Miracle-dz/UniFAR-FTUs huggingface dataset:
A proposal for securing a large-scale high-interaction honeypot

This paper presents the design of a secured high-interaction honeypot. The challenge is to have a honeypot that welcomes attackers, allows userland malicious activities but prevents from system corruption. The honeypot must be scalable to authorize a large amount of malicious activities and to analyze those activities efficiently. The hardening of the honeypot is proposed for two kinds of host. The first class prevents system corruption and has never to be reinstalled. The second class assumes system corruptions but easy reinstallation is available. A first cluster enables to deploy a wide range of honeypots and security sensors. A second cluster provides an efficient auditing facility. The solution is totally based on open source software and has been validated during one year. A statistical analysis shows the efficiency of the different sensors. Origin and destination of attacks are given. Moreover, the complementarities of the sensors are discussed. Ongoing works focus on recognition of complex malicious activities using a correlation grid.
A Low Complexity Loglikelihood Ratio Scheme in Coded Multiple-Input Multiple-Output Systems

The higher data rate in coded MIMO systems needs higher performance and lower computational complexity. This paper proposes a method to improve the performance and reduce the computational complexity in coded MIMO system, such as IEEE 802.11ac. The proposed scheme based on log likelihood ratio with QRM-MLD (QRM-MLD-LLR) needs to expand the estimated channel matrix H by MMSE scheme firstly, and use the partial constellations set S to replace the all constellations set C to reduce the computational complexity by the MMSE-SIC method secondly. Simulation results show that the proposed scheme with expanding H by MMSE can obtain better performance than non-expanding H, the proposed scheme can reduce more than 70% computational complexity but keep only 0.5dB performance loss.
The Adjustment of Prices and the Adjustment of the Exchange Rate

The purchasing power parity puzzle relates to the adjustment of real exchange rates. Real exchange rates are extremely volatile, suggesting that temporary shocks emanate from the monetary sector. But the half-life of real exchange rate deviations is extremely large -- 2.5 to 5 years. This half-life seems too large to be explained by the slow adjustment of nominal prices. We offer a different interpretation. We maintain that nominal exchange rates and prices need not converge at the same rate, as is implicit in rational-expectations sticky-price models of the exchange rate. Evidence from an unobserved components model for nominal prices and nominal exchange rates that imposes relative purchasing power parity in the long run indicates that nominal exchange rates converge much more slowly than nominal prices. The real puzzle is why nominal exchange rates converge so slowly.
Tarja Kauppi Performance analysis at the software architectural level

This work gives an overview of performance analysis at the software architectural level and methods available for that purpose. Architectural level analysis means analysing the quality of the software in the early development phase based on software architectural designs and estimated timing information. The basic idea related to performance analysis methods is to derive a performance model based on software architecture, which can be analysed and feedback about the performance of the planned software is obtained. The goal of this work was to analyse the performance of the part of a mobile phone software that is executed on the Symbian operating system during concurrent streaming and multimedia message reception. It was analysed by applying the PASA method, but as a deviation from the method LQN was used for performance modelling. The analysis was conducted mainly by calculating utilisation, residence time and queue length based on the LQN model and estimated execution times. The calculated values were compared to performance objectives and then it was concluded that if the execution times were as estimated in this work then performance objectives would be met on average, but in the worst-case condition performance problems could occur. It was proposed in this work to change the priorities of the related tasks according to RMA principles. Then the deadlines would be met even in the worst-case. In this work performance was analysed only from the processor point of view, so the effect that other hardware resources (such as memory or buses) have on performance was not considered.
The Effectiveness of Emotionally Focused Couples Therapy With Veterans With PTSD: A Pilot Study

ABSTRACT The current study is a pilot project conducted at Baltimore VA Medical Center investigating the use of emotionally focused couples therapy (EFT) for couples in which one partner is a veteran who has been diagnosed with posttraumatic stress disorder (PTSD). Fifteen couples enrolled in the study and seven of these couples completed treatment (26 to 36 weekly sessions of EFT). Both partners were assessed on measures of relationship satisfaction, psychological distress, depression, and quality of life, and veterans were assessed on measures of PTSD symptoms at baseline and 2 weeks after the intervention. Paired t-tests were used to compare scores before and after EFT. In terms of results, the veterans' partners reported significant improvements in relationship and life satisfaction and in decreased depression and a decrease in psychological distress. Veterans demonstrated a significant decrease in self-reported symptoms of PTSD. These results provide preliminary evidence for the usefulness of EFT to help foster improved relationship satisfaction, and psychological well-being for veterans with PTSD and their partners who completed treatment.
Retinol-binding protein stability in dried blood spots.

BACKGROUND Retinol-binding protein (RBP) is accepted as a surrogate biochemical marker for retinol to determine vitamin A (VA) status. A recently developed enzyme immunoassay for RBP uses serum or whole blood stored as dried blood spots (DBS). However, the stability of RBP in DBS has not been examined. METHODS RBP stability was studied in a laboratory and in field conditions in northern Kenya. For the laboratory study, 63 DBS collected by finger prick and stored sealed in a plastic bag with desiccant were exposed to 1 of 5 time/storage-temperature treatments: (a) baseline, (b) 30 degrees C/7 days, (c) 30 degrees C/14 days, (d) 30 degrees C/28 days, and (e) 4 degrees C/38 days. Baseline RBP concentrations were compared to those obtained after the storage treatments. For the field study, 50 paired DBS and serum specimens were prepared from venous blood obtained in northern Kenya. DBS were stored in a sealed plastic bag with desiccant at ambient temperature (12 degrees C-28 degrees C) for 13-42 days, and sera were stored at -20 degrees C to -70 degrees C. Recovered RBP concentrations were compared with serum retinol for stability, correlation, sensitivity, and specificity. RESULTS RBP in DBS stored in the laboratory at 30 degrees C remained stable for 2-4 weeks, but specimens stored at 4 degrees C for 38 days produced values below baseline (P = 0.001). DBS stored under field conditions remained stable for 2-6 weeks, as demonstrated by good correlation with serum retinol, a result that suggests that RBP in DBS will have good sensitivity and specificity for predicting VA deficiency. CONCLUSION RBP in DBS can withstand storage at a relatively high ambient temperature and thus facilitate accurate VA assessments in populations in locations where serum collection and storage are unfeasible.
The bifurcation structure and noise induced transitions in the Pleistocene glacial cycles

The glacial cycles are attributed to the climatic response of the orbital changes in the irradiance to the Earth. These changes in the forcing are to small to explain the observed climate variations as simple linear responses. Non-linear amplifications are necessary to account for the glacial cycles. Here an empirical model of the non-linear response is presented. From the model it is possible to assess the role of stochastic noise in comparison to the deterministic orbital forcing of the ice ages. The model is based on the bifurcation structure derived from the climate history. It indicates the dynamical origin of the Mid-Pleistocene transition (MPT) from the '41 kyr world' to the '100 kyr world'. The dominant forcing in the latter is still the 41 kyr obliquity cycle, but the bifurcation structure of the climate system is changed. The model indicates that transitions between glacial and interglacial climate are assisted by internal stochastic noise in the period prior to the last five glacial cycles, while the last five cycles are deterministic responses to the orbital forcing.
Watertight Surface Reconstruction for Uncertain Data Watertight Surface Reconstruction for Uncertain Data Eingereichte Masterarbeit Von

In your final hardback copy, replace this page with the signed exercise sheet. Abstract For simple pick and place tasks, a robot needs to be able to recognise objects. In order to avoid scanning all objects by hand, an automatic modelling approach is necessary. Considering space and price restrictions on a robotic platform, the quality of perceiving devices suffers from this restrictions. Consequently modelling approaches need to cope with pose errors and noisy data that usually result in displaced surfaces incorporating a lot of artefacts. In this work, we focus on creating a watertight surface representation that is automatically built by a robot. Therefore, we develop a next best viewpoint planning method that fits to an afterwards applied filtering stage for improving measurement confidence. Using the resulting data, a mesh growing approach reconstructs the surface of the to be scanned object incorporating an inflating and a detailing stage. Our approach is able to roughly estimate the objects surfaces using inaccurate hardware and even to reconstruct small details for precise laser scanning devices. Small areas that are not scanned can be filled and highlighted by utilizing the near neighbourhood of measurements. benutzt werden.
onetary stability and the rule of law

This paper investigates the relationship between the functioning of money and the rule of law. We explore the claim that monetary stability is a necessary condition for the rule of law to operate and that periods of rapid inflation and deflation stemming from monetary instability erode and undermine the rule of law. We support our argument with panel data evidence and four detailed case studies from the Roman empire, the Weimar Republic, the Great Depression and the Great Recession. Our conclusions examine what monetary institutions are most conducive to maintaining monetary stability and the rule of law. © 2014 Elsevier B.V. All rights reserved.
An all-digital PLL with a first order noise shaping Time-to-Digital Converter

This paper presents an All Digital PLL (ADPLL) based on a first order noise shaping Time-to-Digital Converter (TDC). The architectures of two state-of-art ADPLLs and a state-of-art Gated Ring Oscillator (GRO) TDC are described. The architecture of the GRO TDC is compared with that of the proposed Local Oscillator based TDC (LO TDC) in terms of spectral performance. Behavioral Verilog-AMS models of the LO, exact LO, and exact GRO TDCs are described briefly. Finally, the Verilog-AMS models of three ADPLLs, including the TDC models, are compared by means of simulations.
A decentralized negative sequence compensation method for islanded mirogrids

Single phase loads, which constitute the majority of low voltage consumers, give rise to unbalanced load currents in microgrids. As a consequence the voltage unbalance might rise beyond the permissible range. The voltage unbalance can be reduced by injecting a negative sequence (NS) compensation signal into the DERs reference voltage. However, such compensation might cause circulating currents between the DERs and also excessive current in the heavily loaded phases of some DERs. In this paper, a novel NS compensation method is proposed to reduce the circulating currents and eliminate the excess current in inverter-based microgrids. In this method, the NS voltages of the DERs are adjusted according to again scheduled NS droop method. The compensating signal is then computed by solving an optimization problem, which aims at tracking the NS voltage with minimum compensating action. Simulation results are proposed to verify the efficacy of the method.
Variable-Radius Circles in Cluster Merging Part II : Rotational Clusters

Variable-radius circles are common constructs in planar constraint solving. We give a complete treatment of variable-radius circles when such circles must be determined simultaneously with placing two groups of geometric entities. Part I sets up the problem statement and considers clusters where the relative motion is translational. It also reviews past work on the subject. Part II treats rotational clusters motion.
Learning where to look with movement-based intrinsic motivations: A bio-inspired model

Most sophisticated mammals, in particular primates, interact with the world to acquire knowledge and skills later exploitable to obtain biologically relevant resources. These interactions are driven by intrinsic motivations. Recent research on brain is revealing the system of neural structures, pivoting on superior colliculus, underlying trial-and-error learning processes guided by movement-detection, one important element of one specific type of intrinsic motivation mechanism. Here we present a preliminary computational model of such system guiding the acquisition of overt attentional skills. The model is formed by bottom-up attentional components, exploiting the intrinsic properties of the scene, and top-down attentional components, learning under the guidance of movement-based intrinsic motivation. The model is tested with a simple task, inspired by the `gaze-contingency paradigm' proposed in cognitive psychology, where looking some portions of the environment can directly change it. The tests of the model show how its integrated components can learn skills causing relevant changes in the environment while ignoring changes non-contingent to own action. The model also allows the presentation of a wider research agenda directed to build biologically plausible models of the interaction between overt attention control and intrinsic motivations.
Visualizing Student Data in a Real Teaching Context by Means of Concept Maps

This paper describes the process followed for visualizing, using DynMap, the student’s evolution through the learning process in a Computer Security course at the University. DynMap is a system based on Concept Maps developed with the aim of providing the education community with a tool that facilitates the inspection student data. After a brief introduction, the paper describes the problem to face up. Then, the main characteristics, functionality and components of DynMap are described. Next, the summary of two studies conducted to validate DynMap are presented. Finally, some conclusions and the future perspective are pointed out.
Optimizing Faculty Use of Writing as a Learning Tool in Geoscience Education

As geoscience educators, we focus on helping students understand technical content and learn to think like geoscientists. Although research substantiates writing as a tool for teaching technical content and disciplinary thinking, geoscience educators often do not integrate writing in geoscience education because of the frustrations and exigencies involved. To address these issues, this paper describes the literature on using writing as a learning tool in both cross-disciplinary and geoscience teaching contexts. Further, we describe our Less is More approach, designed so faculty can spend less time grading student writing and still yield more learning benefits from incorporating writing. This approach involves five strategies, including explicitly integrating assignments with course objectives, designing effective assignments, incorporating process writing, evaluating writing effectively and efficiently, and consulting appropriate campus resources. Results of an initial assessment using this approach with a geoscience course suggest gains in student learning.
A 10-GS/s track-and-hold circuit for a 7-bit Square Kilometre Array ADC in 65-nm

The design and measurement of a broadband 10-GS/s 65-nm CMOS track-and-hold (T/H) circuit are discussed. The measured 3-dB bandwidth of the T/H circuit is 4.5 GHz with a DC gain of −1 dB, a spurious-free dynamic range (SFDR) of >41 dB and a total harmonic distortion (THD) of >40 dBc up to Nyquist when sampling at a 10-GS/s rate. The measured power consumption of the core circuit is 142 mW from a 1.3-V supply. This T/H circuit is designed to operate with an input voltage range of 0.3 Vpp.
The Meissner Corpuscle Revised: A Multiafferented Mechanoreceptor with Nociceptor Immunochemical Properties

Meissner corpuscles (MCs) in the glabrous skin of monkey digits have at least three types of innervation as revealed by immunofluorescence. The previously well known Aαβ-fiber terminals are closely intertwined with endings from peptidergic C-fibers. These intertwined endings are segregated into zones that alternate with zones containing a third type of ending supplied by nonpeptidergic C-fibers. Although MCs are widely regarded as low-threshold mechanoreceptors, all three types of innervation express immunochemical properties associated with nociception. The peptidergic C-fiber endings have readily detectable levels of immunoreactivity (IR) for calcitonin gene-related peptide (CGRP) and substance P (SP). The Aαβ endings have relatively lower levels of IR for CGRP and SP as well as the SP neurokinin 1 receptor and vanilloid-like receptor 1. Both the Aαβ and peptidergic C-fiber endings were also labeled with antibodies for different combinations of adrenergic, opioid, and purinergic receptors. The nonpeptidergic C-fiber endings express IR for vanilloid receptor 1, which has also been implicated in nociception. Thus, MCs are multiafferented receptor organs that may have nociceptive capabilities in addition to being low-threshold mechanoreceptors.
MODELING AND RESOLVING LOCK CONTENTION FOR MULTI-THREADED SYSTEMS

Locks are efficient concurrent control mechanisms to ensure that shared resources are accessed by only a single thread in multi-threaded applications. However, for multi-core systems, lock usage leads to lock contention, which degrades program performance, increases system response time, and negatively affects scalability. This paper initially models lock contention from two aspects: static structure and dynamic behavior. Static constraints of lock contention that describe the contention among threads and the dynamic constraints that define the lock request behavior during contended process are presented. In addition, a contention-aware lock (CA-Lock) is proposed. The CA-Lock is an ordinary lock when there is no contention; it improves the concurrency by transforming into software transactional memory (STM) when the contention is serious. For those situations that are not fitted with STM, the CA-Lock can transform back into an ordinary lock. Primary experimental results show that the CA-Lock can track the best world of lock or STM.
Automatic syllabus classification

Syllabi are important educational resources. However, searching for a syllabus on the Web using a generic search engine is an error-prone process and often yields too many non-relevant links. In this paper, we present a syllabus classifier to filter noise out from search results. We discuss various steps in the classification process, including class definition, training data preparation, feature selection, and classifier building using SVM and Naïve Bayes. Empirical results indicate that the best version of our method achieves a high classification accuracy, i.e., an F1 value of 83% on average.
Induced Compton Scattering in Gigahertz Peak Spectrum Radio Sources

We revisit the shocked shell model for the class of active galactic nuclei known as gigahertz peak spectrum (GPS) sources, incorporating new observational data on the radiation brightness temperatures. We argue that in addition to free-free absorption, induced Compton scattering will also have an important effect in forming the approximately gigahertz peak and in shaping the radio spectra that characterize these sources. Indeed, our arguments suggest that GPS sources may provide the first real evidence for the role of induced Compton scattering in extragalactic radio sources.
Variability inspired implementation selection problem

Given a directed acyclic graph and different possible implementations for each node, the implementation selection problem (ISP) selects the appropriate implementation for each node such that a given global design objective is optimized, ISP is a generic formulation that is explicitly or implicitly solved in several design automation problems like leakage optimization using dual V/sub th/, gate sizing, etc. An implementation of a node results in an associated delay and perhaps cost for the node. In the presence of different sources of uncertainty and fabrication variability, fixed estimates of delays and costs of a node are extremely erroneous. We investigate a probabilistic approach to solve ISP by considering probability density functions for delays and costs of a node. We propose a dynamic-programming based approach in a probabilistic sense and introduce effective pruning criteria when dealing with probability distributions for identifying co-optimal solution at each stage. A case study of leakage optimization using dual V/sub th/ is presented where we show the effectiveness of a probabilistic approach considering V/sub th/ variability over a traditional deterministic one.
LOHAI: Providing a Baseline for KOS based Automatic Indexing

Automatic KOS based indexing { i.e. indexing based on a restricted, controlled vocabulary, a thesaurus or a classication { can play an important role to close the gap between the intellectually, high quality indexed publications and the mass of unindexed publications. Especially for unknown, heterogeneous publications, like web publications, simple processes that do not rely on manually created training data are needed. With this contribution, we propose a straight-forward linguistic indexer, that can be used as a basis for own developments and for experiments and analyses to explore own documents and KOSs; it uses state-of-the- art information retrieval techniques and hence forms a suitable baseline for evaluations. Finally, it is free and open source.
Development and evaluation of Fingu: a mathematics iPad game using multi-touch interaction

We describe the design background of the mathematics game Fingu for iPad aimed at 4 to 8 year old children. We first describe how Fingu theoretically can support children's development of fundamental arithmetic skills, focusing on conceptual subitizing, the embodiment of numerosity, and finger gnosis. Then we present the results of an exploratory micro-longitudinal study of the game with 11 5- and 6-year old children playing the game for several weeks and being filmed at three occasions. We discuss how their behavior with the game develops over time and can be related to the development of arithmetic skills. Finally we discuss how we will proceed testing the effectiveness of Fingu in a larger controlled study.