Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Estimation in a class of semiparametric transformation models   We consider estimation in a class of semiparametric transformation models for
right--censored data. These models gained much attention in survival analysis;
however, most authors consider only regression models derived from frailty
distributions whose hazards are decreasing. This paper considers estimation in
a more flexible class of models and proposes conditional rank M-estimators for
estimation of the Euclidean component of the model.

27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
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
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph