Ant Colony Optimization (ACO) algorithms have been successful in solving a wide variety of NPhard optimization problems. The Traveling Salesman Problem (TSP) has served as a benchmarking problem for many novel ACO algorithms. The slightly harder Dynamic Traveling Salesman Problem (DTSP) is more realistic in the sense that real-time changes happen in the graph belonging to a TSP instance. This thesis studied the original ACO algorithm: the Ant System, and how the amount of pheromone deposited by the ants within the algorithm affected the performance when solving both TSP and DTSP problems. Additionally, 2-opt local search was added to the algorithm, to see how it impacted the performance. We found that when the ants deposited a greater amount of pheromone, the performance for TSP increased, while the performance for DTSP decreased. We concluded that the Ant System in its original form is unsuitable for solving the DTSP. 2-opt local search improved the performance in all instances. / Ant Colony Optimization-algoritmer (ACO) har visat sig vara bra på att lösa många olika NP-svåra optimeringsproblem. För att mäta prestandan för nya ACO-algoritmer har i många fall Handelsresandeproblemet (eng. TSP) använts. Den dynamiska varianten av TSP (eng. DTSP), är ett något svårare problem då förändringar i grafen kan ske i realtid. Denna uppsats utredde hur olika mängder feromon som avges av myrorna inuti algoritmen Ant System, påverkade prestandan för både TSPoch DTSP-instanser. Utöver detta studerades hur den lokala sökningsheuristiken 2-opt påverkade prestandan. Resultaten visade att om myrorna tilläts släppa mer feromoner, ökade prestantan för TSP, men minskade för DTSP. Därav drog vi slutsatsen att algoritmen Ant System i sin ursprungliga form ej är lämplig för att lösa DTSP. Den lokala söknigsheuristiken 2-opt förbättrade prestandan i alla tester.

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In the context of the Internet, spam generally refers to unsolicited and unwanted electronic messages, usually transmitted to a large number of recipients. The problem with spam is that almost all of the related costs are shifted onto the recipients, and many of the messages contain objectionable content. Spam has become a significant problem for network administrators, businesses and individual Internet users that threatens to undermine the usefulness of e-mail. Globally, spam spiralled to account for over 60% of all e-mail near the end of 2004. It is a problem that costs the global economy billions of dollars a year in lost productivity, anti-spam measures and computer resources. It has forced governments to enact legislation against the problem and it has prompted the development of numerous technical countermeasures. Spam can only be defeated by a combination of legal measures, informal measures (including self regulation and social norms), technical measures and consumer education. Because spam is a relatively recent and evolving problem, the application of various common law mechanisms are explored, including the law of privacy and the law of nuisance. Various constitutional concerns may also arise in the context of spam, and the right to freedom of expression must be balanced against other competing rights and values, including the right to privacy. Comparative legislation is examined, because it is important to recognise trends in spam legislation in other jurisdictions so as to ensure a measure of interoperability with those laws. The practical difficulties in identifying spammers, and the lack of jurisdiction over offshore offenders affect the practical implementation of the current protection offered by the ECT Act. In conclusion, this thesis identifies the need for direct anti-spam legislation in South Africa, and suggests various clauses that will need to be catered for in the legislation. It is submitted that "opt-in" legislation should be preferred over "opt-out" legislation. It is further submitted that a definition of spam should be based on the volume and indiscriminate nature of the e-mail, and not only on whether the communication was commercial. Therefore, a definition of bulk unsolicited e-mail is proposed. / Criminal & Procedural Law / LLD

隨著網路科技的發展，網路垃圾郵件的總量亦隨之快速成長，成為全球網路使用者的共同夢魘。目前大多數的國家均有以立法方式作為管制依據。然而，就憲法人權保障的觀點而言，相關立法是否能合於憲法原理原則的檢視？是否已逾越其界線？仍有待進一步商榷。 是以，本文分別從「比較法論」以及「人權保障論」二大部分出發。一方面藉著比較觀察各國立法，並作為我國立法參考借鏡；另一方面則從憲法的觀點，特別是基本權利的保障出發，分別從商業言論自由的觀點、秘密通訊自由的觀點與隱私權的觀點探討。就商業言論自由的觀點而言，將首先探究商業言論自由的意涵與憲法上的發展比較，再分別就美國法制與我國法制探討相關濫發商業電子郵件法制是否對於發信者的商業言論自由形成過度的限制。就秘密通訊自由的觀點而言，除了將說明秘密通訊自由在通訊服務自由化的時代，在憲法上具有的時代意義之外，亦將討論濫發商業電子郵件法制當中可能涉及干涉人民秘密通訊自由的制度與通訊服務提供業者攔截阻擋商業電子郵件的手法對秘密通訊自由的影響，另並試就我國立法參考最多的日本法制進行比較與分析。就隱私權的觀點而言，除了說明隱私權在憲法上的意義外，將討論重心置於在濫發商業電子郵件的行為對於收信者隱私權侵害的態樣，是否已能藉由現行的法制找到保障依據，另外則是討論我國濫發商業電子郵件法制對於隱私權的保障是否充分；最後則是嘗試就論者提出的商業電子郵件法制規範對於發信者的「網路匿名」侵害的見解，進行評論。 最後則提出結論，說明研究發現以及對我國規範之建議與未來展望。

La différenciation entre les États membres de l’Union européenne s’est progressivement transformée en un leitmotiv du débat sur l’avenir de l’intégration. Ce débat a resurgi avec l’activation de la clause du retrait par le Royaume-Uni, qui pose dans un cadre renouvelé la question de la compatibilité du processus de création d’une « union sans cesse plus étroite » avec la possibilité pour les États membres d’emprunter différentes voies d’intégration. L’objectif de la présente étude est d’apporter un éclairage sur cette question, en se focalisant sur l’amplification des manifestations de la différenciation en droit positif. La première partie de l’étude vise à cerner la tension entre l’uniformité du statut d’État membre de l’Union et la participation asymétrique des États aux actions engagées pour la réalisation des objectifs assignés à l’Union. La différenciation s’avère ainsi un facteur de relativisation de l’homogénéité du statut d’État membre, sans néanmoins mettre en cause son unicité en tant que catégorie juridique. La seconde partie s’intéresse aux effets de la différenciation sur la structure de l’Union. La prise en compte de la différence d’implication des États n’est pas sans incidence sur le système institutionnel et juridique de l’Union, sans que cela traduise un désordre affectant l’intégrité de l’Union. Il devient alors évident que, dans la creatio continua que constitue la construction européenne, la différenciation pose une question de degré, plutôt que de principe. / Differentiation between the Member States of the European Union has gradually turned into a leitmotif of the debate regarding the future of the European integration. This debate re-emerged in the context of the activation of the withdrawal clause by the United Kingdom, by raising once more the question of the compatibility of the "ever closer union" concept with the possibility for the Member States to follow different paths of integration. The aim of this study is to clarify this question by focusing on the amplification of the various forms of differentiation in positive law. The first part of the study aims to identify the contrast between the uniformity of the EU membership and the asymmetrical participation of the Member States in actions undertaken to achieve the objectives assigned to the Union. Differentiation proves thus to be a relativizing factor of the homogeneity of the Member State's status, without, however, questioning its uniqueness as a legal category. The second part of the study focuses on the effects of differentiation on the structure of the Union. The different extent of participation of each Member State in EU policies has an impact on the Union's institutional and legal framework, even though this impact does not create a disorder affecting the integrity of the Union as such. It is thus apparent that within the creatio continua of the European construction, differentiation poses more a question of degree rather than principle.

Submitted by Luis Felipe Lopes Martins (lopesmartins.luis@gmail.com) on 2016-01-29T21:26:38Z No. of bitstreams: 1 Regulação da Prev. Compl. Fechada sob a Perspeciva da Econ.pdf: 1574022 bytes, checksum: 838f7519247a9eb766f1fd72df335260 (MD5) / Rejected by BRUNA BARROS (bruna.barros@fgv.br), reason: Favor submeter novamente, pois faltou a ficha catalográfica. on 2016-02-11T17:32:48Z (GMT) / Submitted by Luis Felipe Lopes Martins (lopesmartins.luis@gmail.com) on 2016-02-11T17:50:59Z No. of bitstreams: 1 Regulação da Prev. Compl. Fechada sob a Perspeciva da Econ. Comportamental - Luis Lopes Martins.pdf: 1600447 bytes, checksum: bda49ea57d8454add667b598daa8a61b (MD5) / Approved for entry into archive by BRUNA BARROS (bruna.barros@fgv.br) on 2016-02-16T17:20:53Z (GMT) No. of bitstreams: 1 Regulação da Prev. Compl. Fechada sob a Perspeciva da Econ. Comportamental - Luis Lopes Martins.pdf: 1600447 bytes, checksum: bda49ea57d8454add667b598daa8a61b (MD5) / Approved for entry into archive by Maria Almeida (maria.socorro@fgv.br) on 2016-02-16T18:58:50Z (GMT) No. of bitstreams: 1 Regulação da Prev. Compl. Fechada sob a Perspeciva da Econ. Comportamental - Luis Lopes Martins.pdf: 1600447 bytes, checksum: bda49ea57d8454add667b598daa8a61b (MD5) / Made available in DSpace on 2016-02-16T18:59:01Z (GMT). No. of bitstreams: 1 Regulação da Prev. Compl. Fechada sob a Perspeciva da Econ. Comportamental - Luis Lopes Martins.pdf: 1600447 bytes, checksum: bda49ea57d8454add667b598daa8a61b (MD5) Previous issue date: 2015-12-15 / The present dissertation looks into the use of measures as the automatic enrolment in the pension funds regulation from the perspective of the loosening of the concept of rationality, based on the Law and Behavional Economics. The work is initiated by the historical evolution of Brazilian pension funds’ regulations. It analyzes the systemic impacts created by changes to the pension pillars, particularly to the first one (public pension). In view of these changes and the increasing relevance of the second pillar (occupational pension) to ensure the welfare, this dissertation aims to analyze the possibility of occurrence of cognitive biases in complementary pensions-related decisions. Those cognitive biases can lead individuals to choose options that do not maximize their welfare, for reasons such as inertia, procrastination and optimism, unlike the predicted by the rationality assumption of the neoclassical economic theory. The outcomes analyzed indicate the necessity of regulatory measures to mitigate these cognitive biases, which should be mainly the adoption of a choice arquitecture that can induce the welfare maximization, without limit the individual freedom of choice. Those measures, however, specially the automatic enrollment, are intended to alleviate the cognitive biases, being censurable its adoption in pension plans with predominance of other reasons to the low levels of enrollment, as distrust in the fund administration. Moreover, is needed to respect certain criteria in the automatic enrollment implementation, in order to ensure that this instrument is used only when cognitive biases that reduce the welfare are observed, as well that the option that people are being nudged to is a gainful option, at least most of the times. At end, it is verified the legality of these measures using the standard of proportionality, which allows to identify the limits to the regulatory intensity. / A presente dissertação investiga a utilização de medidas como a adesão automática pela regulação da previdência complementar fechada a partir da flexibilização do conceito de racionalidade, tendo como base a Análise Econômica e Comportamental do Direito. Inicia-se o trabalho pela evolução histórica da regulação da previdência no Brasil, avaliando os impactos sistêmicos das alterações ocorridas no primeiro pilar previdenciário (regimes básicos). Em virtude dessas alterações e do crescimento da relevância do segundo pilar de previdência social (Previdência Complementar Fechada) para a manutenção do bem-estar, analisa-se a possibilidade de ocorrência de vieses cognitivos que implicam desvios de racionalidade dos indivíduos nas decisões relativas à previdência complementar. Esses vieses cognitivos podem fazer com que indivíduos escolham alternativas que não maximizam seu bem-estar, por razões como inércia, procrastinação e superotimismo, ao contrário do que aponta o pressuposto de racionalidade da Economia Neoclássica. Os resultados analisados conduzem à necessidade de adoção de medidas regulatórias capazes de mitigar esses desvios de racionalidade, na forma de adoção de arquitetura de escolhas que induzam à maximização do bem-estar individual, sem limitar a liberdade individual dos envolvidos. Essas medidas, entretanto, especialmente a adesão automática aos planos de benefícios, destinam-se à mitigação de vieses cognitivos, sendo criticável sua adoção em planos de previdência onde observa-se predominância de outras razões para baixos níveis de adesão, como desconfiança em relação à gestão do plano. Ademais, faz-se necessário respeitar certos critérios para sua implementação, a fim de garantir que esse instrumento somente seja utilizado quando se observar vieses cognitivos que prejudiquem significativamente o bem-estar, bem como que a opção à qual os indivíduos estão sendo induzidos é vantajosa, ao menos na grande maioria das vezes. Ao final, verifica-se a juridicidade dessas medidas, à luz da proporcionalidade, norma que permite identificar os limites para a intensidade regulatória.

In the context of the Internet, spam generally refers to unsolicited and unwanted electronic messages, usually transmitted to a large number of recipients. The problem with spam is that almost all of the related costs are shifted onto the recipients, and many of the messages contain objectionable content. Spam has become a significant problem for network administrators, businesses and individual Internet users that threatens to undermine the usefulness of e-mail. Globally, spam spiralled to account for over 60% of all e-mail near the end of 2004. It is a problem that costs the global economy billions of dollars a year in lost productivity, anti-spam measures and computer resources. It has forced governments to enact legislation against the problem and it has prompted the development of numerous technical countermeasures. Spam can only be defeated by a combination of legal measures, informal measures (including self regulation and social norms), technical measures and consumer education. Because spam is a relatively recent and evolving problem, the application of various common law mechanisms are explored, including the law of privacy and the law of nuisance. Various constitutional concerns may also arise in the context of spam, and the right to freedom of expression must be balanced against other competing rights and values, including the right to privacy. Comparative legislation is examined, because it is important to recognise trends in spam legislation in other jurisdictions so as to ensure a measure of interoperability with those laws. The practical difficulties in identifying spammers, and the lack of jurisdiction over offshore offenders affect the practical implementation of the current protection offered by the ECT Act. In conclusion, this thesis identifies the need for direct anti-spam legislation in South Africa, and suggests various clauses that will need to be catered for in the legislation. It is submitted that "opt-in" legislation should be preferred over "opt-out" legislation. It is further submitted that a definition of spam should be based on the volume and indiscriminate nature of the e-mail, and not only on whether the communication was commercial. Therefore, a definition of bulk unsolicited e-mail is proposed. / Criminal and Procedural Law / LLD

The theme of my diploma thesis is a comparison of the Czech pension system with pension systems of chosen European Union countries. I focus also on planned changes and a further development in the Czech pension system and in chosen states. For the comparison I chose four states ? the Slovak Republic, Poland, Germany and the Great Britain. I chose the Slovak Republic, Poland and Germany because these are states with the pension systems similar to the Czech Republic. On the contrary I selected the Great Britain because its system is very different. The aim of this thesis was to compare pension systems in chosen European Union countries: the Czech Republic, the Slovak Republic, Poland, Germany and the Great Britain and to map their further development. The thesis was processed theoretically and it is focused only on the pension that secures a man in the retirement age. The introduction outlines a demographic development, which is one of the factors why there are changes in individual systems. Furthermore, in this thesis there are characterized pension systems of the chosen states. There are mentioned conditions for a participation in the pension schemes, types of retirement pensions and conditions for an entitlement to a pension payment. To outline the development of individual systems, I tried, in the second part of the thesis, to briefly describe pension reforms and current changes that occurred. In all countries a necessary condition for an entitlement to pension payments is to pay a social security insurance that is why I compared amounts of the insurances in individual states, which I further took into account in a discussion. I always compared the Czech Republic with the other states in the discussion. I focused on the comparison of the retirement age, years of the insurance required for the entitlement for the retirement pension, current changes and especially an opt-out system in the Czech Republic which is planned for the next year. I tried to compare the conditions that were during the implementation of this system established in other states and which are planned in this country. I believe that the thesis can be used by a professional and lay public for a better orientation in the legislation of pension systems of the chosen states.

The thesis is concerned with optimal retirement pension planning in the framework of the Czech pension system. The work proposes an unavoidable reform in order to compensate for adverse demographic trends. Subsequently, it introduces mathematical methods for future old-age pension determination in private pensions. Equally, the thesis deals with optimal pension strategies: when the benefits of individual old-age insurance outgrow those of institutionalised pension insurance and vice versa. A particular aspect of the reform where participants can partially opt out from the compulsory pillar and become part of the new system is discussed with emphasis on the opt-out accompanying factors.