15,657 research outputs found
Reflectance Transformation Imaging (RTI) System for Ancient Documentary Artefacts
This tutorial summarises our uses of reflectance transformation imaging in archaeological contexts. It introduces the UK AHRC funded project reflectance Transformation Imaging for Anciant Documentary Artefacts and demonstrates imaging methodologies
An investigation to examine the most appropriate methodology to capture historical and modern preserved anatomical specimens for use in the digital age to improve access: a pilot study
Anatomico-pathological specimens constitute a valuable component of many medical museums or
institutional collections but can be limited in their impact on account of both physical and intellectual
inaccessibility. Further concerns relate to conservation as anatomical specimens may be subject to
tissue deterioration, constraints imposed by spatial or financial limitations of the host institution, or
accident-based destruction. In awareness of these issues, a simple and easily implementable
methodology to increase accessibility, impact and conservation of anatomical specimens is proposed
which combines photogrammetry, object virtual reality (object VR), and interactive portable document
format (PDF) with supplementary historical and anatomical commentary. The methodology was
developed using wet, dry, and plastinated specimens from the historical and modern collections in the
Museum of Anatomy at the University of Glasgow. It was found that photogrammetry yielded excellent
results for plastinated specimens and showed potential for dry specimens, while object VR produced
excellent photorealistic virtual specimens for all materials visualised. Use of PDF as output format was
found to allow for the addition of textual, visual, and interactive content, and as such supplemented the
virtual specimen with multidisciplinary information adaptable to the needs of various audiences. The
results of this small-scale pilot study indicate the beneficial nature of combining these established
techniques into a methodology for the digitisation and utilisation of historical anatomical collections in
particular, but also collections of material culture more broadly
From Keyword Search to Exploration: How Result Visualization Aids Discovery on the Web
A key to the Web's success is the power of search. The elegant way in which search results are returned is usually remarkably effective. However, for exploratory search in which users need to learn, discover, and understand novel or complex topics, there is substantial room for improvement. Human computer interaction researchers and web browser designers have developed novel strategies to improve Web search by enabling users to conveniently visualize, manipulate, and organize their Web search results. This monograph offers fresh ways to think about search-related cognitive processes and describes innovative design approaches to browsers and related tools. For instance, while key word search presents users with results for specific information (e.g., what is the capitol of Peru), other methods may let users see and explore the contexts of their requests for information (related or previous work, conflicting information), or the properties that associate groups of information assets (group legal decisions by lead attorney). We also consider the both traditional and novel ways in which these strategies have been evaluated. From our review of cognitive processes, browser design, and evaluations, we reflect on the future opportunities and new paradigms for exploring and interacting with Web search results
Video Data Visualization System: Semantic Classification And Personalization
We present in this paper an intelligent video data visualization tool, based
on semantic classification, for retrieving and exploring a large scale corpus
of videos. Our work is based on semantic classification resulting from semantic
analysis of video. The obtained classes will be projected in the visualization
space. The graph is represented by nodes and edges, the nodes are the keyframes
of video documents and the edges are the relation between documents and the
classes of documents. Finally, we construct the user's profile, based on the
interaction with the system, to render the system more adequate to its
references.Comment: graphic
Leading Undergraduate Students to Big Data Generation
People are facing a flood of data today. Data are being collected at
unprecedented scale in many areas, such as networking, image processing,
virtualization, scientific computation, and algorithms. The huge data nowadays
are called Big Data. Big data is an all encompassing term for any collection of
data sets so large and complex that it becomes difficult to process them using
traditional data processing applications. In this article, the authors present
a unique way which uses network simulator and tools of image processing to
train students abilities to learn, analyze, manipulate, and apply Big Data.
Thus they develop students handson abilities on Big Data and their critical
thinking abilities. The authors used novel image based rendering algorithm with
user intervention to generate realistic 3D virtual world. The learning outcomes
are significant
Revisiting revisitation in computer interaction: organic bookmark management.
According to Milic-Frayling et al. (2004), there are two general ways of user browsing i.e. search (finding a website where the user has never visited before) and revisitation (returning to a website where the user has visited in the past). The issue of search is relevant to search engine technology, whilst revisitation concerns web usage and browser history mechanisms. The support for revisitation is normally through a set of functional built-in icons e.g. History, Back, Forward and Bookmarks. Nevertheless, for returning web users, they normally find it is easier and faster to re-launch an online search again, rather than spending time to find a particular web site from their personal bookmark and history records. Tauscher and Greenberg (1997) showed that revisiting web pages forms up to 58% of the recurrence rate of web browsing. Cockburn and McKenzie (2001) also stated that 81% of web pages have been previously visited by the user. According to Obendorf et al. (2007), revisitation can be divided into four classifications based on time: short-term (72.6% revisits within an hour), medium-term (12% revisits within a day and 7.8% revisits within a week), and long-term (7.6% revisits longer than a week)
Time machines.
The chapter is concerned with the use of computers to represent historical time visually, typically as âtimelinesâ. Research into the sophisticated practice and theory of early modern paper timelines in the eighteenth century reveals the weakness of current practice, especially on the Web. Behind the work of the early pioneers lay a vision of mechanising knowledge. At that time, this proved a productive metaphor, but in our own time the mechanistic properties of computers have tended to encourage an approach to visualising history that excludes all but the crudest aspects. Solutions are needed which use computing in ways that do justice to the demands of historiography
DGD Gallery: Storage, sharing, and publication of digital research data
We describe a project, called the "Discretization in Geometry and Dynamics
Gallery", or DGD Gallery for short, whose goal is to store geometric data and
to make it publicly available. The DGD Gallery offers an online web service for
the storage, sharing, and publication of digital research data.Comment: 19 pages, 8 figures, to appear in "Advances in Discrete Differential
Geometry", ed. A. I. Bobenko, Springer, 201
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