Miracle-dz/UniFAR-FTUs huggingface dataset:
Student Scholarship 2010 Diversification Premium on Indian ADRs During the Financial Crisis

Non-arbitrage asset pricing has been an avenue of unending interest to financial academics and practitioners alike. With increased capital outflow being permitted by developing economies, investors now have easy access to securities issued by foreign firms. The issue investigated in this research is concerned with the persistent presence of arbitrage opportunities between depository receipts and domestic stocks of Indian firms during the recent financial crisis. Instead of being priced in parity with one another during the crisis, ADRs of Indian firms were overpriced by as much as 70% for months on end. This thesis investigates the reasons giving rise to this premium by analyzing causes like benefits from diversification and liquidity.
Measuring Semantic Similarity between Words Using HowNet

Semantic similarity between words is a fundamental issue for many natural language processing applications. The difficulty lies in that how to develop a computational method that is capable of generating satisfactory results close to how humans perceive. In this paper, a novel method is proposed to measure semantic similarity between words using HowNet, which is a renowned Chinese-English bilingual knowledge base. Furthermore, a Chinese thesaurus is used to improve the similarity measuring. Theoretically, our method can be used in many languages while in this case it is applied for English and Chinese. Experiments on English and Chinese word pairs show that our method are closest to human similarity judgments when compared to the major state-of-the-art methods.
Opinion Influence Analysis in Online Forum Threads

This paper treats the phenomenon of opinion influence in online forum threads. Influence among users' opinions is analyzed by taking into consideration the changes in their opinions. Therefore, a change in a user's opinion is modeled as a change of his/her posts' polarity. The hypothesis that underlies our research is that users' opinions may change over time as a consequence of the interactions between them in online discussions such as online forum threads. Moreover, a user's new post in an online forum thread is considered to have an influence on all the posts sent by other users in reaction to this. Our approach to the opinion influence phenomenon that arises in online forum threads is based on Natural Language Processing techniques, Latent Semantic Analysis and Post-Level Sentiment Analysis. The results obtained by us show that all the previous posts that contain opinions have an influence, more or less significant, on a new post in the same online forum thread.
AN INFORMATION HIDING SCHEME BASED ON ( 7 , 4 ) HAMMING CODE ORIENTED WET PAPER CODES

Generally, the embedding quality and the embedding capacity are two important factors in evaluating the performance of information hiding schemes, but they are usually inversely proportional. Thus, to satisfy the different requirements, the users often make a tradeoff between good embedding quality and high embedding capacity. In this paper, a spatial domain technique, embedding binary message bits into a still image based on Hamming code oriented wet paper codes, is discussed and evaluated. We get inspiration from Chang, Chou and Lin’s work and make a critical improvement. The significant difference between their scheme and ours is that we have no specific requirements imposed on the distribution of both the dry pixels and the wet pixels in cover images; wet pixels can be chosen completely in accordance with the characteristics of different cover images as well as the application’s needs. The proposed scheme has been tested with nine commonly-used gray images. Subtle and radical variations to the existing scheme are suggested and proven to provide a significantly improved PSNR.
Sentiment analysis of IMDb movie reviews Machine learning ( 198 : 536 ) -

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Numerical comparison on Shell side performance of Helixchanger with center tube with different helix angles

Computational Fluid Dynamic (CFD) is a useful tool in solving and analyzing problems that involve fluid flows, while shell and tube heat exchanger is the most common type of heat exchanger and widely use in oil refinery and other large chemical processes because it suite for high pressure application. The numerical simulation of Shell & Tube Heat Exchanger with center tube called Helixchanger with center tube with different baffle inclination is to be done. The processes in solving the simulation consist of modeling and meshing the basic geometry of Helixchanger using the CFD package ICEM CFD. Then, the boundary condition will be set before been simulate in Fluent based on the research papers experimental data. Finally results has been examined in CFD-POST. Parameter that had been used was the same parameter of experimental at constant mass flow rate of hot water and varies with mass flow rate at 50,60,70 & 80 LPM of cold water. Thus, this report presents the simulation of heat transfer & pressure drop in Helixchanger model with different baffle inclination as 20, 25, 30 & 40 degree, which gives insight of all parameters affect on Helixchanger design & it also suggests the optimized helix angle which gives better heat transfer with minimum pressure drop.
Performance Analysis of Wireless Single Input Multiple Output Systems ( SIMO ) in Correlated Weibull Fading Channels

In this dissertation the statistical characteristics of the trivariate and quadrivariate Weibull fading distribution with arbitrary correlation, non-identical fading parameters and average powers are analytically studied. Novel expressions for important joint statistics are derived using the Weibull power transformation. These expressions are used to evaluate the performance of selection combining (SC) and maximal ratio combining (MRC) diversity receivers in the presence of such fading channels. Multi-branch diversity, arbitrary correlation, Weibull fading.
Improving the admissibility of flows with bounded arrivals and bounded delay requirements in rate-controlled packet networks

This paper deals with the admission of flows with bounded delay and bounded arrivals in a rate-controlled network (more precisely, a network with nodes using rate-controlled service disciplines with the earliest deadline first as the scheduling algorithm). It focuses on an important function of flow admission that has a straight impact on flow admissibility, more precisely, choosing the traffic envelope functions of the rate-controllers traversed by a flow. We present in this paper a method for choosing these envelopes which compared to previous work improves flow admissibility. Then, we show its efficiency through an example.
Using Mixtures of Experts on the GlucoWatch ( R ) Biographer

Glucose monitoring helps diabetic patients manage their blood glucose levels. Diabetics who carefully control their blood glucose levels can signi cantly reduce the number of long-term complications in diabetes [3]. Presently, diabetics estimate their blood glucose level by obtaining a small amount of blood with a nger stick, followed by external analysis of this blood sample for glucose content; the external analysis of the blood sample is performed by devices such as the HemoCue (R) clinical analyzer (HemoCue, AB, Sweden). The nger stick method is accurate, but it is also painful and inconvenient, particularly when the patient must determine blood glucose levels multiple times per day. In addition, the irregular timing of the nger stick method may result in an increased incidence of hypoglycemia [3]. Continuous noninvasive measurement of glucose is expected to reduce the long-term complications of diabetes, while minimizing hypoglycemia and inconvenience.
Age-dependent Homeostatic Plasticity of GABAergic Signaling in Developing Retinal Networks

Developing retinal ganglion cells fire in correlated spontaneous bursts, resulting in propagating waves with robust spatiotemporal features preserved across development and species. Here we investigate the effects of homeostatic adaptation on the circuits controlling retinal waves. Mouse retinal waves were recorded in vitro for up to 35 h with a multielectrode array in presence of the GABAA antagonist bicuculline, allowing us to obtain a precise, time-resolved characterization of homeostatic effects in this preparation. Experiments were performed at P4–P6, when GABAA signaling is depolarizing in ganglion cells, and at P7–P10, when GABAA signaling is hyperpolarizing. At all ages, bicuculline initially increased the wave sizes and other activity metrics. At P5–P6, wave sizes decreased toward control levels within a few hours while firing remained strong, but this ability to compensate disappeared entirely from P7 onwards. This demonstrates that homeostatic control of spontaneous retinal activity maintains specific network dynamic properties in an age-dependent manner, and suggests that the underlying mechanism is linked to GABAA signaling.
Defining Object-Process Methodology in Web Ontology Language for Semantic Mediation

Model-Based Systems Engineering (MBSE) is gradually becoming an acceptable good practice, especially for large-scale complex systems. The variety of modeling languages allows detailed representation of domain-specific knowledge of different components and aspects of a system. Semantic Web concepts provide opportunities for easier and more efficient collaboration between design and verification teams using different modeling tools. IBM Semantic Mediation Container (SMC) is a tool interoperability platform, allowing mediation and synchronization among models in different languages based on their ontologies. We propose integrating into SMC the ability to translate Object-Process Methodology (OPM), the emerging ISO 19450 Standard, which provides a holistic view of the system's function, structure, and behavior. In this paper we describe the first integration stage - defining the OPM ontology in a way that conforms to Semantic Web specifications. We discuss different approaches of element representation and validate the ontology by round-trip transformation of OPM models from their visual representation to Resource Description Framework (RDF) and back.
A parallel mechanism used on human hip joint power assist

In this paper, a 3-DOF parallel mechanism which is wearable for human hip joint power assist is proposed. Different from the conventional power assist system, the proposed wearable parallel mechanism is formed by both mechanical links/joints and human bones/joints. Considering the anatomical mechanism of human hip joint, the 3-DOF wearable system consists of two connected modules, the 3-DOF hip joint and 6-DOF parallel mechanism. Based on the analysis the direct kinematic Jacobian of the parallel mechanism, such a bio-mechanism design makes the assist system always kinematically adapt to human hip joint anatomical structure. It could be used for human thigh movement assisting, rehabilitation and movement information acquiring.
Combining Speech Enhancement and Discriminative Feature Extraction for Robust Speaker Recognition

It is well known that discriminative feature and effective robust processing are two key techniques. This paper presents a new strategy which combining speech enhancement and discriminative feature in order to overcome the acoustics mismatch between training and testing data in the noise environment. On the one hand, a comparison results in two noise environments indicate that the recognition rates based on DFCC are averagely higher 6.11% (White noise) and 8%(Factory noise) respectively than MFCC, which confirmed that the effectiveness of discriminative and robustness of DFCC. On the other hand, when combining speech enhancement and discriminative feature, the improvement based on SMFCC is limited, only 0.93%, 1.87%, while the performance has been improved by 2.54%, 2.31% based on SDFCC.
Diagnosis of left-ventricular non-compaction in patients with left-ventricular systolic dysfunction: time for a reappraisal of diagnostic criteria?

AIMS Left-ventricular non-compaction (LVNC) is characterized by excessive and prominent left-ventricular (LV) trabeculations and may be associated with systolic dysfunction in advanced disease. We sought to determine the proportion of patients fulfilling LVNC criteria in an adult population referred to a heart failure clinic using current diagnostic criteria. METHODS AND RESULTS One hundred and ninety-nine patients [age 63.5 +/- 15.9 years, 124 (62.3%) males] with LV systolic impairment were studied. All underwent clinical examination, electrocardiography, and 2-D echocardiography. The number of patients fulfilling diagnostic criteria for LVNC was retrospectively determined using three published definitions. Results were compared with 60 prospectively evaluated normal controls (age 35.7 +/- 13.5 years; 31 males, 30 blacks). Forty-seven patients (23.6%) fulfilled one or more echocardiographic definitions for LVNC. Patients fulfilling LVNC criteria were younger (P = 0.002), had larger LV end-diastolic dimension (P < 0.001), and smaller left atrial size (P = 0.01). LVNC was more common in black individuals (35.5 vs. 16.2%, P = 0.003). Five controls (four blacks) fulfilled one or more LVNC criteria. CONCLUSIONS This study demonstrates an unexpectedly high percentage of patients with heart failure fulfilling current echocardiographic criteria for LVNC. This might be explained by a hitherto underestimated cause of heart failure, but the comparison with controls suggests that current diagnostic criteria are too sensitive, particularly in black individuals.
An instantaneous-frequency-based pitch extraction method for high-quality speech transformation: revised TEMPO in the STRAIGHT-suite

A new source information extraction algorithm is proposed to provide a reliable source signal for a high-quality speech analysis, modification, and transformation system called STRAIGHT (Speech Transformation and Representation based on Adaptive Interpolation of weiGHTed spectrogram). The proposed method makes use of instantaneous frequencies in harmonic components based on their reliability. A performance evaluation is conducted using a simultaneous EGG (Electroglottograph) recording as the reference signal. The error variance for F0 extraction using the proposed algorithm is shown to be about 1/3 that of the previous F0 extraction method used in STRAIGHT, although the previous algorithm is still competitive with conventional F0 extraction methods.
The adaptation of test-driven software processes to industrial automation engineering

Software components provide an increasing part of added value in automation systems and become more complex to construct and test. Test-driven development (TDD) of software systems has been successfully used for agile development of business software systems. Test cases guide the system implementation and can be executed automatically after software changes (continuous integration & build strategy). However, TDD processes need to be adapted to control automation systems engineering, where real-world systems are challenging to model and to test automatically. In this paper we introduce an adapted TDD process from the business software engineering domain to industrial automation engineering. We identify a set of UML models that enable the systematic derivation of test cases. Based on an initial empirical study we evaluate the adapted TDD process based on an industrial use case to identify strength and limitation of this approach. Major results of the study were that UML models enabled effective test case derivation in the study context.
Flexible structural comparison allowing hinge‐bending, swiveling motions

We present an efficient method for flexible comparison of protein structures, allowing swiveling motions. In all currently available methodologies developed and applied to the comparisons of protein structures, the molecules are considered to be rigid objects. The method described here extends and generalizes current approaches to searches for structural similarity between molecules by viewing proteins as objects consisting of rigid parts connected by rotary joints. During the matching, the rigid subparts are allowed to be rotated with respect to each other around swiveling points in one of the molecules. This technique straightforwardly detects structural motifs having hinge(s) between their domains. Whereas other existing methods detect hinge‐bent motifs by initially finding the matching rigid parts and subsequently merging these together, our method automatically detects recurring substructures, allowing full 3 dimensional rotations about their swiveling points. Yet the method is extremely fast, avoiding the time‐consuming full conformational space search. Comparison of two protein structures, without a predefinition of the motif, takes only seconds to one minute on a workstation per hinge. Hence, the molecule can be scanned for many potential hinge sites, allowing practically all Cα atoms to be tried as swiveling points. This algorithm provides a highly efficient, fully automated tool. Its complexity is only O(n2), where n is the number of Cα atoms in the compared molecules. As in our previous methodologies, the matching is independent of the order of the amino acids in the polypeptide chain. Here we illustrate the performance of this highly powerful tool on a large number of proteins exhibiting hinge‐bending domain movements. Despite the motions, known hinge‐bent domains/motifs which have been assembled and classified, are correctly identified. Additional matches are detected as well. This approach has been motivated by a technique for model based recognition of articulated objects originating in computer vision and robotics. Proteins 1999;34:232–254. Published 1999 Wiley‐Liss, Inc.
Threat- and Risk-Analysis During Early Security Requirements Engineering

We present a threat and risk-driven methodology to security requirements engineering. Our approach has a strong focus on gathering, modeling, and analyzing the environment in which a secure ICT-system to be built is located. The knowledge about the environment comprises threat and risk models. This security-relevant knowledge is used to assess the adequacy of security mechanisms, which are selected to establish security requirements.
Impact of the Genome Wide Supported NRGN Gene on Anterior Cingulate Morphology in Schizophrenia

Background The rs12807809 single-nucleotide polymorphism in NRGN is a genetic risk variant with genome-wide significance for schizophrenia. The frequency of the T allele of rs12807809 is higher in individuals with schizophrenia than in those without the disorder. Reduced immunoreactivity of NRGN, which is expressed exclusively in the brain, has been observed in Brodmann areas (BA) 9 and 32 of the prefrontal cortex in postmortem brains from patients with schizophrenia compared with those in controls. Methods Genotype effects of rs12807809 were investigated on gray matter (GM) and white matter (WM) volumes using magnetic resonance imaging (MRI) with a voxel-based morphometry (VBM) technique in a sample of 99 Japanese patients with schizophrenia and 263 healthy controls. Results Although significant genotype-diagnosis interaction either on GM or WM volume was not observed, there was a trend of genotype-diagnosis interaction on GM volume in the left anterior cingulate cortex (ACC). Thus, the effects of NRGN genotype on GM volume of patients with schizophrenia and healthy controls were separately investigated. In patients with schizophrenia, carriers of the risk T allele had a smaller GM volume in the left ACC (BA32) than did carriers of the non-risk C allele. Significant genotype effect on other regions of the GM or WM was not observed for either the patients or controls. Conclusions Our findings suggest that the genome-wide associated genetic risk variant in the NRGN gene may be related to a small GM volume in the ACC in the left hemisphere in patients with schizophrenia.
Chouqet fuzzy integral based condition monitoring and analysis approach using simulation framework for rail faults

Today, railway systems are one of the most preferred means of transportation worldwide. Some faults may occur on railway tracks due to several reasons and such faults may cause accidents. For this reason, railway tracks should be periodically inspected. In this study, a study was performed which was aimed to locate possible faults such as cracks, holes and wear on rail surfaces fast and with high accuracy levels in accordance with real systems. The study is made in two stages and distance values read on laser cameras constitute the input data of the system. Rail profiles marked as working and out-of-order are presented as input data of the system and a random forest is created for learning after a pretreatment on the data, four different feature extraction methods are obtained with attribute. In test phase, a second attribute is obtained via feature extraction methods, classified and produced after diagnosis. General accuracy rates of the system are increased with fuzzy integral method and a system which can work in real time and with high accuracy rates on railways with a physical tester was proposed.
The Postnatal Accumulation of Junctional E-Cadherin Is Inversely Correlated with the Capacity for Supporting Cells to Convert Directly into Sensory Hair Cells in Mammalian Balance Organs

Mammals experience permanent impairments from hair cell (HC) losses, but birds and other non-mammals quickly recover hearing and balance senses after supporting cells (SCs) give rise to replacement HCs. Avian HC epithelia express little or no E-cadherin, and differences in the thickness of F-actin belts at SC junctions strongly correlate with different species' capacities for HC replacement, so we investigated junctional cadherins in human and murine ears. We found strong E-cadherin expression at SC–SC junctions that increases more than sixfold postnatally in mice. When we cultured utricles from young mice with γ-secretase inhibitors (GSIs), striolar SCs completely internalized their E-cadherin, without affecting N-cadherin. Hes and Hey expression also decreased and the SCs began to express Atoh1. After 48 h, those SCs expressed myosins VI and VIIA, and by 72 h, they developed hair bundles. However, some scattered striolar SCs retained E-cadherin and the SC phenotype. In extrastriolar regions, the vast majority of SCs also retained E-cadherin and failed to convert into HCs even after long GSI treatments. Microscopic measurements revealed that the junctions between extrastriolar SCs were more developed than those between striolar SCs. In GSI-treated utricles as old as P12, differentiated striolar SCs converted into HCs, but such responses declined with age and ceased by P16. Thus, temporal and spatial differences in postnatal SC-to-HC phenotype conversion capacity are linked to the structural attributes of E-cadherin containing SC junctions in mammals, which differ substantially from their counterparts in non-mammalian vertebrates that readily recover from hearing and balance deficits through hair cell regeneration.