Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relating Complexity to Practical Performance in Parsing with
  Wide-Coverage Unification Grammars   The paper demonstrates that exponential complexities with respect to grammar
size and input length have little impact on the performance of three
unification-based parsing algorithms, using a wide-coverage grammar. The
results imply that the study and optimisation of unification-based parsing must
rely on empirical data until complexity theory can more accurately predict the
practical behaviour of such parsers.

4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci