scholarly journals A Hybrid Association Rule-Based Method to Detect and Classify Botnets

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Yuanyuan Huang ◽  
Lu Jiazhong ◽  
Haozhe Tang ◽  
Xiaolei Liu
Keyword(s):  
Association Rule ◽  
Detection Methods ◽  
Domain Names ◽  
The Public ◽  
Black And White ◽  
Global Correlation ◽  
White List ◽  
Feature Filtering ◽  
Public Dataset ◽  
Very High

Nowadays, botnet has become a threat in the area of cybersecurity, and, worse still, it is difficult to be detected in complex network environments. Thus, traffic analysis is adopted to detect the botnet since this kind of method is practical and effective; however, the false rate is very high. The reason is that normal traffic and botnet traffic are quite close to the border, making it so difficult to be recognized. In this paper, we propose an algorithm based on a hybrid association rule to detect and classify the botnets, which can calculate botnets’ boundary traffic features and receive effects in the identification between normal and botnet traffic ideally. First, after collecting the data of different botnets in a laboratory, we analyze botnets traffic features by processing a data mining on it. The suspicious botnet traffic is filtered through DNS protocol, black and white list, and real-time feature filtering methods. Second, we analyze the correlation between domain names and IP addresses. Combining with the advantages of the existing time-based detection methods, we do a global correlation analysis on the characteristics of botnets, to judge whether the detection objects can be botnets according to these indicators. Then, we calculate these parameters, including the support, trust, and membership functions for association rules, to determine which type of botnet it belongs to. Finally, we process the test by using the public dataset and it turns out that the accuracy of our algorithm is higher.

The Constitutional Court of South Africa: Thoughts on its 25-Year-Long Legacy of Judicial Activism

2021 ◽  
Vol 56 (1) ◽  
pp. 18-33
Author(s):  
Lucky Mathebe
Keyword(s):  
South Africa ◽  
Constitutional Court ◽  
Transformative Change ◽  
Democratic Accountability ◽  
Constitutional Democracy ◽  
The Public ◽  
Crime And Punishment ◽  
Black And White ◽  
Marginalised Groups

After almost 25 years of what could justifiably be called transformative change in South Africa, a truism is that the country’s new legal order, established by the Constitution in 1993 and 1996, provides the critical foundation of peace and security upon which its freedom has been built. The Constitutional Court was one of the most important of the new democratic institutions in the shaping of the country’s position as a constitutional democracy, upholding the values for which millions of people, black and white, had fought. This article is a brief reflection on the role of the Court in establishing the meaning of this democracy and giving it effect. The main goal of the article is to understand how the Court’s new jurisprudence works in particular contexts, how its work is related to crime and punishment, and what it means for the rights of marginalised groups in society. Using the examples of the Court’s decision in Makwanyane on the death penalty, and the Court’s decision on the findings of the Public Protector’s report on Nkandla, the article finds that the Court’s new jurisprudence takes quite a different view of legal developments in South Africa, insofar as the jurisprudence entrusts broad discretion to the Court and emphasises the need for sustained leadership of the Court to advance the battle for fundamental human rights, the rule of law, and democratic accountability.

Do Body-Worn Cameras Change Law Enforcement Arrest Behavior? A National Study of Local Police Departments

2020 ◽  
pp. 027507402098268
Author(s):  
Sunyoung Pyo
Keyword(s):  
Police Officers ◽  
National Study ◽  
Behavior Changes ◽  
Police Departments ◽  
The Public ◽  
Black And White ◽  
High Profile ◽  
Local Police ◽  
Disparate Treatment ◽  
High Crime

Controlling police officers’ discretionary behavior during public encounters has been an important issue in U.S. policing, especially following several high-profile police-involved deaths of racial minorities. In response, body-worn cameras (BWCs) were introduced to enhance police accountability by providing police managers an opportunity to monitor police–public encounters. Although many U.S. local police departments have now implemented BWC programs, evidence of program effects on daily police behavior has been limited. This study therefore focuses on whether officers’ arrest behavior changes when they perceive that BWCs are recording their interactions with the public. By conducting a difference-in-differences analysis using 142 police departments, I found that BWCs have negative and small treatment effects on arrest rates and null effects on the racial disparity between numbers of Black and White arrests. These findings imply that officers may become slightly more cautious in the use of arrests after wearing BWCs, but BWCs do not change their overall disparate treatment of Black versus White suspects. The results further indicate that the effects of BWCs on arrests are prominent in municipalities with high crime rates or a high proportion of non-White residents, which suggests that BWC programs demonstrate different effects according to the characteristics of communities served.

What the past can say about the present and future of fire

2020 ◽  
Vol 96 ◽  
pp. 66-87
Author(s):  
Jennifer R. Marlon
Keyword(s):  
Climate Change ◽  
Terrestrial Ecosystems ◽  
Combustion Products ◽  
Temperature Changes ◽  
The Public ◽  
The Past ◽  
Warming Climate ◽  
Highly Sensitive ◽  
In Fire ◽  
Very High

AbstractWildfires are an integral part of most terrestrial ecosystems. Paleofire records composed of charcoal, soot, and other combustion products deposited in lake and marine sediments, soils, and ice provide a record of the varying importance of fire over time on every continent. This study reviews paleofire research to identify lessons about the nature of fire on Earth and how its past variability is relevant to modern environmental challenges. Four lessons are identified. First, fire is highly sensitive to climate change, and specifically to temperature changes. As long as there is abundant, dry fuel, we can expect that in a warming climate, fires will continue to grow unusually large, severe, and uncontrollable in fire-prone environments. Second, a better understanding of “slow” (interannual to multidecadal) socioecological processes is essential for predicting future wildfire and carbon emissions. Third, current patterns of burning, which are very low in some areas and very high in others—are often unprecedented in the context of the Holocene. Taken together, these insights point to a fourth lesson—that current changes in wildfire dynamics provide an opportunity for paleoecologists to engage the public and help them understand the potential consequences of anthropogenic climate change.

scholarly journals Analisis Perkembangan Kasus COVID-19 Berkaitan dengan Kebijakan Pemerintah di Pulau Jawa

2021 ◽  
Vol 9 (1) ◽  
pp. 01-12
Author(s):  
Charvia Ismi Zahrani ◽  
Setia Pramana
Keyword(s):  
Local Government ◽  
Large Scale ◽  
Government Policies ◽  
High Increase ◽  
Public Places ◽  
The Public ◽  
Social Restriction ◽  
Almost All ◽  
Death Cases ◽  
Very High

AbstractCOVID-19 is a serious problem that faced by almost all countries in the world. Since announced as a pandemic by WHO on March, the number of positive COVID-19 cases in Indonesia has reached 287,008 patients until the end of September 2020. COVID-19 cases dispersion depends on the local government policies and the awareness of the public to obey. About 60 percent of positive cases and 65 percent of death cases were in Java. Therefore, the aim of this study is to analyze the growth of the COVID-19 case in Java from March to September 2020 in relation to the local government policies. The results showed that six provinces in Java had the same pattern. The large-scale social restriction (PSBB), which was implemented since April 10 2020, seen to be able to contain the dispersion of cases because from April to June the positive cases did not increase significantly. A very high increase occurred in August and September, this was probably due to the easing of the PSBB become new-normal where various public places and facilities have been reopened. Meanwhile, death cases, the number is very high in mid-April and June and late July to September 2020. For cured cases, there was a significant increase in late August to September 2020. The importance of information about the growth of the COVID-19 cases can help government to formulate strategies and policies to prevent the dispersion of COVID-19.Keyword: COVID-19, Pandemic, Java, cases growth AbstrakCOVID-19 merupakan suatu masalah serius yang sedang dihadapi oleh hampir seluruh negara. Sejak diumumkan sebagai pandemi oleh WHO pada Maret lalu, jumlah kasus positif COVID-19 di Indonesia mencapai 287.008 pasien hingga akhir September. Penyebaran kasus COVID-19 sangat bergantung pada kebijakan yang ditetapkan oleh pemerintah serta kesadaran masyarakat untuk mematuhinya. Sebesar 60 persen kasus positif dan 65 persen kasus meninggal berada di Pulau Jawa. Oleh karena itu, tujuan penelitian ini adalah menganalisis perkembangan kasus COVID-19 di Pulau Jawa sejak Bulan Maret-September 2020 dikaitkan dengan kebijakan pemerintah setempat. Hasil penelitian menunjukkan bahwa keenam provinsi memiliki pola yang sama. Pembatasan Sosial Berskala Besar (PSBB) yang dilakukan sejak 10 April 2020 terlihat dapat menahan penyebaran kasus karena pada bulan April-Juni 2020 kasus positif tidak mengalami kenaikan yang signifikan. Kenaikan yang sangat tinggi terjadi pada bulan Agustus dan September 2020, hal ini mungkin disebabkan oleh dilonggarkannya kebijakan PSBB menjadi PSBB Transisi dimana berbagai tempat dan fasilitas umum telah dibuka kembali. Sementara untuk kasus meninggal, angka tertinggi terjadi pada pertengahan April dan Juni serta akhir Juli hingga September 2020. Untuk kasus sembuh, terjadi peningkatan yang signifikan pada akhir Agustus hingga September 2020. Pentingnya informasi tentang perkembangan kasus COVID-19 ini dapat membantu pemerintah daerah untuk membuat strategi dan kebijakan untuk mencegah penyebaran rantai virus COVID-19.Kata Kunci: COVID-19, Pandemi, Jawa, perkembangan kasus 

scholarly journals Bioinformatic Modelling of SARS-CoV-2 Pandemic With a Focus on Country-Specific Dynamics

2021 ◽  
Author(s):  
Jakub Liu ◽  
Tomasz Suchocki ◽  
Joanna Szyda
Keyword(s):  
Mortality Rates ◽  
Health Care Facilities ◽  
Public Health Care ◽  
Detection Methods ◽  
The Public ◽  
Johns Hopkins University ◽  
Mixture Of Normal Distributions ◽  
The Uk ◽  
Two Peaks ◽  
Country Specific

Abstract One of the seminal events since 2019 has been the outbreak of the SARS-CoV-2 pandemic. Countries have adopted various policies to deal with it, but they also differ in their socio-geographical characteristics and in the public health care facilities. The aim of our study was to investigate differences between epidemiological parameters across countries. The analysed data represents SARS-CoV-2 repository provided by the Johns Hopkins University. Separately for each country we estimated recovery and mortality rates using the SIRD model applied to the first 30, 60, 150 and 300 days of the pandemic. Moreover, a mixture of normal distributions was fitted to the number of confirmed cases and deaths during the first 300 days. The estimates of peaks’ means and variances were used to identify countries with outlying parameters. For the period of 300 days Belgium, Cyprus, France, the Netherlands, Serbia and the UK were classified as outliers by all three outlier detection methods. Yemen was classified as an outlier for each of the four considered timeframes, due to high mortality rates. During the first 300 days of the pandemic the majority of countries underwent three peaks in the number of confirmed cases, except Australia and Kazakhstan with two peaks.

scholarly journals Improving tuberculosis surveillance by detecting international transmission using publicly available whole-genome sequencing data

2019 ◽  
Author(s):  
Andrea Sanchini ◽  
Christine Jandrasits ◽  
Julius Tembrockhaus ◽  
Thomas Andreas Kohl ◽  
Christian Utpatel ◽  
...  
Keyword(s):  
Whole Genome Sequencing ◽  
Genome Sequencing ◽  
Large Scale ◽  
Added Value ◽  
Whole Genome Sequencing Data ◽  
Whole Genome ◽  
International Transmission ◽  
The Public ◽  
Public Dataset ◽  
Public Repositories

AbstractIntroductionImproving the surveillance of tuberculosis (TB) is especially important for multidrug-resistant (MDR) and extensively drug-resistant (XDR)-TB. The large amount of publicly available whole-genome sequencing (WGS) data for TB gives us the chance to re-use data and to perform additional analysis at a large scale.AimWe assessed the usefulness of raw WGS data of global MDR/XDR-TB isolates available from public repositories to improve TB surveillance.MethodsWe extracted raw WGS data and the related metadata of Mycobacterium tuberculosis isolates available from the Sequence Read Archive. We compared this public dataset with WGS data and metadata of 131 MDR- and XDR-TB isolates from Germany in 2012-2013.ResultsWe aggregated a dataset that includes 1,081 MDR and 250 XDR isolates among which we identified 133 molecular clusters. In 16 clusters, the isolates were from at least two different countries. For example, cluster2 included 56 MDR/XDR isolates from Moldova, Georgia, and Germany. By comparing the WGS data from Germany and the public dataset, we found that 11 clusters contained at least one isolate from Germany and at least one isolate from another country. We could, therefore, connect TB cases despite missing epidemiological information.ConclusionWe demonstrated the added value of using WGS raw data from public repositories to contribute to TB surveillance. By comparing the German and the public dataset, we identified potential international transmission events. Thus, using this approach might support the interpretation of national surveillance results in an international context.

scholarly journals Honesty Pledges for the Behaviorally-based Regulation of Dishonesty

2020 ◽  
Author(s):  
Eyal Peer ◽  
Yuval Feldman
Keyword(s):  
Term Effect ◽  
Risk Averse ◽  
Behavioral Regulation ◽  
Short Term ◽  
Behavioral Ethics ◽  
The Public ◽  
Ethical Decisions ◽  
Long Run ◽  
Self Reports ◽  
Very High

A common dilemma in regulation is determining how much trust authorities can place in people’s self-reports, especially in regulatory contexts where the incentive to cheat is very high. In such contexts, regulators, who are typically risk averse, do not readily confer trust, resulting worldwide in excessive requirements when applying for permits, licenses, and the like. Studies in behavioral ethics have suggested that asking people to ex-ante pledge to behave ethically can reduce their level of dishonesty and noncompliance. However, pledges might also backfire by allowing more people to cheat with no real sanctions. Additionally, pledges’ effects have only been studied in one-shot decision making, and they may only have a short-term effect that could decay in the long run, leading to an overall erosion of trust. We explored the interaction of pledges with sanctions and the decay of their effects on people’s honesty by manipulating whether pledges were accompanied by sanctions (fines) and testing their impact on sequential, repeated ethical decisions. We found that pledges considerably and consistently reduced dishonesty, and this effect was not crowded out by the presence of fines. Furthermore, pledges seem to exert an effect on most people, including those who are relatively less inclined to follow rules and norms. We conclude that pledges could be an effective tool for the behavioral regulation of dishonesty, reduce the regulatory burden, and build a more trusting relationship between government and the public, even in areas where incentives and opportunities to cheat are high.

scholarly journals Users Acceptance of E-Government System in Sintok, Malaysia: Applying the UTAUT Model

2021 ◽  
Vol 5 (1) ◽  
pp. 66
Author(s):  
Anisa Safiah Maznorbalia ◽  
Muhammad Aiman Awalluddin
Keyword(s):  
Public Administration ◽  
Unified Theory ◽  
Key Factors ◽  
Developed Country ◽  
The Public ◽  
Government Services ◽  
Utaut Model ◽  
Use Of Technology ◽  
Efficiency And Effectiveness ◽  
Very High

E-government services have become a vital tool to provide citizens with more accessible, accurate and high-quality services and information. E-government system provides an efficient dissemination of information to people and eases people to communicate directly with government services. The utilization of ICT through e-government enhancing efficiency and effectiveness of service delivery in the public sector. The system is regarded as one of the vital elements to be a developed country. The application of e-government indicates the readiness and ability of the nation utilizing technology within public administration periscope. Although the Malaysian government has introduced e-government for many years, its acceptance still not very high. Therefore, this paper studies the key factors of Malaysian citizens’ in Sintok, Kedah, a semi- rural area on approval on e-government services based on the Unified Theory of Acceptance and the Use of Technology (UTAUT Model). The survey data was collected from 83% respondents to measure people understanding and awareness toward e-government system. The results show that there is an excellent understanding among Malaysian towards e-government system.

scholarly journals 疫區、口罩與無症狀感染者——新型冠狀病毒疫情如何破壞了我們的公共生活

2020 ◽  
Vol 18 (1) ◽  
pp. 5-25
Author(s):  
Guobin CHENG
Keyword(s):  
Interpersonal Relations ◽  
Public Life ◽  
Detection Methods ◽  
Moral Obligations ◽  
Accidental Injury ◽  
The Public ◽  
Fundamental Goal ◽  
The Status ◽  
The Public Sphere ◽  
Self Protection

LANGUAGE NOTE | Document text in Chinese; abstract also in English.新型冠狀病毒疫情所帶來的巨大的、彌散的、不確定的威脅，使社會公共生活中人們熟悉和信賴的闢係與界限變得糢糊。在這種情沉下，人們最需要的就是發現“敵人”，重新為人際闢係和公共生活找到確定性。在精準、高效的科學檢測手段獲得普及之前，人們不得不選擇簡易的標籤化方法進行區 分。疫區標籤是通過清潔與污染的劃分來保護現有的正常生活秩序，但在找到敵人的過程中有可能造成對無辜者的誤傷；口罩標數的使用則首先指向了人群的區分與界限，是想要在混亂之中先找到群體邊界和歸屬感，但有可能會轉變為主動去創造敵人。這些手段的根本目的都是為了實現自我保護，但在這樣的利害關係考量之外，還存在著某種個人對他人和公共生活的普遍義務，只有我們能夠在生存危機的巨大壓力下選擇堅持這一道德義務，才能為戰勝疫情奠定真正的希望。當代的公共生活是一個緊密地彼此闢聯、密切交通、相互滲入和共生性的整體，但這個共同體本身是十分脆弱的，在巨大的安全壓力之下很容易滑向分裂與隔離。新型冠狀病毒疫情既是一次嚴峻的挑戰，又是一次重要的演習，我們需要在其中學到足夠多的經驗，為未來可能出現的更大危機做好準備。The huge, diffuse, and uncertain threat brought about by the Covid-19 epidemic has blurred familiar and trusted relationships and the boundaries of public life. Under such circumstances, what people need most is to uncover the “enemy” and regain certainty in interpersonal relations and the public sphere. Before the popularization of accurate and efficient scientific detection methods, people used simple labeling methods to tell concepts apart. Labeling epidemic areas protects the status quo by demarcating cleanliness from pollution, but in finding the enemy, doing so may cause accidental injury to the innocent. Labeling masks allows distinctions in the crowd so that group boundaries and senses of belonging can be found in chaos. However, such labeling may lead to the creation of enemies. The fundamental goal of these methods is self-protection. Nevertheless, in addition to such considerations, individuals have a wider moral obligation to others and to public life. Only by choosing to adhere to our moral obligations under the enormous pressure of a survival crisis can we find true hope to defeat the epidemic. Contemporary public life is a symbiotic community that is closely related, in close communication, and mutually enmeshed. Such a community is very fragile, and it can easily slip into divisiveness and become isolated under huge security pressures. The Covid-19 epidemic is not only a serious challenge, but also an important exercise. We need to learn enough to prepare for greater crisis that may arise in the future.DOWNLOAD HISTORY | This article has been downloaded 31 times in Digital Commons before migrating into this platform.

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