Group items tagged

"The debate within the Web community over the optimal means by which to organize information often pits formalized classications against distributed collaborative tagging systems. A number of questions remain unanswered, however, regarding the nature of collaborative tagging systems including whether coherent categorization schemes can emerge from unsupervised tagging by users. This paper uses data from the social bookmarking site del.icio.us to examine the dynamics of collaborative tagging systems. In particular, we examine whether the distribution of the frequency of use of tags for “popular” sites with a long history (many tags and many users) can be described by a power law distribution, often characteristic of what are considered complex systems. We produce a generative model of collaborative tagging in order to understand the basic dynamics behind tagging, including how a power law distribution of tags could arise. We empirically examine the tagging history of sites in order to determine how this distribution arises over time and to determine the patterns prior to a stable distribution. Lastly, by focusing on the high-frequency tags of a site where the distribution of tags is a stabilized power law, we show how tag co-occurrence networks for a sample domain of tags can be used to analyze the meaning of particular tags given their relationship to other tags."

The paper shows that the tags users choose are not chaotic, but rather quickly converge to a common descriptive set of tags that is almost unchanging over time. Perhaps once the tags have stabilized, coherent URI-based identification schemes could emerge?

Nice paper, thanks. Categories / tags / subjects / topics / issues ... that's what I'm working with right now. p.s. sure would be nice if the email notification included the source URL. I'm far more likely to download the PDF when I see something like www2007.org/paper635.pdf

Over the past two decades, more people have been lifted out of poverty in Asia than in any other region at any other time in history. In the next decade, there is the chance to fulfil the potential of this success story - the world is presented with an historic opportunity to end poverty in Asia .

PMOG is an infinite game built on individual network histories, transforming our web surfing into ongoing social play. With a game head-up display in Firefox, players can bomb each other, wage war over web sites, and lead other users on web missions. Ordinary web sites become caches for items and currency. PMOG fuses an MMO into our WWW. PMOG stands for Passively Multiplayer Online Game. Players play without playing; clicking around the internet turns into experience points and currency. This unconventional massively multiplayer online game merges your web life with an alternate, hidden reality. The mundane takes on a layer of fantastic achievement. Player behavior generates characters and alliances, triggers interactions in the environment, and earns the player points to spend online beefing up their inventory. Suddenly the internet is not a series of untouchable exhibits, but a hackable, rewarding environment.

The World Federation of UN Associations is an independent, non-governmental organization with Category One Consultative Status at the Economic and Social Council (ECOSOC) and consultative or liaison links with many other UN organizations and agencies. The Millennium Project functions under the auspices of WFUNA. The Millennium Project of WFUNA is a global participatory futures research think tank of futurists, scholars, business planners, and policy makers who work for international organizations, governments, corporations, NGOs, and universities. The Millennium Project manages a coherent and cumulative process that collects and assesses judgements from its several hundred participants to produce the annual "State of the Future", "Futures Research Methodology" series, and special studies such as the State of the Future Index, Future Scenarios for Africa, Lessons of History, Environmental Security, Applications of Futures Research to Policy, and a 700+ annotated scenarios bibliography.

Bringing Wisdom to Emerging Technology We are at an amazing and critical juncture in human history. If we continue on our current path, we face many potential disasters: overpopulation, shortages of water, oil, and raw materials, financial instability, disease, terrorism, war, and the destruction of species and ecosystems (eg. see Jeffrey Sachs "Common Wealth: Economics for a Crowded Planet"). But the next few decades will also bring advances in science and technology which may dramatically improve our lives. It is remarkable that we are simultaneously on the verge of major revolutions in biology, neuroscience, psychology, artificial intelligence, nanotechnology, and fundamental physics.

The Open Knowledge Definition (OKD) sets out principles to define the 'open' in open knowledge. The term knowledge is used broadly and it includes all forms of data, content such as music, films or books as well any other type of information. In the simplest form the definition can be summed up in the statement that "A piece of knowledge is open if you are free to use, reuse, and redistribute it". For details read the latest version of the full definition (with explanatory annotations). The history page includes a changelog and links to all previous versions.

The Open Knowledge Definition (OKD) sets out principles to define the 'open' in open knowledge. The term knowledge is used broadly and it includes all forms of data, content such as music, films or books as well any other type of information. In the simplest form the definition can be summed up in the statement that "A piece of knowledge is open if you are free to use, reuse, and redistribute it". For details read the latest version of the full definition (with explanatory annotations). The history page includes a changelog and links to all previous versions.

Metre-wide cracks in the ground suddenly split open, as red-hot rock and ash are thrown violently into the air amid searing temperatures. It's like a vision of how the Earth behaved in prehistoric times. Except these events have happened within the last three years in Ethiopia's Afar region. What's more, a matter of days ago there was more extreme volcanic activity there, with reports of the country's biggest eruption to date - and the largest recorded lava flow in scientific history.

The World Public Forum begins its history in 2002 when representatives of civil society from Russia, India and Greece organized the International Program "Dialogue of Civilizations". Vladimir Yakunin, Jagdish Kapur and Nicolas Papanicolaou have become founders and co-chairmen of the Forum. The forum "Dialogue of civilizations" has become a practical realization of the UNGA resolution "Global Agenda for Dialogue among Civilizations" accepted on November 9th, 2001 at the initiative of the President of the Islamic Republic of Iran Mohammad Khatami.

A Digital Village is a space where a community expresses their identity though ICT and Digital Media. This may be from an artistic, heritage, or economic perspective or a mixture of all three.This can be done through poetry, digital stories, community newspapers online, image collections (old and new), audio (Internet radio, oral history), animations, video, and text. To engage in the activities the participants need to learn new skills and so the Digital Village also becomes a learning community.

This exploratory study examines the relationships between article and Talk page contributions and their effect on article quality in Wikipedia. The sample consisted of three articles each from the hard sciences, soft sciences, and humanities, whose talk page and article edit histories were observed over a five-month period and coded for contribution types. Richness and neutrality criteria were then used to assess article quality and results were compared within and among subject disciplines. This study reveals variability in article quality across subject disciplines and a relationship between Talk page discussion and article editing activity. Overall, results indicate the initial article creator's critical role in providing a framework for future editing as well as a remarkable stability in article content over time.

Biophysical economics is characterized by a wide range of analysts from diverse fields who use basic ecological and thermodynamic principles to analyze the economic process. The history of biophysical thought is traced from the 18th-century Physiocrats to current empirical research, with emphasis on those individuals who contributed to the development of biophysical economic theory. Attention is also given to a critique of the neoclassical theory of natural resources from a biophysical perspective, and how recent empirical biophysical research highlights areas of neoclassical theory which could be improved by a more realistic and systematic treatment of natural resources.

This paper surveys information architecture in the context of digital libraries. Key concepts are defined as well as common attributes of information architectures in general. Communications standards - including hybrid TCP/IP-OSI, CORBA, and Web services - are explored, as well as the history of information architecture and related models. A number of digital library projects are analyzed with a focus on their distinct architectures. The key role of information architecture in the design and development of the twenty-first century digital library is detailed throughout.

complex brains and sophisticated cognition have arisen multiple times in independent lineages of animals during the earth's evolutionary history.

The Society for Integrative and Comparative Biology (SICB) is one of the largest and most prestigious professional associations of its kind. Formed as the American Society of Zoologists through a 1902 merger of two societies, the Central Naturalists and the American Morphological Society, its focus has remained to integrate the many fields of specialization which occur in the broad field of biology. Throughout most of its history the society was known as the American Society of Zoologists and changed its name to the Society for Integrative and Comparative Biology in 1996 to reflect the scientific breadth, integrative approaches, and interests of its membership across all disciplines of biology. The SICB is organized around disciplinary divisions, each relevant to a major segment of biology.

This article posits a definition and theory for "Library 2.0". It suggests that recent thinking describing the changing Web as "Web 2.0" will have substantial implications for libraries, and recognizes that while these implications keep very close to the history and mission of libraries, they still necessitate a new paradigm for librarianship. The paper applies the theory and definition to the practice of librarianship, specifically addressing how Web 2.0 technologies such as synchronous messaging and streaming media, blogs, wikis, social networks, tagging, RSS feeds, and mashups might intimate changes in how libraries provide access to their collections and user support for that access.

10 Pillars of Knowledge is a systematic map of human knowledge. It presents, at a glance, the structure of knowledge and the meaningful relations among the main fields. Human knowledge is composed of 10 pillars: Foundations, Supernatural, Matter and Energy, Space and Earth, Non-Human Organisms, Body and Mind, Society, Thought and Art, Technology, History

While news from Iran streams to the world, Clay Shirky shows how Facebook, Twitter and TXTs help citizens in repressive regimes to report on real news, bypassing censors (however briefly). The end of top-down control of news is changing the nature of politics.

The Tree of Life Web Project (ToL) is a collaborative effort of biologists and nature enthusiasts from around the world. On more than 10,000 World Wide Web pages, the project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history (phylogeny). Each page contains information about a particular group, e.g., salamanders, segmented worms, phlox flowers, tyrannosaurs, euglenids, Heliconius butterflies, club fungi, or the vampire squid. ToL pages are linked one to another hierarchically, in the form of the evolutionary tree of life. Starting with the root of all Life on Earth and moving out along diverging branches to individual species, the structure of the ToL project thus illustrates the genetic connections between all living things.

A fantastic read to wake up your brain and help it see the trappings of false illusions and patterns around you.