Miracle-dz/UniFAR-FTUs huggingface dataset:
KDD Workshop on Machine Learning in Finance

The finance industry is constantly faced with an ever evolving set of challenges including credit card fraud, identity theft, network intrusion, money laundering, human trafficking, and illegal sales of firearms. There is also the newly emerging threat of fake news in financial media that can lead to distortions in trading strategies and investment decisions. In addition, traditional problems such as customer analytics, forecasting, and recommendations take on a unique flavor when applied to financial data. A number of new ideas are emerging to tackle all these problems including semi-supervised learning methods, deep learning algorithms, network/graph based solutions as well as linguistic approaches. These methods must often be able to work in real-time and be able handle large volumes of data. The purpose of this workshop is to bring together researchers and practitioners to discuss both the problems faced by the financial industry and potential solutions. We plan to invite regular papers, positional papers and extended abstracts of work in progress. We will also encourage short papers from financial industry practitioners that introduce domain specific problems and challenges to academic researchers.
Unsupervised Learning Style Classification for Learning Path Generation in Online Education Platforms

Online education, which educates students that cannot be present at school, has become an important supplement to traditional education. Without the direct supervision and instruction of teachers, online education is always concerned with potential distractions and misunderstandings. Learning Style Classification (LSC) is proposed to analyze the learning behavior patterns of online learning users, based on which personalized learning paths are generated to help them learn and maintain their interests. Existing LSC studies rely on expert-labored labeling, which is infeasible in large-scale applications, so we resort to unsupervised classification techniques. However, current unsupervised classification methods are not applicable due to two important challenges: C1) the unawareness of the LSC problem formulation and pedagogy domain knowledge; C2) the absence of any supervision signals. In this paper, we give a formal definition of the unsupervised LSC problem and summarize the domain knowledge into problem-solving heuristics (which addresses C1). A rule-based approach is first designed to provide a tentative solution in a principled manner (which addresses C2). On top of that, a novel Deep Unsupervised Classifier with domain Knowledge (DUCK) is proposed to convert the discovered conclusions and domain knowledge into learnable model components (which addresses both C1 and C2), which significantly improves the effectiveness, efficiency, and robustness. Extensive offline experiments on both public and industrial datasets demonstrate the superiority of our proposed methods. Moreover, the proposed methods are now deployed in the Huawei Education Center, and the ongoing A/B testing results verify the effectiveness of the methods.
Quasars' Optical Polarization and Balmer Edge Feature Revealed by Ultra-Violet, and Polarized Visible to Near Infrared Emissions

Polarized emission from a quasar is produced by wavelength-independent electron scattering surrounding its accretion disc, and thus avoid the contamination from its host galaxy and reveal the intrinsic emission spectrum of the accretion disc. Ultra-violet (UV) emission from a quasar is normally free from the contamination from its host galaxy. Polarization fraction of the quasar's disc emission can therefore be determined by comparing total UV emission with polarized visible to near-infrared (NIR) emission; and the resulting continuum spectrum from UV to infrared can reveal the theoretically expected Balmer edge absorption feature. We fit the polarized spectra in visible and NIR bands together with the total UV spectra of two type-1 quasars (3C 95, 4C 09.72), to an extended geometrically thin and optically thick accretion disc model. In addition to the standard model, we include the Balmer edge absorption due to co-rotational neutral gas on a narrow annulus of the accretion disc. We find that the extended thin accretion disc model provides adequate description on the continuum spectra of the two quasars from UV to NIR wavelengths. A Monte-Carlo-Markov-Chain fitting to the continuum spectra is able to well constrain the true polarization fraction of the disk emission, which allows the Balmer edge feature to be completely revealed from polarized visible to UV continua. The Balmer edge feature is prominent in both quasars' spectra, and is significantly broadened due to the orbital motion of gas in the accretion disc. The broadening of the Balmer edge feature is therefore related to the quasar's inclination. This work proves the concept of determining quasar's inclination from the Balmer edge feature in their continuum spectra.
Mechanisierung mathematischer erfahrung oder : Turings problem

Das Entscheidungsproblem ist geldst, wenn man ein Verfahren kennt, das bei einem vorgelegten logischen Ausdruck durch endlich viele Operationen die Entscheidung uber die Allgemeingultigkeit bzw. Erfullbarkeit erlaubt The processes of problem solving, it is turning out, are the familiar processes of noticing, searching, modifying the search direction on the basis of clues, and so on. It looks more and more as if problem solving is accomplished through complex structures of familiar simple elements. The growing proof [meine Betonung] is that we can simulate problem solving in a number of situations using no more than these simple elements as the building blocks of our programs. that the central nervous system is a symbol-processing system, that its memory is organized in terms of lists and list structures of associated symbols, and that it is capable of executing sequences of behaviors organized as hierarchical list structures.
Control Co-Design Under Uncertainties: Formulations

This article explores various uncertain control co-design (UCCD) problem formulations. While previous work offers formulations that are method-dependent and limited to only a handful of uncertainties (often from one discipline), effective application of UCCD to real-world dynamic systems requires a thorough understanding of uncertainties and how their impact can be captured. Since the first step is defining the UCCD problem of interest, this article aims at addressing some of the limitations of the literature by identifying possible sources of uncertainties in a general UCCD context and then formalizing ways in which their impact is captured through problem formulation alone (without having to immediately resort to solution strategies). We first develop a universal UCCD formulation and discuss its fundamental elements. Issues such as the treatment of the objective function, the challenge of the analysis-type equality constraints, and various formulations for inequality constraints are discussed. Then, more specialized problem formulations such as the risk-neutral and risk-averse stochastic, worst-case robust, probabilistic robust, fuzzy expected value, and possibilistic chance-constrained UCCD formulations are presented. Key concepts from these formulations, along with insights from closely-related fields, such as robust and stochastic control theory, are discussed, and future research directions are identified.
Chiral spin states in polarized kagome spin systems with spin-orbit coupling

We study quantum spin systems with a proper combination of geometric frustration, spin-orbit coupling and ferromagnetism. We argue that such a system is likely to be in a chiral spin state, a fractional quantum Hall (FQH) state for bosonic spin degrees of freedom. The energy scale of the bosonic FQH state is of the same order as the spin-orbit coupling and ferromagnetism --- overall much higher than the energy scale of FQH states in semiconductors.
Expression and folding of recombinant chlamydial outer membrane proteins

The Chlamydiaceae are obligate intracellular pathogens of eukaryotic cells. These few species are responsible for a wide variety of human and animal diseases, including trachoma, sexually transmitted genital infections, pneumonia and abortion. Female infertility secondary to chronic pelvic inflammation is a particularly important and relatively common complication of C. trachomatis infection. The cysteine-rich Major Outer Membrane Protein (MOMP) is the immunodominant chlamydial protein and a primary vaccine target. It is predicted to function as a general diffusion porin that may also, through intraand/or intermolecular disulphide bond formation, play an important structural role in maintaining stability of the organism in the absence of a peptidoglycan layer. However, vaccine development and examining the specific biochemistry of MOMP in situ is problematic due to difficulties involved in culturing the organisms and the presence of other chlamydial membrane proteins. A dual approach was taken to develop a recombinant system to express MOMP in E. coli. Full length MOMP expressed with the E. coli ompT signal sequence was shown to be successfully transported to the outer membrane of the cell. A proportion of the protein solubilised from the membrane eluted as trimers during size exclusion chromatography, and formed porin-like channels in planar lipid bilayers. Mature MOMP lacking a signal sequence accumulated in inclusion bodies when expressed in E. coli. These were denatured and refolded in vitro to produce higher order complexes of
Seasonal fire danger forecasts for supporting fire prevention management in an eastern Mediterranean environment: the case of Attica, Greece

Abstract. Forest fires constitute a major environmental and socioeconomic hazard in the Mediterranean. Weather and climate are among the main factors influencing forest fire potential. As fire danger is expected to increase under changing climate, seasonal forecasting of meteorological conditions conductive to fires is of paramount importance for implementing effective fire prevention policies. The aim of the current study is to provide high-resolution (∼9 km) probabilistic seasonal fire danger forecasts, utilizing the Canadian Forest Fire Weather Index (FWI) for the Attica region, one of the most fire-prone regions in Greece and the Mediterranean, employing the fifth-generation ECMWF seasonal forecasting system (SEAS5). Results indicate that, depending on the lead time of the forecast, both the FWI and ISI (Initial Spread Index) present statistically significant high discrimination scores and can be considered reliable in predicting above-normal fire danger conditions. When comparing the year-by-year fire danger predictions with the historical fire occurrence recorded by the Hellenic Fire Service database, both seasonal FWI and ISI forecasts are skilful in identifying years with a high number of fire occurrences. Overall, fire danger and its subcomponents can potentially be exploited by regional authorities in fire prevention management regarding preparedness and resources allocation.
Sensitivity of Heinrich-type ice-sheet surge characteristics to boundary forcing perturbations

Abstract. Heinrich-type ice-sheet surges are one of the prominent signals of glacial climate variability. They are characterised as abrupt, quasi-periodic episodes of ice-sheet instabilities during which large numbers of icebergs are released from the Laurentide ice sheet. The mechanisms controlling the timing and occurrence of Heinrich-type ice-sheet surges remain poorly constrained to this day. Here, we use a coupled ice sheet–solid Earth model to identify and quantify the importance of boundary forcing for the surge cycle length of Heinrich-type ice-sheet surges for two prominent ice streams of the Laurentide ice sheet – the land-terminating Mackenzie ice stream and the marine-terminating Hudson ice stream. Both ice streams show responses of similar magnitude to surface mass balance and geothermal heat flux perturbations, but Mackenzie ice stream is more sensitive to ice surface temperature perturbations, a fact likely caused by the warmer climate in this region. Ocean and sea-level forcing as well as different frequencies of the same forcing have a negligible effect on the surge cycle length. The simulations also highlight the fact that only a certain parameter space exists under which ice-sheet oscillations can be maintained. Transitioning from an oscillatory state to a persistent ice streaming state can result in an ice volume loss of up to 30 % for the respective ice stream drainage basin under otherwise constant climate conditions. We show that Mackenzie ice stream is susceptible to undergoing such a transition in response to all tested positive climate perturbations. This underlines the potential of the Mackenzie region to have contributed to prominent abrupt climate change events of the last deglaciation.
JBSED-03-2021-0023_proof 182..196

Purpose –The purpose of this paper is to examine and explain the complex interrelationships which influence the performance of politically connected firms to create value for their providers of finance and other stakeholders. In doing so, it examines the interrelationships between efficiency and delivering on corporate performance of a firm with political ties. Design/methodology/approach – The authors gathered the literature from the Scopus website. They reviewed the literature of 58 manuscripts about the efficiency and performance of politically connected firms. Findings – The research finds that the better quality of efficiency of politically connected firms is positively related to the corporate performance of politically connected firms. The authors’ theoretical findings corroborate the political theory, agency theory, stakeholder theory, resource dependency theory and stewardship theory. These theories prove that political connections have an impact on firm performance as a politician reinforces the efficacy. To better understand the effect of political connections on solid performance due to efficiency, this study classifies various efficiencies and links them with political ties. Research limitations/implications – Several avenues of research are suggested to examine further the interrelationships identified. Practical implications – The authors’ conceptual findings are valuable for institutional investors, policymakers and stakeholders. To sum up, all theoretical shreds of evidence prove that politically connected firms can enhance performance via efficiency. Originality/value –The paper conceptualizes the efficiency and performance interrelationships of politically connected firms. The extant literature comparison allows an assessment of the extent to which different efficiency contexts lead to differences in performance.
Music Performance Markup: Format and Software Tools Report

With Music Performance Markup (MPM) we introduce a new XML format for describing musical performances in a systematic way. The format builds upon a series of mathematical models that capture the characteristics of performance features such as continuous tempo and dynamics transitions, articulations, and metrical ac-centuations. Bundled with MPM comes an infrastructure of documentations and software tools. This paper aims to provide an overview of and introduction to MPM, its infrastructure and ongoing development activities.
Comparison of sampling and diagnostic techniques for recovery of Mannheimia haemolytica and respiratory microbiome characterization from feedlot cattle

William Byrn Crosby (  wbc95@msstate.edu ) Mississippi State University College of Veterinary Medicine https://orcid.org/0000-0003-0140-3664 Lee J. Pinnell Veterinary Education, Research, and Outreach Program, Texas A&M University, Canyon, TX John T. Richeson Department of Agricultural Sciences, West Texas A&M University, Canyon, TX Cory Wolfe Veterinary Education, Research, and Outreach Program, Texas A&M University, Canyon, TX Jake Castle Veterinary Education, Research, and Outreach Program, Texas A&M University, Canyon, TX John Dustin Loy Nebraska Veterinary Diagnostic Center, School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE Sheryl P. Gow Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK Keun Seok Seo Department of Comparative Biological Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS Sarah F. Capik Texas A&M AgriLife Research, Amarillo, TX Amelia R. Woolums Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS Paul S. Morley Veterinary Education, Research, and Outreach Program, Texas A&M University, Canyon, TX https://orcid.org/0000-0001-8138-2714
Review Article Transformation in site monitoring practices through risk based monitoring

As the current trends in clinical trial industry, is evolving day by day and adopting upcoming technology to integrate data from different sources into risked based monitoring (RBM) Portal, to increase efficient tracking system in a way that help in understanding site characteristic and make on-site monitoring visit more focused and accurate. Transformation from traditional monitoring method to RBM solution will significantly improve quality of data and will also reduce study risk and time. RBM is a standardized, systematic approach to identify and assess potential risk.
Efficiency of herbs and botanicals in pig feeding

SUMMARY Restrictions on the use of antibiotics in animal farming and growing awareness among consumers, who increasingly choose organic products, have forced breeders to look for natural products that stimulate animal productivity. These include herbs and herbal products used for health enhancement and prevention of animal diseases. Herbs and herbal extracts positively influence feed intake by pigs and nutrient digestibility. At the same time, digestive processes are manipulated by removing harmful bacteria and promoting colonization of beneficial micro-organisms in the gastrointestinal tract. Herbs also regulate the physiological functions by improving the resistance of animals to adverse environmental conditions and diseases, which is associated with improved animal productivity. Herbal and botanical additives can also positively influence carcass composition and meat quality. This paper reviews the results of studies investigating the use of herbs and botanicals in pig feeding.
Translocation of 14C from Tops and Roots of Pecan in the Spring following Assimilation of 14CO2 during the Previous Growing Season1

Pecan [Carya illinoensis (Wang) K. Koch] seedlings in their first year of growth were treated weekly with 14CO2 for one growing season, then reciprocally grafted with untreated seedlings, and tops and roots were autoradiographed during shoot elongation the following season. Translocation of 14C labelled substrates was acropetal. The root was the major storage organ for reserve substrates.
Chemical Thinning of Peach Fruits with CGA 15281 and CGA 178561

Beta-chloroethyl-methyl-bis-benzyloxy-silane (CGA 15281) was applied to 6 Eastern U.S. grown peach (Prunus persica (L.) Batsch) cultivars. Thinning response varied considerably with cultivar, timing, concentration and year. Unpredictable and commercially unacceptable leaf abscission occurred with most cultivars during the three-year period. Adequate thinning was achieved without excessive leaf abscission (10% or less) with only one treatment on 3 cultivars (‘Redhaven’, ‘Loring’, and ‘Sunhigh’) during the 3-year period. Reproducibility between years was not good. Unpruned trees or long 2-year-old limbs lost a greater portion of fruit at the base of shoots and on the interior of the trees than trees pruned to a uniform shoot length. The thinning response to CGA 17856 (an analogue of CGA 15281) was compared to the same rate of CGA 15281 on 5 cultivars. A tendency to greater leaf abscission was observed with CGA 17856.
Generation and application of the equations of condition for high order Runge-Kutta methods

This thesis develops the equations of condition necessary for determining the coefficients for Runge-Kutta methods used in the solution of ordinary differential equations. The equations of condition are developed for Runge-Kutta methods of order four through order nine. Once developed, these equations are used in a comparison of the local truncation errors for several sets of Runge-Kutta coefficients for methods of order three up through methods of order eight.
Trajectory and Power Optimization in sub-THz band for UAV Communications

Vapor loss and molecular absorption make the transmission distance in sub-Terahertz bands a challenge, especially in mobile statues such as UAVs communication. The molecular absorption element is an essential part of the path loss in THz communication channel modeling that cannot be neglected. Along this direction, we investigated the UAV trajectories in sub-THz band. To maximize the secrecy rate of the UAVs communication, an optimization problem has been proposed to jointly optimize the trajectory and transmit power. To enhance the obtained average secrecy rate, MIMO communication and a cooperative UAV jammer strategy were used in this paper. Also, analysis and simulations results were presented to show the performance of UAV-ground communication at THz communications. Finally, Secrecy Outage Probability was obtained for each UAV trajectories in different flight periods to examine the performance of physical layer security added to the UAV-ground communication at sub-THz communication.
On Dirichlet series whose coefficients are class numbers of binary quadratic forms

For an integer d > 0 (resp. d < 0) let hd denote the number of Sl 2(Z)-equivalence classes of primitive (resp. primitive positive-definite) integral binary quadratic forms of discriminant d. For where t and u are the smallest positive integral solutions of the equation t 2 − du 2 = 4 if d is a non-square and εd = 1 if d is a square.
A fragmentary leptonectid ichthyosaurian from the lower Pliensbachian of Luxembourg

Despite abundant fossils, the quality of the fossil record of Early Jurassic marine reptiles strongly fluctuates with time and space. Pliensbachian strata have yielded very few marine reptile remains, especially outside of England, obscuring the evolution of marine reptiles during the middle part of the Early Jurassic. We report a new Pliensbachian locality from Luxembourg that contains abundant marine fauna and ichthyosaurian remains likely representing a single individual, composed of a partial snout, a possible surangular, two centra, and several ribs and gastralia. Ammonites and belemnites place this locality within the Valdani-Luridum Ammonite subzones of the Ibex Ammonite Zone, lower Pliensbachian. We assign the new ichthyosaur specimen to the clade Leptonectidae, using a combination of features from the snout and teeth. This specimen indicates that large neoichthyosaurians were present in multiple places of the European archipelago in all stages of the Early Jurassic and suggests that the ichthyosaurian faunae of western Europe remained essentially similar across the Sinemu-rian–Pliensbachian interval.