Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Improving Interaction with Virtual Globes through Spatial Thinking:
  Helping Users Ask "Why?"   Virtual globes have progressed from little-known technology to broadly
popular software in a mere few years. We investigated this phenomenon through a
survey and discovered that, while virtual globes are en vogue, their use is
restricted to a small set of tasks so simple that they do not involve any
spatial thinking. Spatial thinking requires that users ask "what is where" and
"why"; the most common virtual globe tasks only include the "what". Based on
the results of this survey, we have developed a multi-touch virtual globe
derived from an adapted virtual globe paradigm designed to widen the potential
uses of the technology by helping its users to inquire about both the "what is
where" and "why" of spatial distribution. We do not seek to provide users with
full GIS (geographic information system) functionality, but rather we aim to
facilitate the asking and answering of simple "why" questions about general
topics that appeal to a wide virtual globe user base.

15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph