Miracle-dz/UniFAR-FTUs huggingface dataset:
Exploiting the Heavyweight Ontology with Multi-Agent System Using Vocal Command System: A Case Study on E-Mall

With the explosive growth of internet, the precision rate of extracted information from web is decreasing day by day. Several search engines and information fetching tools are available on internet. For the most, these search engines are keyword based. This poses a problem for visually impaired people who want to get the full use from online resources available to other users. Visually impaired users require special aid to get along with any given computer system. Interface and content management are no exception, and vocal tools are required to facilitate the extraction of relevant information from the internet for visually impaired users. Multi-Agent System has proven itself in recent years, an efficient technology to cope with challenging development issues of heterogeneous complex systems. In this research we exploited the heavyweight ontology with multi-agent system to resolve the burning issue of autonomous information extraction using built-in vocal command system. JADE (Java Agent Development Environment), OWL-2 (Web Ontology Language-2) and PAL (Protege Axiom Language) are the underlying technologies, which are used in development of autonomous prototype. A number of experiments were performed to judge the performance prototype software.
Novel geometrical supervised-learning scheme

This paper describes a novel learning scheme derived from a geometrical study of a onelayer autoassociative neural net that possesses hard limited neuron response functions. It is a study of the nonlinear mapping relations based on the concept of convex cone in the Ndimensional state space. (N is the nurrber of neurons in the neural system. ) This theoretical approach then allows us to derive a new learning scheme that appears to have many advantages over the conventional systems. 1 . It is a very fast and efficient onestep learning scheme . It does not require iteration processes to achieve the learning. 2 . Learning new mappings will not destroy old mappings already learned. 3. Learning of DISCRETE (or binery) mapping relations allows us to do pattern recognition in CONTINUOUS (analog) manner. 4. The maximum capacity of learning is much larger than those of the conventional systems. 5. It should be very easy to implement with conventional electronic coriponents. I . IrRWlXTI Supervised learning of a neural net has been studied quited extensively in the past decade. Besides the classical outerproduct rule [1] and the Ilebb'' 5 rule [2] many other supervised learning rules have also been studied and applied in practical areas. Rumelhart Hinton and Williams [3] derived the delta learning rule based on the gradient descent iteration approach. Widrow Hoff al et [46] derived another learning rule that forces
Using videotex for shopping - a qualitative analysis

Abstract Public access computer systems, e.g. videotex, enable the development of value added services such as teleshopping and telebanking. Potential users may not have any significant experience of computers, or indeed any interest in learning how to operate them. The computers, therefore, need to be simple to use. This paper attempts to identify features of the teleshopping task which contribute to problems of usability. This identification is a pre-requisite for subsequent experimental evaluation and system optimization. First, transactions are described in terms of a general model of the task. The videotex form of a particular transaction-shopping - is then examined and expectations of sources of difficulty are derived. The data from an observational study are used to identify sources of difficulty and to establish a set of operationalizable system variables contributing to user difficulties and errors. A model of the user is then described which accounts for such problems of usability in terms of mi.
Resistive interpolation biasing: a technique for compensating linear variation in an array of MOS current sources

A new technique called resistive interpolation biasing for accurately biasing a large number of analog cells on a VLSI chip is presented. Variations in oxide thickness, mobility, doping concentration, etc., cause inaccuracies in current ratios of two identically biased transistors if they are placed sufficiently far apart on a chip. The proposed technique compensates for these inaccuracies without using any sampling or switching. The technique has been verified using a 2 /spl mu/m n-well CMOS process. Measurements show a factor of 3 improvement in terms of current ratio accuracy when the resistive interpolation technique is used. The circuit can be implemented with a small chip area and low power dissipation. This technique finds applications where extensive current duplication over a large area is required (e.g., analog memories, D/A converters, continuous-time filters, imaging arrays, neural networks, and fuzzy logic systems). >
L2 Morphosyntactic Development in Text-Based Computer-Mediated Communication

It has been claimed that CMC represents an ideal environment for promoting L2 development. Previous findings have shown the use of more complex structures in the target language in elec-tronic versus face-to-face environments (e.g., Beauvois, 1992; Kelm, 1992; Kern, 1995; Warschauer, 1996a,b). The present study compares the effect of pedagogical tasks implemented in synchronous face-to-face tasks versus text-based computer mediated communication. The target grammatical feature is the development of past tense verbal endings in Spanish as a second language. The analysis reveals that the first signs of change in developmental stages of morphosyntactic development are more clearly identified in the computer based interaction task than in the face-to-face oral task. It is, thus, possible that aspectual distinctions marked through morphosyntactic means are made more salient in a written interactional format that maintains the functional focus of typical on-line face-to-face exchanges.
A Systematic Approach to Generate and Conduct Destructive Security Test Sets

Security testing involves two approaches; the question of who should do it has two answers. Standard testing organizations using a traditional approach can perform functional security testing. For example, ensuring that access control mechanisms work as advertised is a classic functional testing exercise. Systematic security testing approaches should be seamlessly incorporated into software engineering curricula and software development process. Traditional software engineering textbooks failed to provide adequate methods and techniques for students and software engineers to bring security engineering approaches to software development process generating secure software as well as correct software. This paper argues that a security testing phase should be added to software development process with systematic approach to generating and conducting destructive security test sets following a complete coverage principle. Software engineers must have formal training on writing secure code. The security testing tasks include penetrating and destructive tests that are different from functional testing tasks currently covered in software engineering textbooks Moreover, component-based development and formal methods could be useful to produce secure code, as well as automatic security checking tools. Some experience of applying security testing principles in our software engineering method teaching is reported.
Design and development of robust ATP subsystem for the Altair UAV-to-ground lasercomm 2.5-Gbps demonstration

A robust acquisition, tracking and pointing (ATP) subsystem is being developed for the 2.5 Gigabit per second (Gbps) Unmanned-Aerial-Vehicle (UAV) to ground free-space optical communications link project. The demonstration will gather HDTV images of regions of geological interest (e.g. volcanic) and then downlink those images to ground receivers at a range of 50 km while the UAV is at an altitude of 18 km. With a 200 mW downlink laser at 1550 nm for a BER of 1E-9, the pointing requirements on the flight terminal are a jitter error of 19.5 urad and a bias error of 14.5 urad with a probability of pointing induced fades of 0.1 %. In order to mitigate the effect of atmospheric fades and deal with UAV flight and vibration uncertainties (relatively new craft) the ATP subsystem requirements have been set to a stringent level in order to assure success of the communication link. The design, analysis and development of this robust ATP subsystem will be described in this paper. The key innovations that have been developed to make the ATP subsystem robust are i) the application of inertial sensors to make the acquisition and tracking functions tolerant to atmospheric fades, ii) the usage of active exposure control to provide a 16 dB dynamic range on the Focal Plane Array (FPA) tracking window, and iii) the introduction of a second ultra wide field of view camera to assure acquisition of the ground beacon.
Accuracy and stability tradeoffs in multirate simulation

Many dynamic systems can be separated into identifiable fast and slow subsystems. Computational efficiency in simulating such systems can be improved significantly by using a faster integration frame rate (smaller integration time step) in the numerical simulation of the fast subsystems, compared with the frame rate used for the slow subsystems. In real- time simulations the use of multi-rate simulation may be the only way in which acceptable real-time accuracy can be achieved using a given processor. To convert slow data- sequence outputs form the slow-subsystem simulation to the required fast data sequence inputs for the fast subsystems, extrapolation formulas must be used. Overall simulation accuracy can be improved by using high-order extrapolation formulas. On the other hand, the use of high-order extrapolation can result in numerical instability, especially when the fast and slow subsystems are tightly coupled. Thus there is an accuracy-stability tradeoff in the choice of extrapolation formulas for the slow-to-fast data sequence conversion. In this paper the problem is studied by using fast and slow second-order systems connected in a feedback loop. For various levels of coupling between the two subsystems, dynamic accuracy and numerical stability of the overall simulation is studied. To reduce the number of parameters needed to describe the dual-speed system, the bandwidth of the fast subsystem is assumed to be infinite, with an exact simulation achieved by using an infinite integration frame rate. Numerical stability of the multi-rate simulation is studied by examining the stability boundaries in the λh plane, where λ is the eigenvalue of the overall system and h is the time-step used in numerical simulation of the slow subsystem. For various levels of coupling between fast and slow subsystems, it is shown that the λh-plane stability boundaries shrink when higher-order extrapolation is used for slow-to-fast data sequence conversion. On the other hand, overall simulation accuracy improves with the use of the higher order extrapolation formulas.
Gigabit Ethernet and ATM in high speed arena

Although Gigabit Ethernet has been wrongly perceived as a competitor to asynchronous transfer mode (ATM), each has its own place in the grand scheme. This perceived competition has caused users to hesitate in their migration to ATM. This study presents a reality check on the two technologies. It addresses the pros and cons of selecting each network based on some criteria.
How to pass your European Spirometry Driving test!

The information in this editorial is designed to inform Breathe readers about the European Spirometry training programme leading to the ERS Spirometry Driving Licence. The vital role of spirometry in the diagnosis and management of respiratory disease is undisputed [1, 2]. Standardisation of spirometry, access to spirometers and use of accurate and reliable spirometry measurements are requirements central to the treatment of lung diseases [3, 4]. Are you aware that: European Respiratory Society (ERS) have recognised the need to standardise spirometry practice with the publication of the ERS/American Thoracic Society (ATS) guidelines, Standardisation of Lung Function Testing 2005 [4]. In recent years, a number of new spirometers have been introduced to the market, some of which have been independently validated and the ERS Buyers' Guide also offers guidance to those performing spirometry in practice. However, to date, there has been relatively little achieved in the standardisation of training and education in spirometry measurement across Europe. Although efforts have been made in a number of European countries to train health professionals at a national and local level, results of an ERS survey 2012 highlight that content and duration of training vary widely and few training programmes are recognised by a professional body [8]. What do we learn from this? Although a number of quality spirometers are now available with guidelines available on lung function testing, no …
Nonlinear controller design for a crane system with state constraints

For a crane system in which the trolley stroke and the pendulum length are constrained to move in a specified range, a stabilizing control law that damps the pendulum oscillation quickly has been proposed using the Lyapunov's second method. In deriving the law, all the nonlinearities of the system are considered. The control system has the structure where the trolley and the load are moved according to sinusoidal reference functions generated from the pendulum trajectory The results of a numerical experiment show that the design method realizes high performance control system with some robustness with respect to parameter variations in the controlled system.
Can MS/OR Sell Itself Well Enough?

Apparently MS/OR is being overtaken by newer decision aids such as decision support systems (DDS), and in addition, MS/OR has not received credit for its real contributions. This is a consequence of a narrow view of MS/OR emphasizing mathematics and neglecting such aspects as experimentation, heuristics, and modeling. A broad view of MS/OR consistent with its origins leads to a wider market of applications but risks psychological and political complications. We need to (1) take full advantage of computing hardware and software, (2) emphasize prototyping, heuristics, and modeling, as well as mathematics, and (3) promote our work not just in academic journals, but also in trade and management publications.
Digital signal processing techniques for high accuracy ultrasonic range measurements

Several digital signal processing (DSP) methods are analyzed and compared with respect to the expected errors for an ultrasonic range measurement arrangement. These include L1, L2 norms and correlation with different approaches for envelope extraction. The influence of different factors such as signal-to-noise ratio (SNR), sampling frequency, and digitizing resolution on measurement errors is analyzed using a synthetic approach through nearly 40000 simulations. Results show different performance levels involving accuracy, computing time, and cost for the studied methods, although all of them allow reduction of errors by several orders of magnitude. >
Modeling Architectural Strategy Using Design Structure Networks

System architects face the formidable task of purposefully shaping an evolving space of complex designs. Their task is further complicated when they lack full control of the design process, and therefore must anticipate the behavior of other stakeholders, including the designers of component products and competing systems. This paper presents a conceptual tool called a design structure network (DSN) to help architects and design scientists reason eectively about these situations. A DSN is a graphical representation of a system’s design space. DSNs improve on existing representation schemes by providing a compact and intuitive way to express design options—the ability to replace all or part of one design with another. Design options, in turn, are the building blocks of architectural strategy—the practice of designing systems with an awareness that the fortunes of other designers are intertwined with one’s own. I illustrate the informal use of design structure networks with an example based on Apple’s decision to adopt the Intel processor architecture. I also show how DSNs can serve as a formal foundation for economic models of architectural strategy, which I call system design games.
Scheduling parallel batch processing machines with arbitrary job sizes and incompatible job families

Motivated by a bottleneck operation in an MLCC (multi-layer ceramic capacitor) production line, we study the scheduling problem of parallel batch processing machines in which a number of jobs can be processed simultaneously in a machine as a batch. Volumes of the jobs are different from each other and each job belongs to the family in which all jobs have the same processing time. In this situation, we analyse three kinds of problems whose performance measures are makespan, total completion time, and total weighted completion time, respectively. Since these problems are known to be NP-hard, we propose a number of heuristics and design genetic algorithms for the problems. Through some computational experiments, we evaluate the performances of the heuristic algorithms proposed, including the genetic algorithms for each of three problems.
A dynamic model for rule induction tasks

In this paper, a model for performance on rule induction tasks (e.g., items on intelligence tests) is developed. The model simultaneously specifies distributions for response times and response accuracies on an item-by-item basis. It is dynamic in the sense that it can be used to specify and test different ways of learning throughout a test. Three versions of the general model (i.e., with three different learning rules) are described and the fit of these versions is investigated in two datasets on solving number series. The results indicate that one of these versions (one of the learning rules) is better at accounting for the data.
Research of three level match method about semantic web service based on ontology

An important step of Web service Application is the discovery of useful services. Keywords are used in service discovery in traditional technology like UDDI and WSDL, with the disadvantage of user intervention, lack of semantic description and low accuracy. To cope with these problems, OWL-S is introduced and extended with QoS attributes to describe the attribute and functions of Web Services. A three-level service matching algorithm based on ontology and QOS in proposed in this paper. Our algorithm can match web service by utilizing the service profile, QoS parameters together with input and output of the service. Simulation results shows that it greatly enhanced the speed of service matching while high accuracy is also guaranteed.
Citation analysis and research assessment in the United Kingdom

E valuation of publicly funded university research in the United Kingdom has been conducted through a series of Research Assessment Exercises (RAEs) in 1992, 1996 and 2001. The results of the RAEs have been used as a factor in the calculation of public funds for distribution to universities for research. The primary mechanism used for the research evaluation has been direct peer review of submissions and publications from university departments. The conduct of the RAEs, the public debate generated and a recent central government report of future research evaluation has generated issues relevant to other jurisdictions and to the interest in research evaluation within information science. In particular, a crucial transformation in the value of citation analysis in research evaluation can be detected. Two antithetical viewpoints on the appropriate relation of citation analysis to the RAEs have coexisted within information science, developing since the mid-1990s. The dominant approach established strong correlations between rankings of entities for research assessment derived from citation analyses and from RAE grades. Replacement of the process of peer review embodied in RAE procedures by an ordering (and conversion of the ordering into grades) determined by the results of citation analyses was then advocated on the grounds of broad equivalence of results and lower relative costs. An alternative perspective (articuCitation Analysis and Research Assessment in the United Kingdom
The California State University E-book Pilot Project: implications for cooperative collection development&&

Abstract The California State University conducted a year-long study of the use of a collection of NetLibrary e-books in its libraries. The purpose of the study was to introduce e-books, and develop a model for cooperative collection development of a shared electronic monograph collection. Title usage and subject usage statistics were examined, as well as a user survey. Challenges in analyzing e-book usage statistics are discussed, and positive user feedback is reported. Strategies are presented for cooperatively developing a shared collection of electronic monograph literature.
Cryptanalysis of Vaidya et al.’s User Authentication Scheme with Key Agreement in Wireless Sensor Networks

User authentication in wireless sensor networks (WSN) is critical due to their unattended and even hostile deployment in the field. The open environment of WSN requires mechanisms which prevent unauthorized user from accessing the information from WSN. Recently, M.L. Das proposed a two-factor user authentication scheme in WSN and claimed that his scheme is secure against different kinds of attack. However, Khan et. al. and Vaidya et. al. show that the M.L. Das's scheme does not provide mutual authentication between the gateway node and sensor nodes and is vulnerable to gateway node bypassing attack and privileged-insider attack. Chen-Shih point out that Das's scheme cannot resist parallel session attack. Moreover, they proposed improved schemes based on Das's user authentication scheme. Among the three improved schemes, Vaidya et. al.'s scheme is the most secure against different kinds of attack. Though Vaidya et. al. claim that their scheme is robust to various attacks, unfortunately, we find that their scheme still suffers from user impersonation attack, forgery attack with node capture and sensor node impersonation attack.
Neutral networks in an evolutionary robotics search space

Recent work has argued for the importance of non-adaptive neutral evolution in optimisation over difficult search landscapes. We show that the search process underlying a difficult evolutionary robotics problem does indeed show phases of neutral evolution. The noise in evaluated fitness of a single genotype is shown to be able to account for the variance in fitness across a long period of the evolutionary run. We further show that the population moves significantly in genotype space during this neutral phase, possibly increasing in divergence. Finally, we investigate the probabilities of mutating to a higher fitness, above the neutral plateau, and find no evidence for a significant upward trend in these probabilities before the crucial mutations actually occurred.
A Secure Mobile-IPv6 Network Model

Mobile-IPv6 technology brings us convenient but also produces a series of security issues. Virtual private networks allow two or more parties to communicate securely over a public network. VPNs provide the assurance such as confidentiality, host authentication and data integrity by using cryptographic algorithms and protocols. In this article the concepts of mobile IP was introduced and the security problem was analyzed. A VPN implemented with the IP Security Protocol (IPSec) is presented to protect the communication between Mobile Node and Home Agent. According to special demands of mobile network, a secure mobile-IPv6 network model is presented based on IPSec. With this kind of model the high security and reliability can be achieved.