Miracle-dz/UniFAR-FTUs huggingface dataset:
Data profiling

One of the crucial requirements before consuming datasets for any application is to understand the dataset at hand and its metadata. The process of metadata discovery is known as data profiling. Profiling activities range from ad-hoc approaches, such as eye-balling random subsets of the data or formulating aggregation queries, to systematic inference of structural information and statistics of a dataset using dedicated profiling tools. In this tutorial, we highlight the importance of data profiling as part of any data-related use-case, and discuss the area of data profiling by classifying data profiling tasks and reviewing the state-of-the-art data profiling systems and techniques. In particular, we discuss hard problems in data profiling, such as algorithms for dependency discovery and profiling algorithms for dynamic data and streams. We conclude with directions for future research in the area of data profiling. This tutorial is based on our survey on profiling relational data [1].
Rotation speed control method for OFDM receiver using rotating circular array antenna

In high-speed mobile OFDM communication systems, receiving characteristics are degraded badly by channel time variation. One solution is to rotate a circular array antenna so as to decrease the speed of the receiving antenna relative to the ground[1]. In the conventional approach[2], antenna radius was controlled to match vehicle speed, but realizing a radius control system is difficult. Our goal is to propose an easily implementable system based on rotating antenna. In this paper, we propose a method which controls the rotation speed of an antenna to avoid the effect of velocity change. Simulation results show the effectiveness of the proposed method.
Synaptic hyperexcitability of deep layer neocortical cells in a genetic model of absence seizures

We used sharp‐electrode, intracellular recordings in an in vitro brain slice preparation to study the excitability of neocortical neurons located in the deep layers (>900 µm from the pia) of epileptic (180–210‐days old) Wistar Albino Glaxo/Rijswijk (WAG/Rij) and age‐matched, non‐epileptic control (NEC) rats. Wistar Albino Glaxo/Rijswijk rats represent a genetic model of absence seizures associated with generalized spike and wave (SW) discharges in vivo. When filled with neurobiotin, these neurons had a typical pyramidal shape with extensive apical and basal dendritic trees; moreover, WAG/Rij and NEC cells had similar fundamental electrophysiological and repetitive firing properties. Sequences of excitatory postsynaptic potentials (EPSPs) and hyperpolarizing inhibitory postsynaptic potentials (IPSPs) were induced in both the strains by electrical stimuli delivered to the underlying white matter or within the neocortex; however, in 24 of 55 regularly firing WAG/Rij cells but only in 2 of 25 NEC neurons, we identified a late EPSP that (1) led to action potential discharge and (2) was abolished by the N‐methyl‐D‐aspartate (NMDA) receptor antagonist 3,3‐(2‐carboxypiperazine‐4‐yl)‐propyl‐1‐phosphonate (20 µM; n = 8/8 WAG/Rij cells). Finally, we found that the fast and slow components of the stimulus‐induced IPSPs recorded during the application of glutamatergic receptor antagonists had similar reversal potentials in the two strains, while the peak conductance of the fast IPSP was significantly reduced in WAG/Rij cells. These findings document an increase in synaptic excitability that is mediated by NMDA receptors, in epileptic WAG/Rij rat neurons located in neocortical deep layers. We propose that this mechanism may be instrumental for initiating and maintaining generalized SW discharges in vivo.
Architectural Design of Home Energy Saving System Based on Realtime Energy-Awareness

Recently, a global market related to energy efficiency and energy saving technologies is being extended rapidly with the growth of a matter of primary concern about extreme climate change. Especially, in the home network environments where only its functional aspects have been focused on without considering energy consumption, it is urgent to develop new energy-efficient technologies specialized in the home network environments. In this paper, architecture of home energy saving system (HESS) based on energy-awareness and its basic functional requirements are designed and proposed for real-time home energy monitoring service, reducing or cutting off standby power caused by home appliances, and intelligent home energy management service.
Internet, sexe et dépendance: clinique et traitement de la dépendance au sexe sur Internet

Bien qu’on attribue aujourd’hui déjà aux termes de «dépendance au jeu» ou «achats compulsifs» la notion de trouble du comportement, les systèmes de classification psychiatriques actuels (CIM-10, DSM IV) n’associent les abus ou les dépendances qu’à des substances (alcool, drogues, médicaments, etc.). L’arrivée de l’Internet et avec lui son usage compulsif implique de plus en plus un élargissement de la notion de dépendance, y compris en direction des troubles du comportement. On parle ainsi aujourd’hui de «dépendances non liées à des substances» ou de comportements compulsifs. La prochaine version du DSM (DSM V) tiendra compte de cette évolution [1]. Dans la dépendance à la pornographie sur Internet (fig. 1 x), il s’agit d’un usage compulsif des contenus pornographiques de l’Internet, notamment des photos, des films, des chats (avec ou sans webcams) et d’autres outils interactifs (cybersexe). Il ne manque pas d’offres dans ce domaine: le nombre de sites pornographiques représente ainsi 12% de l’ensemble des sites Internet. 25% des demandes soumises aux moteurs de recherche et 35% des téléchargements concernent des contenus pornographiques [2], qui peuvent aller de la pornographie dite douce au «hardcore» proprement dit (représentation explicite d’activités sexuelles, les organes génitaux étant ouvertement exposés durant l’acte sexuel, à la représentation de préférences ou de techniques préférentielles, telles que rapports oraux ou anaux, sexe en groupes, sexe avec obèses, personnes âgées, etc.), voire à des pratiques interdites par la loi comme les violences ou la pornographie enfantine. Dans ces cas, les offres peuvent être de nature sadique avec des tortures, voire des meurtres («snuff videos»). Le terme juridique «pornographie dure» ne recouvre pas ce qu’on entend dans le langage commun par «hardcore», mais désigne les actes avec des enfants, des animaux, les représentations sexuelles à connotation violente ou associées à l’émission d’excréments (urine, selles). La possession et en particulier la diffusion de représentations et de supports contenant de la pornographie dure sont punissables au sens de la loi. La consommation de contenus pornographiques sur Internet est très répandue dans le monde entier. Il n’existe toutefois que trop peu de données sur la prévalence pour établir des estimations fiables, mais une enquête américaine en ligne, réalisée en 2008 et qui a interrogé plus de 15000 personnes, a montré que 75% des hommes et 41% des femmes sont des consommateurs de pornographie sur Internet [3]. Le mode de consommation diffère cependant entre les hommes et les femmes: les consommateurs de sexe masculin se concentrent principalement sur du matériel photo-vidéo, tandis que les femmes préfèrent le chat érotique et acceptent plus volontiers les rencontres concrètes [3].
Engagement e burnout em professores portugueses

Recently, there have been profound changes in public schools regarding changes on teachers’ role, who are increasingly confronted with new tasks arising from the bureaucratization of the profession and also the reassign of educational roles of family to the school. These changes can be predictors of a malaise which affect the physical and psychological well-being and the labor commitment of teachers, getting more exposed to suffer from chronic occupational stress: burnout. We wanted to know if there is a relationship between the dimensions of burnout and engagement and International Journal of Developmental and Educational Psychology INFAD Revista de Psicología, No1-Vol.4, 2012. ISSN: 0214-9877. pp: 63-72 63 AFRONTAMIENTO PSICOLÓGICO EN EL SIGLO XXI ENGAGEMENT E BURNOUT EM PROFESSORES PORTUGUESES Maria Ilidia Silva Profesora y Coordinadora. Ministerio de Educación y Ciencia. Portugal. María Consuelo Morán Astorga Profesora Titular de Universidad. Universidad de León. España. Fecha de recepción: 24 de enero de 2012 Fecha de admisión: 15 de marzo de 2012 prove that there is some influence of engagement on burnout in Portuguese teachers. The data was collected through the MBI (Maslach Burnout Inventory) to evaluate the burnout and Work Engagement Scale Utrecht to assess the engagement with a sample of 94 teachers from pre-school education until secondary school. The results show negative and significant relationships between burnout and engagement. We also found the positive correlations between personal fulfillment, vigor, dedication and absorption, confirming the hypothesis that the engagement presents a potential value in predicting the well-being in teachers.
ON THE mth ROOTS OF A COMPLEX MATRIX

If an n × n complex matrix A is nonsingular, then for everyinteger m> 1 ,A has an mth root B, i.e., B m = A. In this paper, we present a new simple proof for the Jordan canonical form of the root B. Moreover, a necessaryand sufficient condition for the existence of mth roots of a singular complex matrix A is obtained. This condition is in terms of the dimensions of the null spaces of the powers A k (k =0 , 1, 2 ,. ).
CMStalker: A Combinatorial Tool for Composite Motif Discovery

Controlling the differential expression of many thousands different genes at any given time is a fundamental task of metazoan organisms and this complex orchestration is controlled by the so-called regulatory-genome encoding complex regulatory networks: several Transcription Factors bind to precise DNA regions, so to perform in a cooperative manner a specific regulation task for nearby genes. The in silico prediction of these binding sites is still an open problem, notwithstanding continuous progress and activity in the last two decades. In this paper, we describe a new efficient combinatorial approach to the problem of detecting sets of cooperating binding sites in promoter sequences, given in input a database of Transcription Factor Binding Sites encoded as Position Weight Matrices. We present CMStalker, a software tool for composite motif discovery which embodies a new approach that combines a constraint satisfaction formulation with a parameter relaxation technique to explore efficiently the space of possible solutions. Extensive experiments with 12 data sets and 11 state-of-the-art tools are reported, showing an average value of the correlation coefficient of 0.54 (against a value 0.41 of the closest competitor). This improvements in output quality due to CMStalker is statistically significant.
Genetic identity, biological phenotype, and evolutionary pathways of transmitted/founder viruses in acute and early HIV-1 infection

Identification of full-length transmitted HIV-1 genomes could be instrumental in HIV-1 pathogenesis, microbicide, and vaccine research by enabling the direct analysis of those viruses actually responsible for productive clinical infection. We show in 12 acutely infected subjects (9 clade B and 3 clade C) that complete HIV-1 genomes of transmitted/founder viruses can be inferred by single genome amplification and sequencing of plasma virion RNA. This allowed for the molecular cloning and biological analysis of transmitted/founder viruses and a comprehensive genome-wide assessment of the genetic imprint left on the evolving virus quasispecies by a composite of host selection pressures. Transmitted viruses encoded intact canonical genes (gag-pol-vif-vpr-tat-rev-vpu-env-nef) and replicated efficiently in primary human CD4+ T lymphocytes but much less so in monocyte-derived macrophages. Transmitted viruses were CD4 and CCR5 tropic and demonstrated concealment of coreceptor binding surfaces of the envelope bridging sheet and variable loop 3. 2 mo after infection, transmitted/founder viruses in three subjects were nearly completely replaced by viruses differing at two to five highly selected genomic loci; by 12–20 mo, viruses exhibited concentrated mutations at 17–34 discrete locations. These findings reveal viral properties associated with mucosal HIV-1 transmission and a limited set of rapidly evolving adaptive mutations driven primarily, but not exclusively, by early cytotoxic T cell responses.
A COMPARATIVE STUDY OF FUZZY LOGIC CONTROLLERS FOR BLDC MOTOR DRIVE

The development of high performance variable speed brushless dc motor drive is very important in all industrial applications. Generally, a high performance BLDC motor drive system must have good dynamic speed response, reference speed command tracking capability and load regulating response. Conventional controller such as PI, PID does not provide good dynamic response due to the problem of non-linearity, difficulty in the tuning of controller parameters. With the fast growing of intelligent controllers for precise motor speed control, fuzzy logic controllers are taken in this paper. This paper demonstrates a comparative study of PI, fuzzy logic, hybrid fuzzy PID controllers using MATLAB/SIMULINK environment.
Peripheral and embedded: relational patterns of lone-actor terrorist radicalization

ABSTRACT This article provides a comparative analysis of lone-actor terrorist radicalization from a relational perspective. Extant research on lone-actor terrorism has shown that lone actors are rarely as “lone” as public perceptions suggest. In most cases, lone-actor terrorists have some social ties to established radical groups. Accordingly, this article asks (1) why these individuals do not integrate into the radical groups they frequent and engage in collective violence, and (2) if they do integrate, why do they then end up engaging in violence on their own? The article argues that patterns of lone-actor terrorist radicalization can be categorized according to the extent and evolution of their loneness. It highlights two broad patterns of lone-actor radicalization in relation to broader radical groups/movements – peripheral and embedded – and explores the reasons why some lone-actor terrorists remain peripherally integrated in radical groups, while others become more embedded only to engage in violence alone. The article is based on qualitative research, drawing on a geographically and ideologically diverse sample of cases (N = 25), and access to restricted material. The article identifies and theorizes five recurrent radicalization trajectories, which are variations of the peripheral and embedded patterns, and discuss the implications for prevention/interdiction.
SUPERNOVA PROPAGATION AND CLOUD ENRICHMENT: A NEW MODEL FOR THE ORIGIN OF 60Fe IN THE EARLY SOLAR SYSTEM

The radioactive isotope 60Fe (T1/2 = 1.5 Myr) was present in the early solar system. It is unlikely that it was injected directly into the nascent solar system by a single, nearby supernova (SN). It is proposed instead that it was inherited during the molecular cloud (MC) stage from several SNe belonging to previous episodes of star formation. The expected abundance of 60Fe in star-forming regions is estimated taking into account the stochasticity of the star-forming process, and it is showed that many MCs are expected to contain 60Fe (and possibly 26Al [T1/2 = 0.74 Myr]) at a level compatible with that of the nascent solar system. Therefore, no special explanation is needed to account for our solar system's formation.
Co-Adaptation and the Emergence of Structure

Co-adaptation (or co-evolution), the parallel feedback process by which agents continuously adapt to the changes induced by the adaptive actions of other agents, is a ubiquitous feature of complex adaptive systems, from eco-systems to economies. We wish to understand which general features of complex systems necessarily follow from the (meta)-dynamics of co-adaptation, and which features depend on the details of particular systems. To begin this project, we present a model of co-adaptation (“The Stigmergy Game”) which is designed to be as a priori featureless as possible, in order to help isolate and understand the naked consequences of co-adaptation. In the model, heterogeneous, co-adapting agents, observe, interact with and change the state of an environment. Agents do not, ab initio, directly interact with each other. Agents adapt by choosing among a set of random “strategies,” particular to each agent. Each strategy is a complete specification of an agent's actions and payoffs. A priori, all environmental states are equally likely and all strategies have payoffs that sum to zero, so without co-adaptation agents would on average have zero “wealth”. Nevertheless, the dynamics of co-adaptation generates a structured environment in which only a subset of environmental states appear with high probability (niches) and in which agents accrue positive wealth. Furthermore, although there are no direct agent-agent interactions, there are induced non-trivial inter-agent interactions mediated by the environment. As a function of the population size and the number of possible environmental states, the system can be in one of three dynamical regions. Implications for a basic understanding of complex adaptive systems are discussed.
Outage-optimized distributed quantizers for multicast beamforming

We consider a slow-fading multicast channel with one T-antenna transmitter and K single-antenna receivers with the goal of minimizing channel outage probability using quantized beamforming. Our focus is on a distributed limited feedback scenario where each receiver can only quantize and send feedback information regarding its own receiving channels. A classical result in point-to-point quantized beamforming is that a necessary and sufficient condition for full diversity is to have ⌈log2 T⌉ bits from the receiver. We first generalize this result to multicast beamforming systems and show that a necessary and sufficient condition to achieve full diversity for all receivers is to have ⌈log2 T⌉ bits from each receiver. Also, for a two-receiver system and with R feedback bits per receiver, we show that the outage performance with quantized beamforming is within O(2-R/32T2)dBs of the performance with full channel state information at the transmitter (CSIT). This constitutes, in the context of multicast channels, the first example of a distributed limited feedback scheme whose performance can provably approach the performance with full CSIT.
Neutral to happy emotion conversion by blending prosody and laughter

In this paper, we propose a method to convert synthesised neutral speech to happy emotion speech by prosody modification and synthesizing laughter sequence. Excitation source features of verbal (spoken) and non-verbal (laughter) segments of elicited happy emotion are separately analysed and incorporated in the neutral speech. Pitch contours of verbal segments of the happy emotion are divided into three components and analysed separately for incorporation. Laughter sequence is synthesised by incorporating the appropriate pitch period and strength of excitation contours on a synthesised vowel utterance. Modulated frication noise is added to the laughter segments to enhance the quality further. The effectiveness of the synthesized happy speech is confirmed by the waveforms, spectrograms and subjective evaluations.
Exploiting Visual Notations for Data Exploration: The EFESTO Platform

The EFESTO platform allows the creation of interactive workspaces supporting end users in the exploration and seamless composition of heterogeneous data sources. By means of a visual paradigm implemented within a Web composition environment, the end users dynamically create "live" mashups where relevant information, extracted from different types of data sources including the Linked Open Data, and functions that can be performed on it can be flexibly shaped-up at runtime.
Fast multi-frame reference video encoding with key frames

Enhanced reference picture selection in H.264 enables increasing compression efficiency at the expense of increasing complexity, in other words encoding time. We search how we can select the best multiple reference pictures by a fast, computationally efficient method. We propose a simple histogram-similarity based method for selecting the best set of multiple reference pictures. Out-of-order coding of these frames is implemented by means of pyramid encoding. Experimental results show that the proposed approach can provide encoding time saving up to 22% with similar picture quality and bitrate for selected video sequences.
A search for small noncoding RNAs in Staphylococcus aureus reveals a conserved sequence motif for regulation

Bioinformatic analysis of the intergenic regions of Staphylococcus aureus predicted multiple regulatory regions. From this analysis, we characterized 11 novel noncoding RNAs (RsaA‐K) that are expressed in several S. aureus strains under different experimental conditions. Many of them accumulate in the late-exponential phase of growth. All ncRNAs are stable and their expression is Hfq-independent. The transcription of several of them is regulated by the alternative sigma B factor (RsaA, D and F) while the expression of RsaE is agrA-dependent. Six of these ncRNAs are specific to S. aureus, four are conserved in other Staphylococci, and RsaE is also present in Bacillaceae. Transcriptomic and proteomic analysis indicated that RsaE regulates the synthesis of proteins involved in various metabolic pathways. Phylogenetic analysis combined with RNA structure probing, searches for RsaE‐mRNA base pairing, and toeprinting assays indicate that a conserved and unpaired UCCC sequence motif of RsaE binds to target mRNAs and prevents the formation of the ribosomal initiation complex. This study unexpectedly shows that most of the novel ncRNAs carry the conserved C−rich motif, suggesting that they are members of a class of ncRNAs that target mRNAs by a shared mechanism.
Building a community mapping and resource mobilization framework: mapmycity.org, servemycity.org, and resourcemycity.org

In this paper, we present a framework to allow community leaders, politicians, outside philanthropic interests, and any other members of the general public to effect positive community transformation through the visualization of community statistics and the mobilization of resources. Our framework includes three websites: for visualizing statistics [1], mobilizing volunteers [2], and managing the allocation of resources [3].
Australian Marketing Scholars’ Research Impact: An Update and Extension

Academics around the world are being subject to increasing scrutiny, especially in terms of research performance and Australian marketing academics are not exception. The present paper examines their research impact, updating and extending an earlier ANZMAC paper (Razzaque and Wilkinson, 2007) and providing research impact benchmarks for Level B, Level C, Level D and Level E marketing academics in Australia.
TS-Trees: A Non-Alterable Search Tree Index for Trustworthy Databases on Write-Once-Read-Many (WORM) Storage

Trustworthy data processing, which ensures the credibility and irrefutability of data, is crucial in many business applications. Recently, the write-once-read-Many (WORM) devices have been used as trustworthy data storage. Nev ertheless, how to efficiently retrieve data stored in WORM devices has not been addressed sufficiently and thus remains a grand challenge for large trustworthy databases. In this paper, we describe a trustworthy search tree framework (called TS-tree), which is a simple yet effective non- alterable search tree index for trustworthy databases. It can take the role of B-trees in trustworthy databases to answer various queries including range queries. It is efficient and scalable on large databases. A systematic simulation verifies our design.