Miracle-dz/UniFAR-FTUs huggingface dataset:
Time-varying filtering using full spectral information for soft-cancellation of FM interference in spread spectrum communications

Time-varying notch filters have been applied to reject FM interference in direct-sequence spread spectrum communications. The time-varying notch filter was formed using instantaneous frequency estimation of the interference regardless of its power or other spectral information. Consequently, when the interference is moderate or weak, the notch filter may cancel more signal than interference, and hence yield a deteriorating system performance. We propose a time-varying filter for soft-cancellation of interference that uses full spectral information about the interference and the desired signal and aims at minimum signal distortion. We model the received signal with a time-varying autoregressive model and form the filter based on the Wiener solution. Simulations reveal its performance improvement over the notch filter based hard-cancellation.
Vers de nouveaux modes de lecture des sources

Introduction Les usages de l’informatique dans les sciences historiques en France sont à peu près aussi anciens que l’ordinateur luimême. La France accueille les premiers supercalculateurs dans les années 1950. Le premier article majeur mentionnant l’usage de méthodes « mécanographiques » le terme informatique n’existe pas encore est publié par les Annales en 1959. François Furet et Adeline Daumard y évoquent les aspects méthodologiques de l’usage de la mécanographie dans la lecture d’archives notariales. Les sciences historiques entrent alors dans une période marquée par l'histoire économique et sociale quantitative fondée sur de grandes séries statistiques, période qui se prête particulièrement bien aux usages informatiques émergents. Dès lors, les historiens – du moins certains d’entre eux – n’ont cessé d’utiliser les outils informatiques.
Survey of Data Mining and Applications (Review from 1996 to Now)

The science of extracting useful information from large data sets or databases is named as data mining. Though data mining concepts have an extensive history, the term “Data Mining“, is introduced relatively new, in mid 90’s. Data mining covers areas of statistics, machine learning, data management and databases, pattern recognition, artificial intelligence, and other areas. All of these are concerned with certain aspects of data analysis, so they have much in common but each also has its own distinct problems and types of solution. The fundamental motivation behind data mining is autonomously extracting useful information or knowledge from large data stores or sets. The goal of building computer systems that can adapt to special situations and learn from their experience has attracted researchers from many fields, including computer science, engineering, mathematics, physics, neuroscience and cognitive science.
Security Enhancement for Protecting Password Transmission

In 2002, Hwang and Yeh proposed some improved schemes to mend several security flaws in the Peyravian-Zunic password transmission scheme and password change scheme. However, this article will point out that there still exist some security flaws in the Hwang-Yeh schemes; at the same time, we shall also propose some improved versions of their schemes.
Computer Mediated Music Production: a Study of Abstraction and Activity

Human Computer Interaction research has a unique challenge in understanding the activity systems of creative professionals, and designing the user-interfaces to support their work. In these activities, the user is involved in the process of building and editing complex digital artefacts through a process of continued refinement, as is seen in computer aided architecture, design, animation, movie-making, 3D modelling, interactive media (such as shockwave-flash), as well as audio and music production. This thesis examines the ways in which abstraction mechanisms present in music production systems interplay with producers' activity through a collective case study of seventeen professional producers. From the basis of detailed observations and interviews we examine common abstractions provided by the ubiquitous multitrack-mixing metaphor and present design implications for future systems.
The Mathematical Theory of Nonblocking Switching Networks

This is the first book to cover comprehensively the mathematical theory of nonblocking switching networks since Benes' book published 30 years ago. Not only is the material on the classical theory of nonblocking and rearrangeable networks updated, but the modern topics on multicast and multirate switching are also surveyed. The author had spent more than 25 years working on switching networks at Bell Laboratories before he started teaching the course at Chiao-Tung University. He has published about 40 papers and obtained a dozen patents on multistage interconnection networks.
Security APIs for Online Applications

Online social networks, in their current form, require users to place a vast amount of trust in the operators of both the core network and the third-party applications they use. Since both of these actors have shown themselves to be untrustworthy in the past [1], [2], [3], [4], [5], we have proposed a model for social networks in which client software runs on the user’s computer, encrypted blocks are stored on a “dumb” server and third-party applications are sandboxed to avoid the leakage of personal information [6]. In this scheme, the interface between applications and the core client software resembles a system call API in which a kernel offers applications the means to perform privileged operations. We have begun exploring this API to determine its functional requirements and desired security properties, but we welcome comments from and engagement with the security API community in order to provide the users of social networks with meaningful promises of personal privacy.
Data Mining, Systems Analysis, and Optimization in Biomedicine

This book is a collection of a sample of the latest research methods in data mining across diverse fields of biomedicine, neuroscience, engineering, and computer science. The problems and methods discussed in this book will be of great interest to new and established theoreticians and practitioners in these fields and provide them with new directions for research.
Experiences with MPI Application Development within int.eu.grid: Interactive European Grid Project

Nowadays, a growing number of researchers and application developers proflt by Grid infrastructures to run complex compute- and datamassive applications in a distributed way to get results in a reasonable time period. Applications come from many difierent scientiflc areas, such as medicine, physics or environment, etc. The European Gridproject int.eu. grid addresses the challenge of ofiering a production-level e-Infrastructure to interactive (MPI) applications. Within this project, the MPI libraries Open MPI and/or PACX-MPI are employed. Application support is also available through the MPI veriflcation tool MARMOT, which will be described in this paper.
Medium Access Control Sublayer

Network links can be divided into two categories: those using point-to-point connections and those using broadcast channels. We studied point-to-point links in Chap. 2; this chapter deals with broadcast links and their protocols. In any broadcast network, the key issue is how to determine who gets to use the channel when there is competition for it. To make this point, consider a conference call in which six people, on six different telephones, are all connected so that each one can hear and talk to all the others. It is very likely that when one of them stops speaking, two or more will start talking at once, leading to chaos. In a face-to-face meeting, chaos is avoided by external means. For example, at a meeting, people raise their hands to request permission to speak. When only a single channel is available, it is much harder to determine who should go next. Many protocols for solving the problem are known. They form the contents of this chapter. In the literature, broadcast channels are sometimes referred to as multiaccess channels or random access channels. The protocols used to determine who goes next on a multiaccess channel belong to a sublayer of the data link layer called the MAC (Medium Access Control) sublayer. The MAC sublayer is especially important in LANs, particularly wireless ones because wireless is naturally a broadcast channel. WANs, in contrast, use point-to-point links, except for satellite networks. Because multiaccess channels and LANs are so closely related, in this chapter we will discuss LANs in
Framework for Studying Spatially Ordered Treemaps

We propose a comprehensive research framework to empirically investigate complex visual inference tasks, support mechanisms (animated transition using morphing or vector overlay), and how spatial ability affects people’s learning and knowledge construction process from Spatially Ordered Treemaps (SOTs) as compared to conventional choropleth maps. This effort is inspired by the call of the new International Cartographic Association commission on Cognitive Visualization (CogVis), which proposes “developing a sound theoretical framework based upon cognition and perception discipline” (Fabrikant, 2011). The framework aims to explore SOTs in the context of both ‘in-vitro’ and ‘in-vivo’ settings. This study is grounded in cartography but also conforms to experimental design standards in per-ception and cognitive sciences.
User Requirements for Humanities Digital Libraries.

Jon RIMMER, Claire WARWICK, Ann BLANDFORD, Jeremy GOW & George BUCHANAN User Requirements for Humanities Digital Libraries Introduction This proposal describes an initial set of end user studies conducted as part of the UCIS (User Centred Interactive Search with digital libraries) project. Traditionally, digital library research has focused on improving system capabilities (such as the work reported by information retrieval literature), with little attention being paid to how information seeking behaviour develops over time and how this development can best be supported (e.g. Bates 1995). This project takes a three pronged approach in its research agenda: studying Humanities scholars’ use of resources in context of the broader information task (such as writing), studying the development of expertise over the three year undergraduate degree program with Information Management students, and developing and testing novel interface features that support novice users and the development of expertise in the utilization of digital resources. Context With the advent of the World Wide Web there has been a dramatic increase in the digitization of information and artefacts. There is much discussion about how societies can benefit from this electronic delivery of information as well as cautionary tales of problems associated with such a rapid take-up (Lesk 2004). The Scientific community has embraced the technologies facilitated by the World Wide Web, indeed creating and nurturing them. Humanities researchers have, in general, not been so quick to weave these resources into their research repertoire, with the exception of generic tools such as Google and online library catalogues and bibliographic tools. Reasons for this could include a lack of comfort and confidence with information technology, a reliance on colleagues and networking events as a source of information, reliance on their own personal collections, and a slower, more serendipitous way of searching and formulating their research ideas (see Barrett 2005 for an overview of these positions). Humanities researchers reportedly tend to find chaining, (or following up links from footnotes) to be a more useful activity than searching (Green 2000). Despite the hypertextual nature of the web, this activity is seldom well supported in online environments (Bates 2002). Over these past few months the largest organisations that provide WWW search engine services have been competing to create impressive digital libraries that will give the widest possible audience access to very large bundles of resources (e.g. Mathes 2005 & BBC 2005). Many of the resources being donated or used by these projects will be of significant value to Humanities scholars. Our research is immediately relevant to such projects, since it offers a solid foundation of knowledge about the working practices, experiences and attitudes of their intended audiences.
Model-based autosegmentation of the central brain of the honeybee, Apis mellifera, using active shape models

The Honeybee Brain Atlas serves as 3D database and communicative platform to accumulate structural data, i.e. reconstructed neurons, derived from confocal scans (Brandt et al., 2005) (www.neurobiologie.fu-berlin.de/beebrain/) (1). Transforming neurons into the atlas requires manual segmentation of neuropils within confocal images, a time-consuming task requiring expertise in identifying biological structures which can result in different outcomes from various segmenters.
Performance of the Barter, the Differential Evolution and the Simulated Annealing Methods of Global Optimization on Some New and Some Old Test Functions

In this paper we compare the performance of the Barter method, a newly introduced population-based (stochastic) heuristic to search the global optimum of a (continuous) multi-modal function, with that of two other well-established and very powerful methods, namely, the Simulated Annealing (SA) and the Differential Evolution (DE) methods of global optimization. In all, 87 benchmark functions have been optimized 89 times. The DE succeeds in 82 cases, the Barter succeeds in 63 cases, while the Simulated Annealing method succeeds for a modest number of 51 cases. The DE as well as Barter methods are unstable for stochastic functions (Yao-Liu#7 and Fletcher-Powell functions). In particular, Bukin-6, Perm-2 and Mishra-2 functions have been hard for all the three methods. Seen as such, the barter method is much inferior to the DE, but it performs better than SA. A comparison of the Barter method with the Repulsive Particle Swarm method has indicated elsewhere that they are more or less comparable. The convergence rate of the Barter method is slower than the DE as well as the SA. This is because of the difficulty of ‘double coincidence’ in bartering. Barter activity takes place successfully in less than one percent trials. It may be noted that the DE and the SA have a longer history behind them and they have been improved many times. In the present exercise, the DE version used here employs the latest (available) schemes of crossover, mutation and recombination. In comparison to this, the Barter method is a nascent one. We need a thorough investigation into the nature and performance of the Barter method. We have found that when the DE optimizes, the terminal population is homogenous while in case of the Barter method it is not so. This property of the Barter method has several implications with respect to the Agent-Based Computational Economics
An extension of weighted strategy sharing in cooperative Q-learning for specialized agents

Using other agents' experiences and knowledge, a learning agent may learn faster, make fewer mistakes, and create some rides for unseen situations. These benefits will be gained if the learning agents know the area of expertise and the expertness values of each other. In this paper, some Q-learning agents with different skills and expertness levels cooperate in learning. The agents use some criteria to judge others information and knowledge. Four expertness criterion, certainty and entropy measures are used to assign degrees of importance to others' Q-Tables. Effects of measuring these values based on their whole Q-Table, a portion of Q-Tables that reflects their proficiencies, and the states in Q-Tables on the learning quality are studied. Simple strategy sharing and two different weighted strategy-sharing methods are used to combine the acquired knowledge from different agents.
FAKTOR-FAKTOR YANG MEMPENGARUHI KEPUASAN PEMAKAI SOFTWARE AKUNTANSI (Studi Empiris pada Perusahaan Pemakai Software Akuntansi K-System di Pulau Jawa)

This study examines how the five Doll and Torkzadeh instruments (Content, Accuracy, Format, Ease of use, Timeliness) and the two Ives, Olson, and Baroudi instruments (Developer staffs and services, User knowledge and involvement) affect the user accounting sofware satisfaction. Data are collected from 50 accounting staffs and managers who use K-System software in their computer based information systems. Collecting data by direct survey at the area of attainable (Semarang regency), mail survey and contact person for area of unattainable (outside of Semarang regency). The results from analysis of the data suggest that content, accuracy, and user knowledge and involvement are positively associated with user accounting software satisfaction. The format, ease of use, timeliness, and vendor staff and services are not associated with user accounting software satisfaction. Penelitian ini menguji apakah lima instrumen yang dikembangkan oleh Doll dan Torkzadeh (isi, akurasi, format, kemudahan pemakaian, ketepatwaktuan) dan dua instrumen yang dikembangkan oleh Ives, Olson, dan Baroudi (sikap staf pengembang software dan jasa yang diberikannya, serta tingkat pengetahuan dan keterlibatan pemakai) mempengaruhi kepuasan pemakai software akuntansi. Data dikumpulkan dari 50 orang yang merupakan manajer dan staf akuntansi yang menggunakan software akuntansi K-System dalam sistem informasi berbasis komputernya. Pengumpulan data dengan survei langsung untuk wilayah kabupaten Semarang, dan mail survey serta contact person secara khusus untuk daerah di luar kabupaten Semarang. Hasil penelitian menunjukkan bahwa variabel isi, akurasi, serta tingkat pengetahuan dan keterlibatan pemakai berpengaruh terhadap kepuasan pemakai software akuntansi, sedangkan variabel format, kemudahan pemakaian, ketepatan waktu laporan, serta sikap staf vendor dan pelayanannya tidak berpengaruh terhadap kepuasan pemakai software akuntansi.
A Behavioural VHDL Synthesis System using Data Path Optimisation

MOODS (Multiple Objective Optimisation in Data and control path synthesis) is a synthesis system which provides the ability to automatically optimise a design from a behavioural to a structural VHDL description. This thesis details two sets of enhancements made to the original system to improve the overall quality of the final hardware implementations obtained, and expand the range of the accepted VHDL subset. Whereas the original MOODS considered each functional unit in the target module library to be a purely combinational logic block, the ? expanded modules? developed for this project provide a means of implementing sequential multi-cycle modules. These modules are defined as technology-independent templates, which are inline expanded into the internal design structure during synthesis. This enables inter-module optimisation to occur at the sub-module level, thus affording greater opportunities for unit sharing and module binding. The templates also facilitate the development of specialised interface modules. These enable the use of fixed timing I/O protocols for external interfacing, while maintaining maximum scheduling flexibility within the body of the behaviour. The second set of enhancements includes an improved implementation of behavioural VHDL as input to the system. This expands the previously limited subset to include such elements as signals, wait statements, concurrent processes, and functions and procedures. These are implemented according to the IEEE standard thereby preserving the computational effects of the VHDL simulation model. The final section of work involves the development and construction of an FPGA-based real-time audio-band spectrum analyser, synthesised within the MOODS environment. This design process provides valuable insights into the strengths and weaknesses of both MOODS and behavioural synthesis in general, serving as a firm foundation to guide future development of the system.
Stochastic segment modelling using the estimate-maximize algorithm (speech recognition)

A probabilistic model called the stochastic segment model is introduced that describes the statistical dependence of all the frames of a speech segment. The model uses a time-warping transformation to map the sequence of observed frames to the appropriate frames of the segment model. The joint density of the observed frames is then given by the joint density of the selected model frames. The automatic training and recognition algorithms are discussed and a few preliminary recognition results are presented. <<ETX>>
Beyond Threaded Discourse

The educational potential of asynchronous, computer-mediated conferencing is well documented. Opportunities for increased group interaction, more equitable communication patterns, higher degrees of reflection, and time-and-place-independent discussions are some of the benefits cited by researchers. This article focuses on one of the apparent limitations of the medium: the lack of support for convergent processes. Threaded online environments support electronic conversations that expand and branch, but provide few facilities for drawing together discourse in meaningful ways. The implications of this restriction are explored in two studies. The first study analyzes the degree to which students and instructors write convergent notes (e.g., notes that synthesize or summarize ideas) in three graduate-level computer conferencing courses. The second study explores student perceptions relating to their own synthesizing and summarizing practices. The results suggest that online participants rarely engage in convergent processes in spite of widespread agreement that such efforts confer educational benefits. Possible explanations for this phenomenon are discussed.
CAD-CAE methods to support restoration and museum exhibition of bronze statues: the “Principe Ellenistico”

Ancient bronze statues mainly require material integrity assessment and restoration. Restoration may include also the update of the museum exhibition, defining new structural frames and fragment re-composition to preserve the statue and improve the interpretation of the original aspect. This paper proves how engineering methods (such as Finite Element Analysis, Computer Aided Design modelling, Reverse Engineering) may assist cultural heritage experts and restorers in these tasks. It presents the activities made together with the Museo Nazionale Romano and the Istituto Superiore per la Conservazione e il Restauro, on the so-called “Principe Ellenistico” (Hellenistic Prince). This bronze was found in pieces (body, left arm and right leg), at the end of 19th century during an excavation made in Rome. No visual or reference sources can say its origin and its final posture was defined by restorers at the end of the 19th century according to their hypothesis and studies. In the 20th century, a further restoration was made on the critical areas of the surface, together with some structural improvement of the inner frame. Nowadays, after a review of its position inside the Museum, new experimental and numerical analyses have been carried out to better understand surface weakness and correct left arm positioning.