Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lighthouse: A User-Centered Web Service for Linear Algebra Software   Various fields of science and engineering rely on linear algebra for large
scale data analysis, modeling and simulation, machine learning, and other
applied problems. Linear algebra computations often dominate the execution time
of such applications. Meanwhile, experts in these domains typically lack the
training or time required to develop efficient, high-performance
implementations of linear algebra algorithms. In the Lighthouse project, we
enable developers with varied backgrounds to readily discover and effectively
apply the best available numerical software for their problems. We have
developed a search-based expert system that combines expert knowledge, machine
learningbased classification of existing numerical software collections, and
automated code generation and optimization. Lighthouse provides a novel
software engineering environment aimed at maximizing both developer
productivity and application performance for dense and sparse linear algebra
computations.

11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
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The categories of this paper are: eess
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an