Miracle-dz/UniFAR-FTUs huggingface dataset:
Demonstrating and Learning Multimodal Socio-communicative Behaviors for HRI: Building Interactive Models from Immersive Teleoperation Data

The main aim of artificial-intelligence (AI) is to provide machines with intelligence. Machine learning is now widely used to extract such intelligence from data. Collecting and modeling mul-timodal interactive data is thus a major issue for fostering AI for HRI. We first discuss the egg-and-chicken problem of collecting ground-truth HRI data without actually disposing of robots with mature social skills. Particular issues raised by the current multimodal end-to-end mapping frameworks are also commented. We then analyze the benefits and challenges raised by using immersive tele-operation for endowing humanoid robots with such skills. We finally argue for establishing stronger gateways between HRI and Augmented/Virtual Reality research domains.
The cohomological and the resource-theoretic perspective on quantum contextuality: common ground through the contextual fraction

We unify the resource-theoretic and the cohomological perspective on quantum contextuality. At the center of this unification stands the notion of the contextual fraction. For both symmetry and parity based contextuality proofs, we establish cohomological invariants which are witnesses of state-dependent contextuality. We provide two results invoking the contextual fraction, namely (i) refinements of logical contextuality inequalities, and (ii) upper bounds on the classical cost of Boolean function evaluation, given the contextual fraction of the corresponding measurement-based quantum computation.
Semantic Labeling of High Resolution Aerial Imagery and LiDAR Data with Fine Segmentation Network

In this paper, a novel convolutional neural network (CNN)-based architecture, named fine segmentation network (FSN), is proposed for semantic segmentation of high resolution aerial images and light detection and ranging (LiDAR) data. The proposed architecture follows the encoder–decoder paradigm and the multi-sensor fusion is accomplished in the feature-level using multi-layer perceptron (MLP). The encoder consists of two parts: the main encoder based on the convolutional layers of Vgg-16 network for color-infrared images and a lightweight branch for LiDAR data. In the decoder stage, to adaptively upscale the coarse outputs from encoder, the Sub-Pixel convolution layers replace the transposed convolutional layers or other common up-sampling layers. Based on this design, the features from different stages and sensors are integrated for a MLP-based high-level learning. In the training phase, transfer learning is employed to infer the features learned from generic dataset to remote sensing data. The proposed FSN is evaluated by using the International Society for Photogrammetry and Remote Sensing (ISPRS) Potsdam and Vaihingen 2D Semantic Labeling datasets. Experimental results demonstrate that the proposed framework can bring considerable improvement to other related networks.
Disease diagnosis using meta-learning framework

Data mining techniques have been extensively used in medical decision support systems for the purpose of prediction and to correctly identify severaldiseases correctly. These techniques are applicable for designing health related systems because of their capability to find outthe concealed patterns and associations in health related data. The main objective of this paper is to develop and implement a framework which provides considerable classification results for users who have no prior data mining knowledge. We also propose a proper prediction model to improve the reliability of medical assessment and medications for ailments. We analyzed different medical records for certain disease and based on the hypothesis made on the training dataset, applied it on the test dataset and achieved disease with a good accuracy. We focus on reducing the dependency of the system on user input, and offer the capability of a guided search for a proper learning algorithm through performance metrics
Bell-CHSH violation under global unitary operations: Necessary and sufficient conditions

The relation between Bell-CHSH violation and factorization of Hilbert space is considered here. That is, a state which is local in the sense of the Bell-CHSH inequality under a certain factorization of the underlying Hilbert space can be Bell-CHSH nonlocal under a different factorization. While this question has been addressed with respect to separability, the relation of the factorization with Bell-CHSH violation has remained hitherto unexplored. We find here that there is a set containing density matrices, which do not exhibit Bell-CHSH violation under any factorization of the Hilbert space brought about by global unitary operations. Using the Cartan decomposition of [Formula: see text], we characterize the set in terms of a necessary and sufficient criterion based on the spectrum of density matrices. Sufficient conditions are obtained to characterize such density matrices based on their bloch representations. For some classes of density matrices, necessary and sufficient conditions are derived in terms of bloch parameters. Furthermore, an estimation of the volume of such density matrices is achieved in terms of purity. The criterion is applied to some well-known class of states in two qubits. Since both local filtering and global unitary operations influence the Bell-CHSH violation of a state, a comparative study is made between the two operations. The inequivalence of the two operations (in terms of increasing Bell-CHSH violation) is exemplified through their action on some classes of states.
Direct numerical simulation of particle sedimentation in a Bingham fluid

© 2018 American Physical Society. The settling efficiency, and stability with respect to settling, of a dilute suspension of infinite circular cylinders in a quiescent viscoplastic fluid is examined by means of direct numerical simulations with varying solid volume fraction, φ, and yield number, Y. For Y sufficiently large we find higher settling efficiency for increasing φ, similar to what is found in shear-thinning fluids and opposite to what is found in Newtonian fluids. The critical yield number at which the suspension is held stationary in the carrier fluid is found to increase monotonically with φ, while the transition to settling is found to be diffuse: in the same suspension, particle clusters may settle while more isolated particles remain arrested. In this regime, complex flow features are observed in the sedimenting suspension, including the mobilization of lone particles by nearby sedimentation clusters. Understanding this regime, and the transition to a fully arrested state, is relevant to many industrial and natural problems involving the sedimentation of viscoplastic suspensions under quiescent flow conditions.
Empirical Evaluation of Modified Agile Models

Empirical evaluation is one of the widely accepted validation method in the domain of software engineering which investigates the proposed technique via practical experience and reflects its benefits and limitations. Due to various advantages, agile models have been taking over the conventional software development methodologies since last two decades. However besides the benefits, various limitations have been noticed as well by the researchers and software industry in agile family. To achieve the maximum benefits it is vital to fix the limitations by customizing the development structure of agile models. This paper deals with the empirical analysis of modified agile models called Simplified Extreme Programing (SXP) and Simplified Feature Driven Development (SFDD), which are the modified forms of Extreme Programing (XP) and Feature Driven Development (FDD). SXP was presented to eliminate the issues of conventional XP such as, lack of documentation, poor architectural structure and less focus on design. SFDD was proposed to take care of reported issues in FDD such as explicit dependency on experienced staff, little or no guidance for requirement gathering, rigid nature to accommodate requirement changes and heavy development structure. This study evaluates SXP and SFDD through implementing client oriented projects and discusses the results with empirical analysis.
Heavy metal distribution and groundwater quality assessment for a coastal area on a Chinese island

Chongming Island is located in the lower Yangtze Estuary in China. Due to the Leachate from a refuse landfill and the hydrodynamics of the Yangtze Estuary, the groundwater environment is particularly complicated on Chongming Island. Field observations were carried out around the landfill disposal site. The groundwater table, temperature, pH, salinity, and dissolved oxygen were measured in the field by portable equipment, and 192 water samples were collected at eight groundwater sites and one surface water site. Through laboratory analysis we found the highest measured concentration of Cr to be 54.07 μg/L, and the measured concentration of Zn was in the range of 8 μg/L to more than 200 μg/L, which were both higher than their background values. Strong correlations were found between the heavy metal (Cr, Ni, Cu) concentrations and physico-chemical characteristics (salinity and pH), which indicated that both the landfill and the tides played an important role in the distribution of heavy metal concentrations. Both the HPI and PoS Indices were greater than their critical values near the disposal site, indicating groundwater pollution by heavy metals. We show that Cr and Ni are the major heavy metals causing groundwater contamination in the study region.
Creating Broadband Circular Polarised Light by Reflection

Introduction In high-powered laser-plasma experiments it is commonly desired to shift the laser’s polarisation from linear to circular. An example application of this is proton acceleration via radiation pressure acceleration (RPA) which is predicted to become dominate at lower intensities with circular polarisation compared to linear [1]. Conventionally, a transmissive mica waveplate would be inserted within the beam-line to alter the polarisation state. This method unfortunately becomes impractical for lasers among the petawatt power output range, such as the Vulcan Laser (and especially the Vulcan 10PW upgrade) due to the necessary thickness of such plates (~μm) in comparison to the beam width (~m. Furthermore, upon transmission through an optic, the short pulses’ large bandwidth makes them susceptible to group velocity dispersion (GVD) resulting in pulse broadening. Although reflective polarisers have been available before [2], here we present work on a broadband circular polariser between 800nm and 1000nm.
Einstein-Podolsky-Rosen entanglement between separated atomic ensembles

Einstein-Podolsky-Rosen (EPR) entangled quantum state is of special importance not only for fundamental researches in quantum mechanics, but also for information processing in quantum information field. Establishing EPR entanglement between two memory systems, such as atomic ensembles, Nitrogen-vacancy centers, rare-earth-ion-doped solids, etc, is very important for realizing quantum communication, quantum computation and quantum imaging. So far, there have been few reports on the realization of EPR entanglement in true position and momentum bases between two memory systems. Here we experimentally establish EPR entanglement between two separated atomic ensembles by using quantum storage, clearly proving the existence of EPR entanglement with position and momentum entities through demonstrating EPR-paradox inequality with the aid of quantum ghost imaging and ghost interference experiments. This work is very promising for realizing spatial-multimode based quantum communications and quantum imaging.
Hydrodynamic patterns associated with echelon formation swimming by feeding bowhead whales (Balaena mysticetus)

FRANK E. FISH, Department of Biology, West Chester University, West Chester, Pennsylvania 19380, U.S.A. ; KIMBERLY T. GOETZ, Department of Ecology and Evolutionary Biology, University of California, Long Marine Lab, 100 Shaffer Road, Santa Cruz, California 95060, U.S.A. ; DAVID J. RUGH, 17416-95th Avenue NE, Bothell, Washington 98011, U.S.A. ; LINDA VATE BRATTSTROM, National Marine Mammal Laboratory, Alaska Fisheries Science Center, NMFS, NOAA, 7600 Sand Point Way, NE, Seattle, Washington 981156349, U.S.A.
OH + emission from cometary knots in planetary nebulae

We model the molecular emission from cometary knots in planetary nebulae (PNe) using a combination of photoionization and photodissociation region (PDR) codes, for a range of central star properties and gas densities. Without the inclusion of ionizing extreme ultraviolet (EUV) radiation, our models require central star temperatures $T_*$ to be near the upper limit of the range investigated in order to match observed H$_2$ and OH$^+$ surface brightnesses consistent with observations - with the addition of EUV flux, our models reproduce observed OH$^+$ surface brightnesses for $T_* \ge 100 \, {\rm kK}$. For $T_* < 80 \, {\rm kK}$, the predicted OH$^+$ surface brightness is much lower, consistent with the non-detection of this molecule in PNe with such central star temperatures. Our predicted level of H$_2$ emission is somewhat weaker than commonly observed in PNe, which may be resolved by the inclusion of shock heating or fluorescence due to UV photons. Some of our models also predict ArH$^+$ and HeH$^+$ rotational line emission above detection thresholds, despite neither molecule having been detected in PNe, although the inclusion of photodissociation by EUV photons, which is neglected by our models, would be expected to reduce their detectability.
Differential Topology and Geometry of Smooth Embedded Surfaces: Selected Topics

The understanding of surfaces embedded in E3 requires local and global concepts, which are respectively evocative of differential geometry and differential topology. While the local theory has been classical for decades, global objects such as the foliations defined by the lines of curvature, or the medial axis still pose challenging mathematical problems. This duality is also tangible from a practical perspective, since algorithms manipulating sampled smooth surfaces (meshes or point clouds) are more developed in the local than the global category. As a prerequisite for those interested in the development of algorithms for the manipulation of surfaces, we propose a concise overview of core concepts from differential topology applied to smooth embedded surfaces. We first recall the classification of umbilics, of curvature lines, and describe the corresponding stable foliations. Next, fundamentals of contact and singularity theory are recalled, together with the classification of points induced by the contact of the surface with a sphere. This classification is further used to define ridges and their properties, and to recall the stratification properties of the medial axis. Finally, properties of the medial axis are used to present sufficient conditions ensuring that two embedded surfaces are ambient isotopic. From a theoretical perspective, we expect this survey to ease the access to intricate notions scattered over several sources. From a practical standpoint, we hope it will be useful for those interested in certified approximations of smooth surfaces.
Time-dependent lift and drag on a rigid body in a viscous steady linear flow

We compute the leading-order inertial corrections to the instantaneous force acting on a rigid body moving with a time-dependent slip velocity in a linear flow field, assuming that the square root of the Reynolds number based on the fluid-velocity gradient is much larger than the Reynolds number based on the slip velocity between the body and the fluid. As a first step towards applications to dilute sheared suspensions and turbulent particle-laden flows, we seek a formulation allowing this force to be determined for an arbitrarily shaped body moving in a general linear flow. We express the equations governing the flow disturbance in a non-orthogonal coordinate system moving with the undisturbed flow and solve the problem using matched asymptotic expansions. The use of the co-moving coordinates enables the leading-order inertial corrections to the force to be obtained at any time in an arbitrary linear flow field. We then specialize this approach to compute the time-dependent force components for a sphere moving in three canonical flows: solid-body rotation, planar elongation, and uniform shear. We discuss the behaviour and physical origin of the different force components in the short-time and quasi-steady limits. Last, we illustrate the influence of time-dependent and quasi-steady inertial effects by examining the sedimentation of prolate and oblate spheroids in a pure shear flow.
Efficacy and Safety of Low Target Pressure Trabeculectomy: 2-Year Clinical Results

Purpose: To compare the success and complication rates of low target pressure trabeculectomy (LTT) and conventional trabeculectomy (CT). Methods: A retrospective study was conducted with consecutive patients undergoing trabeculectomy. Twelve eyes of 12 patients underwent LTT, and 17 eyes of 17 patients underwent CT. Surgical success was defined as meeting each target intraocular pressure (IOP) without additional medication or further glaucoma surgery. A Kaplan-Meier survival analysis was used to estimate survival rate. Incidences of surgical complications were also assessed. Results: The median postoperative IOP 2 years after surgery were 10.0 mmHg (interquartile range [IQR] 8.5 - 12.0 mmHg) in the LTT group and 16.0 mmHg (IQR, 14.0 - 18.5 mmHg) in the CT group (P = 0.000). Estimated survival rates for patients who underwent the two types of trabeculectomy were significantly different with all IOP criteria of 10, 12 and 14 mmHg (P
Simulating impacts of real-world wind farms on land surface temperature using the WRF Model: Validation with observations

AbstractThis study simulates the impacts of real-world wind farms on land surface temperature (LST) using the Weather Research and Forecasting (WRF) Model driven by realistic initial and boundary conditions. The simulated wind farm impacts are compared with the observations from the Moderate Resolution Imaging Spectroradiometer (MODIS) and the first Wind Forecast Improvement Project (WFIP) field campaign. Simulations are performed over west-central Texas for the month of July throughout 7 years (2003–04 and 2010–14). Two groups of experiments are conducted: 1) direct validations of the simulated LST changes between the preturbine period (2003–04) and postturbine period (2010–14) validated against the MODIS observations; and 2) a model sensitivity test of LST to the wind turbine parameterization by examining LST differences with and without the wind turbines for the postturbine period. Overall, the WRF Model is moderately successful at reproducing the observed spatiotemporal variations of the background LS.
An Efficient Resource Allocation Using Load Matrix Concept for Cellular System

Efficient radio resource allocation in cellular systems envisages the assignment of the number of subcarriers and relative transmission format on the basis of link quality. Traditional schemes have approached this problem mainly focusing on resources within a cell and to large extent ignoring effects of multi-cell architecture. In this paper we propose an optimum centralized radio resource allocator for the multi-cell scenario of cellular system which allows to highly out-performing iterative decentralized allocation strategies based on local optimization criteria. Simulation results show significant improvement in the resource utilization and overall network performance. Results show that maintaining cell interference within a margin instead of a hard target can significantly improve resource utilization.
Path integral action of a particle in κ-Minkowski spacetime

In this letter, we derive the path integral action of a particle in κ-Minkowski spacetime. The equation of motion for an arbitrary potential due to the κ-deformation of the Minkowski spacetime is then obtained. The action contains a dissipative term which owes its origin to the κ-Minkowski deformation parameter a. We take the example of the harmonic oscillator and obtain the frequency of oscillations in the path integral approach as well as the operator approach up to the first order in the deformation parameter a. For studying this, we start with the κ-deformed dispersion relation which is invariant under the undeformed κ-Poincaré algebra and take the non-relativistic limit of the κ-deformed dispersion relation to find the Hamiltonian. The propagator for the free particle in the κ-Minkowski spacetime is also computed explicitly. In the limit, , the commutative results are recovered.
The Impact of Tort Reform on Private Health Insurance Coverage, February 2010

This study evaluates tort reform's impact on private health insurance coverage. Tort reform may reduce costly damage awards and defensive medicine. On the other hand, tort reform may increase health care costs by reducing doctors' caretaking or increasing questionable treatments. Reducing health care costs should increase health insurance coverage rates, while cost increases should decrease coverage rates. We find that between 1981 and 2007 damage caps, collateral source reform, and joint-and-several liability reform increased health insurance coverage among price-sensitive groups between one-half and one percentage points each. We conclude that tort reform reduces health care costs, at least for price-sensitive groups. Copyright 2010, Oxford University Press.
The RiceWrist: A Distal Upper Extremity Rehabilitation Robot for Stroke Therapy

This paper presents the design and kinematics of a four degree-of-freedom upper extremity rehabilitation robot f or stroke therapy, to be used in conjunction with the Mirror Image Move ment Enabler (MIME) system. TheRiceWrist is intended to provide robotic therapy via force-feedback during range-of-m otion tasks. The exoskeleton device accommodates forearm supina tion and pronation, wrist flexion and extension, and radial a nd ulnar deviation in a compact design with low friction and bac klash. Joint range of motion and torque output of the electric motor driven device is matched to human capabilities. The pa per describes the design of the device, along with three cont rol modes that allow for various methods of interaction between the patient and the robotic device. Passive, triggered, and act iveconstrained modes, such as those developed for MIME, allow f or therapist control of therapy protocols based on patient cap ability and progress. Also presented is the graphical user interfac e for therapist control of the interactions modes of theRiceWrist, basic experimental protocol, and preliminary experimental resu lts.