Deep Search ll: Panel 4, Contextual Modeling and closing discussion
Posted: July 11, 2010 at 5:04 pm | By: Shirley Niemans | Tags: database, Deep Search, Search Engines, semantic web
Panel 4: Contextual Modeling
An unstorable and unmanageable amount of data is coming at us, bringing with it a host of new strategies for grasping and analyzing the huge amount of bits and bites, such as visualization models.
mc schraefel: Beyond Keyword Search
Dr schraefel is reader in the Intelligence, Agents and Multimedia Group at the University of Southampton, UK
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Schraefel first emphasizes that in contrast to what people may assume from a visualization expert, she is not ‘in love with graphs’ and actually most of the time, big fat graphs suck. The research she will present here deals with the circumstances of serendipity. Following the idea that ‘fate favors the prepared mind’, she argues that discoveries never happen by chance and an important challenge lies in designing tools that support serendipitous discovery.
She then presents the audience with a 1987 video by Apple computers, which introduces the ‘Knowledge Navigator’; a tablet-like personal device with a natural language interface, a virtual ‘digital assistant’ and access to a global network of information. Outdated as the device may seem today, the digital assistant seemed able to create graphs by getting data out of its embodied context (such as other people’s documents), and be mined and combined to answer a variety of questions. In 1987, schraefel comments, this was a vision of exploration, heterogeneous sources, representation and integration that still inspires research into knowledge building today.
Schraefel notes how Google is the current search paradigm – “what else do you need?”. Drawing a parallel, she notes how Newton’s model of Mathematica set the tone for seeing the world for ages until it turned out that in some spaces, the model was flawed. It is much the same with Google’s document-centric, single source search without interrelations – the model frames the questions that may be asked. In order to enable knowledge gathering, we need a different one.
In a 2005 Scientific American article, Tim Berners-Lee, Ora Lassiler and Jim Hendler introduced machine readable mark-up and the Semantic Web as a new paradigm that moved away from keyword search and toward structured data and ontologies. Ontologies in this sense are subject-predicate-object joints, such as a composer-is a–person, or a person-has a-name etcetera. By giving data a rich (and often multiple) metadata context and using some logic, one may infer properties to objects that are not explicitly labeled, and enable knowledge gathering from heterogeneous sources.
Does this imply a reprise of Victorian taxonomies? Nope, quoting schraefel: “it is more pomo than that”, objects are described from multiple contexts. There is no über-ontology and we are slowly learning to be ‘ok’ with the fact that we don’t know everything controllably, and be messy. Following Berners-Lee, she emphasized the importance of liberating our data; placing sources freely on the web so that we may ask questions other than the document kind, and create information rather than merely retrieve it.























