Miracle-dz/UniFAR-FTUs huggingface dataset:
New evidence for the Palaeolithic in Attica, Greece

Despite Greece’s key geographic position between southeast Europe and southwest Asia, and its potential for documenting hominin dispersals, Lower and Middle Palaeolithic sites are rare. This suggests the need for research to identify deposits that may contain Palaeolithic artefacts. Here we describe 165 quartz and quartzite artefacts with Palaeolithic characteristics (based on technical and morphotypological definitions) from a private collection that was made from erosional lag deposits on the southeastern slopes of Mt. Pendeli and the northern edge of the Spata polje (a large karstic depression filled with terra rossas) in northeast Attica. Artefacts of the same type occur in the region of Ano Souli, another karstic depression. These karstic depressions are of interest because they resemble artefact-bearing deposits found at similar features such as Kokkinopilos in Epirus that have provided datable geologic contexts for Lower and Middle Palaeolithic artefacts. Our study suggests that Attica was frequented by hominins in the Lower and Middle Palaeolithic and that Pleistocene deposits in karstic depressions in Attica may preserve datable contexts for documenting early human activity. The lithic collection described here provides a glimpse of the potential of the region, and we recommend continued archaeological efforts in Attica to investigate the likelihood for buried Palaeolithic sites.
Accurate and real-time depth video acquisition using Kinect–stereo camera fusion

Abstract. This paper presents a Kinect–stereo camera fusion system that significantly improves the accuracy of depth map acquisition. The typical Kinect depth map suffers from missing depth values and errors, resulting from a single Kinect input. To ameliorate such problems, the proposed system couples a Kinect with a stereo RGB camera to provide an additional disparity map. Kinect depth map and the disparity map are efficiently fused in real time by exploiting a spatiotemporal Markov random field framework on a graphics processing unit. An efficient temporal data cost is proposed to maintain the temporal coherency between frames. We demonstrate the performance of the proposed system on challenging real-world examples. Experimental results confirm that the proposed system is robust and accurate in depth video acquisition.
A Modified Model of Squirrel Cage Induction Machine Under General Rotor Misalignment Fault

A great deal of researches have so far been conducted on the analysis of eccentricity in induction machines. However, they mostly consider radial non-uniformity and neglect non-uniformity in the axial direction, but in practice, the axial non-uniformity due to rotor misalignment faults is quite common. This paper presents a modifled model of a three-phase squirrel cage induction machine under difierent rotor misalignment conditions. For this purpose, general expressions for air gap and mean radius of induction machine, considering axial non-uniformity, have been developed. The proposed model is able to calculate the time varying inductances versus rotor angle for three-phase squirrel cage induction machines under general rotor misalignment, including static, dynamic and mixed rotor misalignment in the frame of a single program. Simulation results were verifled by the experimental ones. The model presented by Tolyiat et al. (1) has been shown to be accurate for the time domain simulation of AC motors based on the basic geometry and winding layout of stator windings and rotor loops. Contrary to the classical d-q model, this theory can take into account all of the winding magnetomotive force space harmonics. An essential part of this theory is the calculation of machine inductances. These inductances are calculated using winding function and other equations within the theory. By this approach, all space harmonics are taken into account without any restriction concerning symmetry of stator or rotor windings. Hence, this model is widely used for the analysis of
Evaluating Dynamic Linking through the Query Process using the Licas Test Platform

A novel linking mechanism has been described previously [4] that can be used to autonomously link sources that provide related answers to queries executed over an information network. The test query platform has now been re-written resulting in essentially a new test platform using the same basic query mechanism, but with a slightly different algorithm. This paper describes recent test results on the same query test process that supports the original findings and also shows the effectiveness of the linking mechanism in a new set of test scenarios.
Learning Relational Structure for Temporal Relation Extraction

Recently there has been a lot of interest in using Statistical Relational Learning (SRL) models for Information Extraction (IE). One of the important IE tasks is extraction of temporal relations between events and time expressions (timex). SRL methods that use hand-written rules have been proposed for various IE tasks. In contrast, we propose an approach that employs structure learning in SRL to learn such rules. Although not required, our method can also incorporate expert advice either as features or initial theory to learn a more accurate model. We present preliminary results on the TempEval-2 task of classifying relations between events and timexes.
Wide context acoustic modeling in read vs. spontaneous speech

Context-dependent acoustic models have been applied in speech recognition research for many years, and have been shown to increase the recognition accuracy significantly. The most common approach is to use triphones. Several speech recognition groups have started investigating the use of larger phonetic context windows when building acoustic models. We discuss some of the computational problems arising from wide context modeling (polyphonic modeling) and present methods to cope with these problems. A two stage decision tree based polyphonic clustering approach is described which implements a more flexible parameter tying scheme. The new clustering approach gave us significant improvement across all tasks-WSJ, SWB, and Spontaneous Scheduling Task-and across all languages involved (German, Spanish, English). We report recognition results based on the JANUS speech recognition toolkit on two tasks comparing acoustic context phenomena in English read versus spontaneous speech. We used our WSJ 60K recognizer and the JANUS SWB 10K polyphonic recognizer.
Bayesian measures of model complexity and fit

Summary. We consider the problem of comparing complex hierarchical models in which the number of parameters is not clearly defined. Using an information theoretic argument we derive a measure pD for the effective number of parameters in a model as the difference between the posterior mean of the deviance and the deviance at the posterior means of the parameters of interest. In general pD approximately corresponds to the trace of the product of Fisher's information and the posterior covariance, which in normal models is the trace of the ‘hat’ matrix projecting observations onto fitted values. Its properties in exponential families are explored. The posterior mean deviance is suggested as a Bayesian measure of fit or adequacy, and the contributions of individual observations to the fit and complexity can give rise to a diagnostic plot of deviance residuals against leverages. Adding pD to the posterior mean deviance gives a deviance information criterion for comparing models, which is related to other information criteria and has an approximate decision theoretic justification. The procedure is illustrated in some examples, and comparisons are drawn with alternative Bayesian and classical proposals. Throughout it is emphasized that the quantities required are trivial to compute in a Markov chain Monte Carlo analysis.
POLLy: A Conversational System that uses a Shared Representation to Generate Action and Social Language

We present a demo of our conversational system POLLy (POliteness in Language Learning) which uses a common planning representation to generate actions to be performed by embodied agents in a virtual environment and to generate spoken utterances for dialogues about the steps involved in completing the task. In order to generate socially appropriate dialogue, Brown and Levinson’s theory of politeness is used to constrain the dialogue generation process.
THE STRUCTURE OF A CHYMOTRYPTIC PEPTIDE FROM PSEUDOMONAS CYTOCHROME C-551.

A micromethod involving the use of fluorescent derivatives of 1-dimethylaminonaphthalene-5-sulphonyl chloride (Gray & Hartley, 1963) has been used in a parallel study of the structure of peptide C8Pla (as defined by Ambler, 1963) of the Pseudomonas cytochrome c-551. The basis of the method was a modification of the phenyl isothiocyanate procedure for the removal of the N-terminal residue (Edman, 1950 a, b), followed by investigation of the free amino groups of the residual peptide The very high sensitivity of the fluorescent end-group reagent used enabled the subtractive procedure to be applied over six consecutive steps, commencing with approx. 0-02 timole of peptide. The partial sequence
Assessing Competitive Advantage Based on Customer Satisfaction and Customer Value

Few researchers conducted empirical study on assessing competitive advantage in previous studies. In this paper, we try to establish an evaluation model of competitive advantage based on customer satisfaction and customer value. Then we conducted a survey of 37 durables manufacturers and 9250 samples in China to calculate the model. The results show that customer value exerts significant effect on competitive advantage, and the differentiation is the main source of competitive advantage in China.
NLPR_KBP in TAC 2009 KBP Track: A Two-Stage Method to Entity Linking

This paper describes the NLPR Knowledge Base Population system (NLPR_KBP) for the TAC 2009 KBP track. Our system employs a two-stage entity linking method, where the two stage corresponds to the two main components of our system: The first component is a Multi-way Entity Candidate detector, which identifies all the possible entities in the knowledge base for an entity mention based on a variety of knowledge sources, such as the Wikipedia Anchor Dictionary, the Web, etc. The second component is an Entity Linker, which links an entity mention with the real world entity it refers to by measuring the similarity between them based on the Wikipedia semantic knowledge. The evaluation proves the validity of our system.
The kinesin Eg5 drives poleward microtubule flux in Xenopus laevis egg extract spindles

Although mitotic and meiotic spindles maintain a steady-state length during metaphase, their antiparallel microtubules slide toward spindle poles at a constant rate. This “poleward flux” of microtubules occurs in many organisms and may provide part of the force for chromosome segregation. We use quantitative image analysis to examine the role of the kinesin Eg5 in poleward flux in metaphase Xenopus laevis egg extract spindles. Pharmacological inhibition of Eg5 results in a dose–responsive slowing of flux, and biochemical depletion of Eg5 significantly decreases the flux rate. Our results suggest that ensembles of nonprocessive Eg5 motors drive flux in metaphase Xenopus extract spindles.
hStorage-DB: Heterogeneity-aware Data Management to Exploit the Full Capability of Hybrid Storage Systems

As storage systems become increasingly heterogeneous and complex, it adds burdens on DBAs, causing suboptimal performance even after a lot of human efforts have been made. In addition, existing monitoring-based storage management by access pattern detections has difficulties to handle workloads that are highly dynamic and concurrent. To achieve high performance by best utilizing heterogeneous storage devices, we have designed and implemented a heterogeneity-aware software framework for DBMS storage management called hStorage-DB, where semantic information that is critical for storage I/O is identified and passed to the storage manager. According to the collected semantic information, requests are classified into different types. Each type is assigned a proper QoS policy supported by the underlying storage system, so that every request will be served with a suitable storage device. With hStorage-DB, we can well utilize semantic information that cannot be detected through data access monitoring but is particularly important for a hybrid storage system. To show the effectiveness of hStorage-DB, we have implemented a system prototype that consists of an I/O request classification enabled DBMS, and a hybrid storage system that is organized into a two-level caching hierarchy. Our performance evaluation shows that hStorage-DB can automatically make proper decisions for data allocation in different storage devices and make substantial performance improvements in a cost-efficient way.
Miniaturized Wideband Circularly Polarized Triangular Patch Antennas based on Characteristic Mode Analysis

A miniaturized, wideband circularly polarized (CP) antenna based on coupled triangular patches is presented. Initially, two identical triangular patches with shorting pins are placed close to each other in a perpendicular orientation. Hence, a pair of orthogonal modes can be produced based on the coupled resonators. Under the characteristic mode analysis (CMA), it can be found that the 90∘ phase difference is achieved by modulating gap distance and shorting pins numbers. Both the shape of triangle patches and shorting pins contribute to the miniaturization. To further improve the AR bandwidth, a third patch is added to form a new mode. Thanks to the triple modes produced by the three patch elements, two AR minima are constructed to broaden the AR bandwidth. With this compact arrangement and shorting pins, a miniaturized wideband CP patch antenna with a 5.2% AR bandwidth is successfully implemented. The overall size of the antenna is merely 0. 34λ0×0. 33λ0×0. 046λ0.
Multi-Criteria Analysis of Selection Waste Management Development Strategy for Lubuk Binjai Landfill in Lubuk Linggau City

Environmental sustainability is an urgent priority in dealing with waste management problems in Indonesian cities, one of which is Lubuk Linggau City. In the 2012-2032 Lubuk Linggau City RTRW, waste management standards have been set using the Controlled Landfill or Sanitary Landfill method, but in reality the Lubuk Binjai landfillstill adopts the Open Dumping method. This waste management not in accordance with environmentally sound waste management methods, so it is necessary to develop a waste management strategy for the Binjai Landfill. This research aims to identify priority strategies that can be applied in developing landfill waste management in Lubuk Linggau City using the Analytical Hierarchy Process (AHP) method. Data collection was carried out by conducting interviews with key informants who were managers of the Lubuk Binjai waste disposal site. Determination of criteria and sub-criteria based on previous literature studies and determination of alternative strategies based on the Lubuk Linggau City RTRW for 2021-2032. From the results of the analysis, it shows that the prioritized strategy is the Strategy for Improving Waste Management Methods & Technology, with alternatives such as recycling processing, compost, and more sophisticated waste management technology such as controlled burning or anaerobic management. This is appropriate and crucial in overcoming problems at the Lubuk Binjai waste disposal site, that the Open Dumping method is still applied. It is hoped that the implementation of this strategy can bring positive and sustainable changes in waste management in Lubuk Linggau City.
Dynamie output feedback controller design for T-S fuzzy plants with actuator saturation using linear fractional transformation

In this paper, a systematic synthesis method for Takagi-Sugeno fuzzy dynamic output feedback controller is proposed for T-S fuzzy plants with actuator saturation. By using the deadzone function, both the T-S fuzzy plant with actuator saturation and the T-S fuzzy dynamic output feedback controller are transformed into the form of linear fractional transformation (LFT). Within the framework of LFT, the issue of stability as well as H performance is cast as a convex optimization problem which can be approached by solving a set of linear matrix inequalities. A numerical example is presented to illustrate the effectiveness of the proposed method.
Estimating age‐dependent costs and benefits of roots with contrasting life span: comparing apples and oranges

Summary • The relation between root age and root function is poorly understood, despite its importance to root longevity. • The effect of root age on respiration rates and 32P-uptake kinetics was determined for roots excavated from mature apple and citrus trees (median root life spans of 30 vs 300 d). To evaluate whether root longevity maximizes the efficiency of nutrient capture, daily and lifetime efficiencies were calculated by dividing simulated P-uptake benefits (solute transport model) by age-specific respiration costs. • We found that: respiration rates and P uptake capacity change with root age in a species-specific way; and soil characteristics that determine the rate of nutrient depletion in the rhizosphere are as important as changes in root physiology in determining the age at which a root reaches its maximum efficiency. • Further testing of the efficiency of nutrient capture as a predictor of root life span requires measurement of both soil properties and age-specific physiology of roots including their mycorrhizal fungi.
Recommending Code Changes for Automatic Backporting of Linux Device Drivers

Device drivers are essential components of any operating system (OS). They specify the communication protocol that allows the OS to interact with a device. However, drivers for new devices are usually created for a specific OS version. These drivers often need to be backported to the older versions to allow use of the new device. Backporting is often done manually, and is tedious and error prone. To alleviate this burden on developers, we propose an automatic recommendation system to guide the selection of backporting changes. Our approach analyzes the version history for cues to recommend candidate changes. We have performed an experiment on 100 Linux driver files and have shown that we can give a recommendation containing the correct backport for 68 of the drivers. For these 68 cases, 73.5%, 85.3%, and 88.2% of the correct recommendations are located in the Top-1, Top-2, and Top-5 positions of the recommendation lists respectively. The successful cases cover various kinds of changes including change of record access, deletion of function argument, change of a function name, change of constant, and change of if condition. Manual investigation of failed cases highlights limitations of our approach, including inability to infer complex changes, and unavailability of relevant cues in version history.
Integrated Observations of a Near-Surface Based Supercell Located Behind a Gust Front

On 11 April 2013, a long-lived supercell traveled from east-central Mississippi to north-central Alabama. After producing a large, long-tracked tornado near the Mississippi-Alabama border, this supercell merged with a quasi-linear convective system (QLCS) that had formed to the west. Even after the merger, the supercell maintain a distinct identity, producing four additional tornadoes across northwestern Alabama. The supercell was slowly weakening as it moved into the Tennessee Valley in north-central Alabama and the gust front of the QLCS propagated under the supercell mesocyclone. As the supercell moved into the Huntsville area, it passed over an array of in-situ and remote sensing platforms operated by the University of Alabama in Huntsville (UAH) and the National Weather Service (NWS). In this paper, these instruments are used to show that, despite being undercut by the QLCS gust front, the supercell still maintained near-surface inflow into the mesocyclone.
Scalability of Atomic Primitiveson Distributed Shared Memory Multiprocessors

Many hardware primitives have been proposed for synchronization and atomic memory update on shared-memory multiprocessors. In this paper, we focus on general-purpose primitives that have proven popular on small-scale bus-based machines, but have yet to become widely available on large-scale, distributed-memory machines. Specifically , we propose several alternative implementations of fetch and , compare and-swap, and load linked/store conditional. We then analyze the performance of these implementations for various data sharing patterns, in both real and synthetic applications. Our results indicate that good overall performance can be obtained by implementing compare and swap in a multiprocessor's cache controllers, and by providing an additional instruction to load an exclusive copy of a line.
Family Hostility and Depressive Symptoms in Middle-Aged Couples: Moderating Effect of Marital Integration

This study examined (a) the associations between family hostility (husband–wife marital hostility and child hostility) and middle-aged husbands’ and wives’ depressive symptoms over an 11-year time period and (b) the moderating influence of couples’ marital integration on these associations as measured by their joint activity. Higher order family-level latent constructs captured chronic husband–wife (marital) hostility using husbands’ and wives’ reports of chronic hostile interactions from 1990 to 1992, while a higher order latent construct of chronic child hostility toward parents was measured using parental reports of children’s hostile behaviors from 1990 to 1992. Structural equation modeling with data from 370 families depicted the longitudinal impact of family hostility on depressive symptoms of both husbands and wives in 2001 after accounting for earlier levels of depressive symptoms in 1991. Separate models were fit for couples with high and low levels of marital integration. For couples who experienced low levels of marital integration, chronic marital hostility and child hostility were related to depressive symptoms in husbands and wives. However, for those with high marital integration, these influences were largely diminished.