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H. L. Størvold

dblp:86/520 · DBLP profile ↗
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1ranked-venue papers
0as first author
0since 2021 · last 2007
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Applied, interdisciplinary, general and emerging computing · 1

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Interdisciplinary, comprehensive, and emerging computing
1 paper
Bioinformatics and computational biology · 100%
Databases, data mining, and information retrieval
1 paper
Machine learning and data management · 100%

Topics — the 3 heaviest of 3, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Bioinformatics and computational biology › survival analysis › survival prediction
gene expression-based survival prediction
0.112007
Predicting survival from microarray data - a comparative study · Bioinform. 2007
Bioinformatics and computational biology › survival analysis
survival prediction
0.112007
Predicting survival from microarray data - a comparative study · Bioinform. 2007
Machine learning and data management › statistical learning
high-dimensional regression
0.012007
Predicting survival from microarray data - a comparative study · Bioinform. 2007

Methods — techniques the papers use, named apart from their topics

ridge regression · 0.1principal components regression · 0.1partial least squares · 0.1cox proportional hazards · 0.1LASSO · 0.1
YearPublicationVenuePosition
2007 Predicting survival from microarray data - a comparative study
abstract
MOTIVATION: Survival prediction from gene expression data and other high-dimensional genomic data has been subject to much research during the last years. These kinds of data are associated with the methodological problem of having many more gene expression values than individuals. In addition, the responses are censored survival times. Most of the proposed methods handle this by using Cox's proportional hazards model and obtain parameter estimates by some dimension reduction or parameter shrinkage estimation technique. Using three well-known microarray gene expression data sets, we compare the prediction performance of seven such methods: univariate selection, forward stepwise selection, principal components regression (PCR), supervised principal components regression, partial least squares regression (PLS), ridge regression and the lasso. RESULTS: Statistical learning from subsets should be repeated several times in order to get a fair comparison between methods. Methods using coefficient shrinkage or linear combinations of the gene expression values have much better performance than the simple variable selection methods. For our data sets, ridge regression has the overall best performance. AVAILABILITY: Matlab and R code for the prediction methods are available at http://www.med.uio.no/imb/stat/bmms/software/microsurv/.
Hege M. Bøvelstad, Ståle Nygård, H. L. Størvold, Magne Aldrin, Ørnulf Borgan, Arnoldo Frigessi, Ole Christian Lingjærde
Bioinform.3