5310188
My gasket
215887286
What next? A provocative look at curriculum, creativity and organization in teaching artists and designers to use computers
12789110
Interoperability, Distributed Applications and Distributed Databases: The Virtual Table Interface
Users of distributed databases and of distributed application frameworks require interoperation of heterogeneous data and components, respectively. In this paper, we examine how an extensible, objectrelational database system can integrate both modes of interoperability. We describe the Virtual Table Interface, a facility of the INFORMIX-Dynamic Server Universal Data Option, that provides simplified access to heterogeneous components and discuss the benefits of integrating data with application components.
16124888
GORDIAN: efficient and scalable discovery of composite keys
Identification of (composite) key attributes is of fundamental importance for many different data management tasks such as data modeling, data integration, anomaly detection, query formulation, query optimization, and indexing. However, information about keys is often missing or incomplete in many real-world database scenarios. Surprisingly, the fundamental problem of automatic key discovery has received little attention in the existing literature. Existing solutions ignore composite keys, due to the complexity associated with their discovery. Even for simple keys, current algorithms take a brute-force approach; the resulting exponential CPU and memory requirements limit the applicability of these methods to small datasets. In this paper, we describe GORDIAN, a scalable algorithm for automatic discovery of keys in large datasets, including composite keys. GORDIAN can provide exact results very efficiently for both real-world and synthetic datasets. GORDIAN can be used to find (composite) key attributes in any collection of entities, e.g., key column-groups in relational data, or key leaf-node sets in a collection of XML documents with a common schema. We show empirically that GORDIAN can be combined with sampling to efficiently obtain high quality sets of approximate keys even in very large datasets.
28759202
Creating histories
This panel invites four speakers to discuss the history of creativity and cognition. Phil Husbands talks about the pioneering group that played an important role in the emergence of cybernetics in the UK - The Ratio Club; Margaret Boden describes the history of creativity research in AI; Catherine Mason presents her research into the role that institutions played in the development of the computer arts in the UK and; Alan Sutcliffe describes his experiences as a co-founder of the influential Computer Arts Society.
2503385
Fix my street or else: using the internet to voice local public service concerns
UK local governments have invested heavily in ICT in recent years to improve public service delivery. Most local governments now operate contact centres and websites to exchange information and transactions with citizens. But the aspirations of central government go much further - to service "transformation" - and the expectation that citizens and communities will be actively engaged in service design and delivery. In parallel with this new political agenda, technological developments are enabling users to create their own online fora, and to generate their own content. These fora often address public service areas, such as healthcare, crime and education. This paper presents an evaluation of one of the first citizen-driven systems for local public service improvement in the UK: FixMyStreet.com (FMS). The system enables citizens to report, view or discuss local problems such as graffiti, fly tipping, broken paving slabs or street lighting, and to track their resolution by the local government concerned. The system went live in February 2007. FMS has attracted over 3000 problem reports and updates in its first six months, and is viewed very favourably by the citizens surveyed here. But many problems reported to the site remain "unfixed" with status "unknown". Local government officers voice a number of concerns: the site duplicates their own websites; they cannot report fixes directly to ensure the information is up-to-date; nor can they manage user expectations regarding service performance. And the site has no "sense of virtual community" (SOVC) [1], with individuals posting in isolation without the support of fellow citizens to amplify their voices or to contribute to problem resolution. The paper concludes by combining the concept of SOVC, factors identified as encouraging growth in online communities, and the example of a successful London community website, BRAIN, to suggest possible future developments for FMS and for public service fora in general.
31883432
Implicit Fitness Functions for Evolving a Drawing Robot
We describe an approach to artificially evolving a drawing robot using implicit fitness functions, which are designed to minimise any direct reference to the line patterns made by the robot. We employ this approach to reduce the constraints we place on the robot's autonomy and increase its utility as a test bed for synthetically investigating creativity. We demonstrate the critical role of neural network architecture in the line patterns generated by the robot.