Miracle-dz/UniFAR-FTUs huggingface dataset:
Predicting web service levels during VM live migrations

The ability to live migrate virtual machines (VMs) between physical servers without any perceivable service interruption is pivotal for building more energy efficient Cloud Computing infrastructures in the future. Nevertheless, energy efficiency is not worth the effort if quality metrics (e.g., QoS, QoE) are severely decreased by, e.g., dynamic consolidation using live migration. We identify the most significant utilization metrics to predict the service level during live migrations for a web server scenario. We show important correlations, give reasons and draw conclusions for systems using live migration for yielding higher energy efficiency. We also give reasons for extending the current hypervisors' capabilities regarding VM utilization collection and reporting. We present the effects of live migration on service levels for different workload scenarios. In particular, we demonstrate that live migration should be done preventively. This anticipates disproportional high service level degradation due to live migration. We examine the most important utilization metrics for predicting the service level by both stepwise and exhaustive regression. As a result, we can explain 90% of the service level variance during live migration with a single variable, using more variables yields 95%.
Floer mini-max theory, the Cerf diagram, and the spectral invariants

The author previously defined the spectral invariants, denoted by ρ(H; a), of a Hamiltonian function H as the mini-max value of the action functional AH over the Novikov Floer cycles in the Floer homology class dual to the quantum cohomology class a. The spectrality axiom of the invariant ρ(H; a) states that the mini-max value is a critical value of the action functional AH . The main purpose of the present paper is to prove this axiom for nondegenerate Hamiltonian functions in irrational symplectic manifolds (M, ω). We also prove that the spectral invariant function ρa : H 7→ ρ(H; a) can be pushed down to a continuous function defined on the universal (étale) covering space ] Ham(M, ω) of the group Ham(M, ω) of Hamiltonian diffeomorphisms on general (M, ω). For a certain generic homotopy, which we call a Cerf homotopy H = {Hs}0≤s≤1 of Hamiltonians, the function ρa ◦ H : s 7→ ρ(H; a) is piecewise smooth away from a countable subset of [0, 1] for each non-zero quantum cohomology class a. The proof of this nondegenerate spectrality relies on several new ingredients in the chain level Floer theory, which have their own independent interest: a structure theorem on the Cerf bifurcation diagram of the critical values of the action functionals associated to a generic one-parameter family of Hamiltonian functions, a general structure theorem and the handle sliding lemma of Novikov Floer cycles over such a family and a family version of new transversality statements involving the Floer chain map, and many others. We call this chain level Floer theory as a whole the Floer mini-max theory.
Thermodynamic Formalism for Random Subshifts of Finite Type

A central role in the thermodynamic formalism of measure preserving transformations is played by the pressure function. For the setup of random dynamical systems (skew-product transformations) we introduce this notion properly and for the special case of random subshifts of nite type we present some equivalent deenitions, which are better to handle. On the basis of these notions we are able to complete the thermodynamic formalism for random subshifts of nite type, in particular we discuss suucient integrability conditions and investigate quasi-Gibbs states and analyticity properties of pressure.
UT Austin Villa 2014: RoboCup 3D Simulation League Champion via Overlapping Layered Learning

Layered learning is a hierarchical machine learning paradigm that enables learning of complex behaviors by incrementally learning a series of sub-behaviors. A key feature of layered learning is that higher layers directly depend on the learned lower layers. In its original formulation, lower layers were frozen prior to learning higher layers. This paper considers an extension to the paradigm that allows learning certain behaviors independently, and then later stitching them together by learning at the "seams" where their influences overlap. The UT Austin Villa 2014 RoboCup 3D simulation team, using such overlapping layered learning, learned a total of 19 layered behaviors for a simulated soccer-playing robot, organized both in series and in parallel. To the best of our knowledge this is more than three times the number of layered behaviors in any prior layered learning system. Furthermore, the complete learning process is repeated on four different robot body types, showcasing its generality as a paradigm for efficient behavior learning. The resulting team won the RoboCup 2014 championship with an undefeated record, scoring 52 goals and conceding none. This paper includes a detailed experimental analysis of the team's performance and the overlapping layered learning approach that led to its success.
A Practical Study of Jointly Exploiting Multiple Image Compression Techniques for Wireless Multimedia Sensor Networks

In Wireless Multimedia Sensor Networks, the amount of multimedia traffic generated by the source nodes and relayed throughout the network towards the sink nodes is relatively vary large. As a result, the overall network performance and operational lifetime rely heavily on the efficiency and the complexity of the compression techniques used. However, known compression techniques have either high efficiency or low complexity but not both, which causes an imbalance in the distribution of the available network resources and hence shortens the network lifetime. In this work, a testbed to experimentally evaluate the performance and energy consumption of image compression and transmission was developed. Based on the testbed, the JPEG and JPEG2000 image compression algorithms were simultaneously embedded and evaluated with the purpose of jointly utilizing the features of both algorithms in order to facilitate a balanced tradeoff between the application performance requirements and the current network status. The analysis of the results verified that, in practical implementations of Wireless Multimedia Sensor Networks, using more than one compression technique by the same source node is feasible and has the potential of utilizing the capabilities of each technique based on the given situation.
Ant Colony Optimization with Genetic Operation and Its Application to Traveling Salesman Problem

Ant colony optimization (ACO) algorithms are a recently developed, population-based approach which has been successfully applied to optimization problems. However, in the ACO algorithms it is difficult to adjust the balance between intensification and diversification and thus the performance is not always very well. In this work, we propose an improved ACO algorithm in which some of ants can evolve by performing genetic operation, and the balance between intensification and diversification can be adjusted by numbers of ants which perform genetic operation. The proposed algorithm is tested by simulating the Traveling Salesman Problem (TSP). Experimental studies show that the proposed ACO algorithm with genetic operation has superior performance when compared to other existing ACO algorithms.
Age effects on transfer index performance and executive control in baboons (Papio papio)

Reversal performance in the transfer index (TI) task is known to improve from prosimians to apes, suggesting that this task is a marker of cognitive evolution within the primate taxa (Rumbaugh, 1970). However, the cognitive processes recruited by this task remain unclear. In the present study, 19 socially-housed baboons (Papio papio) from 1.6 to 14.3 years of age were tested on a computerized version of the TI task, using an automated self-testing procedure. Age was a significant factor in the level of success, with the younger baboons outperforming the adults. The younger baboons learned the pre-reversal discrimination faster and improved their post-reversal performance more rapidly than adult baboons. As 17 of these baboons had already been tested in previous studies on inhibitory control and cognitive flexibility tasks, comparison across tasks provide indicators of the underlying cognitive processes. Age variations in performance were similar between the TI task and in an adaptation of the Wisconsin Card Sorting Task (WCST) measuring cognitive flexibility (Bonté et al., 2011). This contrasts previous results from a task requiring motor inhibitory control (Fagot et al., 2011). Therefore, these findings suggest that cognitive flexibility was a central component of the cognitive system that evolved within non-human primates. They also implicate a decline in executive control with age that begins during early adulthood in this baboon species.
A Language to describe software texture in abstract design

A model-driven software development approach has been used in a project to build a complex commercial application within the New Zealand electricity industry. As part of the project a compact visual notation for the mapping between a highly abstract UML design model and implementation has been developed. The overall approach makes use of modelling and meta-modelling techniques, formal specifications of component architecture standards, a commercial UML modelling tool, and a template-based Java code generator.
Biogenesis of the rat hepatocyte plasma membrane in vivo: comparison of the pathways taken by apical and basolateral proteins using subcellular fractionation

We have used pulse-chase metabolic radiolabeling with L-[35S]methionine in conjunction with subcellular fractionation and specific protein immunoprecipitation techniques to compare the posttranslational transport pathways taken by endogenous domain-specific integral proteins of the rat hepatocyte plasma membrane in vivo. Our results suggest that both apical (HA 4, dipeptidylpeptidase IV, and aminopeptidase N) and basolateral (CE 9 and the asialoglycoprotein receptor [ASGP-R]) proteins reach the hepatocyte plasma membrane with similar kinetics. The mature molecular mass form of each of these proteins reaches its maximum specific radioactivity in a purified hepatocyte plasma membrane fraction after only 45 min of chase. However, at this time, the mature radiolabeled apical proteins are not associated with vesicles derived from the apical domain of the hepatocyte plasma membrane, but instead are associated with vesicles which, by several criteria, appear to be basolateral plasma membrane. These vesicles: (a) fractionate like basolateral plasma membrane in sucrose density gradients and in free-flow electrophoresis; (b) can be separated from the bulk of the likely organellar contaminants, including membranes derived from the late Golgi cisternae, transtubular network, and endosomes; (c) contain the proven basolateral constituents CE 9 and the ASGP-R, as judged by vesicle immunoadsorption using fixed Staphylococcus aureus cells and anti-ASGP-R antibodies; and (d) are oriented with their ectoplasmic surfaces facing outward, based on the results of vesicle immunoadsorption experiments using antibodies specific for the ectoplasmic domain of the ASGP-R. Only at times of chase greater than 45 min do significant amounts of the mature radiolabeled apical proteins arrive at the apical domain, and they do so at different rates. Approximate half-times for arrival are in the range of 90-120 min for aminopeptidase N and dipeptidylpeptidase IV whereas only 15-20% of the mature radiolabeled HA 4 associated with the hepatocyte plasma membrane fraction has become apical even after 150 min of chase. Our results suggest a mechanism for hepatocyte plasma membrane biogenesis in vivo in which all integral plasma membrane proteins are shipped first to the basolateral domain, followed by the specific retrieval and transport of apical proteins to the apical domain at distinct rates.
A case study on supervised classification of Swedish pseudo-coordination

We present a case study on supervised classification of Swedish pseudocoordination (SPC). The classification is attempted on the type-level with data collected from two data sets: a blog corpus and a fiction corpus. Two small experiments were designed to evaluate the feasability of this task. The first experiment explored a classifier’s ability to discriminate pseudo-coordinations from ordinary verb coordinations, given a small labeled data set created during the experiment. The second experiment evaluated how well the classifier performed at detecting and ranking SPCs in a set of unlabeled verb coordinations, to investigate if it could be used as a semi-automatic discovery procedure to find new SPCs.
Risk Preferences and their Robust Representation

To address the plurality of interpretations of the subjective notion of risk, we describe it by means of a risk order and concentrate on the context invariant features of diversification and monotonicity. Our main results are uniquely characterized robust representations of lower semicontinuous risk orders on vector spaces and convex sets. This representation covers most instruments related to risk and allows for a differentiated interpretation depending on the underlying context that is illustrated in different settings: for random variables, risk perception can be interpreted as model risk, and we compute among others the robust representation of the economic index of riskiness. For lotteries, risk perception can be viewed as distributional risk and we study the “value at risk. ” For consumption patterns, which excerpt an intertemporality dimension in risk perception, we provide an interpretation in terms of discounting risk and discuss some examples.
Effect of OBAs and Repeated Launderings on UVR Transmission through Fabrics

The increasing incidence of skin cancer in the populations of Australia and North America provided the impetus for developing educational programs about the risks of sun exposure and for developing sunscreens and sun protective clothing. In an effort to develop better fabrics for sun protective clothing, scientists have completed many studies investigating various factors influencing ultraviolet radiation (UVR) transmission through fabrics. Little research, however, has focused on the effect of repeated home launderings on UVR transmission through fabrics. In this study, eight types of summer-weight fabrics were subjected to 20 home launderings
How responsible leadership predicts organizational citizenship behavior for the environment in China

Purpose The purpose of this paper is to investigate the mediating effect of felt obligation for constructive change on the relationship between responsible leadership and organizational citizenship behavior for the environment (OCBE) in a China corporate environment, and this paper also analyze the moderated mediating effect of supervisor-subordinate guanxi on indirect relationship between responsible leadership and OCBE via felt obligation for constructive change. Design/methodology/approach This paper used 380 employee samples to analyze the relationship between responsible leadership and OCBE. Hierarchical regression analyses and structural equation modeling was adopted to analyze the data. Findings The authors found that the felt obligation for constructive change plays a fully mediating role between responsible leadership and OCBE. The authors also found a positive interaction between responsible leadership and supervisor-subordinate guanxi on felt obligation for constructive change, and then the indirect effect of responsible leadership on OCBE via felt obligation for constructive change was stronger when employees perceived a high-level supervisor-subordinate guanxi. Research limitations/implications When responsible leadership stimulates employees to generate a high sense of constructive change, employees are more likely to engage in OCBE. This study provides evidence for cognitive evaluation theory. This study further demonstrated the importance of establishing high-quality supervisor-subordinate guanxi for responsible leaders and subordinates in China. Practical implications In the management practice of the organization, the role of responsible leadership should be strengthened in terms of leadership development and, employee training and promotion, and high-quality supervisor-subordinate guanxi help to promote the effectiveness of responsible leadership. Originality/value This paper discusses how and when responsible leadership influences OCBE in a China corporate environment.
A Novel System for Face Recognition to Identify Occlusions and Restoration of Image

Face recognition system has emerged as an important field in case of surveillance systems. Since three dimensional imaging systems have reached a notable growth, we consider 3D image for face recognition. Occlusions(extraneous objects that hinder face recognition e.g., scarf, glass, beard etc.,) are one of the greatest challenges in face recognition systems. Other issues are illumination, pose, scale etc., Aninnovative three dimensional occlusion detection and restoration strategy for the recognition of three dimensional faces partially occluded by unforeseen objects is presented. One of the main motivations of 3D face recognition is to overcome the problems in 2D recognition methods resulting from illumination, expression or pose variations. An efficient method is used for detection of occlusions, which specifies themissing information in the occluded face. A restoration method then eliminates occlusion and renders restored facial image. It exploits the information provided by the non-occluded part of the face to recover the original face. Restored faces are then applied to a suitable face recognition system. The proposed system will provide better accuracy to eliminate the occlusion and restoration method is independent of the face recognition method.
Optimal selection of EEG electrodes via DPSO algorithm

An experiment was designed to record the electroencephalography (EEG) when people caught the vision of different directional moving (turning right, turning left, moving forward, moving backward). The EEG signals were obtained from 30 EEG electrode sites. The tagged permutations of EEG electrode sites were obtained and a discrete space was formed by the tags. DPSO algorithm was used to search the optimal permutation of electrode sites through the discrete space. Based on the optimal permutation of EEG electrode sites, the features were obtained. This method was compared with F-score (another electrode sites selecting method). The result shows that the DPSO selecting method is obviously better than F-score.
Hanin
 : Nostalgia among Syrian refugees

Forced displacement entails disruption, loss, and mourning (Kinzie, 1988; Kinzie et al., 1990; Weisaeth & Eitinger, 1993), with damaging psychological aftereffects extending far beyond the precipitating traumatic event (Porter & Haslam, 2005). In their new environment, refugees often encounter loss of social support, socioeconomic hardship, a foreign language, unfamiliar customs and norms, as well as stereotyping, prejudice, and discrimination (Berry & Kalin, 1995; Eisenbruch, 1991; Ward & Leong, 2006). These challenges produce acculturative stress (Berry, 1970), which is manifested in negative mood, loneliness, anxiety, and depression. How can refugees main‐ tain equanimity in the face of such hardship? In this article, we examine the potential benefits of nostalgia, “a sentimental longing or wistful affection for the past” (The New Oxford Dictionary of English, 1998, p. 1266), for refugees’ psycho‐ logical functioning. Immigrants and refugees frequently experi‐ ence nostalgia for their place of origin and the life they left behind (Keyes & Kane, 2004; Khalili, 2004; Knudsen, 2017; Ritivoi, 2002; Taylor, 2013; Volkan, 1999). This points to the substantive role of this emotion in maintaining contact with the past, coping with cur‐ rent stressors, and planning for the future (Sedikides, Wildschut, Routledge, Arndt, & Zhou, 2009; Zou, Wildschut, Cable, & Sedikides, 2018). Yet, from a different viewpoint, researchers have argued that nostalgia is self‐defeating and maladaptive when it highlights a contrast between felicitous past circumstances and present pre‐ dicaments (Iyer & Jetten, 2011). This constraint on nostalgia's pallia‐ tive capacity should be particularly relevant in the context of forced displacement (Beiser, 2004). Our first objective, therefore, was to assess the merits of these diverging perspectives among Syrian ref‐ ugees who fled to Saudi Arabia to escape their country's civil war. Studying this population affords a strong test of the boundaries of nostalgia's functionality. Our second objective was to investigate the role of dispositional resilience, the capacity to withstand and recover from adversity (Rutter, 1987). Resilient individuals can sustain positive emotions when faced with adversity (Ong, Bergeman, Bisconti, & Wallace, 2006; Tugade & Fredrickson, 2004), and autobiographical memory plays a pivotal role in this process (Philippe, Lecours, & Beaulieu‐ Pelletier, 2009). Specifically, Philippe et al. demonstrated that Received: 9 October 2018 | Accepted: 8 April 2019 DOI: 10.1002/ejsp.2590
Integral Input-to-State Stability of Discrete-Time Cascade Systems

In this paper, some integral input-to-state stability (iISS) results for discrete time cascade systems are presented. Firstly, the definition of iISS for discrete time systems is provided. By using the Lyapunov function method, we give the sufficient conditions on iISS of discrete time cascade systems. Especially, for linear discrete time cascade systems, the sufficient conditions on iISS are provided. Finally, corresponding examples are provided to illustrate the effectiveness of our results.
The European Bioinformatics Institute’s data resources 2014

Molecular Biology has been at the heart of the ‘big data’ revolution from its very beginning, and the need for access to biological data is a common thread running from the 1965 publication of Dayhoff’s ‘Atlas of Protein Sequence and Structure’ through the Human Genome Project in the late 1990s and early 2000s to today’s population-scale sequencing initiatives. The European Bioinformatics Institute (EMBL-EBI; http://www.ebi.ac.uk) is one of three organizations worldwide that provides free access to comprehensive, integrated molecular data sets. Here, we summarize the principles underpinning the development of these public resources and provide an overview of EMBL-EBI’s database collection to complement the reviews of individual databases provided elsewhere in this issue.