scholarly journals Employing Dynamic Logic in Cybersecurity

10.28945/3915 ◽  
2017 ◽  
Vol 2 ◽  
pp. 001-023

Dr. Leonid Perlovsky, distinguished physicist and cognitive scientist, pondered this question, which could have a significant impact on his research direction in the years to come. Over the past few decades, he had developed and refined algorithms for distinguishing objects in images, an approach that had found its way into various classified U.S. Department of Defense (DoD) applications. Now he was looking for new potential opportunities to see his research applied, allowing it to evolve further. One of the most interesting aspects of Perlovsky’s approach was that it was very similar to that taken by the human brain in processing sensory information. It began with a very vague model of what might or might not be present in the data being examined. Through successive iterations, analogous to the layers of processing used in human sensory systems, the patterns in the data corresponding to objects would grow more and more distinct until, finally, they became recognizable. Unlike most statistical techniques, this approach—termed “dynamic logic” by Perlovsky—did not require that a model be specified in advance. As such, it was well suited for contexts that required discovery. One application of dynamic logic that particularly impressed him involved the detection of malware in network packet data. Using an externally provided database of this traffic, his algorithm had successfully identified the presence of malware with almost eerie precision, and with substantially less processing than competing techniques. This suggested that dynamic logic could well become a powerful tool in the arsenal of IT professionals seeking to protect their systems from hackers. What other possible cybersecurity-related opportunities might be well suited to this tool? Identifying potential opportunities represented only part of the challenge of putting dynamic logic to work. After letting the project lay dormant for several years, he had recently been approached by an energetic Brazilian master’s student who had identified ways that DL (dynamic logic) could be used. The student had also established a DL open source project on his own initiative. If that project were to move forward, Perlovsky would need to provide some encouragement and guidance. But he had his own set of questions. Was the open source path the right way to proceed? What potential application should be given highest priority? Should government or commercial funding be pursued? And the big question… Perlovsky readily acknowledged that he was no cybersecurity expert. Given that he was already actively pursuing grants from the DoD and National Institute of Health (NIH), would it really make sense to split his attention further, and look towards tackling an entirely new class of problems?


10.28945/3927 ◽  
2017 ◽  
Vol 6 ◽  
pp. 11
Author(s):  
Grandon Gill ◽  
Bernardo Rodrigues

A physicist who studies the human brain has adapted dynamic logic, a machine learning algorithm he developed, to run on a test database of network traffic. The algorithm has proven surprisingly adept at identifying malware traffic. Now he ponders how the project might move forward, given that cybersecurity is entirely outside of his domain of expertise (and interest). Dr. Leonid Perlovsky, distinguished physicist and cognitive scientist, pondered this question, which could have a significant impact on his research direction in the years to come. Over the past few decades, he had developed and refined algorithms for distinguishing objects in images, an approach that had found its way into various classified U.S. Department of Defense (DoD) applications. Now he was looking for new potential opportunities to see his research applied, allowing it to evolve further. One of the most interesting aspects of Perlovsky’s approach was that it was very similar to that taken by the human brain in processing sensory information. It began with a very vague model of what might or might not be present in the data being examined. Through successive iterations, analogous to the layers of processing used in human sensory systems, the patterns in the data corresponding to objects would grow more and more distinct until, finally, they became recognizable. Unlike most statistical techniques, this approach—termed “dynamic logic” by Perlovsky—did not require that a model be specified in advance. As such, it was well suited for contexts that required discovery. One application of dynamic logic that particularly impressed him involved the detection of malware in network packet data. Using an externally provided database of this traffic, his algorithm had successfully identified the presence of malware with almost eerie precision, and with substantially less processing than competing techniques. This suggested that dynamic logic could well become a powerful tool in the arsenal of IT professionals seeking to protect their systems from hackers. What other possible cybersecurity-related opportunities might be well suited to this tool? Identifying potential opportunities represented only part of the challenge of putting dynamic logic to work. After letting the project lay dormant for several years, he had recently been approached by an energetic Brazilian master’s student who had identified ways that DL (dynamic logic) could be used. The student had also established a DL open source project on his own initiative. If that project were to move forward, Perlovsky would need to provide some encouragement and guidance. But he had his own set of questions. Was the open source path the right way to proceed? What potential application should be given highest priority? Should government or commercial funding be pursued? And the big question… Perlovsky readily acknowledged that he was no cybersecurity expert. Given that he was already actively pursuing grants from the DoD and National Institute of Health (NIH), would it really make sense to split his attention further, and look towards tackling an entirely new class of problems?



2021 ◽  
Vol 16 (2) ◽  
pp. 3
Author(s):  
Neale Fong

Leadership and management spawn numerous catchphrases to assert what is important “right now”.  Resilience. Leaning in, or out. Authenticity. Balance. Agility. As a College for health managers and leaders, our clear challenge is to look past the “right now” and create the best platform to support our members through what we hope will be their lengthy career and positive contribution to the health of their communities. In the past year the College has introduced a credentialling approach for health leaders which is inclusive of any and all of the latest leadership theories whilst acknowledging that real and substantial contributions to the health of the community is an iterative process requiring the commitment of individual leaders over long careers spanning decades. Our vision is “Better Leadership. Healthier Communities.” Our body of services is directed at supporting our members to achieve this vision. Why Certification? At the very foundation of the notion of what constitutes a profession is a body of knowledge and skills that requires attainment and continuous improvement. The individual leader is supported by an external body (the College) that describes that body of knowledge and skills and creates a framework for the individual to point to how they personally are committing to lifelong learning and development. In the health sector certification in a profession is an employment currency that has traditionally excluded the leaders and managers. Through the introduction of these credentials, the College supports members and future members to have their body of knowledge and skills recognised and provides the platform for continuing development. The role of consumer expectation plays a role in the need for the College credentialling system. Consumers expect a professional and independent recognition of the capability of the senior people who develop, lead, manage and have responsibility for their health facilities and services. Our Challenge to our CHM’s and CHE’s Implicit in this Certification system is that it is very important that the College’s Certified Health Manager and Certified Health Executives use their postnominals in communications within the health sector, talk about the College’s work in supporting the profession and “live” the vision of committing to lifelong learning as part of a community of leaders. Over the past difficult 18 months the College itself has leaned into this attribute of community which goes beyond the triteness of “we are all in this together”. I have been proud and delighted to see how many of our members stepped up to support each other during this time and have been glad to harness that collegiate good will in developing both free and more importantly more opportunities for members to come together in small and large groups to listen and learn. This journal continues to be an excellent and informative part of health leaders’ journeys. We are thankful for the partnership with SHAPE and commend members’ contributions to this publication; another way to continue the life-long learning that is so necessary in meeting the challenges of the health and community care sectors.



2018 ◽  
Vol 2 (2) ◽  
pp. 65-77
Author(s):  
Rachael Oluyemisi Arowolo ◽  
Ayoib Che Ahmad ◽  
Oluwatoyin Muse Johnson Popoola ◽  
Hisar Pangaribuan

Over the past decade, most studies in corporate governance and audit market have emphasised the importance of monitoring mechanisms (MM), especially after the global economic meltdown resulting from the Enron saga. The literature on MM continues growing as many countries especially the Sub-Saharan Africa are still struggling to come out of the effect of the economic meltdown and businesses continues to fail or merge. This paper, therefore, examines the relationship between Managerial Ownership (MO) and MMs with quality-differentiated auditors (QDA) as the channel for the relationship. The study used data from non-financial listed companies in Nigeria providing empirical supports that MO significantly associates with MMs in the right direction. Likewise, QDA also influences the MMs in the right direction suggesting that QDA is necessarily required to enhance adequate MMs. The findings of this study provide support for the association of MO and MMs with the intervention of QDA for solutions to agency problems. Companies should, therefore, motivate the management to own shares within the reasonable range that aligns the interest of the management with that of the shareholders. This paper adds to knowledge especially in Nigeria and Sub-Saharan Africa by examining a mediating effect to depict the relationship between MO and MM, which are not evident in prior studies.



Author(s):  
J. Anthony VanDuzer

SummaryRecently, there has been a proliferation of international agreements imposing minimum standards on states in respect of their treatment of foreign investors and allowing investors to initiate dispute settlement proceedings where a state violates these standards. Of greatest significance to Canada is Chapter 11 of the North American Free Trade Agreement, which provides both standards for state behaviour and the right to initiate binding arbitration. Since 1996, four cases have been brought under Chapter 11. This note describes the Chapter 11 process and suggests some of the issues that may arise as it is increasingly resorted to by investors.



Crisis ◽  
2003 ◽  
Vol 24 (1) ◽  
pp. 24-28 ◽  
Author(s):  
Lourens Schlebusch ◽  
Naseema B.M. Vawda ◽  
Brenda A. Bosch

Summary: In the past suicidal behavior among Black South Africans has been largely underresearched. Earlier studies among the other main ethnic groups in the country showed suicidal behavior in those groups to be a serious problem. This article briefly reviews some of the more recent research on suicidal behavior in Black South Africans. The results indicate an apparent increase in suicidal behavior in this group. Several explanations are offered for the change in suicidal behavior in the reported clinical populations. This includes past difficulties for all South Africans to access health care facilities in the Apartheid (legal racial separation) era, and present difficulties of post-Apartheid transformation the South African society is undergoing, as the people struggle to come to terms with the deleterious effects of the former South African racial policies, related socio-cultural, socio-economic, and other pressures.



1957 ◽  
Vol 11 (4) ◽  
pp. 381-393
Author(s):  
Kenneth MacGowan
Keyword(s):  
The Past ◽  


Commonwealth ◽  
2017 ◽  
Vol 19 (1) ◽  
Author(s):  
John Arway

The challenges of including factual information in public policy and political discussions are many. The difficulties of including scientific facts in these debates can often be frustrating for scientists, politicians and policymakers alike. At times it seems that discussions involve different languages or dialects such that it becomes a challenge to even understand one another’s position. Oftentimes difference of opinion leads to laws and regulations that are tilted to the left or the right. The collaborative balancing to insure public and natural resource interests are protected ends up being accomplished through extensive litigation in the courts. In this article, the author discusses the history of environmental balancing during the past three decades from the perspective of a field biologist who has used the strength of our policies, laws and regulations to fight for the protection of our Commonwealth’s aquatic resources. For the past 7 years, the author has taken over the reins of “the most powerful environmental agency in Pennsylvania” and charted a course using science to properly represent natural resource interests in public policy and political deliberations.



Author(s):  
Josh Kun

Ever since the 1968 student movements and the events surrounding the Tlatelolco massacre, Mexico City rock bands have openly engaged with the intersection of music and memory. Their songs offer audiences a medium through which to come to terms with the events of the past as a means of praising a broken world, to borrow the poet Adam Zagajewski’s phrase. Contemporary songs such as Saúl Hernández’s “Fuerte” are a twenty-first-century voicing of the ceaseless revolutionary spirit that John Gibler has called “Mexico unconquered,” a current of rebellion and social hunger for justice that runs in the veins of Mexican history. They are the latest additions to what we might think about as “the Mexico unconquered songbook”: musical critiques of impunity and state violence that are rooted in the weaponry of memory, refusing to focus solely on the present and instead making connections with the political past. What Octavio Paz described as a “swash of blood” that swept across “the international subculture of the young” during the events in Tlatelolco Plaza on October 2, 1968, now becomes a refrain of musical memory and political consciousness that extends across eras and generations. That famous phrase of Paz’s is a reminder that these most recent Mexican musical interventions, these most recent formations of a Mexican subculture of the young, maintain a historically tested relationship to blood, death, loss, and violence.



1996 ◽  
Vol 35 (4I) ◽  
pp. 399-417 ◽  
Author(s):  
John W. Mellor

The right to the flow of income from water is vigorously pursued, protected, and fought over in any arid part of the world. Pakistan is of course no exception. Reform of irrigation institutions necessarily changes the rights to water, whether it be those of farmers, government, or government functionaries. Those perceived rights may be explicit and broadly accepted, or simply takings that are not even considered legitimate. Nevertheless they will be fought over. Pakistan has a long history of proposals for irrigation reform, little or none being implemented, except as isolated pilot projects. Thus, to propose major changes in irrigation institutions must be clearly shown to have major benefits to justify the hard battles that must be fought and the goodwill of those who might win those battles for reform. Proponents of irrigation institution reform have always argued the necessity of the reforms and the large gains to be achieved. Perhaps, however, those arguments have not been convincing. This paper will briefly outline the failed attempts at irrigation reform to provide an element of reality to the discussion. It will then proceed to make the case of the urgency of reform in a somewhat different manner to the past. Finally, current major reform proposals will be presented. This paper approaches justification of irrigation reform by focusing on the agricultural growth rate. It does so because that is the critical variable influencing poverty rates and is a significant determinant of over-all economic growth rates. The paper decomposes growth rates and suggests a residual effect of deterioration of the irrigation system that is large and calls for policy and institutional reform. The data are notional, suggesting the usefulness of the approach and paves the way for more detailed empirical analysis and enquiry for the future.



Author(s):  
Jonathan Hopkin

Recent elections in the advanced Western democracies have undermined the basic foundations of political systems that had previously beaten back all challenges—from both the Left and the Right. The election of Donald Trump to the US presidency, only months after the United Kingdom voted to leave the European Union, signaled a dramatic shift in the politics of the rich democracies. This book traces the evolution of this shift and argues that it is a long-term result of abandoning the postwar model of egalitarian capitalism in the 1970s. That shift entailed weakening the democratic process in favor of an opaque, technocratic form of governance that allows voters little opportunity to influence policy. With the financial crisis of the late 2000s, these arrangements became unsustainable, as incumbent politicians were unable to provide solutions to economic hardship. Electorates demanded change, and it had to come from outside the system. Using a comparative approach, the text explains why different kinds of anti-system politics emerge in different countries and how political and economic factors impact the degree of electoral instability that emerges. Finally, it discusses the implications of these changes, arguing that the only way for mainstream political forces to survive is for them to embrace a more activist role for government in protecting societies from economic turbulence.



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