Dr. Altman's interest in statistics stems from her broad
in the application of the mathematical sciences to problems in
disciplines – in particular, medical
and biological sciences, earth and environmental sciences, and
social sciences. Her statistical interests
include bioinformatics, high dimensional data, nonparametric
smoothing, model selection and
analysis of functional and longitudinal data. Dr. Altman's current
research is in bioinformatics and dimension reduction.
Dr. Altman's bioinformatics work includes the design and analysis of microarray and RNA-seq studies, functional genomics and gene clustering (by position on the chromosome, by sequence structure, and by function). Much of this work is currently in collaboration with biologists such as Claude dePamphilis (plants) and Iliana Baums (coral). She also works in more applied areas such as social insects with Christina Grozinger and plant pathology with Tim McNellis. In medical bioinformatics, Dr. Altman has been working on single cell RNA-seq for circulating tumor cells with Gary Clawson, the analysis of microbiome data and on the analysis of protein microarrays for antigen analysis.
Altman's work in functional data analysis and nonparametric
smoothing has focused on problems in which the errors are
and parametric covariate effects are of interest. Current areas of
interest include inference for self-modeling regression when
the response in a comparative experiment and fitting and inference
longitudinal and spatial data with a smooth component.
Altman's work in high dimensional data has taken two
directions. She is working on multiple testing and other
high dimensional estimation and testing problems which occur in
parallel estimation and testing situations such as the analysis of
`omics' data. She also works on dimension reduction focusing
on extensions of supervised and unsupervised methods based on
Altman is a member of the Clinical
and Translational Sciences Institute and is member of the
core faculty in the Biostatistics,
Epidemiology and Research Design group, which provides
consulting services for biomedical research at Penn State.
Altman is also a member of the Huck Institutes of Life Sciences specializing in Bioinformatics and Genomics. She is member of the core faculty on our new Computation, Bioinformatics, and Statistics (CBIOS) Training Program
Dr. Altman has directed 14 MS theses and directed or co-directed 5 Ph.D. theses, as of 2015. She serves on about 10 graduate dissertation committees annually.
Nature Methods Articles
Altman is co-author, with the incredible Martin Krzywinski and occasionally others, of the Points of Significance Articles. in Nature Methods . These articles cover a number of topics in statistics which should be useful to biologists and bioinformaticians. it is part of the Nature Publishing Reproducibility Initiative.
There is a companion set of articles on creating good graphics Points of View. Altman not a co-author but highly recommends these articles.
Li, B., Kim,
and Altman, N.S. (2010)
dimension folding of matrix or array valued statistical
objects. Annals of
Altman, N.S. and J. Villarreal. (2004). Self-modeling regression with random effects using penalized splines, Canadian Journal of Statistics, 32.jstor
Altman, N.S. (2000). Krige, smooth, both or neither? (with discussion). Australian and New Zealand Journal of Statistics 42: 441-461. Wiley
Altman, N.S. and C. Leger. (1997). On the optimality of prediction-based selection criteria and the convergence rates of estimators. Journal Royal Statistical Society, Series B 59: 205-216.jstor
Altman, N.S. and G. Casella.(1995) Nonparametric empirical Bayes growth curve analysis. JASA 90: 508-515.jstor
Léger, C. and Altman, N.S., (1993) Assessing Influence in Variable Selection Problems. Journal of the American Statistical Association, 88, 547-556.jstor
(1990) Kernel Smoothing of Data
with Correlated Errors.
of the American Statistical
Representative publications: Bioinformatics
Honaas, L., Altman, N.S. and Kryzwinski, M. (2015) Study Design for Sequencing Studies. in Methods in Statistical Genomics. Mathe, E. and Davis, S. (editors). Springer. (in press)
Zhenzhen Yang, Eric K. Wafula, Loren A. Honaas, Huiting Zhang, Malay Das, Monica Fernandez-Aparicio, Kan Huang, Pradeepa C.G. Bandaranayake, Biao Wu, Joshua P. Der, Christopher R. Clarke, Paula E. Ralph, Lena Landherr, Naomi S. Altman, Michael P. Timko, John I. Yoder, James H. Westwood, and Claude W. dePamphilis. (2014) Comparative transcriptome analyses reveal core parasitism genes and suggest gene duplication and repurposing as sources of structural novelty. Molecular Biology and Evolution. DOI: 10.1093/molbev/msu343 oxfordjournals
Philip J Jensen, Gennaro Fazio, Naomi Altman, Craig Praul and Timothy McNellis.(2014) Mapping in an apple (Malus x domestica) F1 segregating population based on physical clustering of differentially expressed genes. BMC Genomics 15:261 http://www.biomedcentral.com/1471-2164/15/261
Amborella Genome Project(2013) "The Amborella Genome and the Evolution of Flowering Plants” Science. 20: 1241089 [DOI:10.1126/science.1241089] science
Smyth, G.K. and Altman, N.S. (2013) Separate-Channel Analysis of Two-Channel Microarrays: recovering inter-spot information. BMC Bioinformatics 14:165 doi:10.1186/1471-2105-14-165 BMC
Zahn, LM, Ma,X, Altman, NS, Zhang, Q, Wall, PK, Tian, D., Gibas, CJ, Gharaibeh,
R, Leebens-Mack, JH, dePamphilis, CW and Ma, H. (2010)
among floral organs of the basal
eudicot Eschscholzia californica as reference for floral evolutionary developmental studies. Genome Biology, 11:R101. http://genomebiology.com/2010/11/10/R101
P.K., J. H. Leebens-Mack, A. Barakat,
Chanderbali, L. Landherr, N.
E. Carlson, H. Ma, W. Miller, S.
Schuster, D.E. Soltis, P.S. Soltis, and C.W. dePamphilis. (2008)
generation sequencing technologies for de
novo transcriptome characterization. BMC Genomics. BMC
Han, B., Altman, N.S., Mong,
L.C., Pfaff, D.W. and
Vandenbergh, D. (2008) Comparing Quantitative Trait Loci and
Associated with a Complex Trait, Advances in
P. Kerr Wall, Jim Leebens-Mack, Kai Müller, Dawn Field, Naomi S. Altman, Claude W. dePamphilis. (2007) PlantTribes: A gene and gene family resource for comparative genomics in plants. Nucleic Acid Research, 36, 970-976. NAR
Soltis D.E., H. Ma, M.W. Frohlich, P.S. Soltis, V.A. Albert, D.G. Oppenheimer, N.S. Altman, C.W. dePamphilis and J.H. Leebens-Mack. (2007) The floral genome: an evolutionary history of gene duplication and shifting patterns of gene expression. Trends in Plant Science 12(8):358-367.ScienceDirect
Altman, N.S., Hua, J. (2006) Extending the loop design for 2-channel microarray experiments Genetical Research, Vol 88, No. 3, p. 153-163.Cambridge
Altman, N.S. (2005). Replication, variation and normalization in microarray experiments Applied Bioinformatics, 4, 33-44.pdf
Last updated: 8 Aug 2015