Miracle-dz/UniFAR-FTUs huggingface dataset:
- 1-IP NETWORK MONITORING AND AUTOMATIC ANOMALY DETECTION

This paper presents a new tool designed to assist in monitoring and network management. First, an algorithm is developed in order to allow automatic level-2 topology discovery. This feature is based on information collected by SNMP, provided by reference MIBs with the purpose of being supported by the vast majority of the equipments. The second part of this project describes a method of unsupervised learning which allows the detection of abnormal situations in the network. These irregularities are identified by a traffic model composed by a Gaussian mixture, responsible for representing the normal operation of the system. Index Terms – Anomaly Detection, Information Security, Network Management, Network Monitoring, SNMP, Topology Discovery.
Overview of the TREC-2001 Web track

TREC-2001 saw the falling into abeyance of the Large Web Task but a strengthening and broadening of activities based on the 1.69 million page WTlOg corpus. There were two tasks. The topic relevance task was like traditional TREC ad hoc but used queries taken from real web search logs from which description and narrative fields of a topic description were inferred by the topic developers. There were 50 topics. In the homepage finding task queries corresponded to the name of an entity whose home page (site entry page) was included in WTlOg. The challenge in this task was to return all of the homepages at the very top of the ranking. Cursory analysis suggests that once again, exploitation of link information did not help on the topic relevance task. By contrast, in the homepage finding task, the best performing run which did not make use of either link information or properties of the document's URL achieved only half of the mean reciprocal rank of the best run.
Ziggurat Revisited

Random numbers following a Standard Normal distribution are of great importance when using simulations as a means for investigation. The Ziggurat method (Marsaglia and Tsang, 2000; Leong et al. , 2005) is one of the fastest methods to generate normally distributed random numbers while also providing excellent statistical properties. This note provides an updated implementations of the Ziggurat generator suitable for 32-and 64-bit operating system. It compares the original implementations to several popular Open Source implementations. A new implementation embeds the generator into an appropriate C++ class structure. The performance of the different generator is investigated both via extended timing and through a series of statistical tests, including a suggested new test for testing Normal deviates directly. Integration into other systems such as R is discussed as well.
Dietary habits among tribal youth in the Gumla district of Jharkhand , India

A healthy dietary habit is indispensable for better nutritional status for the “youth span” (15-24 years of age group) of life due to innumerable physical changes. Physical changes along with adoption of poor dietary habits can make youth the nutritionally vulnerable group. And they become not only nutritionally vulnerable but also hard to reach population when we consider the tribal youth. Traditional foods are mainly regarded as the primary source of the regular diet of the tribal population irrespective of age. However, very less information is available regarding the dietary habit and nutritional status of the tribal youth. With an objective to assess the dietary habits in terms of dietary diversity and nutritional status of tribal youth, this cross‐ sectional study was conducted in Gumla district of Jharkhand, India. A total of 220 youths aged 15-24 years were selected to participate in the study. Data were collected on socio-demographic characteristics, Dietary diversity, the primary source of consumed food and anthropometry. Statistical analysis has been performed using SPSS software (version 22). Starchy staples namely cereals consumption was universal and 97.7% youth consumed white tubers. In case of micronutrient-rich vegetable groups, only 15.5%, 67.3 % and 90.5% of youth consumed vitamin A rich, green leafy and other vegetables respectively. Although 91.8% of the study sample were non-vegetarian, considering the bodybuilding foods only 42.7% of youth consumed flesh foods and 18.6% consumed milk and milk products. This type of dietary consumption resulted in 20.5 % of the studied population as underweight. It is only 79.5 % youth of the study sample were found to have normal body mass index (≥18.5kg/m2). In general, dietary diversity and nutritional status of the tribal youth in the present study is not at the satisfactory level. The primary source of their consumed food is local foods. Tribal people preserve the knowledge of traditional food resources that exist within their area of residence and they mostly procure foods by harvesting or collecting through gathering, hunting procedure based on their traditional knowledge.
Poverty alleviation and the effectiveness of the social assistance scheme in Korea

This paper analyses the relationship between social assistance and poverty in South Korea. Social assistance in Korea which had had a Poor Law tradition for about forty years, was finally reformed and a new social assistance scheme designed to protect fundamental human rights, was established in 1999. Are the means-tested social assistance benefits effective in protecting the poor from hardship? How effectively do the means-tested benefits reduce poverty? To assess the effectiveness of the means-tested social assistance benefits in Korea in terms of poverty reduction, this paper uses household data from the National Basic Livelihood Security Programme Review Board (NRB). Moreover, to obtain a comparative perspective, a British data set the Family Resources Survey (FRS) is used. The incidence and the intensity of poverty for a range of household types are analysed before and after social assistance benefits for both countries. The results of the analysis show the Korean social assistance scheme does not significantly alleviate poverty, although recipients’ income positions are improved after social assistance transfers. It is also shown that there is considerable variation between different household types regarding the degree to which the social assistance benefits protect people from poverty.
N ov 2 01 2 Cramér-Rao bounds for synchronization of rotations

Synchronization of rotations is the problem of estimating a set of rotations Ri ∈ SO(n), i = 1 . N based on noisy measurements of relative rotations RiR ⊤ j . This fundamental problem has found many recent applications, most importantly in structural biology. We provide a framework to study synchronization as estimation on Riemannian manifolds for arbitrary n under a large family of noise models. The noise models we address essentially encompass zero-mean isotropic noise, and we develop tools for Gaussian-like as well as heavy-tail types of noise in particular. As a main contribution, we establish formulas for the Fisher information matrix and associated Cramér-Rao bounds of synchronization. We find that these bounds are structured by the pseudoinverse of the measurement graph Laplacian, where edge weights are proportional to measurement quality. We leverage this to provide interpretation and visualization tools for these bounds in both the anchored and anchor-free scenarios. Similar bounds previously established were limited to rotations in the plane and Gaussian-like noise.
Prevalence of generalized joint hypermobility and its association with sports injuries at recreational cricket players

Introduction. Cricket is a dynamic sport that involves many abstract skills and movements. At present, the optimum level of flexibility required to prevent injury when participating in sporting activity is not clear and may vary. This study was therefore designed to evaluate the prevalence of generalized joint hypermobility and its association with sports injuries in recreational cricket players. Material and Method. One hundred and two male recreational cricket players participated in this study. The participants were assessed for joint hypermobility using the validated Beighton score (0-9). Player profile and details of sporting injuries while playing cricket were gathered by means of a selfadministered questionnaire. Data was analysed using and inferential statistics of Pearson ́s correlation coefficient was used to find the association between the variable and summarised with mean, standard deviation. Results. The result showed that the 12-month prevalence of injuries was 69 injuries among cricket players. The prevalence of generalized joint hypermobility was 50%. There was no significant association (p=0.061) between generalized joint hypermobility and upper limb injuries while there was a significant association (0.011) between generalized joint hypermobility and lower limb injuries among cricketers. Hand and finger injuries were the most common injury sustained by the cricket players. Conclusion. In this study generalized joint hypermobility had no association with upper limb injuries in recreational cricket player but had a significant association with lower limb injuries in recreational cricket players.
BEST PRACTICE GUIDELINES FOR EVALUATION

These guidelines identify key issues and practices that OECD Member countries should consider when seeking to improve the use of evaluations. They focus on management of evaluation activities in government and management of individual evaluations rather than on methodological questions. It is not their role to determine when evaluation is the most appropriate input to the policy making and performance management process. That decision will best be taken by the Member countries themselves.
Domestic and Foreign R & D Investment : Evidence from Japanese Multinationals *

A considerable share of R&D investment is due to multinational firms that simultaneously operate R&D bases at home and abroad. The existing empirical literature on R&D investment has however ignored the possibility that domestic and foreign R&D investments are simultaneously decided. In this paper, we draw on the technological opportunity, appropriability, and demand framework suggested by Cohen and Klepper (1996) to develop a simple model of foreign and domestic R&D investment. We test the model’s predictions concerning the ratio of foreign to domestic R&D investment on a sample of 146 Japanese multinational firms’ R&D investments in Japan and the United States in 1996. The empirical results confirm that the foreign R&D ratio depends on relative technological opportunities, relative demand conditions, and a proxy for firm-level R&D productivity. When differentiating between research and development activities, foreign research is driven by technological opportunity and foreign development by the demand factor, as expected. The results are consistent with mildly decreasing economies of scale in R&D and a relatively high elasticity of substitution between foreign and domestic R&D. Corresponding author: René Belderbos Katholieke Universiteit Leuven Faculty of Economics and Applied Economics Naamsestraat 69, B-3000 Leuven, Belgium Phone + 32 16 326912; Fax:+ 32 16 326732 Email: rene.belderbos@econ.kuleuven. be * The authors would like to thank Akira Goto, Tadahisa Koga, John Walsh, and participants at seminars at the Universiteit Maastricht, ICSEAD, and Keio University for helpful comments, Hyeog Ug Kwon for research assistance, and the Research Institute for Economy, Trade and Industry (RIETI) for allowing access to the data. Rene Belderbos gratefully acknowledges financial support from the International Centre for the Study of East Asian Development (ICSEAD) and the Japan Society for the Promotion of Science (JSPS).
Detailed investigation of transmission and emission data smoothing protocols and their effects on emission images

Measured attenuation correction in PET, is routinely performed using transmission scans. Acquisition time and noise considerations necessitate low pass filtering of the transmission data, before generating the attenuation correction matrix. This smoothing operation reduces noise propagation from transmission into emission data, but also introduces image artifacts which are mostly pronounced around areas of strongly varying attenuation coefficients. The source of these artifacts, which lies in the mismatch of the spatial resolutions of emission and transmission data, was investigated in this study. The effects of different transmission and emission sinogram smoothing protocols on the emission images were also investigated. A method is proposed that addresses the problem, in coordination with the filtering step during reconstruction. Instead of the standard low pass filtering of the emission data during reconstruction, emission and transmission sinograms can be filtered to the desired reconstructed image resolution prior to reconstruction. This operation reduces or eliminates resolution mismatch and consequent image artifacts, which can be significant, especially in cardiac studies. The proposed method improves the accuracy of the activity distribution in the emission images, with minimal computational and SNR cost. <<ETX>>
Voltage oscillatory instability caused by induction motor loads

Isolated power systems which fit the structure of a single equivalent generator supplying an equivalent composite load can experience a voltage oscillatory instability entirely traceable to effects of induction motor loads interacting with automatic voltage regulators. This scenario is one where an AVR properly tuned for open circuit conditions is not necessarily well tuned for the on load condition. The phenomenon is explained and a simple solution through AVR compensation is suggested.
MATEMÁTICAS INVERSE FINITE-TYPE RELATIONS BETWEEN SEQUENCES OF POLYNOMIALS by

Marcellán, Francisco & Ridha Sfaxi: A characterization of weakly regular linear functionals. Rev. Acad. Colomb. Cienc. 32 (122): xxx–xxx, 2008. ISSN 0370-3908. Let φ be a monic polynomial, with deg φ = t ≥ 0. We say that there is a finite-type relation between two monic polynomial sequences {Bn}n≥0 and {Qn}n≥0 with respect to φ, if there exists (s, r) ∈ N, r ≥ s, such that φ(x)Qn(x) = n+t ∑ ν=n−s λn,νBν(x), n ≥ s, with λr,r−s = 0. (∗) The corresponding inverse finite-type relation of (∗) consists in a finite-type relation as follows: Ωs(x; n)Bn(x) = n+s ∑ ν=n−t θ∗ n,νQν(x), n ≥ t, with θ∗ r+t,r = 0, where deg Ωs(x; n) = s, n ≥ t. When the orthogonality of the two previous sequences is assumed, the inverse finite-type relation is always possible [11]. This work essentially studies the case when only the sequence {Bn}n≥0 is orthogonal. In fact, we find necessary and sufficient conditions leading to inverse finite-type relations. In particular, the structure relation characterizing semi-classical sequences is a special case of the general situation. Some examples will be analyzed. Departamento de Matemáticas, Universidad Carlos III de Madrid, Avenida de la Universidad 30, 28911 Leganés, Spain. e-mail: pacomarc@ing.uc3m. es Département des Méthodes Quantitatives, Institut Supérieur de Gestion de Gabès, Avenue Jilani Habib 6002, Gabès, Tunisie. e-mail: ridhasfaxi@yahoo.fr 2000 Mathematics Subject Classification: 42C05, 33C45. 2 REV. ACAD. COLOMB. CIENC. : VOLUMEN XXXII, NÚMERO 122, 2008
Tutors Use of Semantic Waves as a Teaching Strategy to Guide Student Learning : A Case Study

This study investigated teaching and learning strategies, used by peer tutors in a Bachelor of Oral Health (BOH) tutorial class, to enhance active and engaged learning. This study was conducted on tutorial classes that were linked to a BOH high impact module which many students found challenging. Peer tutors who are senior students in the Faculty of Dentistry led the tutorial classes. Tutorial classes refer to small group teaching which allow for one-on-one interaction and increased student engagement with a peer tutor. This study focused specifically on the tutors’ unconscious use of semantic waves as a teaching and learning technique to unpack difficult BOH concepts. Semantic waves refer to building knowledge through the construction of recurring up and down movements in the semantic gravity (context-dependent) and the semantic density (condensation of meaning) of knowledge. The construction of knowledge moves from abstract to the concrete and vice-versa. This qualitative study made use of semi structured one-on-one and focus group interviews to collect data from the two BOH tutors and students in the tutorial class. The aim of the study was to investigate effective pedagogical strategies used by the tutors that enhanced students’ understanding of abstract oral health concepts. The findings reveal that using semantic waves did assist students with their understanding of difficult concepts. The study also highlighted that the tutors unconscious use of creating ‘semantic waves’ to transform abstract knowledge into everyday particle examples followed a natural sequence of teaching and engaging with students. The tutors had the ability to use the semantic wave technique to build knowledge in oral health concepts but did not have the skills to move knowledge and meaning-making up the semantic wave to cumulative knowledge-building. It was evident that the tutors were unable to engage students in critical thinking and reconnecting with abstract concepts. The outcome from this study is valuable, as the findings have resulted in the restructuring of the institutional tutor-training workshop to include semantic-waves as a pedagogical strategy to improve student learning. This strategy will explicitly raise tutors’ awareness about the importance of knowledge structures and it effectiveness in situated learning.
Shielding and Penetration

and interactions. Common periodic trends include those in ionization energy, atomic radius, and electron affinity. One such trend is closely linked to atomic radii -ionic radii. Neutral atoms tend to increase in size down a group and decrease across a period. When a neutral atom gains or loses an electron, creating an anion or cation, the atom's radius increases or decreases, respectively. This module explains how this occurs and how this trend differs from that of atomic radii.
PERFORMANCE ANALYSIS OF OPTICAL PACKET-SWITCHED MESHES: METRICS AND MODELING

The surge of facilitating the ever-growing number of service classes in the contemporary Internet backbone has persuaded researches worldwide to search for suitable underlying network topologies with desirable properties. Even in the presence of speedy optical technologies, the arrangement of nodes in a network can be highly influential in boosting network performance. Among all the topologies investigated so far, k-ary n-cubes have been reported to be widely adopted in the literature. However in a hybrid network, where the network comprises of a mixture of different types of topologies, the type and size of k-ary n-cubes can greatly influence the performance factor of the network. The objective of this paper is twofold. Firstly, we introduce a set of new metrics that can be used to analyze the performance behavior of simple regular meshes with their wrap-around variants (2-D and 3-D torus) for the Optical Packet Switching (OPS) paradigm. We then propose a simple and yet efficient switch-level analytical model for service differentiation in OPS in the presence of wavelength converters (WCs). The proposed model is further extended to include the impact of Fiber Delay Lines (FDLs) as well. Simulations are conducted for both cases to corroborate the accuracy of the models presented.
A neuro-fuzzy controller for yo-yo system

The yo-yo system has been introduced as an interesting plant to prove the effectiveness of intelligent controllers. Having nonlinear as well as asymmetric characteristics, the plant requires a controller quite different from conventional PID controller. The paper presents a method of controlling the yo-yo plant. A fuzzy logic controller based on human expertise is referred first. Then, a neuro fuzzy controller which has adaptation features against the variation of plant parameters is introduced as well. Finally, experimental results are presented and comparison study between the controllers is also discussed.
Integrated Capacity Coordination-matching Process in Make-to-forecast Production Environments

Although Make-To-Forecast (MTF) production environment is one of production systems have been utilized in real industrial world, academicians have not paid considerable attention to this field of production planning. In this paper, a novel capacity coordination framework in MTF production environments is proposed. The proposed framework includes four steps. At the first step, production value is determined based on Analytic Hierarchy Process (AHP) method upon which estimated capacity is allocated to correction process in the second step. Next, product lot sizes are optimized in the third stage using a proposed mathematical programming model. The final step is related to order acceptance/rejection and matching process. In this regard, negotiability of receiving orders is considered in order to make proper acceptance/rejection decision. Also, an assignment model is developed for the matching process, which is tackled using the well-known Hungarian method. Finally, results of a real-world industrial case study are reported to show performance of the proposed framework.
In Vivo Observation of the Blood Flow in Human Capillaries under Finger Nailfold

A setup for seeing the capillaries just under the finger nailfold of a human being has been developed. The setup consists of a microscope and a CCD camera. We found that by using an interference filter to filter out the red color, we can obtain a good picture of the capillaries. Equally important for obtaining a good picture, we found that some appropriate matching oil must be applied on the skin surface. Before we calculate the velocity of the blood, we proposed a method to stabilize the raw pictures obtained from the CCD camera because the pictures vibrate seriously due to the involuntary motion of human beings. The feature of this method is that it can pinpoint the capillary in which the blood velocity is measured.
Behavior and Applications of Magnetostrictive Materials

Magnetostrictive materials deform under the action of magnetic fields, and their magnetization changes when they are deformed. This mechanism for bidirectional energy transduction between magnetic and elastic regimes has been effectively employed in actuator and sensor applications. Current and anticipated industry needs dictate that transducers employed in diverse processes operate over broader frequency bandwidths and be multifunctional. However, at the high operating regimes in which these performance criteria are met, magnetostrictive materials exhibit hysteresis and nonlinearities to a degree which other smart materials often do not. Basic and applied research on magnetostrictive materials therefore focuses on addressing these issues through the development of innovative modeling techniques and control strategies. Because the magnetostrictive effect is intrinsically stochastic, accurate models to be used in design and control applications must be constructed from constitutive laws describing material behavior in terms of its inherent physical properties. This paper presents an overview of Joule magnetostriction, magnetostrictive materials, and actuator configurations which employ advanced crystalline materials capable of producing strains in excess of 1600×10.