Miracle-dz/UniFAR-FTUs huggingface dataset:
Using combination recurrent neural network and fuzzy time series for data envelopment analysis (DEA)

Data envelopment analysis (DEA) is a mathematical programming based method to measure empirically the efficiency and productivity of operating units using multiple inputs to secure multiple outputs. Typically the inputs and the output are incommensurate. In large data set, discussion regarding the forecast and output calculating of decision making units to measure their efficiency is important task specially. In this paper, one new hybrid method of two old forecasting models (fuzzy time series and recurrent neural network), that about data envelopment analysis has been considered, is used in order to get more accurate results than using each of methods individually. In the end of paper, each of methods (fuzzy time series, recurrent neural network, and hybrid method) on large data set of decision making units has been used and the results have been compared to each other.
AN INVERSE PROBLEM FOR POINT INHOMOGENEITIES

We study quantum scattering theory off n point inhomogeneities (n 2 N) in three dimensions. The inhomogeneities (or generalized point inter- actions) positioned at {�1,. ,�n} � R 3 are modeled in terms of the n 2 (real) parameter family of self-adjoint extensions of � � C∞ 0 (R 3\{� 1,.,�n}) in L 2 (R 3 ). The Green's function, the scattering solutions and the scattering amplitude for this model are explicitly computed in terms of elementary functions. Moreover, using the connection between fixed energy quantum scattering and acoustical scattering, the following inverse spectral result in acoustics is proved: The knowledge of the scattered field on a plane outside these point-like inhomo- geneities, with all inhomogeneities located on one side of the plane, uniquely determines the positions and boundary conditions associated with them.
Network-based representation of biological data for enabling context-based mining In :

Biological phenomena are usually described by relational model of interactions and dependencies between different entities. Therefore, a network-based knowledge representation of biological knowledge seems to be an obvious choice. In this paper, we propose such a representation when integrating data from heterogeneous life science data sources, including information extracted from biomedical literature. We show that such a representation enables explanatory analysis in a context dependent manner. The context is enabled by a judicious assignment of weights on the quality dimensions. Analysis of clusters of nodes and links in the context of underlying biological questions may provide emergence of new concepts and understanding. Results are obtained with our megNet software, an integrative platform based on a multi-tier architecture using a native XML database.
Retinal ganglion cell death after different transient periods of pressure-induced ischemia and survival intervals. A quantitative in vivo study.

PURPOSE To quantitate in vivo retinal ganglion cell (RGC) survival after transient periods of pressure-induced ischemia of the rat retina and after different survival intervals. METHODS In adult rats, RGCs were labeled with fluorogold applied to their main targets in the brain. Seven days later, in several groups of rats, the left retinas were subjected to transient periods of ischemia of 30, 45, 60, 75, 90, 105, or 120 minutes, respectively, by increasing the intraocular pressure (IOP) of the left eye above systolic values. Five, 7, 14, and 30 days later, the rats were killed, and their retinas were prepared as wholemounts for examination under fluorescence microscopy to estimate RGC survival. RESULTS The authors found that periods of ischemia of 30 and 45 minutes do not induce RGC death; longer periods of transient ischemia induce the death of a proportion of RGCs, and the proportion increases with the duration of the ischemia; RGC death, which can be observed as early as 5 days after ischemia, continues during the 30-day study period; and periods of ischemia that last 90 minutes or more cause the death of approximately 95% of the RGC population 30 days later. CONCLUSIONS Increases of the IOP above systolic levels for periods of 60 minutes or more result in RGC loss in the rat retina. Both the duration of the initial transient period of ischemia and the duration of the survival period influence the proportion of RGC death.
Feature-Level Change Impact Analysis Using Formal Concept Analysis

Software Product Line Engineering (SPLE) is a systematic reuse approach to develop a short time-to-market and quality products, called Software Product Line (SPL). Usually, a SPL is not developed from scratch but it is developed by reusing features (resp. their implementing source code elements) of existing similar systems previously developed by ad-hoc reuse techniques. The features implementations that are reused may be changed for developing new products (SPL) using SPLE. Any code element can be a part of (shared by) different features implementations; modifying one feature's implementation can thus impact others. Therefore, feature-level Change Impact Analysis (CIA) is important to predict affected features for change management purpose. In this paper, we propose a feature-level CIA approach using Formal Concept Analysis (FCA) applied to SPL evolution. In our experimental evaluation using three case studies of different domains and sizes, we show the effectiveness of our technique in terms of the most commonly used metrics on the subject.
Tissue-specific expression of the PNZIP promoter is mediated by combinatorial interaction of different cis-elements and a novel transcriptional factor

Recent studies demonstrated that PNZIP and its homologs encode a special cyclase and play an important role in chlorophyll biosynthesis in higher plants. To investigate the molecular mechanism governing the PNZIP gene, the PNZIP promoter was isolated and analyzed. Deletion analysis indicated that G-box is an important element in the regulation of the reporter gene expression. Further mutation assay demonstrated that G-box and GATACT elements are necessary and sufficient for the high and tissue-specific expression of the GUS gene. Using yeast one-hybrid screening, we have isolated a novel tobacco bZIP protein, NtbZIP, which can specifically recognize the G-box of the PNZIP promoter. The NtbZIP protein shares a limited amino acid homology to Arabidopsis ABI5 and AtAREB1 and very low homology to other bZIP proteins. Northern blot analysis showed that the NtbZIP gene is not induced by exogenous ABA and is expressed in different tobacco organs. Cotransformation assays showed that the NtbZIP protein could activate the transcription of the GUS gene driven by the PNZIP promoter. Transgenic tobaccos analysis demonstrated that constitutively expressing antisense NtbZIP gene resulted in a lower NTZIP synthesis and reduced chlorophyll levels. We suggest that NTZIP is a target gene of NtbZIP, which is involved in the regulation of chlorophyll biosynthesis.
MiniTn7-transposon delivery vectors for inducible or constitutive fluorescent protein expression in Enterobacteriaceae

Here we present the generation and function of two sets of bacterial plasmids that harbor fluorescent genes encoding either blue, cyan, yellow or red fluorescent proteins. In the first set, protein expression is controlled by the strong and constitutive nptII promoter whereas in the second set, the strong tac promoter was chosen that underlies LacIq regulation. Furthermore, the plasmids are mobilizable, contain Tn7 transposons and a temperature-sensitive origin of replication. Using Escherichia coli S17-1 as donor strain, the plasmids allow fast and convenient Tn7-transposon delivery into many enterobacterial hosts, such as the here-used E. coli O157:H7. This procedure omits the need of preparing competent recipient cells and antibiotic resistances are only transiently conferred to the recipients. As the fluorescence proteins show little to no overlap in fluorescence emission, the constructs are well suited for the study of multicolored synthetic bacterial communities during biofilm production or in host colonization studies, e.g. of plant surfaces. Furthermore, tac promoter-reporter constructs allow the generation of so-called reproductive success reporters, which allow to estimate past doublings of bacterial individuals after introduction into environments, emphasizing the role of individual cells during colonization.
Stability-throughput analysis in a multi-hop ad hoc networks with weighted fair queueing

Consider a wireless ad hoc network with random access channel. We present a model that takes into account topology, routing, random access in MAC layer and forwarding probability. We propose a new approach (based on cycle of transmissions) to derive throughput of multi-hop routes and stability of forwarding queues. With this cycle approach, we correct the analytical expressions derived in [2] and discover that their results are valid only in particular cases such as symmetric networks. However, in this paper, we get extended results for general network case. Moreover, we confirm that (i) the forwarding queues in a system of weighted fair queues has a special property and (ii) the end to end throughput of a connection does not depend on the load of the intermediate forwarding queues between a source and a destination. We perform extensive simulations and verify that the analytical results exactly match the results obtained from simulations.
Markov chain approximations for deterministic control problems with affine dynamics and quadratic cost in the control

We restrict our attention to an important class of deterministic optimal control problems: those with dynamics that are affine in the control and cost that is quadratic in the control. As a representative control problem in this class we consider an escape time problem. The chains we construct are much more broadly applicable, since the only germane part of the problem formulation will be the form of the dynamics and the running cost. In particular, these chains can also be used for discounted problems, infinite time problems that do not involve discounting and constrained dynamics.
On the Limiting Distribution of Lempel-Ziv’78 Redundancy for Memoryless Sources

We study the Lempel-Ziv'78 algorithm and show that its (normalized) redundancy rate tends to a Gaussian distribution for memoryless sources. We accomplish it by extending findings from our 1995 paper, in particular, by presenting a new simplified proof of the central limit theorem (CLT) for the number of phrases in the LZ'78 algorithm. We first analyze the asymptotic behavior of the total path length in the associated digital search tree built from independent sequences. Then, a renewal theory type argument yields CLT for LZ'78 scheme. Here, we extend our analysis of LZ'78 algorithm to present new results on the convergence of moments, moderate and large deviations, and CLT for the (normalized) redundancy. In particular, we confirm that the average redundancy rate decays as 1/log n, and we find that the variance is of order 1/n, where n is the length of the text.
Heritability of Initiation and Duration of Breastfeeding Behavior

Breastfeeding is considered the best and most natural way of feeding infants during the first months of life. Breastfeeding has multiple short- and long-term benefits for the health of the mother and babies, and from an evolutionist standpoint, it would be a behavior worth preserving throughout time. The aim of the present study was to explore the relative influence of genetic and environmental factors in this behavior. Three hundred and ninety pairs of adult female twins provided information about whether they breastfed their children and for how long. Three variables were analyzed: initiation and duration for the first baby, and mean duration for the complete offspring. Polychoric correlations were consistently higher for monozygotic twins, supporting a role for genetic factors (0.49 vs. 0.22 for initiation; 0.44 vs. 0.22 for duration in the first newborn; and 0.52 vs. 0.31 for duration on average). Model-fitting analyses found that in the best-fitting model, variance was explained by additive genetic and non-shared environmental factors, with estimated heritabilities ranging from 0.39 to 0.52 in the measures studied. The rest of the variance would be due to unique environmental factors. We conclude that genetic factors have a significant impact on the complex behavior of breastfeeding.
Perturbation Theory and Optimality Conditions for the Best Multilinear Rank Approximation of a Tensor

The problem of computing the best rank-$(p,q,r)$ approximation of a third order tensor is considered. First the problem is reformulated as a maximization problem on a product of three Grassmann manifolds. Then expressions for the gradient and the Hessian are derived in a local coordinate system at a stationary point, and conditions for a local maximum are given. A first order perturbation analysis is performed using the Grassmann manifold framework. The analysis is illustrated in a few examples, and it is shown that the perturbation theory for the singular value decomposition is a special case of the tensor theory.
A highly integrated multiband LTE SiGe power amplifier for envelope tracking

This paper presents a highly integrated SiGe power amplifier (PA) for multiband long-term evolution (LTE). Two different harmonic loadings are investigated for the PA to achieve the optimized efficiencies for the envelope tracking (ET) and average power tracking (APT), respectively. By adopting the proper PA structure, our ET PA delivers >39% overall power-added efficiency (PAE) at the maximum output power (Pout) of 26.5 dBm with ACLREUTRA below -42 dB and EVM below 1% for the LTE QPSK 10 MHz at 699-716 MHz, 824-915 MHz and 1710-1980 MHz. At the back-off more than 5 dB below the maximum Pout, the ET PA is reconfigured to APT for remaining high overall PAE and linearity across a broad Pout range.
Self healing in polymers and polymer composites. Concepts, realization and outlook: A review

Formation of microcracks is a critical problem in polymers and polymer composites during their service in struc- tural applications. Development and coalescence of microcracks would bring about catastrophic failure of the materials and then reduce their lifetimes. Therefore, early sensing, diagnosis and repair of microcracks become necessary for removing the latent perils. In this context, the materials possessing self-healing function are ideal for long-term operation. Self-repair- ing polymers and polymer composites have attracted increasing research interests. Attempts have been made to develop solutions in this field. The present article reviews state-of-art of the achievements on the topic. According to the ways of healing, the smart materials are classified into two categories: (i) intrinsic self-healing ones that are able to heal cracks by the polymers themselves, and (ii) extrinsic in which healing agent has to be pre-embedded. The advances in this field show that selection and optimization of proper repair mechanisms are prerequisites for high healing efficiency. It is a challenging job to either invent new polymers with inherent crack repair capability or integrate existing materials with novel healing system.
Measures and LMIs for optimal control of piecewise-affine systems

This paper considers the class of deterministic continuous-time optimal control problems (OCPs) with piecewise-affine (PWA) vector field, polynomial Lagrangian and semialgebraic input and state constraints. The OCP is first relaxed as an infinite-dimensional linear program (LP) over a space of occupation measures. This LP is then approached by an asymptotically converging hierarchy of linear matrix inequality (LMI) relaxations. The relaxed dual of the original LP returns a polynomial approximation of the value function that solves the Hamilton-Jacobi-Bellman (HJB) equation of the OCP. Based on this polynomial approximation, a suboptimal policy is developed to construct a state feedback in a sample-and-hold manner. The results show that the suboptimal policy succeeds in providing a suboptimal state feedback law that drives the system relatively close to the optimal trajectories and respects the given constraints.
European Data Protection Supervisor

1. On 18 October 2007, the European Commission submitted a Proposal for a Regulation (hereafter ‘the proposal’) to the European Parliament and the Council aiming at amending Regulation (EC) No 2252/2004 (). The European Data Protection Supervisor (EDPS) was not consulted about this proposal, although, according to Article 28(2) of Regulation (EC) No 45/2001, the Commission shall consult the EDPS, when it adopts a legislative proposal relating to the protection of individuals' rights and freedoms with regard to the processing of personal data.
Competitive Spectrum Management With Incomplete Information

An important issue in wireless communication is the interaction between selfish independent wireless communication systems operating in the same frequency band. Due to the selfish nature of each system, this interaction is well modeled as a strategic game where each player (system) behaves to maximize its own utility. This paper studies an interference game where each system (player) has incomplete information about the other player's channel conditions. Using partial information, players choose between frequency division multiplexing (FDM) strategy and full spread (FS) strategy where power is spread across the transmission band. An important notion in game theory is the Nash equilibrium (NE) which represents a steady point in the game; that is, each player can only lose by unilaterally deviating from it. A trivial Nash equilibrium point in this game is where players mutually choose FS and interfere with each other. This point may lead to poor spectrum utilization from a global network point of view and even for each user individually. In this paper, we provide a closed form expression for a nonpure-FS ε -Nash equilibrium point; i.e., an equilibrium point where players choose FDM for some channel realizations and FS for the others. To reach this point, the only instantaneous channel state information (CSI) required by each user is its own interference-to-signal ratio. We show that operating in this nonpure-FS ε-Nash equilibrium point increases each user's throughput and therefore improves the spectrum utilization, and demonstrate that this performance gain can be substantial. Finally, important insights are provided into the behavior of selfish and rational wireless users as a function of the channel parameters such as fading probabilities, the interference-to-signal ratio.
HapticLib: a haptic feedback library for embedded platforms

Mobile and wearable embedded devices connect the user with digital information in a continuous and pervasive way. A key benefit is given by the possibility to exploit multi-modal interaction capabilities that can dynamically act on different human senses and the cooperative capabilities of the small and pervasive devices. In this scenario we present HapticLib, a software library for the development and implementation of vibro-tactile feedback on resource-constrained embedded devices. It was designed to offer a high-level programming interface for the rendering of haptic patterns, accurately modeling the nature of vibro-tactile actuators and different touch experiences.
Nanomechanical resonant structures in single-crystal diamond

With its host of outstanding material properties, single-crystal diamond is an attractive material for nanomechanical systems. Here, the mechanical resonance characteristics of freestanding, single-crystal diamond nanobeams fabricated by an angled-etching methodology are reported. Resonance frequencies displayed evidence of significant compressive stress in doubly clamped diamond nanobeams, while cantilever resonance modes followed the expected inverse-length-squared trend. Q-factors on the order of 104 were recorded in high vacuum. Results presented here represent initial groundwork for future diamond-based nanomechanical systems which may be applied in both classical and quantum applications.
A respiration sensor for a chest-strap based wireless body sensor

In this paper we present a respiration sensor suitable for an integration into a wireless body sensor worn around the chest. The thorax expansion and contraction during in- and exhalation is captured using a force-sensing resistor. Based on the captured thoracic movements, the breaths are determined with a peak detection algorithm. For evaluation, a treadmill experiment with five subjects was conducted using an ergospirometry system as a reference. Overall, an average deviation of -0.32±0.68 min-1 in the respiration rate between the ergospirometry and our sensor was observed. In general, the captured thoracic movements showed breaths as distinctive oscillations, but in some cases a non-optimal pressure transfer between thorax and sensor was observed. Therefore, a mechanical housing mechanism was developed. A comparison of our construction with a respiratory inductance plethysmography (RIP)-based sensor shows a close relationship with the captured thoracic movements during normal and deep respiration.
Pose estimation and 3D environment reconstruction using less reliable depth data

Pose estimation and 3D reconstruction of environment are essential technics in robotics and computer vision. In this paper we present a method for camera tracking and 3D reconstruction of static environments, using a ToF sensor which provides less reliable depth information. Based on a primary camera pose, we eliminate outlier in distance measurements. Subsequently, we estimate camera pose again using only inlier data. A voxel grid map is updated by integrating depth measurement with a truncated signed distance function. It is represented as 3D environment reconstruction. Our method is an attractive extending of the pose estimation in outdoor environment. In outdoor environment, 3D range cameras cannot measure the distance or they provide inaccurate distance measurement. The experiments were carried out both in indoor and outdoor and we analyze the results of the proposed methods which use a ToF camera in comparison with a previous approach.
An Approach to Building the Hierarchical Element of a Lexical Knowledge Base From a Machine Readable

This abstract describes an approach to extracting taxonomies from machine readable dictionaries and using them to structure a lexical knowledge base which incorporates default inheritance. Taxonomy construction is based on an intuitive notion of the organisation of the substantial quantities of data in machine readable dictionaries which were developed for quite independent purposes. Our intention is to investigate how this aaects, and is aaected by, the formal semantics of the knowledge representation for the lexical knowledge base which we are attempting to create, especially with respect to inheritance.