Miracle-dz/UniFAR-FTUs huggingface dataset:
PSpice modeling of electrified railway propulsion drive rectifiers for harmonic analysis

A method to construct the electrified railway propulsion drive rectifier in PSpice for EMC assessment is developed. The working mechanisms of a three level NPC PWM rectifier and its logical signal generator are elaborated. Besides that, the convergence problem of PSpice is explained and the proper parametric settings for simulation in this paper are given. At last, the noise spectra for two different loads are compared and the causes for this difference are discussed as well.
Tacit knowledge extraction of skillful operation from expert engineers

We propose a novel method to extract tacit knowledge of skillful operation from expert engineers in the manufacturing industry. The data fusion analysis method that consists of the field-oriented interview, the human motion capture and the video analysis is applied for experts and beginners, and the operational differences between those are analyzed. The tacit knowledge is effectively extracted by returning and confirming the results of the analysis to the subjects. Through examinations applying the method to subjects operating in an industrial factory, the effectiveness of the method is shown.
Online-to-batch Conversions

Let X ,Y, Ŷ denote the instance, label and prediction spaces, D a distribution on X × Y, ` : Y × Ŷ→R+ a loss function and S = ((x1, y1), . , (xm, ym)) the training set consisting of m examples drawn i.i. d. from D. The goal for a supervised learner is to learn a model hS : X→Ŷ that minimizes the generalization error erD[hS ] = E(x,y)∼D[`(y, hS(x))]. If the training examples in S are input sequentially to a given online learning algorithm A, the latter constructs a sequence of models {ht : X→Ŷ, t = 1, . , T + 1} and returns predictions based on them.
On the boundaries of the MIMO-Channel-Capacity with a focus on Line-Of-Sight-Connections

In this paper we show that geometric optimization is the most efcient way to reach maximum channel capacity when the channel is characterized by a power- ful Line-Of-Sight signal component but it will result in larger antenna spacings than they are found customary. To have a quantitative criterion for comparison we rstly derive boundaries for the channel capacity when considering a pure Line-Of-Sight signal component. For nding the upper and lower bound we take into account signal pre-processing strategies in conjunction with systematic power allocation schemes. Having detected these bounds we calculate the capacity in the case of a linear antenna array spaced half-wavelength at both the transmitter as well as the receiver as it is commonly chosen in mobile communications. The capacity turns out adopting values close to the lower bound even if it is optimized best by means of signal processing and power allocation. On the contrary we present an examplary geometrically optimized set of antenna elements, which is dedicated to reach the upper bound of the channel capacity.
Repeat Victimization Among Intimate Partner Violence Victims: The Impact of Guardianship

Despite progress in the application of routine activity theory to violence against women, much remains unknown about guardianship. The current study examined if presence of a capable adult guardian limited the risk of revictimization by an intimate partner, controlling for social support (N = 497). Analyses tested differential impacts of guardians by examining if the presence of the victim’s friends/family, abuser’s friends/family, and/or bystander during the earliest reported physical abuse incident or threat of abuse affected likelihood of revictimization within a year. Odds of revictimization decreased by 60% when the earliest reported physical abuse incident or threat of abuse occurred in the presence of the respondent’s friends/family. Implications for practices and research suggestions are discussed.
An empirical study of build maintenance effort

The build system of a software project is responsible for transforming source code and other development artifacts into executable programs and deliverables. Similar to source code, build system specifications require maintenance to cope with newly implemented features, changes to imported Application Program Interfaces (APIs), and source code restructuring. In this paper, we mine the version histories of one proprietary and nine open source projects of different sizes and domain to analyze the overhead that build maintenance imposes on developers. We split our analysis into two dimensions: (1) Build Coupling, i.e., how frequently source code changes require build changes, and (2) Build Ownership, i.e., the proportion of developers responsible for build maintenance. Our results indicate that, despite the difference in scale, the build system churn rate is comparable to that of the source code, and build changes induce more relative churn on the build system than source code changes induce on the source code. Furthermore, build maintenance yields up to a 27% overhead on source code development and a 44% overhead on test development. Up to 79% of source code developers and 89% of test code developers are significantly impacted by build maintenance, yet investment in build experts can reduce the proportion of impacted developers to 22% of source code developers and 24% of test code developers.
Export-platform foreign direct investment: the Irish experience

Ireland is the most successful EU economy in attracting export-platform foreign direct investment (FDI), and the increased FDI inflows of the 1990s are widely agreed to have been one of the most important factors in generating the remarkable boom that the country experienced over that decade. The present paper considers the confluence of factors - domestic policy changes, fortuitous developments in the European and global economic environment, and the coming to fruition of policy initiatives of earlier eras - that provided the setting for the increased inflows of the period and the changes that they wrought. One of the main findings is that growth-enhancing economic policies - including fiscal prudence, the maintenance of labour-market flexibility and a focus on scienceoriented human capital formation - were crucial for Ireland to derive the full benefits of its FDI-attracting low-corporation-tax regime.
Differential predation on the two colour morphs of Nicaraguan Crater lake Midas cichlid fish: implications for the maintenance of its gold-dark polymorphism

Predation can play an important role in the evolution and maintenance of prey colour polymorphisms. Several factors are known to affect predator choice, including the prey's relative abundance and conspicuousness. In polymorphic prey species, predators often target the most common or most visible morphs. To test if predator choice can explain why in Midas cichlid fish the more visible (gold) morph is also more rare than the inconspicuous dark morph, we conducted predation experiments using two differently coloured wax models in Nicaraguan crater lakes. Contrary to expectations, we observed an overall higher attack rate on the much more abundant, yet less conspicuous dark models, and propose frequency-dependent predation as a potential explanation for this result. Interestingly, the attack rate differed between different types of predators. While avian predators were biased towards the abundant and less colourful dark morphs, fish predators did not show a strong bias. However, the relative attack rate of fish predators seemed to vary with the clarity of the water, as attack rates on gold models went up as water clarity decreased. The relative differential predation rates on different morphs might impact the relative abundance of both colour morphs and thus explain the maintenance of the colour polymorphism. © 2014 The Linnean Society of London, Biological Journal of the Linnean Society, 2014, 112, 123–131.
New Small Learning Communities: Findings from Recent Literature.

An apparatus and method for the vaporization of a mixture of two liquefied gases in chemical equilibrium with a binary compound thereof. The apparatus comprises an enclosed vessel having a liquid zone and a vaporized gas zone. A liquid supply means, in fluid communication with the liquid zone, passes the mixture to be vaporized as a liquid from a supply source into the vessel. A heating element, having a housing disposed about it, extends downward through a portion of the interior of the vessel and is adapted to supply sufficient heat to vaporize a gaseous mixture from the liquid zone. Means for superheating and removing the vaporized gaseous mixture from the vessel are provided. The method of vaporization comprises withdrawing the mixture as a liquid from a supply source and passing it into the vessel to form a liquid phase. The level of the liquid phase is maintained above a predetermined level and sufficient heat is supplied to vaporize a portion of the liquid phase at a temperature greater than the dew point temperature corresponding to vapor having substantially the same composition as the known composition of the liquefied gas mixture from the supply source at known pressure, thereby forming a gaseous mixture. The gaseous mixture is removed from the vessel.
On the XMM-Newton spectra of soft X-ray selected QSOs

We study the XMM-Newton spectra of a sample of 32 soft X-ray selected QSOs. Our goal is to check, using the spectra of moderate redshift (z ∼ 1.5), faint (f 0 . 2 - 8 k e V > 5 x 10 - 1 5 erg cm - 2 s - 1 ) broad-line QSOs, previous claims for either significant intrinsic absorption or spectral hardening at high energies. We derive hardness ratios for all sources and furthermore we perform spectral fits for the 11 brighter sources. The majority of sources have steep spectra r > 1.9. We find a few QSOs with large amounts of intrinsic absorption, as high as N H 10 2 3 cm - 2 . We find no strong evidence for spectral hardening above 2 keV. The coadded QSO spectrum is well described by a single power-law with photon index of ∼1.9, demonstrating that, on average, any effects of absorption are not important. This suggests that the discrepancy between the X-ray background and the (soft X-ray selected) QSO spectrum holds well at the faint fluxes probed here.
Genetic Regulatory Networks

1Department of Electrical & Computer Engineering, College of Engineering, Texas A&M University, College Station, TX 77843-3128, USA 2Translation Genomics Research Institute, Phoenix, AZ 85004, USA 3Bioinformatics Center, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan 4Digital Signal Processing Laboratory, Department of Electrical Engineering, “Politechnica” University of Bucharest, 060032 Bucharest, Romania 5Department of Electrical and Computer Engineering, Institute of Technology, University of Minnesota, Minneapolis, MN 55455, USA
Genetic screening of 202 individuals with congenital limb malformations and requiring reconstructive surgery

Background: Congenital limb malformations (CLMs) are common and present to a variety of specialties, notably plastic and orthopaedic surgeons, and clinical geneticists. The authors aimed to characterise causative mutations in an unselected cohort of patients with CLMs requiring reconstructive surgery. Methods: 202 patients presenting with CLM were recruited. The authors obtained G-banded karyotypes and screened EN1, GLI3, HAND2, HOXD13, ROR2, SALL1, SALL4, ZRS of SHH, SPRY4, TBX5, TWIST1 and WNT7A for point mutations using denaturing high performance liquid chromatography (DHPLC) and direct sequencing. Multiplex ligation dependent probe amplification (MLPA) kits were developed and used to measure copy number in GLI3, HOXD13, ROR2, SALL1, SALL4, TBX5 and the ZRS of SHH. Results: Within the cohort, causative genetic alterations were identified in 23 patients (11%): mutations in GLI3 (n = 5), HOXD13 (n = 5), the ZRS of SHH (n = 4), and chromosome abnormalities (n = 4) were the most common lesions found. Clinical features that predicted the discovery of a genetic cause included a bilateral malformation, positive family history, and having increasing numbers of limbs affected (all p<0.01). Additionally, specific patterns of malformation predicted mutations in specific genes. Conclusions: Based on higher mutation prevalence the authors propose that GLI3, HOXD13 and the ZRS of SHH should be prioritised for introduction into molecular genetic testing programmes for CLM. The authors have developed simple criteria that can refine the selection of patients by surgeons for referral to clinical geneticists. The cohort also represents an excellent resource to test for mutations in novel candidate genes.
Augmenting paper to enhance community information sharing

Paper is traditionally considered as a major gap between the physical and electronic worlds, especially after the many attempts that have failed to attain a completely digital world. Paper based artifacts have many affordances that people want to continue to exploit. The work presented here is part of the Campiello project. It describes how the existing paper artifacts in use during the visits to cultural and tourist towns as well as artefacts used for local communities can be extended in order to become a bridge instead of a barrier to the richness of the digital world. After an introduction that describes the Campiello system and the principles that have driven its functionality, a complete design and the current implementation is presented. Finally, we discuss Paper Interface issues and survey the existing approaches in the field.
Word-of-mouth recommender system using preference extraction based on IEC

In this paper, we deal with a word-of-mouth recommender system with a human-friendly robot. First, we explain the background of conventional recommendation systems, and we discuss the availability of smart devices and robot partners for information support. Next, we describe the issues caused in the conventional recommendation method, and propose propose a word-of-mouth recommender system. Furthermore, we propose a preference extraction technique based on interactive evolutionary computation. Finally, we show preliminary experimental results and comparison results using the proposed method, and discuss the effectiveness of word-of-mouth recommender system.
On the formulation, performance and design choices of Cost-Curve Occupancy Grids for stereo-vision based 3D reconstruction

We present a grid-based 3D reconstruction method which integrates all costs given by stereo vision into what we call a Cost-Curve Occupancy Grid (CCOG). Occupancy probabilities of grid cells are estimated in a Bayesian formulation, from the likelihood of stereo cost measurements taken at all distance hypotheses. This is accomplished with only a small set of probabilistic assumptions which we discuss in the paper. We quantitatively characterize the method's performance under different conditions of both image noise and number of used stereo pairs, compared also to traditional algorithms. We complement the study by giving insights on design choices of CCOGs such as likelihood model, window size of the cost function and use of a hole filling method. Experiments were made on a real-world outdoors dataset with ground-truth data.
Modeling collaboration processes to understand and predict group performance

Efficient collaboration support is often a combination of tools and technology with process support. Collaboration processes can be designed based on thinkLets. ThinkLets capture proven work practices as design patterns. While practitioners can facilitate thinkLet based collaboration processes, the process often still needs to be adapted at execution time. Professional facilitators base and predict the effect of such process interventions on a number of observations. However, these observations and choices are often made quite intuitive based on experience. To enable practitioners to also change the collaboration process at execution time, we need a deeper understanding of the mechanisms and effects of such interventions. Therefore, we propose to model and simulate collaboration processes. In this paper, we present the thinkLet approach for designing collaboration process and an initial model on how to model and simulate collaboration processes based on thinkLets.
The power of randomness in bayesian optimal mechanism design

We investigate the power of randomness in the context of a fundamental Bayesian optimal mechanism design problem - a single seller aims to maximize expected revenue by allocating multiple kinds of resources to "unit-demand" agents with preferences drawn from a known distribution. When the agents' preferences are single-dimensional Myerson's seminal work [14] shows that randomness offers no benefit - the optimal mechanism is always deterministic. In the multi-dimensional case, where each agent's preferences are given by different values for each of the available services, Briest et al.[6] recently showed that the gap between the expected revenue obtained by an optimal randomized mechanism and an optimal deterministic mechanism can be unbounded even when a single agent is offered only 4 services. However, this large gap is attained through unnatural instances where values of the agent for different services are correlated in a specific way. We show that when the agent's values involve no correlation or a specific kind of positive correlation, the benefit of randomness is only a small constant factor (4 and 8 respectively). Our model of positively correlated values (that we call the common base value model) is a natural model for unit-demand agents and items that are substitutes. Our results extend to multiple agent settings as well.
A web-based fault diagnostic maintenance system for steam turbines based on domain ontology and expert system

This paper describes the design of a fault diagnostic maintenance system for steam turbines based on a domain ontology of the turbine and coupled to an expert system. The main data and information constituting the system come from disparate data bases with different usage. In this case a database for equipment characteristics and another containing maintenance acts defining symptoms, defects and remedies for maintenance cases. An Expert System (ES) integrated with the domain ontology of the steam turbine is used as a reasoner in order to generate new knowledge. The philosophy of such an approach consists on one hand, in the capitalisation of all the knowledge gathered from both databases and integrated into a single ontology creating relationships between classes. On the other hand, the ES represent a powerful tool in order to exploit the ontological representation for aided diagnostic and maintenance. The final system must be independent from any ontology editor such as Protege, as well as a specific expert system shell that may limit its online use.
Performance evaluation of Motion-JPEG2000 in comparison with H.264/AVC operated in pure intracoding mode

Recently, two new international image and video coding standards have been released: the wavelet-based JPEG2000 standard designed basically for compressing still images, and H.264/AVC, the newest generic standard for video coding. As part of the JPEG2000 suite, Motion-JPEG2000 extends JPEG2000 to a range of applications originally associated with a pure video coding standard like H.264/AVC. However, currently little is known about the relative performance of Motion-JPEG2000 and H.264/AVC in terms of coding efficiency on their overlapping domain of target applications requiring the random access of individual pictures. In this paper, we report on a comparative study of the rate-distortion performance of Motion-JPEG2000 and H.264/AVC using a representative set of video material. Our experimental coding results indicate that H.264/AVC performs surprisingly well on individually coded pictures in comparison to the highly sophisticated still image compression technology of JPEG2000. In addition to the rate-distortion analysis, we also provide a brief comparison of the evaluated coding algorithms in terms of complexity and functionality.
Gender and cultural differences in the association between family roles, social stratification, and alcohol use: a European cross-cultural analysis.

AIMS First, this paper investigates (i) gender differences in associations of social stratification, family roles, and heavy drinking, and (ii) country differences in these associations. Second, it seeks to explain country differences in the associations of social stratification and family roles with alcohol consumption by societal level variables. METHODS Survey data of 25 to 49-years-old from eight European countries were used. Logistic regressions were used to analyse gender differences in the association between family roles (marriage, having children), social stratification (education, employment), and heavy drinking (>20 g/day for women; 30 g/day for men). Gender differences were tested by means of interactions between gender and social stratification/family roles. Structural measures of work desirability, social welfare, and gender equity were used to explain differences in associations across countries. RESULTS The associations between social stratification, family roles, and heavy drinking varied across gender and countries. A country's social welfare system was associated with heavy drinking only among women. Women in countries with a strong social welfare system, such as Nordic countries, tended to drink more heavily if employed, having lower formal education, and a non-traditional family role. In countries with weak social welfare systems or work desirability, heavy drinking was associated with high education, while effects of family roles and employment were small. CONCLUSIONS It appeared that the social welfare system and gender equity of a country determines to a large extent how education, employment, and family roles are associated with heavy drinking.
Title : Inhibition of return biases orienting during the search of complex scenes Short title : IOR during search of complex scenes Authors :

In Klein & MacInnes [1] observers searched a complex scene for a camouflaged target. Reflecting Inhibition of Return (IOR) observers were slower to detect and saccade to uncamouflaged probes that interrupted active search when these were placed in the vicinity of a recent fixation. To explore the generality of this finding of IOR during search, we changed the mental state of the observer at the time of the probes by instructing observers to inspect the scene until they found something interesting and stop there. After this voluntary cessation of search, we presented an uncamouflaged probe that observers were required to foveate. Extending our previous demonstration, we observed a relative increase in the time required to locate these probes when they were in the general region of a previous fixation so long as the scene was maintained. When the scene was removed, probe reaction time was unaffected by distance from the last fixation. The pattern of results supports the proposal that IOR biases overt orienting during search.
The IOIT English ASR system for IWSLT 2015

This paper describes the speech recognition system of IOIT for IWSLT 2015. This year, we focus on improving acoustic and language models by applying some new training techniques based on deep neural networks compared to the last year system. There are two subsystems which are combined by using lattice minimum Bayes-Risk decoding. On the 2013 evaluations set, provided as a test set, we are able to reduce the word error rate of our transcription system from 22.7% of the last year system to 17.6%.