Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: HCI and Educational Metrics as Tools for VLE Evaluation   The general set of HCI and Educational principles are considered and a
classification system constructed. A frequency analysis of principles is used
to obtain the most significant set. Metrics are devised to provide objective
measures of these principles and a consistent testing regime devised. These
principles are used to analyse Blackboard and Moodle.

16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
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The categories of this paper are: eess
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
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The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org