This open access book provides an introduction and an overview of learning to quantify (a.k.a. “quantification”), i.e. the task of training estimators of class proportions in unlabeled data by means ...of supervised learning. In data science, learning to quantify is a task of its own related to classification yet different from it, since estimating class proportions by simply classifying all data and counting the labels assigned by the classifier is known to often return inaccurate (“biased”) class proportion estimates. The book introduces learning to quantify by looking at the supervised learning methods that can be used to perform it, at the evaluation measures and evaluation protocols that should be used for evaluating the quality of the returned predictions, at the numerous fields of human activity in which the use of quantification techniques may provide improved results with respect to the naive use of classification techniques, and at advanced topics in quantification research. The book is suitable to researchers, data scientists, or PhD students, who want to come up to speed with the state of the art in learning to quantify, but also to researchers wishing to apply data science technologies to fields of human activity (e.g., the social sciences, political science, epidemiology, market research) which focus on aggregate (“macro”) data rather than on individual (“micro”) data.
Wikipedia’s first twenty years: how what began as an experiment in collaboration became the world’s most popular reference work.
We have been looking things up in Wikipedia for twenty years. What ...began almost by accident—a wiki attached to a nascent online encyclopedia—has become the world’s most popular reference work. Regarded at first as the scholarly equivalent of a Big Mac, Wikipedia is now known for its reliable sourcing and as a bastion of (mostly) reasoned interaction. How has Wikipedia, built on a model of radical collaboration, remained true to its original mission of “free access to the sum of all human knowledge” when other tech phenomena have devolved into advertising platforms? In this book, scholars, activists, and volunteers reflect on Wikipedia’s first twenty years, revealing connections across disciplines and borders, languages and data, the professional and personal.
The contributors consider Wikipedia’s history, the richness of the connections that underpin it, and its founding vision. Their essays look at, among other things, the shift from bewilderment to respect in press coverage of Wikipedia; Wikipedia as “the most important laboratory for social scientific and computing research in history”; and the acknowledgment that “free access” includes not just access to the material but freedom to contribute—that the summation of all human knowledge is biased by who documents it.
Contributors
Phoebe Ayers, Omer Benjakob, Yochai Benkler, William Beutler, Siko Bouterse, Rebecca Thorndike-Breeze, Amy Carleton, Robert Cummings, LiAnna L. Davis, Siân Evans, Heather Ford, Stephen Harrison, Heather Hart, Benjamin Mako Hill, Dariusz Jemielniak, Brian Keegan, Jackie Koerner, Alexandria Lockett, Jacqueline Mabey, Katherine Maher, Michael Mandiberg, Stephane Coillet-Matillon, Cecelia A. Musselman, Eliza Myrie, Jake Orlowitz, Ian A. Ramjohn, Joseph Reagle, Anasuya Sengupta, Aaron Shaw, Melissa Tamani, Jina Valentine, Matthew Vetter, Adele Vrana, Denny Vrandečić
Making and taking information Huvila, Isto
Journal of the Association for Information Science and Technology,
April 2022, Letnik:
73, Številka:
4
Journal Article
Recenzirano
Odprti dostop
Information behavior theory covers different aspects of the totality of information‐related human behavior rather unevenly. The transitions or trading zones between different types of information ...activities have remained perhaps especially under‐theorized. This article interrogates and expands a conceptual apparatus of information making and information taking as a pair of substantial concepts for explaining, in part, the mobility of information in terms of doing that unfolds as a process of becoming rather than of being, and in part, what is happening when information comes into being and when something is taken up for use as information. Besides providing an apparatus to describe the nexus of information provision and acquisition, a closer consideration of the parallel doings opens opportunities to enrich the inquiry of the conditions and practice of information seeking, appropriation, discovery, and retrieval as modes taking, and learning and information use as its posterities.
Toward Precision Medicine National Research Council; Division on Earth and Life Studies; Board on Life Sciences ...
12/2011
eBook
Odprti dostop
Motivated by the explosion of molecular data on humans-particularly data associated with individual patients-and the sense that there are large, as-yet-untapped opportunities to use this data to ...improve health outcomes, Toward Precision Medicine explores the feasibility and need for "a new taxonomy of human disease based on molecular biology" and develops a potential framework for creating one.
The book says that a new data network that integrates emerging research on the molecular makeup of diseases with clinical data on individual patients could drive the development of a more accurate classification of diseases and ultimately enhance diagnosis and treatment. The "new taxonomy" that emerges would define diseases by their underlying molecular causes and other factors in addition to their traditional physical signs and symptoms. The book adds that the new data network could also improve biomedical research by enabling scientists to access patients' information during treatment while still protecting their rights. This would allow the marriage of molecular research and clinical data at the point of care, as opposed to research information continuing to reside primarily in academia.
Toward Precision Medicine notes that moving toward individualized medicine requires that researchers and health care providers have access to very large sets of health- and disease-related data linked to individual patients. These data are also critical for developing the information commons, the knowledge network of disease, and ultimately the new taxonomy.
Everyday Information Aspray, William; Hayes, Barbara M; Yost, Jeffrey R ...
03/2011
eBook
All day, every day, Americans seek information. We research major purchases. We check news and sports. We visit government Web sites for public information and turn to friends for advice about our ...everyday lives. Although the Internet influences our information-seeking behavior, we gather information from many sources: family and friends, television and radio, books and magazines, experts and community leaders. Patterns of information seeking have evolved throughout American history and are shaped by a number of forces, including war, modern media, the state of the economy, and government regulation. This book examines the evolution of information seeking in nine areas of everyday American life.Chapters offer an information perspective on car buying, from the days of the Model T to the present; philanthropic and charitable activities; airline travel and the complex layers of information available to passengers; genealogy, from the family Bible to Ancestry.com; sports statistics, as well as fantasy sports leagues and their fans' obsession with them; the multimedia universe of gourmet cooking; governmental and publicly available information; reading, sharing, and creating comics; and text messaging among young people as a way to exchange information and manage relationships. Taken together, these case studies provide a fascinating window on the importance of information in the past century of American life.
Based on literature from the domains of organization science, marketing, accounting, and management information systems, this review article examines the theoretical basis of the information overload ...discourse and presents an overview of the main definitions, situations, causes, effects, and countermeasures. It analyzes the contributions from the last 30 years to consolidate the existing research in a conceptual framework and to identify future research directions.
Over the last five years, widespread concern about the effects of social media on democracy has led to an explosion in research from different disciplines and corners of academia. This book is the ...first of its kind to take stock of this emerging multi-disciplinary field by synthesizing what we know, identifying what we do not know and obstacles to future research, and charting a course for the future inquiry. Chapters by leading scholars cover major topics – from disinformation to hate speech to political advertising – and situate recent developments in the context of key policy questions. In addition, the book canvasses existing reform proposals in order to address widely perceived threats that social media poses to democracy. This title is also available as Open Access on Cambridge Core.
Library education is changing. At a time when librarianship is increasingly seen as part of the information industry, Library and Information Science is also searching for its place in a new and ...rapidly developing university landscape.
This book analyzes the development of the contemporary university in light of present critical social theory, focusing on such aspects as academic acceleration, organizational accretion and the rise of an ”entrepreneurial spirit,” all of which have both epistemological and organizational consequences. Library and Information Science has proven well-suited to meet this development. One way has been through the rapid international growth of the iSchool movement, now counting close to a hundred member schools all across the world. iSchools not only meet the requirements of contemporary university development, but also contribute to a recontextualization of librarianship and library education. As the iSchool movement relates to a view of information as a commodity and the ”iField” to increased economic growth, it recontextualizes the library sector, traditionally connected to democratic development based on the ideas of the Enlightenment.
Educating librarians in the Contemporary University is written from a European perspective, and examples such as the EU research platform, Horizon 2020, Government Research Proposals, and policy documents from European iSchools are used in an attempt to understand the current development in Library and Information Science and its relevance for librarianship. As the European Research and Development Sector increasingly connects universities to the solution of various ”social challenges” with emphasis on commercial collaborations, the view on knowledge and use of university resources are affected in a way which seemingly make critical analyses difficult.
Questions are asked about the relation between iSchools, late capitalism and the development of Critical Librarianship. Is there a way of fulfilling the ambitions of the critical theory classics and achieve research and an education environment which encourage emancipatory goals within the iSchool movement?
Enabling Things to Talk Bassi, Alessandro; Bauer, Martin; Fiedler, Martin ...
2013, 2013-10-28
eBook
This volume presents the results of a flagship European Commission project to map the conceptual reference model for the Internet of Things. It sets out an agreed IoT architecture of maximal ...interoperability, ready for use in real-world network development.
The report gives an insight into the potential architecture of a European Forest Information System, its system components and potential applications. A demonstration version was built and tested ...with various data types. Options are presented on how an operational forest information system could run within a network of distributed datasets.
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