Miracle-dz/UniFAR-FTUs huggingface dataset:
Linked data quality of DBpedia, Freebase, OpenCyc, Wikidata, and YAGO

In recent years, several noteworthy large, cross-domain and openly available knowledge graphs (KGs) have been created. These include DBpedia, Freebase, OpenCyc, Wikidata, and YAGO. Although extensively in use, these KGs have not been subject to an in-depth comparison so far. In this survey, we provide data quality criteria according to which KGs can be analyzed and analyze and compare the above mentioned KGs. Furthermore, we propose a framework for finding the most suitable KG for a given setting.
Complete characterization of the water dimer vibrational ground state and testing the VRT(ASP-W)III, SAPT-5st, and VRT(MCY-5f) surfaces

We report the observation of extensive a- and c-type rotation-tunnelling (RT) spectra of (H2O)2 for Ka = 0–3, and (D2O)2 for Ka = 0–4. These data allow a detailed characterization of the vibrational ground state to energies comparable to those of the low-lying (70–80 cm−1) intermolecular vibrations. We present a comparison of the experimentally determined molecular constants and tunnelling splittings with those calculated on the VRT(ASP-W)III, SAPT-5st, and VRT(MCY-5f) intermolecular potential energy surfaces. The SAPT-5st potential reproduces the vibrational ground state properties of the water dimer very well. The VRT(MCY-5f) and especially the VRT(ASP-W)III potentials show larger disagreements, in particular for the bifurcation tunnelling splitting.
A 3GHz Switching DC-DC Converter Using Clock-Tree Charge-Recycling in 90nm CMOS with Integrated Output Filter

A 90nm buck converter is intended for complex multi-core ICs. Using the 3GHz system clock for switching reduces the area to 0.27mm2 and allows the output filter to be integrated. Efficiency is increased by recycling clock charge and delivering it to the load instead of ground. A dedicated 3GHz clock circuit driving 12pF consumes 39.9mW. In contrast, a combined clock and converter circuit consumes 56.2mW and delivers 25.7mW at the converter output. Regulation is achieved through PWM of the clock. The circuit converts 1.0V to between 0.5 to 0.7V at 40 to 100mA.
The Impact of Perceived Social Environment on Students' Entrepreneurial Intention: A Chinese Perspective

This research examines the impact of perceived social environment on entrepreneurial intention based on the mediating role of entrepreneurial self-efficacy (ESE) in the context of China. Our results indicated that perceived social environment have positive impact on students' entrepreneurial intention and the impact among two specific role of perceived environment is different. Inspiration has the positive impact on entrepreneurial intention through the mediating role of ESE, while incubation resources have the direct impact on entrepreneurial intention.
In vivo relationship between the clinical epicondylar axis and the anterior pelvic plane in normal subjects

Background: Several researchers consider the clinical epicondylar axis (CEA) as the functional flexion-extension axis of the knee. The anterior pelvic plane (APP) is commonly used as an anatomical reference plane of the pelvis. However, no study has investigated the relationship of the APP with the CEA and PCA. In this study, we aimed to investigate the relationship of the APP with the CEA and posterior condylar axis (PCA) in the standing and supine positions. Methods: We recruited 77 healthy Japanese subjects for this study, and carried out measurements using the Hip CAS? system, a 3D system used for the assessment of lower extremity alignment. Results: The mean femoral neck anteversion was 16.33°. There was an approximate discrepancy of 6° between the male and the female in anatomy (15.73° and 21.15° in the male and female subjects, respectively). The mean condylar twist angle (CTA) was 6.86° and the mean APP-PCA value in the standing position was ﹣6.88°. The mean APP-CEA value in the standing position was 0.02°, and the discrepancy between males and females was only 0.21° (0.09° and ﹣0.13° for the male and female subjects, respectively). This meant that Xp axis of APP and CEA were almost parallel. On the other hand, the mean APP-CEA value in the supine position was 7.07° (male subjects = 9.48°; female subjects = 5.62°). Here, the CEA was approximately parallel to the horizontal axis of the APP, which was compatible with the neutral position of the knee and hip joint, and anatomically and kinesiologically justified in normal subjects. Conclusion: CEA was approximately parallel to the horizontal axis of the APP. These results are compatible with regard to the neutral position of the knee and hip joints, and anatomically and kinesiologically justified in normal subjects. Moreover, CEA is a potential reference axis for the insertion of the femoral component in THA.
Features of Psychopathology in Self-Injuring Female College Students

Although research on nonsuicidal self-injury (NSSI) is accumulating, there is as yet little data on psychopathological features associated with NSSI in nonclinical samples. College students may be particularly susceptible to engaging in NSSI and NSSI may be phenomenologically and etiologically different for males and females. This archival study examined differences between college student women with (n = 34) and without (n = 32) a history of NSSI in scores on the clinical scales and subscales of the Personality Assessment Inventory (PAI). Multivariate analyses revealed significantly higher levels of depression, anxiety, borderline personality features, suicidality, and certain psychotic features in self-injurers. Follow-up analysis identified four symptom themes associated with NSSI across diagnostic categories: emotional distress, physiological distress, cognitive distortion, and interpersonal difficulties. This study confirms previous findings of higher levels of affective symptoms in self-injurers. Un.
Supporting the Learning of Recursive Problem Solving

Abstract This research is about the problem solving activities of novice programmers as they learn to create recursive LISP programs. Their problem solving not only includes the issue of mental models, but also how to use these mental models in conjunction with other problem solving techniques. In fact, at various stages of their learning, learners seem to use different packages of problem solving methods. Each of these packages we call a mental method. In this article, we discuss the PETAL learning environment which assists learners in the use of three of these mental methods: the syntactic method, the analytic method and the analysis/synthesis method. PETAL externalizes each mental method through its own customized interface, called a programming environment tool #opPET#cp. Such externalization helps learners internalize concepts, and organize relevant knowledge and generally leads to improved learning. The PETAL System itself is presented. Next we discuss a study where one group of students used PETAL .
An investigation on identifying SSL traffic

The importance of knowing what type of traffic is flowing through a network is paramount to its success. Traffic engineering, quality of service, identifying critical business applications, intrusion detection systems, as well as network management activities all require the base knowledge of what traffic is flowing over a network before any further steps can be taken. With Secure Socket Layer (SSL) traffic on the rise due to applications securing or concealing their traffic via encryption, the ability to determine what applications are running within a network is getting more and more difficult. Traditional methods of traffic classification through port numbers and deep packet inspection tools have been deemed inadequate despite their continued popular usage. The purpose of this work is to investigate if a machine learning approach can be used with flow features to identify SSL traffic in a given network trace. To this end, different machine learning methods, namely AdaBoost, C4.5, RIPPER, and Naive Bayesian techniques, are investigated without the use of port numbers, Internet Protocol addresses, or payload information.
EVENT DATE MODEL: A ROBUST BAYESIAN TOOL FOR CHRONOLOGY BUILDING

We propose a robust event date model to estimate the date of a target event by a combination of individual dates obtained from archaeological artifacts assumed to be contemporaneous. These dates are affected by errors of different types: laboratory and calibration curve errors, irreducible errors related to contaminations, and tapho-nomic disturbances, hence the possible presence of outliers. Modeling based on a hierarchical Bayesian statistical approach provides a simple way to automatically penalize outlying data without having to remove them from the dataset. Prior information on individual irreducible errors is introduced using a uniform shrinkage density with minimal assumptions about Bayesian parameters. We show that the event date model is more robust than models implemented in BCal or OxCal, although it generally yields less precise credibility intervals. The model is extended in the case of stratigraphic sequences that involve several events with temporal order constraints (relative dating), or with duration, hiatus constraints. Calculations are based on Markov chain Monte Carlo (MCMC) numerical techniques and can be performed using ChronoModel software which is freeware, open source and cross-platform. Features of the software are presented in Vibet et al. (ChronoModel v1.5 user's manual, 2016). We finally compare our prior on event dates implemented in the ChronoModel with the prior in BCal and OxCal which involves supplementary parameters defined as boundaries to phases or sequences.
Crossing the finish line faster when paddling the Data Lake with Kayak

Paddling in a data lake is strenuous for a data scientist. Being a loosely-structured collection of raw data with little or no meta-information available, the difficulties of extracting insights from a data lake start from the initial phases of data analysis. Indeed, data preparation, which involves many complex operations (such as source and feature selection, exploratory analysis, data profiling, and data curation), is a long and involved activity for navigating the lake before getting precious insights at the finish line. In this framework, we demonstrate KAYAK, a framework that supports data preparation in a data lake with ad-hoc primitives and allows data scientists to cross the finish line sooner. KAYAK takes into account the tolerance of the user in waiting for the primitives' results and it uses incremental execution strategies to produce informative previews of these results. The framework is based on a wise management of metadata and on features that limit human intervention, thus scaling smoothly when the data lake evolves.
Modeling and analysis of a variable bit rate video multiplexer

The authors develop a new analytic model for a variable bit rate video source, which can model a variety of video applications by a suitable choice of model parameters. Using the model they studied the performance of a video multiplexer that multiplexes several full motion video sources. The video sources were assumed to use a layered coding technique. A service strategy is proposed that guarantees delivery of packets marked essential, whereas nonessential packets may be dropped in the event of congestion. The study showed that with layered coding, good tail probabilities can be obtained for a given number of sources at the expense of some loss for nonessential packets. The performance of the video multiplexer was investigated when the video sources were correlated, and when independent video sources with different thresholds for essential packet rate were multiplexed together. <<ETX>>
The Split Keyboard: An Ergonomics Success Story

Objective: The author reviews the paper by Kroemer (1972) on the design of the split geometry keyboard and the subsequent 35 years of research on the topic. Background: It was first suggested in the 1920s that arm strain in the typist could be reduced by splitting the keyboard into two halves and inclining the two halves laterally. The first systematic research on the split keyboard was conducted by Kroemer in the 1960s and published in his 1972 article. Methods: The literature on split geometry keyboards was identified, and the progression of the research was reviewed. Results: The Kroemer article marked the beginning of a prolonged, worldwide research effort to determine whether and how the split keyboard design might improve comfort and prevent pain in keyboard users. Conclusions: In the early 1990s, split keyboard designs began to be broadly commercially available. Clear evidence of a health benefit of the split keyboards emerged in the late 1990s. By 2006, a split keyboard was the number one—selling keyboard, of all keyboards sold, in the U.S. retail market. Application: The history of research on this topic, the challenges to changing the conventional design, and the broader acceptance of the split design are a success story with lessons for all of us.
An Empirical Test of the Interaction between Collective and Individual Reputations

AbstractThis paper provides an empirical model of reputation in which acollectivereputationbothdeterminesandisdetermined-simultaneously-by individual reputations as shown by Tirole [1996]. From a large setof estimated umbrella impacts (impact of a collective reputation onindividual reputations) and contributions to the umbrella, we ﬁnd, inthe case of Bordeaux wines, that the most reputed individual entitiesare not those who get the highest beneﬁt from the umbrella while theyare the only contributors to the umbrella’s reputation.Key Words: Individual Reputation, Collective Reputation, Bor-deaux wines.JEL Classiﬁcation: L15 - L66 - Z13 ∗ We would like to thank TomCoupe, Victor Ginsburgh, GarrettGlasgow, Abdul Noury,Frederic Warzynski and seminar participants at the 31 st Annual Conference of the Eu-ropean Association for Research in Industrial Economics, 1 st European Conference onCognitive Economics, Universite de Reims (OMI-EDJ) and Universite de Paris I (TEAM- behavior and rationality), for helpful comments and suggestions.
Inducing Persistent Flow Disturbances Accelerates Atherogenesis and Promotes Thin Cap Fibroatheroma Development in D374Y-PCSK9 Hypercholesterolemic Minipigs

Background— Although disturbed flow is thought to play a central role in the development of advanced coronary atherosclerotic plaques, no causal relationship has been established. We evaluated whether inducing disturbed flow would cause the development of advanced coronary plaques, including thin cap fibroatheroma. Methods and Results— D374Y-PCSK9 hypercholesterolemic minipigs (n=5) were instrumented with an intracoronary shear-modifying stent (SMS). Frequency-domain optical coherence tomography was obtained at baseline, immediately poststent, 19 weeks, and 34 weeks, and used to compute shear stress metrics of disturbed flow. At 34 weeks, plaque type was assessed within serially collected histological sections and coregistered to the distribution of each shear metric. The SMS caused a flow-limiting stenosis, and blood flow exiting the SMS caused regions of increased shear stress on the outer curvature and large regions of low and multidirectional shear stress on the inner curvature of the vessel. As a result, plaque burden was ≈3-fold higher downstream of the SMS than both upstream of the SMS and in the control artery (P<0.001). Advanced plaques were also primarily observed downstream of the SMS, in locations initially exposed to both low (P<0.002) and multidirectional (P<0.002) shear stress. Thin cap fibroatheroma regions demonstrated significantly lower shear stress that persisted over the duration of the study in comparison with other plaque types (P<0.005). Conclusions— These data support a causal role for lowered and multidirectional shear stress in the initiation of advanced coronary atherosclerotic plaques. Persistently lowered shear stress appears to be the principal flow disturbance needed for the formation of thin cap fibroatheroma.
Federal Reserve Bank of New York Staff Reports Labor Supply Heterogeneity and Macroeconomic Comovement Labor Supply Heterogeneity and Macroeconomic Comovement

This paper presents preliminary findings and is being distributed to economists and other interested readers solely to stimulate discussion and elicit comments. The views expressed in the paper are those of the authors and are not necessarily reflective of views at the Federal Reserve Bank of New York or the Federal Reserve System. Any errors or omissions are the responsibility of the authors. Abstract Standard real business cycle models must rely on total factor productivity (TFP) shocks to explain the observed comovement of consumption, investment, and hours worked. This paper shows that a neoclassical model consistent with observed heterogeneity in labor supply and consumption can generate comovement in the absence of TFP shocks. Intertemporal substitution of goods and leisure induces comovement over the business cycle through heterogeneity in the consumption behavior of employed and unemployed workers. This result owes to two model features introduced to capture important characteristics of U.S. labor market data. First, individual consumption is affected by the number of hours worked: Employed agents consume more on average than the unemployed do. Second, changes in the employment rate, a central factor explaining variation in total hours, affect aggregate consumption. Demand shocks―such as shifts in the marginal efficiency of investment, as well as government spending shocks and news shocks―are shown to generate economic fluctuations consistent with observed business cycles. The views expressed in this paper are those of the authors and do not necessarily reflect the position of the Federal Reserve Bank of New York or the Federal Reserve System.
Low‐degree structure in Mercury's planetary magnetic field

[1] The structure of Mercury's internal magnetic field has been determined from analysis of orbital Magnetometer measurements by the MESSENGER spacecraft. We identified the magnetic equator on 531 low-altitude and 120 high-altitude equator crossings from the zero in the radial cylindrical magnetic field component,Bρ. The low-altitude crossings are offset 479 ± 6 km northward, indicating an offset of the planetary dipole. The tilt of the magnetic pole relative to the planetary spin axis is less than 0.8°. The high-altitude crossings yield a northward offset of the magnetic equator of 486 ± 74 km. A field with only nonzero dipole and octupole coefficients also matches the low-altitude observations but cannot yield off-equatorialBρ= 0 at radial distances greater than 3520 km. We compared offset dipole and other descriptions of the field with vector field observations below 600 km for 13 longitudinally distributed, magnetically quiet orbits. An offset dipole with southward directed moment of 190 nT-RM3yields root-mean-square (RMS) residuals below 14 nT, whereas a field with only dipole and octupole terms tuned to match the polar field and the low-altitude magnetic equator crossings yields RMS residuals up to 68 nT. Attributing the residuals from the offset-dipole field to axial degree 3 and 4 contributions we estimate that the Gauss coefficient magnitudes for the additional terms are less than 4% and 7%, respectively, relative to the dipole. The axial alignment and prominent quadrupole are consistent with a non-convecting layer above a deep dynamo in Mercury's fluid outer core.
On the stochastic heat equation with spatially-colored random forcing

We consider the stochastic heat equation of the following form ∂ ∂t ut(x) = (Lut)(x) + b(ut(x)) + σ(ut(x))Ḟt(x) for t > 0, x ∈ R, where L is the generator of a Levy process and Ḟ is a spatially-colored, temporally white, gaussian noise. We will be concerned mainly with the long-term behavior of the mild solution to this stochastic PDE. For the most part, we work under the assumptions that the initial data u0 is a bounded and measurable function and σ is nonconstant and Lipschitz continuous. In this case, we find conditions under which the preceding stochastic PDE admits a unique solution which is also weakly intermittent. In addition, we study the same equation in the case that Lu is replaced by its massive/dispersive analogue Lu − λu where λ ∈ R. And we describe accurately the effect of the parameter λ on the intermittence of the solution in the case that σ(u) is proportional to u [the “parabolic Anderson model”]. We also look at the linearized version of our stochastic PDE, that is the case when σ is identically equal to one [any other constant works also]. In this case, we study not only the existence and uniqueness of a solution, but also the regularity of the solution when it exists and is unique.
Attribute Pivots for Guiding Relevance Feedback in Image Search

In interactive image search, a user iteratively refines his results by giving feedback on exemplar images. Active selection methods aim to elicit useful feedback, but traditional approaches suffer from expensive selection criteria and cannot predict in formativeness reliably due to the imprecision of relevance feedback. To address these drawbacks, we propose to actively select "pivot" exemplars for which feedback in the form of a visual comparison will most reduce the system's uncertainty. For example, the system might ask, "Is your target image more or less crowded than this image? " Our approach relies on a series of binary search trees in relative attribute space, together with a selection function that predicts the information gain were the user to compare his envisioned target to the next node deeper in a given attribute's tree. It makes interactive search more efficient than existing strategies-both in terms of the system's selection time as well as the user's feedback effort.
Blood Pressure Associates with Standing Balance in Elderly Outpatients

Objectives Assessment of the association of blood pressure measurements in supine and standing position after a postural change, as a proxy for blood pressure regulation, with standing balance in a clinically relevant cohort of elderly, is of special interest as blood pressure may be important to identify patients at risk of having impaired standing balance in routine geriatric assessment. Materials and Methods In a cross-sectional cohort study, 197 community-dwelling elderly referred to a geriatric outpatient clinic of a middle-sized teaching hospital were included. Blood pressure was measured intermittently (n = 197) and continuously (subsample, n = 58) before and after a controlled postural change from supine to standing position. The ability to maintain standing balance was assessed during ten seconds of side-by-side, semi-tandem and tandem stance, with both eyes open and eyes closed. Self-reported impaired standing balance and history of falls were recorded by questionnaires. Logistic regression analyses were used to examine the association between blood pressure and 1) the ability to maintain standing balance; 2) self-reported impaired standing balance; and 3) history of falls, adjusted for age and sex. Results Blood pressure decrease after postural change, measured continuously, was associated with reduced ability to maintain standing balance in semi-tandem stance with eyes closed and with increased self-reported impaired standing balance and falls. Presence of orthostatic hypotension was associated with reduced ability to maintain standing balance in semi-tandem stance with eyes closed for both intermittent and continuous measurements and with increased self-reported impaired standing balance for continuous measurements. Conclusion Continuous blood pressure measurements are of additional value to identify patients at risk of having impaired standing balance and may therefore be useful in routine geriatric care.