ppxscal/embedding_network huggingface dataset:
Hyperbox clustering with Ant Colony Optimization (HACO) method and its application to medical risk profile recognition
Authors: G. N. Ramos, Y. Hatakeyama, F. Dong, K. Hirota
Venue: Applied Soft Computing (2009)

A clustering method, called HACO (Hyperbox clustering with Ant Colony Optimization), is proposed for classifying unlabeled data using hyperboxes and an ant colony meta-heuristic. It acknowledges the topological information (inherently associated to classification) of the data while looking in a small search space, providing results with high precision in a short time. It is validated using artificial 2D data sets and then applied to a real medical data set, automatically extracting medical risk profiles, a laborious operation for doctors. Clustering results show an improvement of 36% in accuracy and 7 times faster processing time when compared to the usual ant colony optimization approach. It can be further extended to hyperbox shape optimization (fine tune accuracy), automatic parameter setting (improve usability), and applied to diagnosis decision support systems.
3D simulation supports business improvements in small medium enterprises
Authors: Colm Higgins, Rory Collins, Tom Egar
Venue: Proceedings of the 40th Conference on Winter Simulation (2008)

Challenged by the need to become more competitive Small and Medium Enterprises (SME's) are faced a plethora of business improvement tools and techniques. Some changes are easier to comprehend but other more wide-scale changes required can require a leap of faith. Funding Agencies are also driven by targets to help companies and may push changes which may not be entirely appropriate for the SME. Invest Northern Ireland (INI) recognized the challenges in helping implement change for their client SME's and sought the help of the Northern Ireland Technology Centre (NITC). INI has "3D Factory Simulation Service" to assist client companies to see how they might implement change using the virtual environment, before major funds are committed. This paper aims discuss how the NITC helps to deliver this service; the methodology deployed, the challenges faced, the direct benefits attained by the companies as well as some affiliated bonus' not first apparent.
The design and implementation of an extensible network backup system in realtime
Authors: Nishimura Satoshi, Sano Mutsuo, Ikeda Katsuo
Venue: Proceedings of the 3rd International Conference on Ubiquitous Information Management and Communication (2009)

This paper proposes a backup system based on mirroring filesystem "GMFS." GMFS has been developed to mirror data in realtime on the filesystem layer. The GMFS is a stackable filesystem which flexibly mirrors without changing the existing environment by operating as a wrapper of other filesystems. Because the conventional mirroring technology utilizes the mirroring function on the device layer or needs a special filesystem, the allocation of the disk and the specific format of the filesystem are needed, and so the disk design is fixed. Therefore, the conventional mirroring technology cannot adjust when the mirroring function not assumed will be needed later. In this situation, the mechanism that adds the mirroring function without changing the existing disk design is necessary. The GMFS conducts the operation of other filesystems transparently, thereby users need not be aware of the GMFS. The conventional filesystem looks as if it performs mirroring data by itself. GMFS can therefore add the function that mirrors in realtime without destroying the existing environment. GMFS uses NFS which is a typical network file system to communicate with an existing environment. The throughput of reading and writing has been improved by adopting the method to call system function of NFS from the inside of the filesystem. We developed this filesystem, and evaluated the performance from the viewpoint of throughput and system call speed and CPU loads. As a result, it was shown that there was no problem in the viewpoint of the performance compared with the conventional filesystem, and the throughput of the read and write of GMFS was 2.0 times faster than conventional mirroring filesystem.
Buffer design and optimization for lut-based structured ASIC design styles
Authors: Po-Yang Hsu, Shu-Ting Lee, Fu-Wei Chen, Yi-Yu Liu
Venue: Proceedings of the 19th ACM Great Lakes symposium on VLSI (2009)

The interconnection delay of pre-fabricated design style dominates circuit delay due to the heavily downstream capacitance. Buffer insertion is a widely used technique to split off a long wire into several buffered wire segments for circuit performance improvement. In this paper, we are motivated to investigate the buffer insertion issues in LUT-based structured ASIC design style. We design the layouts of two dedicated buffers and extract the technology dependent parameters for evaluations. After that, we propose a channel migration technique, which employs both intra-channel migration and inter-channel migration, to alleviate the sub-channel saturation problem. The experimental results demonstrate that dedicated buffers are essential for structured ASIC design style.
Approximating Shortest Paths in Graphs
Authors: Sandeep Sen
Venue: Proceedings of the 3rd International Workshop on Algorithms and Computation (2009)

Computing all-pairs distances in a graph is a fundamental problem of computer science but there has been a status quo with respect to the general problem of weighted directed graphs. In contrast, there has been a growing interest in the area of algorithms for approximate shortest paths leading to many interesting variations of the original problem.In this article, we trace some of the fundamental developments like spanners and distance oracles, their underlying constructions, as well as their applications to the approximate all-pairs shortest paths.
Gordon: using flash memory to build fast, power-efficient clusters for data-intensive applications
Authors: Adrian M. Caulfield, Laura M. Grupp, Steven Swanson
Venue: ACM SIGPLAN Notices (2009)

As our society becomes more information-driven, we have begun to amass data at an astounding and accelerating rate. At the same time, power concerns have made it difficult to bring the necessary processing power to bear on querying, processing, and understanding this data. We describe Gordon, a system architecture for data-centric applications that combines low-power processors, flash memory, and data-centric programming systems to improve performance for data-centric applications while reducing power consumption. The paper presents an exhaustive analysis of the design space of Gordon systems, focusing on the trade-offs between power, energy, and performance that Gordon must make. It analyzes the impact of flash-storage and the Gordon architecture on the performance and power efficiency of data-centric applications. It also describes a novel flash translation layer tailored to data intensive workloads and large flash storage arrays. Our data show that, using technologies available in the near future, Gordon systems can out-perform disk-based clusters by 1.5× and deliver up to 2.5× more performance per Watt.
Mathematical Modeling and Simulation: Introduction for Scientists and Engineers
Authors: Kai Velten
Venue:  (2009)

This concise and clear introduction to the topic requires only basic knowledge of calculus and linear algebraall other concepts and ideas are developed in the course of the book. Lucidly written so as to appeal to undergraduates and practitioners alike, it enables readers to set up simple mathematical models on their own and to interpret their results and those of others critically. To achieve this, many examples have been chosen from various fields, such as biology, ecology, economics, medicine, agricultural, chemical, electrical, mechanical and process engineering, which are subsequently discussed in detail. Based on the author's modeling and simulation experience in science and engineering and as a consultant, the book answers such basic questions as: What is a mathematical model? What types of models do exist? Which model is appropriate for a particular problem? What are simulation, parameter estimation, and validation? The book relies exclusively upon open-source software which is available to everybody free of charge. The entire book softwareincluding 3D CFD and structural mechanics simulation softwarecan be used based on a free CAELinux-Live-DVD that is available in the Internet (works on most machines and operating systems).
Simulation based evaluation of the workload control concept for a company of the automobile industry
Authors: Patrick Kirchhof, Nicolas Meseth, Thomas Witte
Venue: Proceedings of the 40th Conference on Winter Simulation (2008)

This paper describes a simulation study conducted for a company of the German automobile supply industry facing the need to improve delivery reliability. The intention of the study was to evaluate whether Workload Control (WLC) is applicable as production control policy for this company and whether improvement can be expected. Therefore the regarded shop floor was modeled being organized as a WLC production system. Both, the structural and quantitative model components of the developed simulation model are explained in depth. Furthermore it is shown how inherent parameters of the WLC concept can be set using the simulation model in a practical environment. As due date compliance is the primary concern of the company, the performance of four simple priority dispatching rules is analyzed with regard to delivery reliability. As a result it is shown that WLC is applicable in the given situation and that performance enhancements can be expected.
Towards a design method for expressive robots
Authors: Bernt Meerbeek, Martin Saerbeck, Christoph Bartneck
Venue: Proceedings of the 4th ACM/IEEE international conference on Human robot interaction (2009)

Autonomous robots tend to induce the perception of a personality through their behavior and appearance. It has been suggested that the personality of a robot can be used as a design guideline and as a mental model of the robot. We propose a method to design and evaluate personality and expressions for domestic robots.
Research on QoS-Based Web Service Composition
Authors: Yimei Mao, Jiajin Le
Venue: Proceedings of the 2009 International Conference on Advanced Computer Control (2009)

Web services are an emerging internet technology to dynamically describe, discover and communicate. With the rapid development of the Web services, how to provide quality of service (QoS) becomes a key factor to achieve success in business. This paper proposes a QoS-based Web service composition approach, illustrates the study of related technology in the Web service composition, provides the QoS-based Web service composition framework, QWSCF, and gives a system deployment and implementation plan accordingly.
Mastering Autodesk Inventor 2009 and Autodesk Inventor LT 2009
Authors: Curtis Waguespack, Sean Dotson, Bill Bogan, Andrew Faix, Seth Hindman, Loren Jahraus, Dennis Jeffrey, Shekar Subrahmanyam, Bob Van der Donck
Venue:  (2008)

The expert content in Mastering Autodesk Inventor 2009 and Autodesk InventorLT 2009 will help you learn advanced related to the industry-leading 3D mechanical design software. Coverage of subjects like design tactics for large assemblies, effective model design for different industries, strategies for effective data and asset sharing across teams, using 2D and 3D data from other CAD systems, and improving designs is through and comprehensive. With straightforward explanations, real-world examples, practical tutorials, tips, tricks, and techniques, this book will be your go-to guide to Autodesk Inventor.
Jamming for good: a fresh approach to authentic communication in WSNs
Authors: Ivan Martinovic, Paul Pichota, Jens B. Schmitt
Venue: Proceedings of the second ACM conference on Wireless network security (2009)

While properties of wireless communications are often considered as a disadvantage from a security perspective, this work demonstrates how multipath propagation, a broadcast medium, and frequency jamming can be used as valuable security primitives. Instead of conventional message authentication by receiving, verifying, and then discarding fake data, sensor nodes are prevented from receiving fake data at all. The erratic nature of signal propagation distributes the jamming activity over the network which hinders an adversary in predicting jamming nodes and avoids selective battery-depletion attacks. By conducting real-world measurements, we justify the feasibility of such a security design and provide details on implementing it within a realistic wireless sensor network.
Using SOA Provenance to Implement Norm Enforcement in e-Institutions
Authors: Javier Vázquez-Salceda, Sergio Alvarez-Napagao
Venue: Coordination, Organizations, Institutions and Norms in Agent Systems IV: COIN 2008 International Workshops, COIN@AAMAS 2008, Estoril, Portugal, May 12, 2008. COIN@AAAI 2008, Chicago, USA, July 14, 2008. Revised Selected Papers (2009)

In the last 10 years several approaches and technologies other than MAS (such as Web services and Grid computing) have emerged, with the support of the industry, providing their own solutions to distributed computation. As both Web services and Grid computing are based in the concept of service orientation, where all computation is split in independent, decoupled services, there is an opportunity for MAS researchers to test and extend their mechanisms and techniques in these emerging technologies. In this paper we describe a way to adapt the Harmon IA framework to be applied in highly regulated Web services and Grid computing scenarios. To do so we include a provenance mechanism as part of our norm enforcement mechanisms, which can be integrated into a SOA Governance workflow. We will show with an example how provenance allows the observation of both service interactions and (optionally) extra information about meaningful events in the system that cannot be observed in the interaction messages.
A Study on the Hybrid Image Coding and Structuring Methods for Multimedia Scalability Packages Communication Services
Authors: Mei Kodama, Hiroyuki Kasai, Hideyoshi Tominaga
Venue: Proceedings of the 1999 IEEE International Conference on Multimedia Computing and Systems - Volume 02 (1999)

Multimedia communication services based on standard information, such as MPEG-1, MPEG-2, H.261 and H.263, had been indicated using multimedia scalability packages, which can provide multimedia information according to functionality and availability for users. In this paper, we propose the coding method of video information architecture in these packages, which are called "MSP". The MSP data architecture is defined using hierarchical architectures. We especially considered temporal feature information. The temporal scalability concept is described by both of MSP data and scalability content data. And then, as coding schemes, we attention to video hybrid scalability using spatial scalability and temporal one and scalability profiles are shown. Finally, we explained the new video temporal function by MSP data description.
Mathematics and programming: some studies
Authors: Ana Pacheco, Anabela Gomes, Joana Henriques, Ana Maria de Almeida, António José Mendes
Venue: Proceedings of the 9th International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing (2008)

Learning how to develop a program is known to be a difficult task to many novice students. This is a problem to which, neither the traditional teaching methods nor the more sophisticated methods based on computational tools already proposed have been able to meet. According to the related literature and our own experience as teachers, there seems to be a set of causes responsible for this problem. It is our opinion the most important cause is the lack of good generic problem solving skills, especially those related to mathematical methods and models for solving problems. The current undergoing work focuses on this assumption and this paper reports specific experiences carried out during the years of 2006/2007 and 2007/2008, directed to explore possible relations between deficient mathematical problem solving competences and the lack of programming abilities shown by a group of students who failed their initial programming course.
Reversible Data Hiding Using Prediction Error Values Embedding
Authors: Yongjian Hu, Heung-Kyu Lee, Jianwei Li, Kaiying Chen
Venue: Proceedings of the 6th International Workshop on Digital Watermarking (2008)

In this paper, we propose a new embedding method for reversible data hiding. Unlike traditional methods using difference- expansion or feature modifications, we propose an even- and odd-number-based embedding method. This method is implemented in a prediction error image. The experimental results show that our embedding method can achieve satisfactory embedding capacity and image quality.
DVC Based Stereoscopic Video Transmission in a Mobile Communication System
Authors: A. B. B. Adikari, W. A. C. Fernando, W. A. R. J. Weerakkody, A. Kondoz, J. L. Martínez, P. Cuenca
Venue: Proceedings of the 2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies (2008)

Distributed Video Coding (DVC) is an emerging video coding approach, particularly attractive due to its flexibility to implement low complex encoders. This feature could be very effectively utilized in a number of video sensor based application scenarios. However, DVC is still in the process of development and currently available codec implementations are mainly based on monoscopic implementations. In this paper, we analyze the performance of a stereoscopic DVC codec in a wireless error prone channel. Simulation results show that the DVC stereoscopic codec outperforms the H.264/AVC I-P-I-P codec (v10.1/baseline profile); particularly at low signal to noise ratio (SNR) levels of the channel, thus proving stereoscopic DVC to be a viable option to be used very effectively for video communications.
An improved BP neural network for wastewater bacteria recognition based on microscopic image analysis
Authors: Li Xiaojuan, Chen Cunshe
Venue: WSEAS Transactions on Computers (2009)

The microscopic images of wastewater bacteria are analysed, and a scheme for classification and recognition for wastewater bacteria based on microscopic images analysis are put forward in the paper. An adaptive and enhanced edge detection solution for the images of wastewater bacteria is proposed, which can effectively remove noises in the images and get clear edges of microscopic image by optimizing segmentation threshold and the varied order of edge detection. Seven contour invariant moment features and four morphological features are extracted by analysis of microscopic images of wastewater bacteria in which six features are chosen by PCA in order to reduce the dimensionality of the features extracted from the images. A self-adaptive accelerated BP algorithm is developed for training the classification of bacteria microscopic images. The proposed method is tested with CECC database and the results show that the presented image recognition solution is effective and can greatly improve the speed and consistency in performing large-scale surveys or rapid determination of bacterial abundance, morphology.
Systematic architecture exploration based on optimistic cycle estimation for low energy embedded processors
Authors: Ittetsu Taniguchi, Murali Jayapala, Praveen Raghavan, Francky Catthoor, Keishi Sakanushi, Yoshinori Takeuchi, Masaharu Imai
Venue: Proceedings of the 2009 Asia and South Pacific Design Automation Conference (2009)

Systematic architecture exploration from vast solution space is a complex problem in embedded system design. It is very difficult to explore a best architecture fast and accurately because accurate evaluation usually consumes significant amount of time for point in the solution space. In this paper, we propose fast and systematic architecture exploration method for address generation unit (AGU) based on a coarse grained reconfigurable architecture model. First we prove that a set of Pareto solutions of cycle vs energy becomes a subset of Pareto solutions of cycle vs area under some practical assumptions. In addition we propose "Optimistic cycle (OC)" metric to find out promising solutions from vast solution space. Based on this metric we also propose a fast architecture exploration algorithm which only applies mapping to promising architectures. Using the proposed systematic architecture exploration method, we show that we can obtain almost the same trade-off points as the exhaustive search method and also that our method is about 164 times faster than exhaustive search.
SEI
Authors: Makoto Danjo, Hiroko Uchiyama
Venue: Proceedings of the 2008 International Conference on Advances in Computer Entertainment Technology (2008)

This is an interactive installation with which one can gradually appreciate artwork by maintaining a calm and peaceful state, both physically and spiritually. Japan has long embraced the custom of cherishing a sense of tranquility. Potential subjects of stillness can be time, space or human motion. For example, in the art of tea ceremony, a Japanese tradition, quiet time and quiet space are treasured. In kendo, the marshal art of swordsmanship, they meditate in order to achieve a state of deep mental concentration. Installation works in the past often featured major changes due to dynamic human actions. With this installation, however, unlike other previous works, the participant can experience the work by cherishing stillness.
An asynchronous nonblocking coordination and synchronization protocol for a parallel robotic control kernel
Authors: Philippe Stellwag, Wolfgang Schröder-Preikschat, Daniel Lohmann
Venue: Proceedings of the Second Workshop on Isolation and Integration in Embedded Systems (2009)

Over the last 25 years, performance improvements by the steady increase of CPU clock frequencies were the driving factor for innovations in the domain of computationally intensive embedded applications. Now the free lunch is over [12] --- developers have to parallelize their systems in order to achieve further improvements by integration of multi-core platforms. In embedded systems, this is even more challenging than in the domain of desktop computers, as safety properties and hard real-time constraints impose a much stronger demand on determinism. In this experience report, we present a concrete coordination and synchronization problem for a double buffering procedure that arose on our ongoing attempts to parallelize a robotic control kernel. This double buffering procedure used by two tasks must assure a consistent data flow without data losses. Therefore, we approach a fast bounded wait-free solution, which does not suffer from priority inversion.
A High Performance H.264 Deblocking Filter
Authors: Vagner Rosa, Altamiro Susin, Sergio Bampi
Venue: Proceedings of the 3rd Pacific Rim Symposium on Advances in Image and Video Technology (2009)

Although the H.264 Deblocking Filter process is a relatively small piece of code in a software implementation, profile results shows it cost about a third of the total CPU time in the decoder. This work presents a high performance architecture for implementing a H.264 Deblocking Filter IP that can be used either in the decoder or in the encoder as a hardware accelerator for a processor or embedded in a full-hardware codec. A developed IP using the proposed architecture support multiple high definition processing flows in real-time.