Homepage
Professor Emeritus
Huck Institute of Life Sciences
CV
New Researcher’s Guide (IMS)
Points of Significance Articles
Summary of research interests
Dr. Altman’s interest in statistics stems from her broad interests in the application of the mathematical sciences to problems in other 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 nonparametricsmoothing has focused on problems in which the errors are correlated,and parametric covariate effects are of interest. Current areas of interest include inference for self-modeling regression when curves are the response in a comparative experiment and fitting and inference for 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 matrix decompositions.
Altman is also a member of the Huck Institutes of Life Sciences specializing in Bioinformatics and Genomics.
Dr. Altman has directed 14 MS theses and directed or co-directed 6 Ph.D. theses, as of 2023.
Dr. Altman retired in 2019, but continues to write articles and collaborate with scientists in other fields.
Nature Methods Articles – Points of Significance
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.
Complete list of Points of Significance Articles
There is a companion set of articles on creating good graphics Points of View. Altman is not a co-author but highly recommends these articles.
Teaching
Stat 414 Introduction to Probability
Stat 440 Statistical Computing
Stat 503 Experimental Design 2
Stat 511 Applied Linear Regression
Stat 512 Design of Experiments
Stat 540 Computationally Intensive Statistical Inference
Stat 555 Statistical Analysis of High Throughput Biology Experiments
Stat 580 Statistical Computing
Stat 597C Computing Environments for Statistics
Stat/Bio/CSE 598D Bioinformatics II – Microarrays
Stat/IBIOS 598A Current Research in Statistical Genomics
Talks
Bioinformatics Talks
- Irreproducible Research and Data Bloat
- Differential Expression in Sequence Data
- Reproducible Research
- Gene Expression for Quantitative Scientists
- Designing High Throughput Studies (general principles)
- The Biology, Technology and Statistical Modeling of High-throughput Genomics Data
- Statistical Basics for Microarray Studies (also applies to RNA-seq after intro)
- Some Contributions of Statistics to the Genomics Revolution
- Do Gene Locations Cluster?
Statistics Talks
- Why Study Statistics?
- Reproducible Research
- Generalizing Principal Components Analysis
- Interpreting and Extending PCA (in meteorology)
- Statistics: Taskmistress or Temptress?
- Estimating Pi0 and FDR for Discrete Tests
- Self-Modeling Regression for Longitudinal Data
- Nonparametric Regression for Longitudinal Data
- Confidence Sets for Clusters
Publications
Representative publications: Statistics
Altman, N. S. (2016) Comment on The ASA’s Statement on p-Values: Context, Process, and Purpose.(R. Wasserstein and N. Lazar) The American Statistician, 70(2) doi:/10.1080/00031305.2016.1154108
Dialsingh, I., Austin, S. and Altman, N.S. (2015) Estimating the Percentage of True Null Hypotheses when the
Statistics are Discrete. Bioinformatics, 31 (14) 2303–2309,doi:10.1093/bioinformatics/btv104 oxfordJournals
Stefanie R. Austin, Isaac Dialsingh, Naomi Altman. (2014) Multiple Hypothesis Testing: A review. J. Indian
Soc. Of Agricultural Stat. 68:303-314. JISAS
Luo, W. and Altman, N. S. (2013) A Characterization of Conjugate Priors in Linear Exponential Families with application to Dimension Reduction. Statistics and Probability Letters, 83, 650-654.sciencedirect
Li, B., Kim, M.K. and Altman, N.S. (2010) On dimension folding of matrix or array valued statistical objects. Annals of
Statistics, 38, 1094-1121; arxiv.org
Altman, N.S. and J. Villarreal. (2004). Self-modeling regression with random effects using penalized splines, Canadian Journal of Statistics, 32, 251-268. https://doi.org/10.2307/3315928, jstor WileyOnline
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. Léger. (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. J. of the Amer. Stat. Assoc. 90, 508-515. https://doi.org/10.2307/2291061 jstor
Léger, C. and Altman, N.S., (1993) Assessing Influence in Variable Selection Problems. J. of the Amer. Stat. Assoc., 88, 547-556. https://doi.org/10.2307/2290335
Altman, N.S, (1990) Kernel Smoothing of Data with Correlated Errors. J. of the Amer. Stat. Assoc., 85, 749-758. jstor https://doi.org/10.2307/2290011
Representative publications: Bioinformatics
Jessica Waite, Elizabeth Kelly, Huiting Zhang, Heidi Hargarten, Sumyya Waliullah, Naomi Altman, Claude dePamphilis, Loren Honaas, Lee Kalcsits (2023) Transcriptomic approach to uncover dynamic events in the development of mid-season sunburn in apple fruit. G3: Genes, Genomes, Genetics G3
Voelkl B, Altman NS, Forsman A, Forstmeier W, Gurevitch J, Jaric I , Karp NA, Kas MJ, Schielzeth H, Van de Casteele T, Würbel H. (2020) Reproducibility of animal research in light of biological variation. Nat Rev Neurosci, 21, 384–393. https://doi.org/10.1038/s41583-020-0313-3
Loren A. Honaas, Sam Jones, Nina Farell, William Kamerow, Huiting Zhang, Kathryn Vescio, Naomi S. Altman, John I. Yoder and Claude W. dePamphilis. (2019) Risk versus reward: host dependent parasite mortality rates and phenotypes in the facultative generalist Triphysaria versicolor. BMC Plant Biology. 19, 334. https://bmcplantbiol.biomedcentral.com/articles/10.1186/s12870-019-1856-1
Qingyu Wang, Cooduvalli S. Shashikant, Naomi S. Altman, Santhosh Girirajan. (2017) . Novel metrics to measure coverage in whole exome sequencing datasets reveal local and global non-uniformity. Scientific Reports, 7(1), 885. SciRep
Honaas L.A., Altman N.S., Krzywinski M. (2016) Study Design for Sequencing Studies. In: Mathé E., Davis S. (eds) Statistical Genomics. Methods in Molecular Biology, vol 1418. Humana Press, New York, NY https://link.springer.com/protocol/10.1007/978-1-4939-3578-9_3
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.
342, 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) Comparative transcriptomics 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
Altman, N.S., Wang, Q., Karwa, V. and Slavkovic, A. (2010) Resolving Isoform Expression using Digital Gene Expression Data. Journal of the Indian Society of Agricultural Statistics, special issue on Statistical Genomics, 4, 19-31. pdf
Altman, N.S. (2009) Batches and Blocks, Sample Pools and Subsamples in the Design and Analysis of Gene Expression Studies. in Batch Effects and Noise in Microarray Experiments: Sources and Solutions. A. Scherer (editor). John Wiley & Sons, Chichester. https://onlinelibrary.wiley.com/doi/10.1002/9780470685983.ch4
Han, X., X. Wu, W.-Y. Chung, T., Li, A. Nekrutenko, N. Altman, G. Chen, and H. Ma (2009) Transcriptome of embryonic and neonatal mouse cortex by high-throughput RNA sequencing. Proceedings
of the National Academy of Sciences, 106 (31), pp. 12741-6. PNAS
Wall, P.K., J. H. Leebens-Mack, A. Barakat, A. Chanderbali, L. Landherr, N. Altman, J.E. Carlson, H. Ma, W. Miller, S. Schuster, D.E. Soltis, P.S. Soltis, and C.W. dePamphilis. (2008) Comparison of next generation sequencing technologies for de novo transcriptome characterization. BMC Genomics. BMC Genomics
Han, B., Altman, N.S., Mong, J.A., Klein, L.C., Pfaff, D.W. and Vandenbergh, D. (2008) Comparing Quantitative Trait Loci and Gene Expression Data Associated with a Complex Trait, Advances in Bioinformatics. Hindawi Press
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. PSU
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.Springer
Last updated: 22 June, 2023