ppxscal/embedding_network huggingface dataset:
Future of multi-hopping: from theory to practice
Authors: Konstantinos Psounis
Venue: Proceedings of the tenth ACM international symposium on Mobile ad hoc networking and computing (2009)

The research community has been fascinated by the challenges posed by multi-hopping for over a decade, and has produced a number of interesting theoretical results and innovative solutions for many of these challenges. However, despite the plethora of envisioned applications for many multi-hop architectures, e.g. mesh, sensor, and ad-hoc, the reality is that there are only a few real-world success stories involving multi-hopping. The panel plans to discuss how we can move more effectively from theory to practice, and debate whether it is a matter of time for more real-world applications to materialize, or cost-related and other real-world considerations will restrict the use of multi-hopping to only a few specialized applications.
Research on Distributed Data Mining Tool Used in Control System
Authors: Yuekun Ma, Zhigang Li, Shuli Yu, Lei Chen
Venue: Proceedings of the 2009 International Conference on Advanced Computer Control (2009)

In this paper, A distributed data mining tool that suitable for distributed and isomeric database environment of intelligent control system by borrowing ideas from architecture of grid is introduced. It can also perform incremental data mining based on history mining result. This tool makes full use of Metadata of each kind of resources. The resources associated in the data mining are all packed into form of web service, which is give a description by respective attribute document of the XML format. SOAP takes charge of the communication between the separated parts of the whole data mining process.
Development of a web database portfolio system with PACS connectivity for undergraduate health education and continuing professional development
Authors: Curtise K. C. Ng, Peter White, Janice C. McKay
Venue: Computer Methods and Programs in Biomedicine (2009)

Increasingly, the use of web database portfolio systems is noted in medical and health education, and for continuing professional development (CPD). However, the functions of existing systems are not always aligned with the corresponding pedagogy and hence reflection is often lost. This paper presents the development of a tailored web database portfolio system with Picture Archiving and Communication System (PACS) connectivity, which is based on the portfolio pedagogy. Following a pre-determined portfolio framework, a system model with the components of web, database and mail servers, server side scripts, and a Query/Retrieve (Q/R) broker for conversion between Hypertext Transfer Protocol (HTTP) requests and Q/R service class of Digital Imaging and Communication in Medicine (DICOM) standard, is proposed. The system was piloted with seventy-seven volunteers. A tailored web database portfolio system (http://radep.hti.polyu.edu.hk) was developed. Technological arrangements for reinforcing portfolio pedagogy include popup windows (reminders) with guidelines and probing questions of 'collect', 'select' and 'reflect' on evidence of development/experience, limitation in the number of files (evidence) to be uploaded, the 'Evidence Insertion' functionality to link the individual uploaded artifacts with reflective writing, capability to accommodate diversity of contents and convenient interfaces for reviewing portfolios and communication. Evidence to date suggests the system supports users to build their portfolios with sound hypertext reflection under a facilitator's guidance, and with reviewers to monitor students' progress providing feedback and comments online in a programme-wide situation.
Collective Management of Medical Information in a Decision Support System
Authors: Eunjeong Park, Heonshik Shin, Hyo Suk Nam
Venue: Proceedings of the 2009 International Asia Conference on Informatics in Control, Automation and Robotics (2009)

Collective management of patient records enhances the ability to identify disease and supporting treatment decisions. We propose a Web-based system for the collective management of medical information for stroke patients. Our system collects data about acute stroke patients, allows physicians to collaborate over the Internet, simplifies physician reporting, improves the management of results from various evaluation steps, and supports treatment decisions. By providing timely guidance on rapid evaluation and treatment of time-dependent diseases such as acute stroke, which need fast and consistent communication between medical service providers, our system can improve patient outcomes.
Control Concept for a Hydraulic Mobile Machine Using a Haptic Operating Device
Authors: Henning Hayn, Dieter Schwarzmann
Venue: Proceedings of the 2009 Second International Conferences on Advances in Computer-Human Interactions (2009)

A control methodology for the operation of a hydraulic excavator using a haptic operating device is developed. The main idea is to use position controllers for both the excavator and the operating device where both control loops output the reference position to the other, i.e., two position controlled systems are placed in a feedback loop with each other. The human operator acts as an input disturbance to the operating device. This approach allows intuitive operation of the machine and gives the operator haptic feedback of the boom position.Internal model control (IMC) is employed to design the position controllers for both the hydraulic manipulator and the operating device. To this end, a simplified design rule for the IMC filter and a novel anti-windup approach for models with pure integrators are proposed.The master-slave control methodology is exemplified on an 18 ton excavator; measurement results are given.
A New Linear Group-Wise Parallel Interference Cancellation Detector
Authors: A. Bentrcia, A. Zerguine
Venue: Wireless Personal Communications: An International Journal (2009)

In this paper, a new linear group-wise parallel interference cancellation (LGPIC) detector is proposed. Four different group-detection schemes are derived, namely, the linear group matched filter PIC (LGMF-PIC) detector, the linear group decorrelator PIC (LGDEC-PIC) detector, the linear group minimum mean square error PIC (LGMMSE-PIC) detector and the linear group parallel interference cancellation weighted PIC (LGPIC-PIC) detector. The convergence behavior of the proposed detector is analyzed and conditions of convergence are derived. Finally, extensive simulations regarding the convergence behavior and the effect of the grouping on the convergence behavior of the proposed LGPIC detector are conducted.
Short-random request absorbing structure with volatile DRAM buffer and nonvolatile NAND flash memory
Authors: Seung-Ho Park, Jung-Wook Park, Shin-Dug Kim
Venue: Proceedings of the 3rd WSEAS international conference on Computer engineering and applications (2009)

This paper is to design a short-random request absorbing structure which can be constructed with volatile DRAM buffer and nonvolatile flash memory chips. Specifically, major weakness of NAND flash memory mostly comes from frequent short and random writes spreading in the whole logical address space, causing writing performance decrease. This phenomenon occurs because NAND flash memory does not allow in-place overwriting and some additional blocks are required for block updates. When short-random writes are frequently generated to use the limited number of update blocks, performance decreases significantly. Thus, a short-random absorbing DRAM buffer is designed to reduce such overhead. Especially the allocated blocks for update are divided into DRAM blocks and NAND chain-blocks according to the length of any writing request. Consequently it avoids several unnecessary erase operations and page copy operations. The trace based simulation result shows higher writing performance can be achieved in all sorts of traces, reducing block erase count with only 64Mbytes of DRAM writing buffer, where the overall erase count can be reduced by around from 24.35 percent to 8.08 percent compared to the SSD structure without any DRAM buffer. Thus, the proposed method can achieve scalable access performance, while minimizing the erase count and extending device lifetime.
The Measurement and Maintenance System of the VRLAB Based on RFID
Authors: Shifeng Yang, Songtao Jin, Zheng Xu
Venue: Proceedings of the 2009 International Asia Conference on Informatics in Control, Automation and Robotics (2009)

RFID technology, USB communication technology, on-line battery internal resistance monitoring technology and virtual instrument host computer scheme with database technique was adopted to establish an original VRLAB detection and maintenance system, whilst the software and hardware design was completed. Current system has solved the problem of wasting time and workforce existing in the VRLAB when detecting battery capacity, in the mean time, battery maintenance and estimate of the impaired capability could also be achieved. Process of experiment suggested that current system has considerably improved the efficiency of capacity measurement and maintenance of the VRLAB, meanwhile, accuracy of discretion could be improved. The cost of battery detection and maintenance has been saved exactly.
Research on Improved Weighted Fuzzy Clustering Algorithm Based on Rough Set
Authors: Jian-guo Li, Jing-wei Gao
Venue: Proceedings of the 2009 International Conference on Computer Engineering and Technology - Volume 02 (2009)

Clustering is used to find out the objects that resemble each other and compose different groups, cluster analysis is an important job in data mining. Thisarticle brings the rough set into fuzzy cluster, by using the methods of attributes contracted in the rough set theory to improve the FCM algorithm; the improvedalgorithm had been proved a high precise ratio.
The role of digital educative material in effective teachings
Authors: Dragana Glusac, Zolt Namestovski
Venue: Proceedings of the 8th WSEAS international conference on Distance learning and web engineering (2008)

A multidisciplinary team of the project which consisted of a programmer, a pedagogue, a psychologist, scientists and a professor took on an action which specifies using the technology of information and communication as an educative system in elementary school. In order to do so a new multimeda software the Digital Map of Vojvodina is projected which implements the educative process of the lower classes in the elementary school. Three studies show that the usage of such methods led to more effective results in teachings of three subjects in the lower grades. Also students were more motivated. The empirical verification gave positive results. The study describes the software and the methodology.
Towards reliable trust establishment in grid: a pre-evaluating set based bias-tuned method for dishonest feedback filtering
Authors: Xuejun Yang, Xiangli Qu
Venue: Proceedings of the 2006 International Conference on Privacy, Security and Trust: Bridge the Gap Between PST Technologies and Business Services (2006)

Reputation-based trust system emerges as a promising mechanism for trust establishment between unknown entities in Grid, in which the reliability of first-hand ratings plays a crucial part. In this paper, we propose a pre-evaluating set based bias-tuned approach for dishonest feedback filtering in such system, which has taken reputation's subjective feature and Grid entity's prevailing strangeness into consideration. The basic idea for filtering is to find inconsistency between a rater's ratings and his usual rating habit. The introduction of the pre-evaluating set is to provide a way for rating habit tracking. The proposed filtering method consists of two parts: "credibility filtering" and "on-spot filtering". The former tries to find inconsistency in ratings given to entities familiar to the current evaluator. And the latter tries to find inconsistency in the current retrieved rating. In combination of the two parts, we can effectively filter out dishonest feedbacks and retain honest ones to a large extent.
String Bowing Gestures at Varying Bow Stroke Frequencies: A Case Study
Authors: Nicolas Rasamimanana, Delphine Bernardin, Marcelo Wanderley, Frédéric Bevilacqua
Venue: Gesture-Based Human-Computer Interaction and Simulation: 7th International Gesture Workshop, GW 2007, Lisbon, Portugal, May 23-25, 2007, Revised Selected Papers (2009)

The understanding of different bowing strategies can provide key concepts for the modelling of music performance. We report here an exploratory study of bowing gestures for a viola player and a violin player in the case of bow strokes performed at different frequencies. Bow and arm movements as well as bow pressure on strings were measured respectively with a 3D optical motion capture system and a custom pressure sensor. While increasing bow stroke frequency, defined as the inverse time between two strokes, players did use different bowing movements as indicated from the measurement of bow velocity and arm joint angles. First, bow velocity profiles abruptly shift from a rectangle shape to a sinus shape. Second, while bow velocity is sinusoidal, an additional change is observed: the wrist and elbow relative phase shifts from out-of-phase to in-phase at the highest frequencies, indicating a possible change in the players coordinative pattern. We finally discuss the fact that only small differences are found in the sound while significant changes occur in the velocity / acceleration profiles.
Supporting security against SYN flooding attacks in distributed denial-of-service via measuring internet protocol flow information export-based traffic
Authors: H. Alipour, M. Esmaeili, Kashefi Kia
Venue: International Journal of Electronic Security and Digital Forensics (2009)

Distributed denial-of-service (DDoS) attacks on public servers after 2000 have became a serious problem. In the DDoS attacks often seen recently, multiple distributed nodes concurrently attack a single server. To assure that essential network services will not be interrupted, faster and more effective defence mechanisms are needed to protect against malicious traffics, especially SYN floods. One of the problems in detecting SYN flood traffics is that server nodes or firewalls cannot distinguish the SYN packets of normal TCP connections from those of a SYN flood attack. Our method, FDFIX, relies on the use of monitoring and measurement techniques to evaluate the impact of denial-of-service (DoS) attacks. It uses flow-based measurements. Capturing flow information is very important for detecting DoS and other kinds of attacks. Flow monitoring allows detecting suspicious traffics, and in the next step can analyse attacking flows and the results can be used for defence methods. Our method provides required information for many mechanisms that use traffic measurement as its input.
A Design Space Comparison of 6T and 8T SRAM Core-Cells
Authors: Florian Bauer, Georg Georgakos, Doris Schmitt-Landsiedel
Venue: Integrated Circuit and System Design. Power and Timing Modeling, Optimization and Simulation: 18th International Workshop, PATMOS 2008, Lisbon, Portugal, September 10-12, 2008. Revised Selected Papers (2009)

We present a comparison of 6T and 8T SRAM design spaces for low-power 65 nm and 45 nm CMOS technologies based on simulations using a multi-objective optimization framework. The influence of a bit-line column multiplexer (MUX) on the 8T design space is shown. We demonstrate that 6T and 8T cells show differing area scaling behavior across the whole design space. We identify points on the area-performance trade-off curves that bound regions where either 6T or 8T SRAM cells are optimal.
A security-aware metamodel for multi-agent systems (MAS)
Authors: G. Beydoun, G. Low, H. Mouratidis, B. Henderson-Sellers
Venue: Information and Software Technology (2009)

This paper adopts a model-based security (MBS) approach to identify security requirements during the early stages of multi-agent system development. Our adopted MBS approach is underpinned by a metamodel independent of any specific methodology. It allows for security considerations to be embedded within any situated agent methodology which then prescribes security considerations within its work products. Using a standard model-driven engineering (MDE) approach, these work products are initially constructed as high abstraction models and then transformed into more precise models until code-specific models can be produced. A multi-agent system case study is used to illustrate the applicability of the proposed security-aware metamodel.
Multi-scale, multi-resolution brain cancer modeling
Authors: Le Zhang, L. Leon Chen, Thomas S. Deisboeck
Venue: Mathematics and Computers in Simulation (2009)

In advancing discrete-based computational cancer models towards clinical applications, one faces the dilemma of how to deal with an ever growing amount of biomedical data that ought to be incorporated eventually in one form or another. Model scalability becomes of paramount interest. In an effort to start addressing this critical issue, here, we present a novel multi-scale and multi-resolution agent-based in silico glioma model. While 'multi-scale' refers to employing an epidermal growth factor receptor (EGFR)-driven molecular network to process cellular phenotypic decisions within the micro-macroscopic environment, 'multi-resolution' is achieved through algorithms that classify cells to either active or inactive spatial clusters, which determine the resolution they are simulated at. The aim is to assign computational resources where and when they matter most for maintaining or improving the predictive power of the algorithm, onto specific tumor areas and at particular times. Using a previously described 2D brain tumor model, we have developed four different computational methods for achieving the multi-resolution scheme, three of which are designed to dynamically train on the high-resolution simulation that serves as control. To quantify the algorithms' performance, we rank them by weighing the distinct computational time savings of the simulation runs vs. the methods' ability to accurately reproduce the high-resolution results of the control. Finally, to demonstrate the flexibility of the underlying concept, we show the added value of combining the two highest-ranked methods. The main finding of this work is that by pursuing a multi-resolution approach, one can reduce the computation time of a discrete-based model substantially while still maintaining a comparably high predictive power. This hints at even more computational savings in the more realistic 3D setting over time, and thus appears to outline a possible path to achieve scalability for the all-important clinical translation.
Infant Identification from Their Cry
Authors: Hemant A. Patil
Venue: Proceedings of the 2009 Seventh International Conference on Advances in Pattern Recognition (2009)

Cry is the only means of communication for an infant. Understanding the properties of infant cry is very crucial for establishing a basis for using cry as a tool for pathological diagnosis or possibly identifying infants. In this paper, an attempt is made to identify infant from their cry. The experiments are shown for Linear Prediction Coefficients (LPC), Linear Prediction Cepstral Coefficients (LPCC), and Mel Frequency Cepstral Coefficients (MFCC)and Teager energy based MFCC(T-MFCC) as input feature vectors to the polynomial classiﬁer of 2nd and 3rd order approximation. Results show that MFCC performs better than other features. This may be due to the fact that MFCC is designed to mimic human perception process and hence represent the perceptually relevant aspects of short-time infant cry spectrum.
Artificial neural network based design of a three-layered microstrip circular ring antenna with specified multi-frequency operation
Authors: K. Siakavara
Venue: Neural Computing and Applications (2009)

This paper deals with the utilization of Artificial Neural Networks (ANN) methodology in the design of microstrip antennas having a priori defined operational features. A printed annular ring antenna, textured by slits, was designed in a multilayered dielectric substrate. The width and the position of the slits along with the values of the structural parameters and the feed position of the antenna affect directly its frequency performance. The inverse problem, namely to find out the proper combination of all these parameter values which would yield the desired frequency response, was solved via a Multiple Layer Perceptron (MLP) Neural Network.
A policy tool on developing a national strategic framework on bridging digital divide: a Malaysian public policy perspective
Authors: Ramasamy Ramachandran
Venue: Proceedings of the 2nd International Conference on Theory and Practice of Electronic Governance (2008)

This paper expounds a methodology of developing a policy tool for developing a National Strategic Framework on Bridging Digital Divide (NSF-BDD) for the Ninth Malaysia Plan (2006--2010). Lack of adequate data Information Communications Technology (ICT) penetration rates in terms of scope, coverage and timeliness were duly addressed through augmenting Population and Housing Census 2000 and Household Income Survey/Household Basic Amenities 2004 records. The augmentation procedures were carried out at mukim level opposed to much sought household or individual level in policy exercises. Appropriate statistical techniques and procedures were given due attention especially addressing sampling fluctuations prevalent in the survey records. The penetration ICT rates that were computed for the years 2000 and 2004 were ranked and converted into index before classifying them into most advanced to least developed mukim. In turn, the indexes were used in classifying all the 927 mukim under 8-S Framework categories namely skaters, striders, sprinters, sliders, strollers, shufflers, starters and sleepers indicating most advanced to least developed. The definition of ICT scoped to radio including Hi-fi, television, personal computer, Internet, telephone, cellular phones and video/VCD/DVD. The exercise illustrated a cheaper and faster means of developing policy relevant data if countries incorporate ICT data collection in census and subsequently in survey probes, as an alternative to conducting time consuming and costly primary data collation approach.