Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stage I non-small cell lung cancer stratification by using a model-based
  clustering algorithm with covariates   Lung cancer is currently the leading cause of cancer deaths. Among various
subtypes, the number of patients diagnosed with stage I non-small cell lung
cancer (NSCLC), particularly adenocarcinoma, has been increasing. It is
estimated that 30 - 40\% of stage I patients will relapse, and 10 - 30\% will
die due to recurrence, clearly suggesting the presence of a subgroup that could
be benefited by additional therapy. We hypothesize that current attempts to
identify stage I NSCLC subgroup failed due to covariate effects, such as the
age at diagnosis and differentiation, which may be masking the results. In this
context, to stratify stage I NSCLC, we propose CEM-Co, a model-based clustering
algorithm that removes/minimizes the effects of undesirable covariates during
the clustering process. We applied CEM-Co on a gene expression data set
composed of 129 subjects diagnosed with stage I NSCLC and successfully
identified a subgroup with a significantly different phenotype (poor
prognosis), while standard clustering algorithms failed.

17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
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The categories of this paper are: eess
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th