Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Preprint Virtual Reality Assistant Technology for Learning Primary
  Geography   This is the preprint version of our paper on ICWL2015. A virtual reality
based enhanced technology for learning primary geography is proposed, which
synthesizes several latest information technologies including virtual
reality(VR), 3D geographical information system(GIS), 3D visualization and
multimodal human-computer-interaction (HCI). The main functions of the proposed
system are introduced, i.e. Buffer analysis, Overlay analysis, Space convex
hull calculation, Space convex decomposition, 3D topology analysis and 3D space
intersection detection. The multimodal technologies are employed in the system
to enhance the immersive perception of the users.

25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th