Ohjaamaton koneoppiminen tapahtumakategorisoinnissa liiketoimintatiedon hyödyntämisessä

The data and information available for business intelligence purposes is increasing rapidly in the world. Data quality and quantity are important for making the correct business decisions, but the amount of data is becoming difficult to process. Different machine learning methods are becoming an increasingly powerful tool to deal with the amount of data. One such machine learning approach is the automatic annotation and location of business intelligence relevant actions and events in news data. While studying the literature of this field, it however became clear, that there exists little standardization and objectivity regarding what types of categories these events and actions are sorted into. This was often done in subjective, arduous manners. The goal of this thesis is to provide information and recommendations on how to create more objective, less time consuming initial categorizations of actions and events by studying different common unsupervised learning methods for this task. The relevant literature and theory to understand the followed research and methodology is studied. The context and evolution of business intelligence to today is considered, and specially its relationship to the big data problem of today is studied. This again relates to the fields of machine learning, artificial intelligence, and especially natural language programming. The relevant methods of these fields are covered to understand the taken steps to achieve the goal of this thesis. All approaches aided in understanding the behaviour of unsupervised learning methods, and how it should taken into account in the categorization creation. Different natural language preprocessing steps are combined with different text vectorization methods. Specifically, three different text tokenization methods, plain, N-gram, and chunk tokenizations are tested with two popular vectorization methods: bag-of-words and term frequency inverse document frequency vectorizations. Two types of unsupervised methods are tested for these vectorizations: Clustering is a more traditional data subcategorization process, and topic modelling is a fuzzy, probability based method for the same task. Out of both learning methods, three different algorithms are studied by the interpretability and categorization value of their top cluster or topic representative terms. The top term representations are also compared to the true contents of these topics or clusters via content analysis. Out of the studied methods, plain and chunk tokenization methods yielded the most comprehensible results to a human reader. Vectorization made no major difference regarding top term interpretability or contents and top term congruence. Out of the methods studied, K-means clustering and Latent Dirichlet Allocation were deemed the most useful in event and action categorization creation. K-means clustering created a good basis for an initial categorization framework with congruent result top terms to the contents of the clusters, and Latent Dirichlet Allocation found latent topics in the text documents that provided serendipitous, fruitful insights for a category creator to take into account

Cultural Heritage on line

The 2nd International Conference "Cultural Heritage online – Empowering users: an active role for user communities" was held in Florence on 15-16 December 2009. It was organised by the Fondazione Rinascimento Digitale, the Italian Ministry for Cultural Heritage and Activities and the Library of Congress, through the National Digital Information Infrastructure and Preservation Program - NDIIP partners. The conference topics were related to digital libraries, digital preservation and the changing paradigms, focussing on user needs and expectations, analysing how to involve users and the cultural heritage community in creating and sharing digital resources. The sessions investigated also new organisational issues and roles, and cultural and economic limits from an international perspective

To be Young! : Youth and the Future. Proceedings of the Conference “To be Young! Youth and the Future”, 6–8 June 2012, Turku, Finland

What does it mean to be young today and what will it mean in the coming years in this rapidly changing world? What the future of youth could be and look like? The aim of the “To be Young” conference in July 2012 was to perceive and create futures through the eyes of today’s youth, adults and decision makers for the young people of the future. The course of a youth’s life, both today and toward the future covers an entire spectrum of reality. Focusing on faith in young people, their ability and determination to build an inevitably different and in many ways and hopefully improved world for us all to live in was the focal point of this conference. This book collects some of the presentations and papers presented in the conference. Articles selected in this book cover several approaches of youth research. Topics include politics, education, gender questions, futures methodologies, young immigrants just to mention a few. We thank the authors and referees for their work. The conference was organized in association with the Finland Futures Academy and the Finnish Youth Research Network. The “To Be Young” conference marked Finland Futures Research Centre’s 14th Annual International Conference and its 20th Anniversary celebrating twenty years of academic research, education and development work

Hacking the web 2.0: user agency and the role of hackers as computational mediators

This thesis studies the contested reconfigurations of computational agency within the domain of practices and affordances involved in the use of the Internet in everyday life (here labelled lifeworld Internet), through the transition of the Internet to a much deeper reliance on computation than at any previous stage. Computational agency is here considered not only in terms of capacity to act enabled (or restrained) by the computational layer but also as the recursive capacity to reconfigure the computational layer itself, therefore in turn affecting one’s own and others’ computational agency. My research is based on multisited and diachronic ethnographic fieldwork: an initial (2005–2007) autoethnographic case study focused on the negotiations of computational agency within the development of a Web 2.0 application, later (2010–2011) fieldwork interviews focused on processes through which users make sense of the increasing pervasiveness of the Internet and of computation in everyday life, and a review (2010–2015) of hacker discourses focused on tracing the processes through which hackers constitute themselves as a recursive public able to inscribe counter–narratives in the development of technical form and to reproduce itself as a public of computational mediators with capacity to operate at the intersection of the technical and the social. By grounding my enquiry in the specific context of the lifeworlds of individual end users but by following computational agency through global hacker discourses, my research explores the role of computation, computational capacity and computational mediators in the processes through which users ‘hack’ their everyday Internet environments for practical utility, or develop independent alternatives to centralized Internet services as part of their contestation of values inscribed in the materiality of mainstream Internet

I aint me no more, nor my house my house no more: la PAH's micropolitics of semiosis & the premises of radical democracy

During the years that followed 15M, the 2011 uprising in the networks and plazas of Spanish cities, la PAH has been a groundbreaking example of a multilayer organizational process that has risen to the historical challenge of empowering people to act together in the face of the crisis of representation. The initial letters P, A and H stand for Plataforma de Afectados por la Hipoteca, translated roughly as the Platform of People Affected by Mortgages. As indicated by its name, the movement was founded as an organization for mortgage defaulters. In a conjuncture of rising unemployment and the 'working poor' on one hand, the tide of politicization that swept through the Spanish society in 2011 on the other, la PAH soon grew into a wider movement for the right to housing. Today it continues to evolve, looking to become an even more transversal movement with capacity to criticise and create political pressure within the reigning political system in the wider sense. This contribution to the study of la PAH, and the grassroots practices of political organisation in general, was born through two years of collective struggle with a local PAH group in the Southern Madrid district of Vallekas. It focuses on the semiotic dimension of collective action as fundamental to the empowerment of its members and the key to the organisational success of la PAH. The semiotic production la PAH carries forth is, therefore, discussed as an intrinsic part of the micropolitics of the group and an important factor in the continuous negotiation of the ethics of collective action. My findings indicate that while these questions are awoken within the partial field of housing politics, they are impregnated with such a subversion that they often overflow into other areas of life of the members of la PAH, making them critically evaluate the society, their relationship with themselves and with the others. This is, first and foremost, a study born in and from extended participation in the movement and motivated by the idea of helping to localize problems that need to be resolved in PAH itself. Furthermore I hope it will be useful for other groups and organizational processes in the common struggle against global debt governance in their communities

Street Furniture and the Nation State: A Global Process

In the popular imagination, street furniture has traditionally been understood as evoking a sense of national or local identity. From Paris’ metro entrances, DDR lampposts in Berlin, and London’s york stone pavements, the designed environment has been able to contribute to the unique qualities of a place. In some instances this was deliberate. In postwar Britain for instance, the Council of Industrial Design – a state-funded design organization - often appeared to measure the quality of street furniture on the basis of its national characteristics. On other occasions, the relationship between such objects and identity emerged accidentally. In Britain during the 1980s, for example, the replacement of Gilbert Scott's red telephone box with an alternative BT model provoked considerable debate. For many people, this act was not just a Conservative attack on nationalization and state-ownership, but also on the very fabric of British identity. This understanding of street furniture has retained its currency for many years, and cities across the world have used street furniture to provide a sense of visual coherency for neighbourhoods in need of new identities, strengthening their character and improving the public's relationship to them. In this way, street furniture has been employed as a cipher for the narrative of regeneration, in which - as a means of altering the identity of a space - street furniture can project a new face upon the street. Increasingly however, advertising companies are able to lever themselves into the street furniture market by offering to provide the service to the local authorities for free in return for advertising space. In offering this service, global companies like JC Decaux, Wall and Clear Channel command a huge amount of commercial power within the city. The excessive homogenization of street furniture coupled with the overwhelming presence of advertising which is increasingly sanctioned by local authorities keen to reduce costs, has resulted in the perception of poorer quality streets. Thus, the irony of regeneration is that by seeking to promote the unique identity of a city, many places often end up looking more and more alike. This paper will examine recent developments in the process by which the street is furnished and the agents responsible. It will specifically look at how these changes have affected the relationship between street furniture and identity, and equally the effect this process has had on understandings of national design histories. Clearly, evaluating contemporary street furniture through the lens of the nation-state is of very little value, since the international differences between street furniture are considerably less marked than they used to be. This extraordinary aesthetic convergence is partly linked to economies of scale - after all, just how many different kinds of bus stop can Europe afford to have? Yet it also reflects some of the challenges posed by globalization and privatization of public space. This paper will reflect upon that process, and how these bigger narratives increasingly affect the landscape of the street

Transforming Culture in the Digital Age International Conference in Tartu 14-16 April 2010

A short history of cultural participation by Nico Carpentier Accessible Digital Culture for Disabled People by Marcus Weisen Understanding Visitors’ Experiences with Multimedia Guides in Cultural Spaces by Kamal Othman, Helen Petrie & Christopher Power Can you be friends with an art museum? Rethinking the art museum through Facebook by Lea Schick & Katrine Damkjær On Scientific Mentality in Cultural Memory by Raffaele Mascella & Paolo Lattanzio Paranoid, not an Android: Dystopic and Utopic Expressions in Playful Interaction with Technology and everyday surroundings by Maaike de Jong Theorizing Web 2.0: including local to become universal by Selva Ersoz Karakulakoglu How Web 3.0 combines User-Generated and Machine-Generated Content by Stijn Bannier & Chris Vleugels Artificial Culture as a Metaphor and Tool by Kurmo Konsa Playful Public Connectivity by Anne Kaun Habermasian Online Debate of a Rational Critical Nature: Transforming Political Culture. A case study of the “For Honesty in Politics!” message group Latvia, 2007 by Ingus Bērziņš Transformation of Cultural Preferences in Estonia by Maarja Lõhmus & Anu Masso Taste 2.0. Social Network Site as Cultural Practice by Antonio Di Stefano Online Communication A New Battlefield for Forming Elite Culture in China by Nanyi Bi Internet, blogs and Social Networks for Independent and Personal Learning of Information Theory and Other Subjects in Journalism, Advertising and Media by Graciela Padilla & Eva Aladro The Artist and Digital Self-presentation: a Reshuffle of Authority? by Joke Beyl Communicative Image Construction in Online Social Networks. New Identity Opportunities in the Digital Age by Bernadette Kneidinger Digital Identity: The Private and Public Paradox by Stacey M. Koosel Mystory in Myspace Rhetoric of Memory in New Median by Petra Aczél Life Publishing on the internet – a playful field of life-telling by Sari Östman From the Gutenberg Galaxy to the Internet Galaxy. Digital Textuality and the Change of Cultural Landscape by Raine Koskimaa The “Open” Ideology of Digital Culture by Robert Wilkie Digital Poetry and/in the Poetics of the Automatic by Juri Joensuu Re: appearing and Disappearing Classics. Case Study on Poetics of Two Digital Rewritings by a Finnish Poet by Marko Niemi, Kristian Blomberg Cybertextuality meets transtextuality by Markku Eskelinen Metafictionality and deterritorilization of the literary in the hypertexts by Anna Wendorff The Public Sphere of Poetry and the Art of Publishing by Risto Niemi-Pynttäri Solitude in Cyberspace by Piret Viires & Virve Sarapik Reprogramming Systems Aesthetics: A Strategic Historiography by Edward A. Shanken Stepping towards the immaterial: Digital technology revolutionizing art by Christina Grammatikopoulou Creativity in Surveillance Environment: Jill Magid and the Integrated Circuit by Amy Christmas Audience Interaction in the Cinema: An Evolving Experience by Chris Hales Delay and non-materiality in telecommunication art by Raivo Kelomees Robot: Ritual Oracle and Fetish by Thomas Riccio Digital art and children’s formal and informal practices: Exploring curiosities and challenging assumptions by Steven Naylor Locative Media and Augmented Reality: Bridges and Borders between Real and Virtual Spaces by Marisa Luisa Gómez Martíne

Tagungsband der Beiträge 2020 als pdf

Der Tagungsband 2020 kann auch als Gesamt-PDF heruntergeladen werden