E-handel har de senaste åren ständigt ökat vilket har bidragit till ökande krav på hållbaratransporter vilket medverkat till forskning av alternativ till traditionella transportföretag.Crowdshipping är ett koncept där det med hjälp av teknologiska applikationer kan utnyttjaindividers resurser för att skapa transportnätverk inom urbana områden. Användandet avindivider som redan är på väg till en plats och tar med ett paket i farten kan innebära mindrefordon på vägarna. I denna studie samlade vi in empirisk data genom att skicka ut en enkät till olika facebook-grupper bestående av studenter i Sverige och utförde två fokusgrupper med totalt åtta deltagare. Syftet med enkäten och fokusgrupperna var att undersöka respondenternasinställning och uppfattade hinder/möjligheter till crowdshipping. Med kunskap samlat utifrånvetenskapliga artiklar kunde ett teoretiskt ramverk etableras. Genom att studerat väsentligafaktorer till crowdshipping (tillit och säkerhet, miljö och hållbarhet, tid ochkompensation/prissättning) kunde vi analysera vårt empiriska material. Analysen byggs uppefter de teoretiska faktorerna som har inverkan på crowdshipping. Det visade sig attrespondenterna hade bekymmer med flertal säkerhetsaspekter inom CS-initiativ sompåverkade deras inställning negativt. Dock ansåg många respondenter initiativet som positivtifall det gick att säkerställa miljömässiga fördelar och flertalet säkerhetsaspektertillhandahölls. / E-commerce has steadily increased in recent years, which has contributed to increaseddemands for sustainable transport, which contributes to research into alternatives totraditional transport companies. Crowdshipping is a concept where, with the help oftechnological applications, it can utilize individuals' resources to create transport networks inurban areas. The use of individuals who are already on their way to a place and taking apackage on the go can mean fewer vehicles on the roads. In this study, we collected empirical data by sending out a questionnaire to various Facebookgroups consisting of students in Sweden and conducted two focus groups with a total of eightparticipants. The purpose of the survey and focus groups was to examine the respondents'attitudes and perceived obstacles/opportunities for crowdshipping. With knowledge gatheredbased on scientific articles, a theoretical framework could be established. By studyingsignificant factors for crowdshipping (trust and security, environment and sustainability, timeand compensation/pricing), we were able to analyze our empirical material. The analysis isbased on the theoretical factors that have an impact on crowdshipping. It turned out that therespondents had concerns with several security aspects within CS initiatives that had anegative effect on their attitude. However, many respondents considered the initiative to bepositive if it was possible to ensure environmental benefits and most safety aspects wereprovided.

Advances in social networks and multimedia technologies greatly facilitate the recording and sharing of video data on violent social and/or political events via In- ternet. These video data are a rich source of information in terms of identifying the individuals responsible for damaging public and private property through vio- lent behavior. Any abnormal, violent individual behavior could trigger a cascade of undesirable events, such as vandalism and damage to stores and public facilities. When such incidents occur, investigators usually need to analyze thousands of hours of videos recorded using handheld devices in order to identify suspects. The exhaus- tive manual investigation of these video data is highly time and resource-consuming. Automated detection techniques of abnormal events and actions based on computer vision would o↵er a more e cient solution to this problem. The first contribution described in this thesis consists of a novel method for fire detection in riot videos acquired with handheld cameras and smart-phones. This is a typical example of computer vision in the wild, where we have no control over the data acquisition process, and where the quality of the video data varies considerably. The proposed spatial model is based on the Mixtures of Gaussians model and exploits color adjacency in the visible spectrum of incandescence. The experimental results demonstrate that using this spatial model in concert with motion cues leads to highly accurate results for fire detection in noisy, complex scenes of rioting crowds. The second contribution consists in a method for detecting abnormal, violent actions that are performed by individual subjects and witnessed by passive crowds. The problem of abnormal individual behavior, such as a fight, witnessed by passive bystanders gathered into a crowd has not been studied before. We show that the presence of a passive, standing crowd is an important indicator that an abnormal action might occur. Thus, detecting the standing crowd improves the performance of detecting the abnormal action. The proposed method performs crowd detection first, followed by the detection of abnormal motion events. Our main theoretical contribution consists in linking crowd detection to abnormal, violent actions, as well as in defining novel sets of features that characterize static crowds and abnormal individual actions in both spatial and spatio-temporal domains. Experimental results are computed on a custom dataset, the Vancouver Riot Dataset, that we generated using amateur video footage acquired with handheld devices and uploaded on public social network sites. Our approach achieves good precision and recall values, which validates our system’s reliability of localizing the crowds and the abnormal actions. To summarize, this thesis focuses on the detection of two types of abnormal events occurring in violent street movements. The data are gathered by passive participants to these movements using handheld devices. Although our data sets are drawn from one single social movement (the Vancouver 2011 Stanley cup riot) we are confident that our approaches would generalize well and would be helpful to forensic activities performed in the context of other similar violent occasions. / Graduate

The purpose of this thesis is to understand the concept of collective behavior from different theoretical perspectives and the policy implications they imply for the Turkish Riot Police Units. The civil disturbances in the 1960s have clearly illustrated range of problems in the domain of crowd control. This work will start with the general characteristics and the classification of collective behavior. Second, two main perspectives on collective behavior, which are the structuralist and the interactionist perspectives, will be examined respectively. The question will be asked whether these two perspectives efficiently and effectively explain the crowds and the crowd control. Finally, the other factors in crowd control will be explored, and recommendations concerning the handling of crowds in a more peaceful manner will be made.

The emergence of collective patterns from repeated local interactions between individuals is a common feature to most living systems, spanning a variety of scales from cells to animals and humans. Subjects of this thesis are two aspects of emergent complexity in living systems: collective movement and transport network formation. For collective movement, this thesis studies the role of movement-mediated information transfer in fish decision-making. The second project on collective movement takes inspiration from granular media and soft mode analysis and develops a new approach to describe the emergence of collective phenomena from physical interactions in extremely dense crowds. As regards transport networks, this thesis proposes a model of network growth to extract simple, biologically plausible rules that reproduce topological properties of empirical ant trail networks.  In the second project on transport networks, this thesis starts from the simple rule of “connecting each new node to the closest one”, that describes ants building behavior, to study how balancing local building costs and global maintenance costs influences the growth and topological properties of transport networks. These projects are addressed through a modeling approach and with the aim of identifying minimal sets of basic mechanisms that are most likely responsible of large-scale complex patterns. Mathematical models are always based on empirical observations and are, when possible, compared to experimental data.

The eyes are a valuable source of information for a range of social processes. The stare-in-the-crowd effect describes the ability to detect self-directed gaze. Impairment in gaze detection mechanisms, such as the stare-in-the-crowd effect, has implications for social interactions and development of social relationships. Given the frequency with which humans utilize gaze detection in interactions, there is a need to better characterize the stare-in-the-crowd effect. This study utilized a previously validated dynamic visual paradigm to capture the stare-in-the-crowd effect. We compared typically-developing (TD) young adults and young adults with Autism Spectrum Disorder (ASD) on multiple measures of psychophysiology, including eye tracking and heart rate monitoring. Four conditions of visual stimuli were presented: averted gaze, mutual gaze, catching another staring, and getting caught staring. Eye tracking outcomes and arousal (pupil size and heart rate variability) were compared by diagnosis (TD or ASD) and condition (averted, mutual, catching another staring, getting caught staring) using repeated measure ANOVA. Significant interaction of diagnosis and condition was found for IA dwell time, IA fixation count, and IA second fixation duration. Hierarchical regression was used to assess how dimensional behavioral measures predicted eye tracking outcomes and arousal; only two models with advanced theory of mind as a predictor were significant. Overall, we demonstrated that individuals with ASD do respond differently to various gaze conditions in similar patterns to TD individuals, but to a lesser extent. This offers potential targets to social interventions to capitalize on this present but underdeveloped response to gaze. Implications and future directions are discussed.

I have paid attention to artworks of Ivan Kafka especially to the problem of multiplicity. On the background of the reseach of Kafka's work I have described some aspects of his art work in more common way: dealing with time, with space and with multiplicity. I have shortly analyzed first two aspects. On the other hand is multiplicity much wider phenomena, I have defined with categories which were created specially for this work. The category of mass is defined by non-living unifique parts of one coplex without any autonomy. The second type labeled as crowd type, typically contains some level of individuality. On such background I tried to create a diagramatic structure, which was postulated according to Rolasind Krauss'es "expanded fields". This should better show the relations between terms like mass, crowd, seriality and serial type of multiplicity. I have also applied these categories on particular Ivan Kafka's artworks, but in the end I suggest to asser this system of multiplicity categories on other artists artworks as well.

Ce travail de thèse entend étudier les rassemblements de personnes. Plutôt que le terme de « foule», trop lié à la psychologie des foules, c‘est le terme de rassemblement, théorisé par Georges Lefebvre qui sera utilisé. Il est défini comme un agrégat intentionnel d‘acteurs sociaux, qui interagissent, communiquent et agissent ensemble.Contrairement aux conclusions de la psychologie des foules, les rassemblements de personnes sont conçus comme un lieu d‘intense construction sociale. Ceux-ci sont des objets sociaux normés. Ils sont le lieu de nombreuses stratégies intentionnelles de la part des acteurs sociaux qui y participent.Dans le cadre de cette étude, ce sont les fins des participants, les mécanismes de mobilisation, leur répertoire d‘action, qui sont au centre de la compréhension de notre objet. Elle passe aussi l‘étude des interactions entre participants, ainsi que des mécanismes de communication qui rendent possible ces interactions. Enfin, ce sont les dynamiques de maintien de l‘ordre et d‘exercice de pouvoir par les participants qui sont au centre de notre attention.Ces problématiques ont été confrontées au terrain par une étude comparative entre manifestations, rassemblements sportifs et rassemblements festifs. Elle a permis de dégager les points communs, mais aussi les différences entre ces évènements. / This dissertation is about crowd gatherings. Rather than the term ―crowd‖, methodologically linked to the psychology of crowds, we will use the term ―gathering‖, theorized by Georges Lefebvre. It is defined as an intentional aggregate of social actors who interact, communicate and act together.Unlike the psychology of crowds, gatherings of people are considered as a place of intense social construction. Those objects are understandable by the social norms that they adopt. They are also a place of numerous intentional strategies put into place by the social actors involved.In this study, the objectives of the participants as well as mechanisms of mobilization and repertories of action, are central to the understanding of our subject . It will also involve the study of interactions between participants as well the communication mechanisms within the gathering. Finally, we will focus on crowd control, law enforcement and the empowerment of the participants.These issues have been confronted to the social field by a comparative case study between demonstrations, sports gatherings and festive gatherings. It identifies the common points but also differences between these events.

O cinema é um meio de reprodução mecânica da imagem surgido no final do século XIX, na Europa, numa época em que a sociedade e a cultura experimentavam a chegada da modernidade. Sua presença corroborou para a crise da arte pictórica e seu mecanismo de apreensão da realidade foi apropriado pelos artistas das vanguardas de ruptura, em especial os dadaístas, que passaram a utilizar o filme experimental para refletirem e criticarem seu tempo. Muitos dos artistas envolvidos com as vanguardas voltaram-se para a realização de filmes que enfocavam a metrópole e suas contradições na vida e nos costumes de seus habitantes. Este trabalho pretende partir deste ponto, quando o cinema de vanguarda se torna uma ferramenta de documentação histórica e social, procurando, como objetivo, observar a presença da metrópole nos filmes autorais realizados no início do século XX, bem como a presença de seus habitantes, buscando compreender quais procedimentos estéticos e ideológicos permeiam tais obras a partir do uso inventivo da câmera, num momento em que o cinema demonstra clara diferenciação entre a mera narração de entretenimento, e a arte como crítica e reflexão. Neste trabalho serão analisados os filmes Rien que les heures (1926), de Alberto Cavalcanti; e Berlim, sinfonia da grande cidade (1928), de Walter Ruttmann, e comparados com as produções brasileiras São Paulo, a sinfonia da metrópole (1929), de Rudolf Rex Lustig e Adalberto Kemeny; e Fragmentos da vida (1929), de José Medina. A intenção é compreender suas realizações dentro da realidade social, poética e estética de seu tempo, observar a presença da figura do flâneur em contraponto com o homem-da-multidão, e estabelecer paralelos entre os filmes europeus e os brasileiros, aqui abordados. / The cinema is a means of mechanical reproduction of image emerged in the late nineteenth century in Europe, a time when society and culture experienced the arrival of modernity. Its presence corroborated to the crisis of pictorial art and its mechanism of apprehending reality was appropriated by artists of the vanguards of rupture, especially the Dadaists, who started using the experimental film to reflect and criticize their time. Many of the artists involved with the avant-garde turned to the production of films that focused on the metropolis and its contradictions in the life and habits of its inhabitants. This work intends to start from this point, when the avant-garde cinema becomes a tool of social and historical documentation, and seeks to observe the presence of the metropolis in films made in the early twentieth century, as well as the presence of its inhabitants, so to understand what aesthetic and ideological procedures permeate these inventive works, at a time when film shows clear differentiation between mere narration for entertainment, and art criticism and reflection. This reseach will analyze the films Rien que les heures (1926), by Alberto Cavalcanti; and Berlin, symphony of the great city (1928), by Walter Ruttmann, and will compare them with Brazilian productions São Paulo, sinfonia da metrópole (1929), by Rudolf Rex Lustig and Adalberto Kemeny; and Fragmentos da vida (1929), by José Medina. The intention is to understand their accomplishments within the social, aesthetic and poetic reality of their time, observe the presence of the figure of the flâneur as opposed to the manof- the-crowd, and draw parallels between European and Brazilian addressed movies here.

Esse trabalho teve como objetivo contribuir para o debate sobre a importância das políticas de incentivo à inovação no Brasil. Os resultados esperados do uso que as empresas fizeram dos diferentes tipos de instrumentos sobre os gastos em pesquisa e desenvolvimento (P&D) foram avaliados pelo método de diferenças em diferenças. O método permitiu obter as diferenças de gastos entre empresas beneficiárias de instrumentos e as não-beneficiárias em três períodos consecutivos: 2005 em relação à 2003; 2008 em relação à 2005 e de 2011 em relação à 2008. Ao fazer isso, foi possível identificar se tais diferenças foram positivas e significativas, podendo ser atribuídas às influências dos instrumentos. Os instrumentos utilizados foram: incentivos fiscais, Lei de Informática, financiamentos em parcerias, financiamentos sem parcerias e subvenção. E a utilização dos mesmos pelas empresas teve maior relevância no âmbito de diversos programas de apoio à inovação vigentes no país a partir da retomada das políticas industriais e tecnológicas, nos anos 2000. O estudo concluiu que os efeitos positivos e significativos são limitados à determinados grupos tecnológicos e à poucos instrumentos, em geral, de caráter fiscal. Além disso, esses efeitos positivos surgem em apenas um período, sendo que para cada grupo tecnológico foram efetuadas estimativas para três períodos. Também não houve evidências de que os instrumentos financeiros exerçam efeitos significativos sobre as decisões de gastos em pesquisa e desenvolvimento, apesar da maior ênfase dada aos mesmos no período estudado. Os resultados sugerem fraca influência dos mecanismos de apoio à P&D no Brasil sobre o aumento dos gastos privados, apesar dos avanços recentes. / This study aimed to contribute to the debate about the importance of encouraging innovation policies in Brazil. Understanding the role played by public support instruments to research and development activities in relation to private business spending has become fundamental to achieving this end. The expected results of the use that companies made of different types of instruments on spending were evaluated by the method of difference in differences. This allows you to compare, over a certain period of time, the differences in expenses between the companies that made use of any type of instrument and the companies that did not. Thus, the method yielded differences in spending between the beneficiary and nonbeneficiary firms of those instruments of three consecutive periods: 2005 compared to 2003; 2008 compared to 2005 and 2011 compared to 2008. In doing so, it was possible to identify whether these differences were positive and significant and can be attributed to the influence of the instruments. The instruments used were: tax incentives, Information Technology Law, financing partnerships, financing and grants. And their use by companies had most relevance within various programs to support innovation in force in the country from the resumption of industry and technology policy in the 2000s. The study concluded that the positive and significant effects are limited to certain technological groups and the few instruments in general tax character. In addition, these positive effects arise in one period, and for each technology group estimates were made for three periods. There was also no evidence that the financial instruments carry significant effects on spending decisions on research and development, despite the greater emphasis given to them during the study period. The results suggest weak influence of mechanisms to support R&D in Brazil on the rise in private spending, despite progress in recent years.

Made available in DSpace on 2015-03-05T13:56:58Z (GMT). No. of bitstreams: 0 Previous issue date: 20 / Hewlett-Packard Brasil Ltda / Este trabalho apresenta um modelo para extrair informações do mundo real, capturadas com a utilização de técnicas de visão computacional, no que tange acompanhamento de indivíduos, com o fim de simular e validar comportamentos de multidões de humanos virtuais. Uma grande dificuldade ao se tentar reproduzir de forma realista (por meio de simulação) o comportamento de uma multidão em um determinado espaço é informar para o modelo de simulação todos os atributos necessários para descrever o movimento das pessoas virtuais. Além das características individuais e coletivas das pessoas poderem produzir uma grande variedade de comportamentos, tornando sua modelagem complexa, o espaço também contém restrições que podem interferir no comportamento das pessoas. Neste trabalho é proposto um modelo onde pessoas do mundo real têm suas trajetórias capturadas de forma automática. Numa etapa de pós-processamento, as trajetórias capturadas são utilizadas para gerar campos de vetores velocidade que serão utilizados para aux / This study presents a model to extract information from the real world using computer vision techniques. In particular, we use tracking algorithms to extract the trajectories of filmed people, aiming to simulate and validate the behavior of virtual human crowds.A great challenge when trying to reproduce in a realistic manner (by means of simulation) the behavior of a crowd in a determined space is to inform to the simulation model all necessary attributes to describe the movement of virtual people. Individual and general features of people can produce a great variety of behaviors, making its modeling complex. Furthermore, the space also contains restrictions that can interfere on people behavior. In this study it is proposed a model in which people from the real world have their trajectories captured in an automatic manner. In a post-processing step, captured trajectories are used to generate velocity fields that will be used to help in the calculation of virtual human movement, providing more realistic s