Miracle-dz/UniFAR-FTUs huggingface dataset:
Exploiting user's social network: A novel method to recommend most attractive and targeted service

The rapid development of the Internet and e-commerce has accumulated numerous data about products, services and customers, which contains meaningful information that recommender system can utilize to realize a more accurate recommendation. In daily life, it is nature for users to seek suggestion from a friend and the more professional and intimated the friend is, the more impact the suggestion has on the user's final decision. Inspired by this phenomenon, we develop a recommendation approach based on social trust network. In this paper, we take advantage of homogeneous effect in trust relations to calculate user similarities and build a personal weighted trust work. A trust propagation mechanism is proposed to attain trustworthy users and then we use a dynamic recommendation algorithm based on random walk model to achieve accurate recommendation. In the end, several comparing experiments are conducted to demonstrate the improvement of our recommendation method.
Fast-AIMD: A fairness based congestion control approach for TCP networks

The majority of real time applications require hasty data transmission over a TCP channel in the network. It is a necessity of fair distribution of resources to enhance the performance of the network. Additive increase and multiplicative decrease (AIMD) is one of the finest congestion control technique for TCP networks, achieves a responsibly good fairness and throughput, which reduces packet loss rate. This paper proposes an AIMD based congestion control technique to deal with the fairness and attain the better and fast bandwidth utilization. We allow our mechanism to increase the congestion window size exponentially by a multiplicative factor at slow start and drop off the congestion window with an additional increase for every packet loss. Our approach uses the concept of pre-determination of congestion window size for each multiplicative increase with respect to the available bandwidth of the channel. We called our approach as Fast-AIMD (FAIMD). The simulation results demonstrate that our mechanism can accomplish a faster growth in congestion window of each flow as compared to the existing mechanism for TCP networks.
Introduction of Sustained Release Opipramol Dihydrochloride Matrix Tablets as a New Approach in the Treatment of Depressive Disorders

Opipramol 2-HCl (OP) is used for therapy of general somatoform and anxiety disorders. Conventional tablets in the market contain 50 mg OP to be used once or up to three times a day in effective treatment of depression in mild. In case of serious depressive disorders, OP may be administired up to 300 mg a day. Decrease in frequency of high dose administration via sustained drug release would reduce incidence of symptoms of intoxication in long-term use of OP. With this aim, OP matrix tablets containing 100 mg were prepared by direct compression method to be used once a day to provide patient compliance and constant blood level, consequently to decrease side effects. Two concentrations of polymers (10% and 20%): hydroxypropylcellulose (HPC) and hydroxypropyl methylcellulose (HPMC), sodium alginate (NaAlg), xanthan gum (XG) and Carbopol®941 (C941) were used in preparation of matrix tablets. Drug release study were performed in distilled water, pH1.2 HCl buffer and pH7.4 phosphate buffer solutions according to the Method II in USP 29. Two commercial tablets containing 50 mg OP available in Turkish market were used for comparison. Kinetic models of release patterns from tablets were evaluated. Drug release was displayed slower to faster pattern in order of formulations containing C941, HPMC and HPC. Drug release was significantly faster in tablets of 10% polymers than those of 20%. NaAlg and XG were insufficient to sustain drug release. The most sustaining drug release effect at the lowest polymer concentration was obtained with C941. Drug release from matrix tablets containing 10% C941 was determined as 58.2%, 52.4 and 57.0% in related dissolution mediums above after 8 hours, respectively. However, HPMC and HPC sustained drug release at 20% concentration. As a result, Carbopol® 941, HPMC and HPC can be suggested as suitable to prepare matrix tablets of OP.
The Attitudes and Knowledge of Residential Treatment Center Staff Members Working with Adolescents Who Have Experienced Trauma

ABSTRACT Although many programs are working to reduce and eliminate the use of restraint and seclusion practices, these practices continue to be highly prevalent. A one-hour in-service training on Trauma-Informed Care and Sensory Integration principles and strategies for de-escalating behavior was presented to staff members working directly with adolescents with severe emotional and behavioral problems living in a Residential Treatment Center. Staff member attitudes regarding Trauma-Informed Care, the use of restraints, and sensory-based alternatives were measured before and after the in-service training to determine pre-existing staff attitudes and the potential influence of such a training on staff attitudes.
Extraction from Natural Scene using PCA

Many techniques and algorithm have been developed to solve the problem of text extracted from natural scenes. Text extraction is emerging and challenging era in the computer vision. Text which is embedded into the image contains semantic information which is used in many other applications such as information retrieval of complex images, robot navigation, useful for visually impaired persons, street signs, automatic read the sign board and use in so many other applications. Most of the research work in this area has been done only on printed text, a very few research is addressing the LED scene text. Scene text is difficult to extract due to blur image, variations in color, noise problem, complex background, discontinuity, poor lighting conditions, and variation in illumination. LED is Light Emitting Diode which is widely used in displaying the information in LED boards. Now days LED display that is natural scene is being widely used for displaying announcements, sign boards, banners for displaying information. To extract the text from the LED display is not an easy task, it is very complex due to its discontinuity. A matrix of segments is used to display the character of LED, which is combined together to generate an LED text. So, The aim of this paper to propose a technique to extract an LED text from natural scene image. In the preprocessing step, The RGB input image will be converted to a grayscale image, image is binarization and noise is removed. Then FFT and FFT shift is used to extract the text region because the text is generally found in higher frequency and it is the fastest method. The text or non-text region is classified. Finally, apply the template matching method is developed using PCA, which is used to recognize the extracted text and display in boundary boxes. The experimental results of the proposed method show the extraction rate is 73.25. Keywords— Connected Component method, FFT method, FFT shift, MSER, Morphological operations, PCA, Text extraction.
Theory of the half-filled Landau level.

A two-dimensional electron system in an external magnetic field, with Landau-level filling factor \ensuremath{\nu}=1/2, can be transformed to a mathematically equivalent system of fermions interacting with a Chern-Simons gauge field such that the average effective magnetic field acting on the fermions is zero. If one ignores fluctuations in the gauge field, this implies that for a system with no impurity scattering, there should be a well-defined Fermi surface for the fermions. When gauge fluctuations are taken into account, we find that there can be infrared divergent corrections to the quasiparticle propagator, which we interpret as a divergence in the effective mass ${\mathit{m}}^{\mathrm{*}}$, whose form depends on the nature of the assumed electron-electron interaction v(r). For long-range interactions that fall off slower than 1/r at large separation r, we find no infrared divergences; for short-range repulsive interactions, we find power-law divergences; while for Coulomb interactions, we find logarithmic corrections to ${\mathit{m}}^{\mathrm{*}}$. Nevertheless, we argue that many features of the Fermi surface are likely to exist in all these cases. In the presence of a weak impurity-scattering potential, we predict a finite resistivity ${\mathrm{\ensuremath{\rho}}}_{\mathit{x}\mathit{x}}$ at low temperatures, whose value we can estimate. We compute an anomaly in surface acoustic wave propagation that agrees qualitatively with recent experiments. We also make predictions for the size of the energy gap in the fractional quantized Hall state at \ensuremath{\nu}=p/(2p+1), where p is an integer. Finally, we discuss the implications of our picture for the electronic specific heat and various other physical properties at \ensuremath{\nu}=1/2, we discuss the generalization to other filling fractions with even denominators, and we discuss the overall phase diagram that results from combining our picture with previous theories that apply to the regime where impurity scattering is dominant.
Toward Optimal Labeling Strategy under Multiple Unreliable Labelers

One of the most resource intensive tasks in building a pattern recognition system is data collection, specifically the acquisition of sample labels from subject experts. The first part of this paper explores an EM algorithm to train classifiers using labelers of various reliability. Exploiting unreliable labelers opens up the possibility of assigning multiple labelers to judge the same sample. The second part of this paper examines an optimal strategy such that labelers are assigned to judge samples to maximize information given to the learning system. The optimal labeling strategy for the idealized case of two labelers with two samples is examined and illustrated.
An e-whiteboard application to support early design-stage sketching of UML diagrams

We describe a Unified Modelling Language (UML) diagramming tool that uses an e-whiteboard, pen-based sketching interface to support collaborative design. Our tool allows designers to sketch UML visual modelling language constructs, mixing different UML diagram components, free-hand annotations and hand-written text. A key novelty of our approach is the preservation of hand-drawn diagrams and support for manipulation of the diagrams using pen-based actions. UML sketches can be "formalized" to computer-recognised and drawn diagrams, and exported to a 3rd party CASE tool.
Customizable and Extensible Deployment for Mobile/Cloud Applications

Modern applications face new challenges in managing today's highly distributed and heterogeneous environment. For example, they must stitch together code that crosses smartphones, tablets, personal devices, and cloud services, connected by variable wide-area networks, such as WiFi and 4G. This paper describes Sapphire, a distributed programming platform that simplifies the programming of today's mobile/cloud applications. Sapphire's key design feature is its distributed runtime system, which supports a flexible and extensible deployment layer for solving complex distributed systems tasks, such as fault-tolerance, code-offloading, and caching. Rather than writing distributed systems code, programmers choose deployment managers that extend Sapphire's kernel to meet their applications' deployment requirements. In this way, each application runs on an underlying platform that is customized for its own distribution needs.
An agent-based framework for personalized advertisement on mobile devices

Online advertising is the main profit channel of the internet companies. But, mobile advertising has increasing importance because of the widespread of mobile devices. Effective mobile advertising is the key factor for maximizing revenue when considering advertisers and subscribers benefits. So, An effective ads system take into account that mobile broadband, user time, personal preferences and information. This paper presents a framework to facilitate a flexible and intelligent personal mobile advertisement on mobile devices. The developed framework consists of a combination of expert systems and multi-agent systems. The personal agent communicates with the server agent of the multi-agent system, in order to discover appropriate advertisements to advise the user.
The Obalon swallowable intragastric balloon in pediatric and adolescent morbid obesity

Abstract Background and study aims Incidence of morbid obesity has grown dramatically in the last half century and this phenomenon affects with particular severity the pediatric population. Dietary restrictions and careful programs to improve lifestyle are often ineffective to manage this particular group of patients, due to poor compliance typical of the adolescence. The aim of this study was to evaluate the effectiveness of a new intragastric balloon for treatment of morbidly obese children. Patients and methods A new swallowable intragastric balloon (Obalon) has been used for the first time in 17 obese children in order to assess its safety and effectiveness in terms of reduction in excess weight. In 9 of 17 children a second balloon was placed 30 to 40 days after the first insertion. All devices were endoscopically removed after a mean time of 18 weeks. Results In the group of 16 patients who completed the study (1 patient still under treatment) mean weight decreased from 95.8 ± 18.4 Kg to 83.6 ± 27.1 (P < 0.05). Mean body mass index (BMI) decreased from 35.27± 5.89 (range 30.4 – 48) to 32.25 ± 7.1 (range 23.5 – 45.7) (P > 0.05); mean excess weight, calculated according to Cole’s curves for pediatric populations, decreased from 36.2 ± 15.9 to 29.4 ± 18.3 Kg (P = 0.14), with an %EWL of 20.1 ± 9.8 (range 2.3 – 35.1). Waist circumference decreased from 109 ± 12.3 cm to 99 ± 10.5 cm (P < 0.05). Conclusions Obalon can be administered easily without complications, inducing an appreciable weight loss with a statistically significant reduction in BMI and an improvement in associated comorbidities.
Interbank Deposits and Market Discipline: Evidence from Central and Eastern Europe

There is a considerable debate on the role played by market discipline in the banking industry. Using data for 207 banks across 10 Central and Eastern European countries, this paper empirically analyzes the disciplining role of interbank deposits. We find that market discipline has been effective in Central and Eastern Europe since the implementation of explicit deposit insurance. However, several factors affect the strength of this discipline. State-owned banks are not disciplined probably because they benefit from implicit insurance. Institutional and legal factors, and resolution strategies adopted by countries during banking crises also impact bank risk and the effectiveness of market discipline. Our results indicate that stronger regulatory discipline reduces risk but also weakens market discipline.
Quasigeostrophic turbulence with explicit surface dynamics: Application to the atmospheric energy spectrum

Abstract The horizontal wavenumber spectra of wind and temperature near the tropopause have a steep −3 slope at synoptic scales and a shallower −5/3 slope at mesoscales, with a transition between the two regimes at a wavelength of about 450 km. Here it is demonstrated that a quasigeostrophic model driven by baroclinic instability exhibits such a transition near its upper boundary (analogous to the tropopause) when surface temperature advection at that boundary is properly resolved and forced. To accurately represent surface advection at the upper and lower boundaries, the vertical structure of the model streamfunction is decomposed into four parts, representing the interior flow with the first two neutral modes, and each surface with its Green’s function solution, resulting in a system with four prognostic equations. Mean temperature gradients are applied at each surface, and a mean potential vorticity gradient consisting both of β and vertical shear is applied in the interior. The system exhibits three f.
Flexible Rigidities: Industrial Policy and Structural Adjustment in the Japanese Economy, 1970-80

ILO pub-WEP pub. Working paper on structural change and industrial policy trends from 1970-1980 in Japan - discusses adjustment to petroleum price increases and inflation, competition, changing occupational structure and trade structure, role of workers, trade unions and entrepreneurs (incl. Production diversification, monopolys, subcontracting and foreign investment); provides evaluation of labour policy, fiscal policy and monetary policy; includes case studies of the textile industry and electronics industry. Bibliography.
Architectural description of embedded systems: a systematic review

Embedded systems have gained more and more attention, as variety and complexity of these systems have increased. In particular, many of these systems are also critical regarding dependability, safety, security, among others. In parallel, since software architectures and reference architectures form the backbone of any successful system, including embedded systems, an important and even essential activity is to properly describe such architectures. However, to our best knowledge, there is no detailed panorama on how software architectures and reference architectures for embedded systems could be represented. Thus, the main contribution of this paper is to present and discuss results of a systematic review, aiming at providing this wide and, at the same time, deep panorama. We found out that different approaches have been proposed and used, lacking of consensus on how to better represent architectures of embedded systems. We also identified a range of quality requirements and constraints that have been considered in the architectural description of these systems. Furthermore, these results can be considered as valuable means to identify research lines that need to be further investigated.
An investigation into teredo and 6to4 transition mechanisms: Traffic analysis

The exhaustion of IPv4 address space increases pressure on network operators and content providers to continue the transition to IPv6. The IPv6 transition mechanisms such as Teredo and 6to4 allow IPv4 hosts to connect to IPv6 hosts. On the other hand, they increase network complexity and render ineffective many methods to observe IP traffic. In this paper, we modified our flow-based measurement system to involve transition mechanisms information to provide full IPv6 visibility. Our traffic analysis focuses on IPv6 tunneled traffic and uses data collected over one week in the Czech national research and education network. The results expose various traffic characteristics of native and tunneled IPv6 traffic, among others the TTL and HOP limit distribution, geolocation aspect of the traffic, and list of Teredo servers used in the network. Furthermore, we show how the traffic of IPv6 transition mechanisms has evolved since 2010.
β1 Integrins Are Critically Involved in Neutrophil Locomotion in Extravascular Tissue In Vivo

Recruitment of leukocytes from blood to tissue in inflammation requires the function of specific cell surface adhesion molecules. The objective of this study was to identify adhesion molecules that are involved in polymorphonuclear leukocyte (PMN) locomotion in extravascular tissue in vivo. Extravasation and interstitial tissue migration of PMNs was induced in the rat mesentery by chemotactic stimulation with platelet-activating factor (PAF; 10−7 M). Intravital time-lapse videomicroscopy was used to analyze migration velocity of the activated PMNs, and the modulatory influence on locomotion of locally administered antibodies or peptides recognizing various integrin molecules was examined. Immunofluorescence flow cytometry revealed increased expression of α4, β1, and β2 integrins on extravasated PMNs compared with blood PMNs. Median migration velocity in response to PAF stimulation was 15.5 ± 4.5 μm/min (mean ± SD). Marked reduction (67 ± 7%) in motility was observed after treatment with mAb blocking β1 integrin function (VLA integrins), whereas there was little, although significant, reduction (22 ± 13%) with β2 integrin mAb. Antibodies or integrin-binding peptides recognizing α4β1, α5β1, or αvβ3 were ineffective in modulating migration velocity. Our data demonstrate that cell surface expression of β1 integrins, although limited on blood PMNs, is induced in extravasated PMNs, and that members of the β1 integrin family other than α4β1 and α5β1 are critically involved in the chemokinetic movement of PMNs in rat extravascular tissue in vivo.
Self-supervised writer adaptation using perceptive concepts : application to on-line text recognition

We recently designed a hand-printed text recognizer. The system is based on three set of experts respectively used to segment, classify and validate the text (with a French lexicon : 200K words). We present in this communication writer adaptation methods. The first is supervised by the user. The others are self-supervised strategies which compare classification hypothesis with lexical hypothesis and modify consequently classifier parameters. The last method increases the system accuracy and the classification speed. Experiments are presented on a large database of 90 texts (5400 words) written by 54 different writers and good recognition rates (82%) have been obtained.
Efficient resource allocation for QoS channels in MF-TDMA satellite systems

In this paper, we address the problem of providing guaranteed quality of service (QoS) channels over multi-frequency time division multiple access (MF-TDMA) systems that employ DPSK with multiple modulation modes. The two QoS measures that we consider are the bit error rate (BER) and the data rate. We treat the data rate as a deterministic QoS measure, and the BER as a statistical QoS measure. Our approach is divided into two phases: resource calculation and resource allocation. In the resource calculation phase, we calculate the number of timeslots required to provide the desired level of QoS. We treat this as a disturbance prediction problem and present a Markov model based scheme for solving it. We compare the performance of this scheme with that of the scheme implemented in the extremely high frequency satellite communication (EHF-SATCOM) systems, which are jointly used by the four military services. The resource allocation phase addresses the problem of allocating actual timeslots in the MF-TDMA channel structure (MTCS). The MTCS allows flexibility in capacity allocation, but suffers from inefficiencies caused by fragmentation. Here we propose a novel packing scheme called the Reserve Channel with Priority (RCP) fit, and show that it outperforms the first-fit and the best-fit algorithms in the cases considered.
A procedure mechanism for backtrack programming

One of the difficulties in using nondeterministic algorithms for the solution of combinatorial problems is that most programming languages do not include features capable of easily representing backtracking processes. This paper describes a procedure mechanism that uses coroutines as a means for the description and realization of nondeterministic algorithms. A solution to the eight queens problem is given to illustrate the application of the procedure mechanism to backtracking problems.