Miracle-dz/UniFAR-FTUs huggingface dataset:
Application of HPMR in Parallel Matrix Computation

In order to solve the problems of difficulty and low efficiency in traditional parallel programming,this paper presents a parallel programming method based on MapReduce model,realizes matrix parallel LU decomposition under High Performance MapReduce(HPMR) platform.Experimental result shows that the parallel programs implemented via the MapReduce model can meet the need of high-performance numerical computing,and its programming simplicity and readability to enhance the efficiency of parallel programming compared with traditional parallel programming models.
Patterns in object-oriented analysis

Analysis patterns have recently shown their great potential to enhance the set-up of models in object-oriented analysis. This report attempts to summarise the present state of literature on the subject of analysis patterns. It is organised in two main parts. In the first part, we present a comprehensive overview of the existing literature considering about one hundred mostly English written contributions. In the second part, we address some fundamental methodological issues related to both the creation and the application of analysis patterns. We study pattern documentation and organisation – e.g. in pattern catalogues – as important factors which the successful re-use of analysis patterns depends on. Furthermore, we consider and generalise numerous existing approaches to the application of analysis patterns. We show that all these procedures can be subsumed under two methods that are described in a formal fashion. Within the first method, patterns are integrated in the analysis model from the very first, whereas in the second method patterns are integrated only after a complete model has been established. Since the first method is of particular interest, it is illustrated by means of a substantial and nontrivial example. We also give special attention to the issue of traceability of patterns incorporated in a model, and we describe a promising approach from recent literature in detail.
A DYNAMIC PROGRAMMING NEURAL NETWORK FOR LARGE SCALE OPTIMIZATION PROBLEMS

To overcome the difficulties existing in the conventional numerical methods,a novel neural network (LDPNN) for solving large scale dynamic programming problems is developed in the paper.The dimension of the neural network is reduced greatly by imbedding the dynamic equations of the subsystems into the corresponding local optimization networks.Moreover,the coordination and local optimization are carried out simultaneously.Therefore,the LDPNN not only has concise and compact structure,but also has high efficiency for problem solving.An demonstrative example shows that the LDPNN is suitable for real time optimization of large scale systems.
Mixed-method evaluation of an online motivational interviewing intervention as a potential adjunct to internet-delivered cognitive behaviour therapy: immediate benefits and user feedback

While Internet-delivered cognitive behaviour therapy (ICBT) can effectively reduce anxiety and depression, not all clients benefit equally from treatment. Motivational Interviewing (MI) can result in behaviour change and, coupled with face-to-face therapy, can lead to enhanced outcomes; however, little research has examined MI as an adjunct to ICBT. The aim of the current study was to evaluate user feedback on a newly developed online MI intervention and to explore the immediate impact of the MI lesson on motivation for change. Two samples of participants, one with ICBT experience (n = 21) and one without ICBT experience (n = 20), reviewed and evaluated the online MI intervention. Pre and post lesson participants rated their motivation. Following MI, both samples of participants reported a statistically significant increase in ability to reduce symptoms (p < .0001) and an increase that approached statistical significance in perceived importance of reducing symptoms (p < .052). Furthermore, after completing the MI intervention, participants reported increased confidence in recommending the lesson to a friend (p < .002) and increased belief that the lesson would be successful in helping someone to prepare for ICBT (p < .0001). Examination of ratings of the MI intervention and open-ended comments were positive, although participants made recommendations for expanding the exercises or content to assist with self-reflection. The current research provides evidence for the face validity of the MI intervention and sets the foundation for research on MI as a potential adjunct to ICBT for improving motivation prior to active treatment.
Penerapan Intrusion Detection System (IDS) dengan metode Deteksi Port Scanning pada Jaringan Komputer di Politeknik Negeri Semarang

Keamanan jaringan komputer merupakan isu yang sangat penting, seiring dengan pentingnya informasi yang terkandung pada jaringan. Port scanning merupakan langkah awal serangan terhadap jaringan komputer. Dari keberhasilan melakukan port scanning , penyerang dapat melanjutkan serangan lanjutan ke jaringan komputer. Penelitian ini bertujuan menciptakan sistem keamanan jaringan komputer yang ringan, berbasis open source , mudah diatur dan dianalisis oleh administrator jaringan. Sistem dirancang menggunakan portsentry sebagai Intrusion Detection System (IDS) yang diintegrasikan dengan syslog-notify sebagai alert . Sistem akan memblokir alamat Internet Protocol (IP) yang diketahui melakukan aktivitas port scanning . Dari penelitian ini diketahui bahwa portsentry efektif dalam menangkal serangan port scanning namun tidak mampu memblokir serangan jenis sniffer , IP spoofing dan Denial of Service (DoS) karena bersifat tersembunyi dan tidak dianggap sebagai tindakan berbahaya. Untuk mengantisipasi serangan jenis ini, portsentry perlu dikombinasikan dengan tool pengaman lain misalnya firewall dan antivirus.
Facts Hiding throughout Audio Video Interleave (AVC) files utilizing Multivariate Regression along with Versatile Macro obstruct Getting

This H. 264/AVC normal provides several brand-new fall variable peculiarities for you to allow the actual reliable sign of compacted feature motions more than lossy bundle systems. Versatile Macro block Getting (VMG) is a standout amongst the nearly all intriguing powerful peculiarities inside the H. 264/AVC normal. Dissimilar for you to previous principles, by which pieces ended up designed beyond sequential raster verify macro blocks, VMG advises brand-new pieces made from spatially appropriated Macro blocks (MBs), as well as sorted out there inside a stirred upward fashion. H. 264/AVC highlights eight kinds of VMG. The conventional characterizes furthermore the unequivocal VMG (Type 6), which in turn enables specifically process of the MB inside the covering for you to just about any available reduce parties. Consequently brand-new VMG forms may be used as well as integrated directly into H264/AVC with no overlooking the normal. In this particular cardstock all of us offer an additional sometimes shocking Chessboard-Wipe (SCW) Variable Macro blocks Getting (VMG) approach, which in turn bests all other VMG forms. This brand-new ECW looking for results in compelling blunder dissipating which in turn augments the quality of precisely obtained macro blocks inserted all-around debased macro blocks, motivating superior error cover. Setup assessments present the offered sometimes shocking VMG method bests all of the VMG forms. Both equally summary as well as concentrate on image good quality related examine has become also accomplished bearing in mind the end purpose for you to agree to the actual offered method.
Large lectures are hard: an exploration in meaningful social visualizations for large group communication

Large lectures are a difficult and complicated area of exploration, both technologically and socially. Here is presented a discussion of existing areas of investigation related to large lectures, including fostering crowd engagement, backchannel communication, and various classroom communication technologies. Next, work is reviewed regarding a system for real-time classroom interaction, the Fragmented Social Mirror (FSM), as well as the results that were seen with the FSM in a pilot study. The design of a continuance of the first FSM study is then presented, an interview study designed to elicit feedback from instructors regarding classroom communication technology. Preliminary results from this interview study are presented with commentary and suggestions for future directions.
The Influence of Maturity Status on Jumping Performance of Inner London Secondary School Students

Talent Detection (TDE) is a method for the identification of potentially talented athletes establishing the physical ability of an athlete without the presence of sport specific skill. TDE typically uses assessments that identify physical characteristics inherent with the given sport, with ambitions to find those with superior physical ability. These protocols are traditionally aimed at set chronological ages, as low as ten years old. However, it has been established that youths will enter the adolescent process at different ages, and will go through the process at different rates. Therefore we know that it is possible to have a selection of athletes of the exact same chronological age, with as much as a few years difference in biological age (from the onset of puberty). Maturation of athletes has been explored and a selection of non-invasive methods has been established as valid protocols for biological age assessment. This research looked to establish relationships between maturity and jumping performances across the vertical (VJ) and horizontal (HJ) jumps, both highly used assessments within TDE. 72 girls and 65 boys were assessed for maturity and performance of jumps were taken using a jump mat for VJ and a tape measure for HJ. The results concluded a strong relationship with maturity and VJ and HJ in the boys, and a very strong relationship with peak power in both VJ and HJ in the boys and girls. The limitations of this study surround the dependency on adjustment equations due to the equipment used, and the use of the prediction equation for maturity. However there is strong evidence that suggests biological age should be considered when undergoing assessments as used within TDE, to allow for fair comparison across athletes of the same chronological age, and further research needs to be done overcoming the limitations of this study.
RESOLUTION IN PHOTOVOLTAIC POTENTIAL COMPUTATION

In this paper, an analysis of the effect of the various types of resolution involved in photovoltaic potential computation is presented. To calculate solar energy incident on a surface, shadow from surrounding buildings has been considered. The incident energy on a surface has been calculated taking the orientation, tilt and position into consideration. Different sky visibility map has been created for direct and diffuse radiation and only the effect of resolution of the factors has been explored here. The following four resolutions are considered: 1. temporal resolution (1, 10, 60 minutes time interval for calculating visibility of sun), 2. object surface resolution (0.01, 0.1, 0.375, 0.75, 1.25, 2.5 and 5 m2 as maximum triangle size of a surface to be considered), 3. blocking obstacle resolution (number of triangles from LoD1, LoD2, or LoD3 CityGML building models), and 4. sky resolution (ranging from 150 to 600 sky-patches used to divide the sky-dome). Higher resolutions result in general in more precise estimation of the photovoltaic potential, but also the computation time is increasing, especially as realizes that this computation has to be done for every building with its object surface (both roofs and facades). This paper is the first in depth analysis ever of the effect of resolution and will help to configure the proper settings for effective photovoltaic potential computations.
Metrical structure and sung rhythm of the Hausa rajaz

Abstract:The rajaz meter of Hausa is based on syllable quantity. In its dimeter form, it deploys lines consisting of two metra, each usually containing six moras. A variety of metra occur, and the key analytic challenge is to single out the legal metra from the set of logically possible ones. We propose an analysis, framed in maximum entropy optimality theory, that does this and also accounts for the statistical distribution of metron types, varying from poem to poem, within the line and stanza. We demonstrate a law of comparative frequency for rajaz and show how it emerges naturally in the maxent framework when competing candidates are in a relationship of harmonic bounding.Turning to how the verse is sung, we observe that rajaz verse rhythm is typically remapped onto a distinct sung rhythm. We consider grammatical architectures that can characterize this remapping. Lastly, we develop a maxent phonetic grammar to predict the durations of the sung syllables. Our constraints simultaneously invoke all levels of structure: the syllables and moras of the phonology, the grids used for poetic scansion, and the grids used for sung rhythm.
Potential Threats of Information Disclosure in Social Media: a Systematic Literature Review

Along with the growth of social media, a variety of potential threats to users is also increasing. These kinds of threats often occur because the users accidentally or unknowingly disclose their information or identity on social media. Threats resulted from the disclosure of information are needed to be known so that the users can understand the risks that arise and take precautions. This research was aimed to summarize the potential threats arising from the information disclosure in social media. The research method used was a systematic literature review to explore and summarize the literatures that discuss the specific topic. The research results show that the potential threats are mostly social threats and identity theft.
Collaborative Analysis of Cybersecurity Information Sharing

As the complexity and number of cybersecurity incidents are growing, the traditional security measures are not enough to defend against attackers. In this situation, cyber threat intelligence substantially improves the detection and prevention of sophisticated attacks by providing a comprehensive knowledge about a threat which includes indicators, implications, and actionable advice. One of the key factors of threat intelligence is cybersecurity information sharing, allowing organizations to detect and prevent malicious behaviors proactively. Due to the importance of cybersecurity information sharing, governmental laws/initiatives have been legislated to mandate/encourage the governmental and private organizations to share their cybersecurity information. However, stimulating organizations to participate and deterring free-riding in such sharing is a big challenge. To this end, the cybersecurity information sharing framework should be equipped with a sound and fair rewarding and participation-fee allocation mechanisms to encourage sharing behavior. Furthermore, as the cybersecurity information conveys sensitive and private data, the sharing platform should protect the underlying sensitive information. In this research, we propose mechanisms and protocols to improve the cybersecurity information sharing platform. Although many research studies have been done to model the development of cybersecurity information sharing frameworks as a non-cooperative game, this problem has not been studied with the cooperative game theoretic approach. We analyze the cybersecurity information sharing with the cooperative game theoretic approach. Moreover, we apply cyber-insurance to motivate organizations toward cybersecurity collaboration. First, we review prior efforts in the domain of cybersecurity information sharing and cyber-insurance. Then we study the privacy challenges for cybersecurity information sharing platform and we propose a set of protocols to protect the underlying sensitive information. Afterward, we study the design of mechanisms to motivate organizations toward cybersecurity collaboration. We propose a set of new mechanisms to leverage cyber-insurance to strengthen the cybersecurity collaboration to reach the socially optimal point while satisfying mechanism design requirements.
State-of-the-art Virtualization Security in Cloud Computing ⋆

Cloud computing is an active and prosperous field of computer science, both academically and industrially. Meanwhile, security is one of major concerns that may prevent the wide acceptance of cloud computing. In particular, as the key technique behind cloud computing, virtualization may be vulnerable to many attacks. In this paper, we review and classify the state-of-the-art virtual machine security techniques according to their roles in the virtual machine architecture, i.e., at the hardware level, as the hypervisor and inside the virtual machines. Finally, we discuss additional problems that remain to be addressed.
El impuesto diferido como indicador de persistencia de resultados en las empresas cotizadas españolas

The deferred tax method for income tax accounting recognition has been analized from different perspectives. The literature links it with quality and characteristics of results, the market use of this or the consideration as a manipulation indicator. The purpose of this paper is to examine if “book-tax differences” are usuful for predicting future results, in Spanish companies for 2007-2015. The equation considers the results of t+1 period as dependent of t period results and added the deferred tax as an independent variable. The sample was used completely and divided between observations with positives and negatives results. The temporary differences were classified too. The results show that temporary differences are an important indicator of the persistence of results in Spanish listed companies with positive results for the periods reviewed. The results are even more decisive if only the positive temporary differences are considered.
Education and emancipation, educational policies and «de-emancipation»: A history of the Nigerian education system from 1914 to 2014

Nigeria as a nation came into being in the year 1914 through the amalgamation of the Southern and Northern Protectorates by Sir Frederick Lugard. After this amalgamation, and prior to independence, there was no education policy clearly defined by the colonial government; instead, several educational ordinances were promulgated. However, the 1920 Phelps-Stokes Commission awakened the colonial government to the need for improvement. The 1951 regionalisation of education laws that later emerged and their implementation also focused on mass literacy and theoretical education. The exposure to higher education by few Nigerians, however, led to the agitation for independence, which was eventually granted on October 1, 1960. The independence invested Nigerians with the right to take their destiny into their own hands, including the formulation of education policies for the total emancipation of the citizenry. Hence, the 6-3-3-4 system emerged, and the first National Policy on Education (NPE) was officially published in 1977. Unfortunately, the lack of proper implementation of these education policies has continued to «de-emancipate» the citizens of Nigeria. Although the present administration is encouraging patronage of ‘Made in Nigeria’ goods, much still needs to be done to improve education policies, especially in the conceptual framework of functional education. This research is historical, and a historical method was therefore adopted, using both primary and secondary sources of information. Several recommendations are made, including that there is the need for a total overhaul of the Nigeria education system to accommodate effective implementation of policies and monitoring mechanisms for more dynamic and functional education.
Delegation Principle for Multi-agency Games under Ex Post Equilibrium

We explore the strategic equivalence of the delegated menu contracting procedure in pure-strategy multi-agency games under ex post equilibrium. Our model setup permits "full-blown interdependence," including information externality, contract externality, correlated types, and primitive constraints across the contracts for different agents. Our delegation principle identifies that (optimal) ex post menu design is strategically equivalent to (optimal) bilateral ex post mechanism design, which simplifies collective ex post mechanism design by ignoring relative information evaluation. Moreover, one can restrict attention to product menu design problems out of general menu design problems if the contract constraint sets have product structures. Our results still hold if we include individual rationality or any degenerated form of "full-blown interdependence. "
Behavioral and Neural Correlates of Cognitive-Motor Interference during Multitasking in Young and Old Adults

The concurrent performance of cognitive and postural tasks is particularly impaired in old adults and associated with an increased risk of falls. Biological aging of the cognitive and postural control system appears to be responsible for increased cognitive-motor interference effects. We examined neural and behavioral markers of motor-cognitive dual-task performance in young and old adults performing spatial one-back working memory single and dual tasks during semitandem stance. On the neural level, we used EEG to test for age-related modulations in the frequency domain related to cognitive-postural task load. Twenty-eight healthy young and 30 old adults participated in this study. The tasks included a postural single task, a cognitive-postural dual task, and a cognitive-postural triple task (cognitive dual-task with postural demands). Postural sway (i.e., total center of pressure displacements) was recorded in semistance position on an unstable surface that was placed on top of a force plate while performing cognitive tasks. Neural activation was recorded using a 64-channel mobile EEG system. EEG frequencies were attenuated by the baseline postural single-task condition and demarcated in nine Regions-of-Interest (ROIs), i.e., anterior, central, posterior, over the cortical midline, and both hemispheres. Our findings revealed impaired cognitive dual-task performance in old compared to young participants in the form of significantly lower cognitive performance in the triple-task condition. Furthermore, old adults compared with young adults showed significantly larger postural sway, especially in cognitive-postural task conditions. With respect to EEG frequencies, young compared to old participants showed significantly lower alpha-band activity in cognitive-cognitive-postural triple-task conditions compared with cognitive-postural dual tasks. In addition, with increasing task difficulty, we observed synchronized theta and delta frequencies, irrespective of age. Task-dependent alterations of the alpha frequency band were most pronounced over frontal and central ROIs, while alterations of the theta and delta frequency bands were found in frontal, central, and posterior ROIs. Theta and delta synchronization exhibited a decrease from anterior to posterior regions. For old adults, task difficulty was reflected by theta synchronization in the posterior ROI. For young adults, it was reflected by alpha desynchronization in bilateral anterior ROIs. In addition, we could not identify any effects of task difficulty and age on the beta frequency band. Our results shed light on age-related cognitive and postural declines and how they interact. Modulated alpha frequencies during high cognitive-postural task demands in young but not old adults might be reflective of a constrained neural adaptive potential in old adults. Future studies are needed to elucidate associations between the identified age-related performance decrements with task difficulty and changes in brain activity.