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Joshua Mayer

dblp:217/5719 · DBLP profile ↗
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1ranked-venue papers
1as first author
0since 2021 · last 2018
—ORCID · none

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

Applied, interdisciplinary, general and emerging computing · 1 · 1 first-author

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%

Topics — the 4 heaviest of 4, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Bioinformatics and computational biology › drug discovery › drug response prediction
drug sensitivity prediction
0.312018
Sequential feature selection and inference using multi-variate random forests · Bioinform. 2018
Bioinformatics and computational biology
feature selection
0.312018
Sequential feature selection and inference using multi-variate random forests · Bioinform. 2018
Bioinformatics and computational biology › genomics
pharmacogenomics
0.312018
Sequential feature selection and inference using multi-variate random forests · Bioinform. 2018
Bioinformatics and computational biology
statistical genetics
0.312018
Sequential feature selection and inference using multi-variate random forests · Bioinform. 2018

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

random forest · 0.3hypothesis testing · 0.3conditional inference tree · 0.3
YearPublicationVenuePosition
2018 Sequential feature selection and inference using multi-variate random forests
abstract
Motivation: Random forest (RF) has become a widely popular prediction generating mechanism. Its strength lies in its flexibility, interpretability and ability to handle large number of features, typically larger than the sample size. However, this methodology is of limited use if one wishes to identify statistically significant features. Several ranking schemes are available that provide information on the relative importance of the features, but there is a paucity of general inferential mechanism, particularly in a multi-variate set up. We use the conditional inference tree framework to generate a RF where features are deleted sequentially based on explicit hypothesis testing. The resulting sequential algorithm offers an inferentially justifiable, but model-free, variable selection procedure. Significant features are then used to generate predictive RF. An added advantage of our methodology is that both variable selection and prediction are based on conditional inference framework and hence are coherent. Results: We illustrate the performance of our Sequential Multi-Response Feature Selection approach through simulation studies and finally apply this methodology on Genomics of Drug Sensitivity for Cancer dataset to identify genetic characteristics that significantly impact drug sensitivities. Significant set of predictors obtained from our method are further validated from biological perspective. Availability and implementation: https://github.com/jomayer/SMuRF. Contact: [email protected]. Supplementary information: Supplementary data are available at Bioinformatics online.
Joshua Mayer, Raziur Rahman, Souparno Ghosh, Ranadip Pal
Bioinform.1