mission-critical transfer and ethernet-based MAN networks: a contemporary snapshot
Authors: Vanya Topalova
Venue: Proceedings of the 9th International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing (2008)

Ethernet technology offers a contemporary choice for MAN environment. Although their growing impact, the Ethernet-based MAN networks still have to solve a number of questions in order to provide resilience, QoS, service management, scalability and compatibility. Moreover, different types of transfer, in particular mission-critical applications, have to be deployed and maintained over this type of MAN networks. Both the set of protocols -- SIP, RTP/RTCP and the QoS issues, widely spread in the real-time communication process, have a significant influence over the stages of building and implementing an Ethernet-based MAN environment.
An intelligent semi-automatic application porting system for application accelerators
Authors: Thomas Henry Beach, Nicholas J. Avis
Venue: Proceedings of the combined workshops on UnConventional high performance computing workshop plus memory access workshop (2009)

Work involving the use of application acceleration devices is showing great promise, however, there are still major obstacles preventing their widespread adoption. Currently the process of porting applications to an accelerator requires expertise in both the computer science and application domains, due to the lack of abstraction available. We present our work associated with the development of a novel solution to this abstraction problem; an intelligent semi-automatic application porting system, that will allow a higher level of abstraction, to be presented to the end user, while maintaining reasonable performance levels. A prototype system has been constructed that can successfully port applications to Graphics Processing Units (GPUs) and shows promising results in terms of performance comparisons between CPU and GPU. We are presently extending our prototype to other application acceleration devices and to allow the automatic selection of the most appropriate device for an application using Machine Learning techniques. We expect our work and results will be of widespread interest to the increasing community involved in porting code to application accelerators.
3GPP towards IMS: quality of service and charging
Authors: Alberto E. Garcia, Laura Rodriguez, Klaus D. Hackbarth, Miguel Faro Rivas
Venue: Proceedings of the 8th WSEAS international conference on Distance learning and web engineering (2008)

The IP Multimedia Subsystem (IMS) is one of the most important trends in networking in last few years. In spite of the large amount of literature on this topic, there are still some uncertainties about its evolution and functionality. This paper provides the framework for analyzing the evolution of IMS architecture, based on two critical points: Quality of Service (QoS) and Charging and Billing issues. We focus on these two points because the QoS is one of the most appealing characteristics of IMS and charging and billing will determine the acceptance of this architecture. The paper aims to provide a global view of IMS and the most relevant points about its strengths and weakness.
Microsoft Voice and Unified Communications, 1 edition
Authors: Joe Schurman
Venue:  (2009)

Microsoft Voice and Unified Communications is essential reading for anyone usingor consideringMicrosofts range of VoIP options, from consumers to small business owners to enterprise customers. --Xuedong Huang, General Manager, Microsoft Research Communications, Innovation Center Joe Schurman has captured the essence of Microsofts vision and implementation in the areas of Voice and Unified Communications. This is an important book for those interested in connecting the dots between the present and the future in human communications and understanding why things are evolving in that way. --Gurdeep Singh Pall, Microsoft Corporate Vice President, Unified Communications Group Microsoft Voice and Unified Communications is a book that provides insight into Microsofts Voice and Unified Communications portfolio of products and services related to Microsoft Windows Live, Microsoft Response Point, and the Microsoft Unified Communications platform. Heres What Youll Find Inside. . . Microsofts vision of voice products and services for consumer, small/medium businesses, and enterprise organizations including a foreword by Gurdeep Singh Pall, Microsoft Corporate Vice President, Unified Communications Group, and commentary by Xuedong Huang, General Manager of the Microsoft Research Communications Innovation Center. Technical guidance and information related to Microsoft Windows Live, Microsoft Response Point, and the Microsoft Unified Communications platform, including the newly released Microsoft Office Communications Server 2007 R2. Sales guidance for selling Microsoft voice solutions in the SMB and Enterprise markets. Examples of customized Microsoft voice and unified communications applications. Overview of Microsoft voice and unified communications security. Latest Microsoft voice and unified communications research and development. Understanding of voice, unified communications, and telephony concepts and terms as well as the history and evolution of communications technology.
Adjacent-block based statistical detection method for self-embedding watermarking techniques
Authors: Hong-Jie He, Jia-Shu Zhang, Fan Chen
Venue: Signal Processing (2009)

This paper proposes an adjacent-block based statistical detection method for self-embedding watermarking techniques to accurately identify the tampered blocks, and gives an analytical analysis of the tamper detection performance. In the proposed statistical detection method, we take all adjacent blocks of the test block and its mapping block into account and then utilize a statistic-based rule to verify the validity of image blocks. Analytical analysis and experimental results demonstrate that the proposed statistical detection method can identify the tampered blocks with a probability more than 98% even the tampered area is up to 70% of the host image. In addition, the proposed method outperforms conventional self-embedding fragile watermarking algorithms in tamper detection under collage attack and content-tampering attack.
Generalized profiling estimation for global and adaptive penalized spline smoothing
Authors: Jiguo Cao, James O. Ramsay
Venue: Computational Statistics Data Analysis (2009)

We propose the generalized profiling method to estimate the multiple regression functions in the framework of penalized spline smoothing, where the regression functions and the smoothing parameter are estimated in two nested levels of optimization. The corresponding gradients and Hessian matrices are worked out analytically, using the Implicit Function Theorem if necessary, which leads to fast and stable computation. Our main contribution is developing the modified delta method to estimate the variances of the regression functions, which include the uncertainty of the smoothing parameter estimates. We further develop adaptive penalized spline smoothing to estimate spatially heterogeneous regression functions, where the smoothing parameter is a function that changes along with the curvature of regression functions. The simulations and application show that the generalized profiling method leads to good estimates for the regression functions and their variances.
A method for transformation of 3D space into Ukiyo-e composition
Authors: Yuka Kubo, Zhao Jie, Koichi Hirota
Venue: ACM SIGGRAPH ASIA 2008 artgallery: emerging technologies (2008)

In 1739, Western perspective drawing reached Japan via China. Before then, Japanese drawing, known as Yamato-e, had depicted architectural space through parallel projection. This was true for the ukiyo-e compositions that were popular among the general public during the Edo Era as well (see Figure 1.a). For some time after perspective drawing reached Japan in 1739, ukiyo-e artists created ukiyo-e compositions that incorporated perspective drawing called uki-e (see Figure 1.b). However, this movement was short lived, and after 1800, ukiyo-e artists created compositions using their own type of structure that did not conform to perspective drawing. [Kuroda 17] [Oka 92] [Kishi 94] [Yokochi 95] Works from this time by artists such as Katsushika Hokusai and Utagawa Hiroshige also became influential in the West through the Japonism movement of the 1860s. Figure 2 typifies the style of ukiyo-e composition from the 1800s.
2009 Special Issue: Neural associative memories for the integration of language, vision and action in an autonomous agent
Authors: H. Markert, U. Kaufmann, Z. Kara Kayikci, G. Palm
Venue: Neural Networks (2009)

Language understanding is a long-standing problem in computer science. However, the human brain is capable of processing complex languages with seemingly no difficulties. This paper shows a model for language understanding using biologically plausible neural networks composed of associative memories. The model is able to deal with ambiguities on the single word and grammatical level. The language system is embedded into a robot in order to demonstrate the correct semantical understanding of the input sentences by letting the robot perform corresponding actions. For that purpose, a simple neural action planning system has been combined with neural networks for visual object recognition and visual attention control mechanisms.
Estimation of total harmonic distortion in short chorded induction motors using artificial neural network
Authors: Yasar Birbir, H. Selcuk Nogay, Vedat Topuz
Venue: Proceedings of the 6th conference on Applications of electrical engineering (2007)

In this paper, Artificial Neural Network (ANN) technique has been used for the estimation of voltage THD (Total Harmonic Distortion), current THD and power factor, mainly from input and output measurements of five different chorded induction motors fed from a pulse width modulation inverter voltage supply. A sinusoidal pulse-width modulation (SPWM) inverter feeding five different chorded three-phase induction motors were tested up to first thirty harmonic voltage component at different loads. The results show that the artificial neural network model produces reliable estimates of voltage THD, current THD and power factor.
The problem of consistency in the design of Fitts' law experiments: consider either target distance and width or movement form and scale
Authors: Yves Guiard
Venue: Proceedings of the 27th international conference on Human factors in computing systems (2009)

An intriguing anomaly of the usual way of designing Fitts' law experiments in experimental psychology and HCI is exposed: experiments are traditionally designed so as to carefully balance two ancillary factors, target distance D and target width W, but not task difficulty, the factor unanimously thought to be crucial. Troubling factor confounds and hence quantitative estimation errors result from this inconsistency. The problem, it is suggested, may be fixed if the equivocalness of the fractional expression D/W that appears on the right-hand side of Fitts' law equations is acknowledged. This two-degree-of-freedom expression can be taken to specify either D and W or the form F and the scale S of the movement task. The paper ends up with practical recommendations for the design of consistent Fitts' law experiments. In most cases eliminating one factor will allow a safer estimation of Fitts' law parameters, while simplifying the experimental work.
Chaos and Graphics: Evaluating Second Life for the collaborative exploration of 3D fractals
Authors: Paul Bourke
Venue: Computers and Graphics (2009)

This paper explores the use of online digital world Second Life as an environment in which one can represent and explore three-dimensional (3D) fractals, and in addition, present them to others in a collaborative and engaging fashion. Second Life at its core provides a means whereby multiple remote participants can engage with 3D geometry within a virtual environment. It has been chosen as a likely candidate for this exploration for a number of additional reasons. These include the easy-to-learn user interface, its relatively widespread uptake compared to the alternatives, the availability of the software for all the major operating systems, its non-aggressive social networking foundation, and its scripting capability. The suitability of Second Life will be evaluated through examples. These examples will attempt to create representations of range of the different types of 3D fractals and a discussion of the outcomes will be presented.
Charge-out system for management acceptance and control of the computer resource
Authors: Richard L. Nolan, Charles Carey, Michael J. Samek, K. Sreenivasan, John V. Soden, Myron Uretsky
Venue: Proceedings of the May 6-10, 1974, national computer conference and exposition (1974)

This panel focuses on the issues of using the pricing mechanism to both control and exploit the computer resource. The pricing mechanism for computer services and charge-out systems are employed primarily for control purposes. A more powerful role exists in the area of exploiting the computer resource and engendering user management acceptance and accountability. The panel will build upon ideas in the following paper in both the management and design issues of charge-out systems.