Miracle-dz/UniFAR-FTUs huggingface dataset:
An Extensive Empirical Study of Feature Selection Metrics for Text Classification

Machine learning for text classification is the cornerstone of document categorization, news filtering, document routing, and personalization. In text domains, effective feature selection is essential to make the learning task efficient and more accurate. This paper presents an empirical comparison of twelve feature selection methods (e.g. Information Gain) evaluated on a benchmark of 229 text classification problem instances that were gathered from Reuters, TREC, OHSUMED, etc. The results are analyzed from multiple goal perspectives-accuracy, F-measure, precision, and recall-since each is appropriate in different situations. The results reveal that a new feature selection metric we call 'Bi-Normal Separation' (BNS), outperformed the others by a substantial margin in most situations. This margin widened in tasks with high class skew, which is rampant in text classification problems and is particularly challenging for induction algorithms. A new evaluation methodology is offered that focuses on the needs of the data mining practitioner faced with a single dataset who seeks to choose one (or a pair of) metrics that are most likely to yield the best performance. From this perspective, BNS was the top single choice for all goals except precision, for which Information Gain yielded the best result most often. This analysis also revealed, for example, that Information Gain and Chi-Squared have correlated failures, and so they work poorly together. When choosing optimal pairs of metrics for each of the four performance goals, BNS is consistently a member of the pair---e.g., for greatest recall, the pair BNS + F1-measure yielded the best performance on the greatest number of tasks by a considerable margin.
Critical Weight Loss in Patients With Oropharynx Cancer During Radiotherapy (± Chemotherapy)

ABSTRACT Critical weight loss (CWL) defined as ≥5% in one month, is common in patients with oropharynx cancer and identification of patients at risk is challenging. We aimed to investigate if predictors of CWL in this population exist to guide nutritional intervention. Data were collected retrospectively on 134 patients who had radiotherapy (RT) ± concurrent chemotherapy (CRT) ± surgery. Body weights were collected pre-RT and during RT, with percentage weight change measured against baseline. Logistic regression was used to analyze chosen predictors. The incidence of CWL was 67% (26% of these patients experiencing ≥10% loss). Patients who had CRT experienced significantly higher weight loss (7.1% versus 4.7%; p = 0.001). Tube feeding was used in 64% of patients with CWL, the majority of tubes inserted reactively. These patients had a mean weight change of −8.8% (versus −7.1% in those with no tube) (p = 0.004). Multivariate models identified increased risk of CWL in tonsil origin tumors (p < 0.05), with CRT being the only predictor of weight loss ≥10% (p < 0.05). These patients are particularly vulnerable to CWL and the majority experience significant nutritional issues during RT, regardless of nutritional status at diagnosis. Nutritional intervention should be targeted accordingly.
Modeling the Population Dynamics of a Cuckoo-Host Association and the Evolution of Host Defenses

Cuckoo parasitism in Nagano Prefecture in Japan has shown dramatic changes in the parasitism rate, host usage by the cuckoo, and defensive behavior of hosts during the past 60 yr. To gain insights into these phenomena, we model the population dynamics of a cuckoo-host association together with the population genetics of a rejecter gene in the host population. Analysis shows that both the dynamical change in the host-parasite association and the establishment of the host's counteradaptation crucially depend on the product of two factors, the carrying capacity of the host and cuckoo's searching efficiency. When the product is less than a critical value, the host population cannot evolve a counteradaptation even if parasitized by the cuckoo. Hence, the lack of counteradaptation does not necessarily imply that the host population only recently has become parasitized. As the product becomes larger, the rejection behavior will be eventually established at higher levels in the host population In this case, the spreading of rejection behavior is very fast, which suggests that the cuckoo-host association reaches an equilibrium state within a relatively short period. These results make possible new interpretations of several circumstances reported about cuckoo-host associations.
3-D interpretation of short-period magnetotelluric data at Furnas Volcano, Azores Islands

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. 3-D interpretation of short-period magnetotelluric data at Furnas Volcano, Azores Islands C Hogg, D Kiyan, V Rath, S. Byrdina, J. Vandemeulebrouck, A. Revil, F Viveiros, R Carmo, C Silva, T Ferreira
Espace culturel, territoire et terroir : approches spatiales des groupes campaniformes récents dans le sud-est de la France

Le Campaniforme recent est marque, dans le sud-est de la France, par un groupe regional rhodano-provencal qui entretient des relations complexes avec d'autres groupes campaniformes regionaux et des groupes locaux du Neolithique final. Les approches spatiales de ce groupe a diverses echelles (l'espace culturel, le territoire et le terroir) permettent de mieux apprehender la geographie prehistorique mais aussi d'envisager d'autres problematiques telles que la chronologie, l'histoire des populations et les modeles socio-economiques.
Extrapolative Expectations and the Equity Premium

Many stockholders irrationally believe that high recent stock market returns predict high future stock market returns. The presence of these extrapolators can help resolve the equity premium puzzle if the elasticity of intertemporal substitution (EIS) is greater than one. In our model, extrapolators’ overreaction to dividend news generates countercyclical expected returns while attenuating their consumption response. The equity premium is high because extrapolators believe stocks are a bad hedge and rational investors’ limited risk-bearing capacity prevents them from fully compensating for extrapolators’ reluctance to hold stocks. We match the U.S. data with a relative risk aversion of 4 and an EIS of 2.
Navigation Support for Exploring Starfield Displays on Personal Digital Assistants

Due to advances in hardware technologies, mobile devices are increasingly capable of handling large-scale data sets. While this development broadens the application scope of smartphones and PDAs, it also means that high information loads must be displayed on very limited screen real estate. A solution to this problem may be provided by starfield displays. Starfield displays maximize the data-pixel ratio by presenting data inside a zoomable 2D scatterplot. However, a drawback is that once users have zoomed into the information space they tend to become lost, due to the clipping of orientation cues. The article summarizes the research results of recent projects that were conducted to improve the navigation and orientation features of starfield displays on small screens. Several approaches such as smooth zooming, overview window, and fisheye view have been implemented and user-tested. The results may support interface designers when targeting mobile devices.
Muscle damage and resting metabolic rate after acute resistance exercise with an eccentric overload.

PURPOSE The purpose of this investigation was to determine whether muscle damage caused from acute resistance exercise with an eccentric overload would influence resting metabolic rate (RMR) up to 72 h postexercise in resistance-trained (RT) and untrained (UT) subjects. METHODS Nine RT and 9 UT male subjects (mean +/- SD; age = 20.7 +/- 2.1 yr; body mass = 79.0 +/- 1.4 kg; height = 178.4 +/- 3.1 cm; and body fat = 10.2 +/- 1.6%) were measured for RMR, creatine kinase concentration ([CK]), and rating of perceived muscle soreness (RPMS) on five consecutive mornings. To induce muscle damage, after the measurements on day 2, each subject performed leg presses that emphasized the eccentric movement for 8 sets at his six-repetition maximum (6-RM). RESULTS Compared with baseline, the RMR (kJ x d(-1) and kJ x kg FFM(-1) x h(-1) was significantly elevated for RT and UT at 24 h and 48 h postexercise. From 24 h to 48 h to 72 h postexercise, RMR significantly decreased within both groups. The UT group had a significantly higher RMR at 24 h (9,705.4 +/- 204.5 kJ x d(-1)) and 48 h postexercise (8,930.9 +/- 104.4 kJ x d(-1)) when compared with the RT group (9,209.3 +/- 535.3 and 8,601.7 + 353.7 kJ x d(-1)). Both [CK] and RPMS showed a similar time course. CONCLUSION There was a significantly higher [CK] for the UT group at 24 h postexercise (320.4 +/- 20.1 U x L(-1)) and for both [CK] and RPMS at 48 h (1,140.3 +/- 37.1 U x L(-1) and 4.4 +/- 0.5, respectively) and 72 h postexercise (675.9 +/- 41.7 U x L(-1) and 1.67 +/- 0.5, respectively) when compared with the RT group (24 h, 201.9 +/- 13.4 U x L(-1); 48 h, 845.4 +/- 30.7 U x L(-1) and 3.7 +/- 0.5: and 72 h postexercise, 420.2 +/- 70.2 U x L(-1) and 0.89 +/- 0.3). These data indicate that eccentrically induced muscle damage causes perturbations in RMR up to 48 h postexercise.
Methods Towards Invasive Human Brain Computer Interfaces

During the last ten years there has been growing interest in the development of Brain Computer Interfaces (BCIs). The field has mainly been driven by the needs of completely paralyzed patients to communicate. With a few exceptions, most human BCIs are based on extracranial electroencephalography (EEG). However, reported bit rates are still low. One reason for this is the low signal-to-noise ratio of the EEG [16]. We are currently investigating if BCIs based on electrocorticography (ECoG) are a viable alternative. In this paper we present the method and examples of intracranial EEG recordings of three epilepsy patients with electrode grids placed on the motor cortex. The patients were asked to repeatedly imagine movements of two kinds, e.g., tongue or finger movements. We analyze the classifiability of the data using Support Vector Machines (SVMs) [18,21] and Recursive Channel Elimination (RCE) [11].
Effect of Nano Phosphatic Fertilizer on Nutrient Content and Uptake by Pearl Millet (Pennisetum glaucum L.) Crop

Phosphorus (P) is essential to all forms of life and important for its contribution towards aiding the native soil fertility and sustaining it. The economic challenges associated with increasing P fertilizer prices are driving the increased interest in improving P use efficiency. Moreover, transfer of soil P from cultivated land through erosion or runoff is a major cause of P-induced eutrophication in surface waters. This underlines the significance of P management taking care of native supplies and crop demands under a given cropping system. In order to develop judicious P management options, it is essential to critically analyse the scientific knowledge pertaining to different aspects governing the availability of native and applied P to the crops (Sanyal et al., 2015). The application of nano technology in fertilizer is the best alternative to increase PUE.
Mobile Interface for Content-Based Image Management

People make more and more use of digital image acquisition devices to capture screenshots of their everyday life. The growing number of personal pictures raise the problem of their classification. Some of the authors proposed an automatic technique for personal photo album management dealing with multiple aspects (i. e., people, time and background) in a homogenous way. In this paper we discuss a solution that allows mobile users to remotely access such technique by means of their mobile phones, almost from everywhere, in a pervasive fashion. This allows users to classify pictures they store on their devices. The whole solution is presented, with particular regard to the user interface implemented on the mobile phone, along with some experimental results.
A novel scalable video coding scheme using super resolution techniques

A novel scheme of scalable video coding (SVC) using super-resolution techniques is proposed in this paper. Utilizing the spatial/temporal scalability of H.264/AVC, we encode half of input high-resolution(HR) frames and their low-resolution (LR) counterparts in a video sequence and employ super-resolution (SR) method to reconstruct skipped frames during decoding. The payload saved from skipped frames can be used to improve the quality of encoded frames. This scheme provides a choice of SVC to improve the quality of HR frames while maintaining low bit rate transmission and reducing encoding complexity. Experiments show that our scheme performs well in both peak signal to noise ratio (PSNR) and subjective visual quality at low bit rate.
The origin of the ultramafic rocks of the Tulu Dimtu Belt, western Ethiopia – do they represent remnants of the Mozambique Ocean?

Abstract The East African Orogen contains a series of high-strain zones that formed as Gondwana amalgamated. The Tulu Dimtu shear belt is one of these N–S structures within the Barka–Tulu Dimtu zone in western Ethiopia, and contains ultramafic bodies of equivocal origin. Identifying the petrogenetic origin of these enigmatic rocks provides evidence for the geodynamic significance of these shear zones. Owing to their altered state, these ultramafic rocks’ well-preserved chrome spinels provide the only reliable evidence for their source and tectonic affiliation. Chrome spinels have high Cr2O3 (30.04–68.76 wt %), while recalculated Fe2O3 (< 2 %) and TiO2 (0.01–0.51 %) values are low. The Cr# (molar Cr3+/Cr3+ + Al2+) and Mg# (Mg2+/Mg2+ + Fe2+) have averages of 0.88 and 0.22, respectively. Based on olivine–spinel equilibria, the calculated fO2 values (FMQ +3.03) for the dunites reveal a highly oxidized environment. This spinel chemistry (high Cr# > 0.6 and low Ti) supports a supra-subduction origin, with an oxidized mantle source more refractory than depleted MORB mantle (DMM). These spinel compositions indicate that some ultramafic bodies in western Ethiopia, including those from Daleti, Tulu and Dimtu, are serpentinized peridotites emplaced as obducted ophiolite complexes. By contrast, the ultramafic rocks from the Yubdo locality have a different spinel chemistry, with strong affiliation with igneous spinels formed in Alaskan-style mafic intrusions. These collective results suggest that regardless of their origin as supra-subduction ophiolites or as Alaskan-type intrusions, these spinels were formed on a convergent-subduction margin.
How could health information exchange better meet the needs of care practitioners?

Summary Background: Health information exchange (HIE) has the potential to improve the quality of health-care by enabling providers with better access to patient information from multiple sources at the point of care. However, HIE efforts have historically been difficult to establish in the US and the failure rates of organizations created to foster HIE have been high. Objectives: We sought to better understand how RHIO-based HIE systems were used in practice and the challenges care practitioners face using them. The objective of our study were to so investigate how HIE can better meet the needs of care practitioners. Methods: We performed a multiple-case study using qualitative methods in three communities in New York State. We conducted interviews onsite and by telephone with HIE users and non-users and observed the workflows of healthcare professionals at multiple healthcare organizations participating in a local HIE effort in New York State. Results: The empirical data analysis suggests that challenges still remain in increasing provider usage, optimizing HIE implementations and connecting HIE systems across geographic regions. Important determinants of system usage and perceived value includes users experienced level of available information and the fit of use for physician workflows. Conclusions: Challenges still remain in increasing provider adoption, optimizing HIE implementations, and demonstrating value. The inability to find information reduced usage of HIE. Healthcare organizations, HIE facilitating organizations, and states can help support HIE adoption by ensuring patient information is accessible to providers through increasing patient consents, fostering broader participation, and by ensuring systems are usable. Citation: Kierkegaard P, Kaushal R, Vest JR. How could health information exchange better meet the needs of care practitioners? Appl Clin Inf 2014; 5: 861–877 http://dx.doi. org/10.4338/ACI-2014-06-RA-0055
Construction of neural network-based prediction intervals for short-term electrical load forecasting

Short-term load forecasting (STLF) is of great importance for control and scheduling of electrical power systems. The uncertainty of power systems increases due to the random nature of climate and the penetration of the renewable energies such as wind and solar power. Traditional methods for generating point forecasts of load demands cannot properly handle uncertainties in datasets. To quantify these potential uncertainties associated with forecasts, this paper implements a neural network (NN)-based method for construction of prediction intervals (PIs). A newly proposed method, called lower upper bound estimation (LUBE), is applied to develop PIs using NN models. The primary multi-objective problem is firstly transformed into a constrained single-objective problem. This new problem formulation is closer to the original problem and has fewer parameters than the cost function. Particle swarm optimization (PSO) integrated with the mutation operator is used to solve the problem. Two case studies from Singapore and New South Wales (Australia) historical load datasets are used to validate the PSO-based LUBE method. Demonstrated results show that the proposed method can construct high quality PIs for load forecasting applications.
Coinductive Axiomatization of Recursive Type Equality and Subtyping

We present new sound and complete axiomatizations of type equality and subtype inequality for a first-order type language with regular recursive types. The rules are motivated by coinductive characterizations of type containment and type equality via simulation and bisimulation, respectively. The main novelty of the axiomatization is the fixpoint rule (or coinduction principle). It states that from A,P $$\vdash$$ P one may deduce A $$\vdash$$ P, where P is either a type equality τ = τ' or type containment τ ≤ τ' and the proof of the premise must be contractive in a sense we define in this paper. In particular, a proof of A, P $$\vdash$$ P using the assumption axiom is not contractive. The fixpoint rule embodies a finitary coinduction principle and thus allows us to capture a coinductive relation in the fundamentally inductive framework of inference systems. The new axiomatizations are more concise than previous axiomatizations, particularly so for type containment since no separate axiomatization of type equality is required, as in Amadio and Cardelli's axiomatization. They give rise to a natural operational interpretation of proofs as coercions. In particular, the fixpoint rule corresponds to definition by recursion. Finally, the axiomatization is closely related to (known) efficient algorithms for deciding type equality and type containment. These can be modified to not only decide type equality and type containment, but also construct proofs in our axiomatizations efficiently. In connection with the operational interpretation of proofs as coercions this gives efficient (O(n 2) time) algorithms for constructing efficient coercions from a type to any of its supertypes or isomorphic types. More generally, we show how adding the fixpoint rule makes it possible to characterize inductively a set that is coinductively defined as the kernel (greatest fixed point) of an inference system.
Iterated wavelet transformation and signal discrimination for HRR radar target recognition

This paper explores the use of wavelets to improve the selection of discriminant features in the target recognition problem using high range resolution (HRR) radar signals in an air to air scenario. We show that there is statistically no difference among four different wavelet families in extracting discriminatory features. Since similar results can be obtained from any of the four wavelet families and wavelets within the families, the simplest wavelet (Haar) should be used. We use the box classifier to select the 128 most salient pseudo range bins and then apply the wavelet transform to this reduced set of bins. We show that by iteratively applying this approach, the classifier performance is improved. We call this the iterated wavelet transform . The number of times the feature reduction and transformation can be performed while producing improved classifier performance is small and the transformed features are shown to quickly cause the performance to approach an asymptote.
Oxygen Generating Biomaterials Preserve Skeletal Muscle Homeostasis under Hypoxic and Ischemic Conditions

Provision of supplemental oxygen to maintain soft tissue viability acutely following trauma in which vascularization has been compromised would be beneficial for limb and tissue salvage. For this application, an oxygen generating biomaterial that may be injected directly into the soft tissue could provide an unprecedented treatment in the acute trauma setting. The purpose of the current investigation was to determine if sodium percarbonate (SPO), an oxygen generating biomaterial, is capable of maintaining resting skeletal muscle homeostasis under otherwise hypoxic conditions. In the current studies, a biologically and physiologically compatible range of SPO (1–2 mg/mL) was shown to: 1) improve the maintenance of contractility and attenuate the accumulation of HIF1α, depletion of intramuscular glycogen, and oxidative stress (lipid peroxidation) that occurred following ∼30 minutes of hypoxia in primarily resting (duty cycle = 0.2 s train/120 s contraction interval <0.002) rat extensor digitorum longus (EDL) muscles in vitro (95% N2–5% CO2, 37°C); 2) attenuate elevations of rat EDL muscle resting tension that occurred during contractile fatigue testing (3 bouts of 25 100 Hz tetanic contractions; duty cycle = 0.2 s/2 s = 0.1) under oxygenated conditions in vitro (95% O2–5% CO2, 37°C); and 3) improve the maintenance of contractility (in vivo) and prevent glycogen depletion in rat tibialis anterior (TA) muscle in a hindlimb ischemia model (i.e., ligation of the iliac artery). Additionally, injection of a commercially available lipid oxygen-carrying compound or the components (sodium bicarbonate and hydrogen peroxide) of 1 mg/mL SPO did not improve EDL muscle contractility under hypoxic conditions in vitro. Collectively, these findings demonstrate that a biological and physiological concentration of SPO (1–2 mg/mL) injected directly into rat skeletal muscle (EDL or TA muscles) can partially preserve resting skeletal muscle homeostasis under hypoxic conditions.