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{"url": "https://hombao.ics.uci.edu/?s=publications", "content": "<!DOCTYPE html>\r\n<html>\r\n<body>\r\n<head>\r\n<meta http-equiv=\"content-type\" content=\"text/html; charset=utf-8\" />\r\n<meta name=\"description\" content=\"We develop novel statistical methods and models for analyzing complex spatio-temporal data.\" />\r\n<meta name=\"keywords\" content=\"spatiotemporal, biostatistics, research group\" />\r\n<meta name=\"author\" content=\"Hernando Ombao\" />\r\n<title>Space-Time Modeling</title>\r\n<link href=\"main.css\" rel=\"stylesheet\" type=\"text/css\" />\r\n\r\n\r\n<div id=\"header\" style=\"width:100%;\">\r\n<img src=\"logo.gif\">\r\n</div>\r\n\r\n<div id=\"footer\" style=\"width:100%;\">\r\n<a href=\"mailto:hombao@uci.edu\"><img src=\"contact.gif\" style=\"border:0\" /></a>\r\n</div>\r\n\r\n<div id=\"menu\">\r\n<HEAD>\r\n\r\n <LINK HREF=\"menu.css\" REL=\"stylesheet\" TYPE=\"text/css\" />\r\n\r\n</HEAD>\r\n\r\n\r\n\r\n<UL ID=\"nav\">\r\n\r\n\t<LI><A HREF=\"?s=people\">People</A></LI>\r\n\r\n\t<LI><A HREF=\"?s=research\">Research</A>\r\n\t\t<UL>\r\n\t\t\t<LI><A HREF=\"?s=overview\">Overview</A></LI>\r\n\t\t\t<LI><A HREF=\"?s=projects\">Projects</A></LI>\r\n\t\t\t<LI><A HREF=\"?s=publications\">Publications</A></LI>\r\n\t\t\t<LI><A HREF=\"?s=grants\">Grants</A></LI>\r\n\t\t</UL>\r\n\t</LI>\r\n\r\n\t<LI><a href=\"?s=education\">Education</A>\r\n\t\t<UL>\r\n\t\t\t<LI><A HREF=\"?s=courses\">Courses</A></LI>\r\n\t\t\t<LI><A HREF=\"?s=journal\">Journal Club</A></LI>\r\n\t\t\t<LI><A HREF=\"?s=opportunities\">Opportunities for Students</A></LI>\r\n\t\t</ul>\r\n\t</li>\r\n\r\n\t<LI><a href=\"?s=news_and_events\">News & Events</A>\r\n\t\t<UL>\r\n\t\t\t<LI><A HREF=\"?s=news\">News</A></LI>\r\n\t\t\t<LI><A HREF=\"?s=recent\">Recent Presentations</A></LI>\r\n\t\t\t<LI><A HREF=\"?s=upcoming\">Upcoming Presentations</A></LI>\r\n\t\t</UL>\r\n\t</LI>\r\n\r\n</UL>\r\n\r\n\r\n\r\n</div>\r\n\r\n<div id=\"body\" style=\"margin-left:20px; margin-right:20px;\">\r\n\r\n\r\n\r\n\n<h1>Publications</h1>\n\n<h2>To Appear</h2>\n<p><li>Fiecas M, Ombao H, Van Lunen D, Baumgartner R, Coimbra A, Feng D. (2012). <a href=\"http://www.ics.uci.edu/~hombao/Downloads/Test-Retest-Fiecas-Ombao-NeuroImage-2012.pdf\">Quantifying Temporal Correlations: A Test-Retest Evaluation of Functional Connectivity in Resting State fMRI</a>. <em>NeuroImage</em>.</p>\n\n<p><li>Gorrostieta C, Ombao H, Prado R, Patel S and Eskandar E. (2012). <a href=\"http://www.ics.uci.edu/~hombao/Downloads/Monkey-LFP-Gorrostieta-Ombao-JTSA-2012.pdf\">Exploring Dependence Between Brain Signals in a Monkey During Learning</a>. <em>Journal of Time Series Analysis</em>.</p>\n\n<p><li>Stoffer D and Ombao H. (2012). Editorial: Special Issue on Time Series Analysis in the Biological Sciences. <em>Journal of Time Series Analysis</em>.</p>\n\n<p><li>Ombao H. (2012). <a href=\"http://www.ics.uci.edu/~hombao/Downloads/BookChapter-OMBAO-SLEX-2012.PDF\">Time Series Analysis of multivariate non-stationary time series using the localised Fourier Library</a>. <em>Handbook of Statistics: Time Series, Elsevier</em>.</p>\n\n<p><li>Markova A, Risica P, Shaikh W, Kirtania U, Ombao H and Weinstock M. (2011). Gender in examination and counseling for melanoma in primary care. <em>Archives of Internal Medicine</em>.</p>\n\n<p><li>Zhu T, Cohen R, Harezlak J, Ombao H, Navia B and Schiffito G. (2012). Patterns of CNS injury in HIV infection after partial immune reconstitution: A DTI tract-based spatial statistics study. <em>Journal of Neurovirology</em>.</p>\n\n<p><li>Bender J, Koestler D, Ombao H, McCourt M, Alskinis B, Rubin L and Padbury J. (2012). Neonatal Intensive Care Unit: Predictive Models for Length of Stay. <em>The Journal of Perinatology.</em></p>\n\n\n<h2>2012</h2>\n\n<p><li>Gorrostieta C, Ombao H, Bedard P and Sanes J.N. (2012). <a href=\"http://www.ics.uci.edu/~hombao/Downloads/ME-VAR-NEUROIMAGE-FINAL.PDF\">Investigating Stimulus-Induced Changes in Connectivity Using Mixed Effects Vector Autoregressive Models</a>. <em>NeuroImage</em>, 59, 3347-3355.</p>\n\n<p><li>Ombao H. (2012). <a href=\"http://www.ics.uci.edu/~hombao/Downloads/Ombao-DiscThreshold-JKSS-2012.pdf\">Discussion: Time Threshold Maps: Using information from wavelet reconstructions with all threshold values simultaneously</a>. <em>Journal of the Korean Statistical Society</em>, 41, 171-172.</p>\n\n<p><li>Motta, G. and Ombao, H. (2012). <a href=\"http://www.ics.uci.edu/~hombao/Downloads/EvolFactorAnalysis-Motta-Ombao-Biometrics-2012.pdf\">Evolutionary Factor Analysis of Replicated Time Series</a>. <em>Biometrics</em>.</p>\n\n<p><li>Kang H, Ombao H, Linkletter C, Long N and Badre D. (2012). <a href=\"http://www.ics.uci.edu/~hombao/Downloads/SpatioSpectral_JASA2012.pdf\">Spatio-Spectral Mixed Effects Model for Functional Magnetic Resonance Imaging Data</a>. <em>Journal of the American Statistical Association</em>.</p>\n<p><em>H. KANG is the 2011 Winner of the John Van Ryzin Award</em>.</p>\n\n<h2>2011</h2>\n\n<p><li>Fiecas, M. and Ombao, H. (2011).The Generalized Shrinkage Estimator for the Analysis of Functional Connectivity of Brain Signals. <em>Annals of Applied Statistics</em>, 5, 1102-1125.</p>\n<p><em>M Fiecas, receipient of the 2010 Student Paper Award at New England Statistics Symposium at Cambridge, MA.</em></p>\n\n<p><li>Bunea F, She Y Ombao H, Gongvatana W, Devlin K and Cohen R. (2011). Penalized Least Squares Regression Methods and Applications to Neuroimaging. <em>NeuroImage</em>, (55), 1519-1527.</p>\n\n<p><li>Verducci J and Ombao H. (2011). Introduction to the special issue on best papers from the SLDM competition. <em>Statistical Analysis and Data Mining</em>, 4: 565-566.</p>\n\n<p><li>Politi MC, Clark MA, Ombao H, Legare F. (2011).The Impact of Physicians Reactions to Uncertainty on Patients Decision Satisfaction. <em>Journal of Evaluation in Clinical Practice</em>, 17, 575-578.</p>\n\n<p><li>Ito H, Matsuo K, Tanaka H, Koestler DC, Ombao H, Fulton J, Shibata A, Fujita M,Sugiyama and Mor V. (2011). Non-filter and filter cigarette consumption and the incidence of lung cancer type in Japan and</p>\n<p>the United States: Analysis of 30-year data from population-based cancer registries. <em>International Journal of Cancer</em>, 128, 175-1998.</p>\n\n<p><li>Politi MC, Clark MA, Ombao H, Dizon D and Elwyn G. (2011). Communicating uncertainty can lead to less decision satisfaction: A necessary cost of involving patients in shared decision making. <em>Health Expectations</em>, 14, 84-91.</p>\n\n<p><li>Cohen R, de la Monte S, Gongvatana A, Ombao H, Gonzalez B, Devlin K, Navia B and Tashima K. (2011). Plasma cytokine concentrations associated with HIV/hepatitis C coinfection are related to attention, executive and psychomotor functioning. <em>Journal of Neuroimmunology</em>, J Neuroimmunology, 233, 204-210..</p>\n\n<p><li>Gongvatana A, Cohen R, Correia S, Devlin K, Miles J, Clark U, Westbrook M, Hana G, Kang H, Ombao H, Navia B, Laidlaw D and Tashima K. (2011). Clinical Contributors to Cerebral White Matter Integrity in HIV-infected Individuals. <em>Journal of Neurovirology</em>, 7, 477-486.</p>\n\n<h2>2010</h2>\n\n<p><li>Gao, B., Ombao, H. and Ho, R. (2010). Cluster Analyis for Non-Stationary Time Series. In Statistical Methods for Modeling Human Dynamics: An Inter-Disciplinary Dialogue (pp. 85-122), Taylor and Francis.</p>\n\n<p><li>Ombao, H. and Prado, R. (2010). A Closer Look at the Two Approaches for Clustering and Classification of Non-Stationary Time Series. In Statistical Methods for Modeling Human Dynamics: An Inter-Disciplinary Dialogue (pp ), Taylor and Francis.</p>\n\n<p><li>Bohm, H., Ombao, H., von Sachs, R. and Sanes, J.N. (2010). Discrimination and Classification of Multivariate Non-Stationary Signals: The SLEX-Shrinkage Method. <em>Journal of Statistical Planning and Inference</em>, (140), 3754-3763.</p>\n\n<p><li>Freyermuth, J-M., Ombao, H. and von Sachs, R. (2010). Spectral Estimation from Replicated Time Series: An Approach Using the Tree-Structured Wavelets Mixed Effects Model. </em>Journal of the American Statistical Association</em>, (105), 634-646.</p>\n\n<p><li>Fiecas, M., Ombao, H., Linkletter, C., Thompson, W. and Sanes, J.N. (2010). Functional Connectivity: Shrinkage Estimation and Randomization Test. <em>NeuroImage</em>, (40), 3005-3014.</p>\n\n<h2>2009</h2>\n\n<p><li>Shitan, M., Ombao, H. and Ling, K-W. (2009). Spatial Modeling of Peak Frequencies of Brain Signals. <em>Malaysian Journal of the Mathematical Sciences</em>, 3(1), 13-26.</p>\n\n<p><li>Tadjuidje,J, Ombao, H. and Davis, R. (2009). A Class of Switching Regimes Autoregressive Driven Processes with Exogenous Components. <em>Journal of Time Series Analysis</em>, 30, 505-533.</p>\n\n<p><li>Fryzlewicz, P and Ombao, H. (2009). Consistent Classification of Non-Stationary Signals Using Stochastic Wavelet Representations.<em> Journal of the American Statistical Association</em>, 104, 299-312.</p>\n\n<h2>2008</h2>\n\n<p><li>Ombao, H and Van Bellegem (2008). Coherence Analysis: A Linear Filtering Point Of View. <em>IEEE Transactions on Signal Processing</em>, 56(6), 2259-2266.</p>\n\n<p><li>Ho, M, Ombao, H, Edgar, C and Miller, G. (2008). Time-Frequency Discriminant Analysis of MEG Signals. <em> NeuroImage</em>, 40(1), 174-186.</p>\n\n<p><li>Ombao, H, Shao, X, Rykhlevskaia, E, Fabiani, M and Gratton, G. (2008). Spatio-Spectral Analysis of Brain Signals. <em>Statistica Sinica</em>, 18, 1465-1482.</p>\n\n<h2>Pre-2008 Statistical</h2>\n\n<p><li>Stoffer, D. and Ombao, H. (2000). Localized Spectral Envelope. Resenhas, 4, 363-381.</p>\n\n<p><li>Ombao, H., Raz, J., von Sachs, R. and Malow, B. (2001). Automatic Statistical Analysis of Bivariate Non-Stationary Time Series. Journal of the American Statistical Association, 96, 543-560.</p>\n\n<p><li>Ombao, H., Raz, J., Strawderman, R. and von Sachs, R. (2001). A simple GCV method of span selection for periodogram smoothing. Biometrika, 88, 1186-1192.</p>\n\n<p><li>Ombao, H., Raz, J., von Sachs, R. and Guo, W. (2002). The SLEX Model of Non-Stationary Random Process. Annals of the Institute of Statistical Mathematics, 54, 171-200.</p>\n\n<p><li>Stoffer, D., Ombao, H. and Tyler, D. (2002). Evolutionary Spectral Envelope: An Approach Using the Tree-Based Adaptive Segmentation. Annals of the Institute of Statistical Mathematics, 54, 201-223.</p>\n\n<p><li>Guo, W., Dai, M., Ombao, H. and von Sachs (2003). Smoothing Spline ANOVA For Time-Dependent Spectral Analysis. Journal of the American Statistical Association, 98, 643-652.</p>\n\n<p><li>Pasia, J., Hermosilla, A. and Ombao, H. (2004). Genetic Algorithms: Useful Statistical Tools. Journal of Statistical Computation and Simulation, 75, 237-251.</p>\n\n<p><li>Ombao, H., Heo, J., Stoffer, D. (2004). Statistical Analysis of Seismic Signals: An Almost Real Time Approach, Time Series Analysis and Applications to Geophysical Systems (eds. D. Brillinger E. Robinson and F. Schoenberg), New York: Springer Verlag, IMA Series, 139, 53-72.</p>\n\n<p><li>Huang, H., Ombao, H. and Stoffer D. (2004). Classification and Discrimination of Non-Stationary Time Series Using the SLEX Model. Journal of the American Statistical Association, 99, 763-774.</p>\n\n<p><li>Ho, M., Ombao, H. and Shumway, R. (2005). Modelling Brain Dynamics: A State-Space Approach, Statistica Sinica, 15, 407-425.</p>\n\n<p><li>Gamalo M, Ombao H and Jennings R. (2005). Comparing Extent of Activation: A Robust Permutation Approach. NeuroImage, 24(3): 715-722.</p>\n\n<p><li>Ombao, H., von Sachs, R. and Guo, W. (2005). SLEX Analysis of Multivariate Non-Stationary Time Series. Journal of the American Statistical Association, 100, 519-531.</p>\n\n<p><li>Bunea, F., Ombao, H. and Auguste, A. (2006). Minimax Adaptive Spectral Estimation from an Ensemble of Signals. IEEE Transactions on Signal Processing, 54, 2865-2873.</p>\n\n<p><li>Ho, M., Shumway, R. and Ombao, H. (2006). State-Space Models for Longitudinal Data With Applications in the Biological and Social Sciences. In Walls and Shafer (eds). Models for Intensive Longitudinal Data. New York, NY: Oxford Univ.Press.</p>\n\n<p><li>Shinkareva, S., Ombao, H. and Sutton B. (2006). A Data-Driven Approach to Classification and Discrimination of fMRI Data. <em>NeuroImage</em>, 33, 63-71.</p>\n\n<p><li>Ombao, H. and Ho, M. (2006). Time-dependent frequency domain principal components analysis of multi-channel non-stationary signals. Computational Statistics and Data Analysis, 50(9), 2339-2360.</p>\n\n<p><li>Choi, H., Ombao, H. and Ray, B. (2007). Sequential Change-point Detection Method in Time Series, Technometrics, 50(1), 40-52.</p>\n\n<h2>Pre-2008 Collaborative Papers</h2>\n\n<p><li>Buysse D, Hall M, Begley A, Cherry C, Houck P, Land S, Ombao H, Kupfer D and Frank E. (2001). REM Sleep and Treatment Response in Depression: New Findings Using Power Spectral Analysis. Psychiatry Research, 103, 51-67.</p>\n\n<p><li>Fagiolini A, Frank E, Houck P, Mallinger A, Swartz H, Buysse D, Ombao H and Kupfer, D. (2002). Prevalence of Obesity and Weight Change During Treatment in patients with Bipolar I Disorder, Journal of Clinical Psychiatry, 63(6), 528-534.</p>\n\n<p><li>Cranstoun S, Ombao H, von Sachs R, Guo W and Litt B. (2002). Improved Time-FrequencyAnalysis of EEG Signals Using the Auto-SLEX Method, IEEE Trans in Biomedical Engineering, 49, 988 996.</p>\n\n<p><li>Nofzinger E, Buysse D, Miewald J, Meltzer C, Price J, Sembrat R, Ombao H, Reynolds C, Monk T Hall M, Kupfer D and Moore R. (2002). Human Regional Cerebral Glucose Metabolism During NREM Sleep in Relation to Waking. Brain, 125,1101-1115.</p>\n\n<p><li>Moul D, Ombao H, Monk T, Chen Q and Buysse D. (2002). Masking effects of posture and sleep onset on core body temperature: a circadian rhythm of bedtime temperature drops. Journal of Biological Rhythms, 17, 447-462.</p>\n\n<p><li>Julius S, Valentini C, Krause L, Ombao H, Kaciroti N. and Weder A. (2002). A \"gender blind\" relationship of lean body mass and blood pressure in the Tecumseh study. American Journal of Hypertension, 15(3), 258-263.</p>\n\n<p><li>Raz J, Zheng H, Ombao H and Turetsky B. (2003). Statistical Test for fMRI Based on Experimental Randomization, NeuroImage, 19(2), 226-232..</p>\n\n<p><li>Germain A, Buysse D, Ombao H, Monk T, Kupfer D and Hall M. (2003). Psychophysiological Reactivity and Coping Style Influence the Effect of Acute Stress on REM During Sleep. Journal of Psychosomatic Medicine, 65, 857-864.</p>\n\n<p><li>Hall M, Vasko R, Buysse D, Ombao H, Chen Q, Cashmere D, Kupfer D and Thayer J. (2004). Acute Stress Affects Heart Rate Variability During Sleep. Journal of Psychosomatic Medicine, 66, 56-62.</p>\n\n<p><li>Buysse D, Nofzinger E, Germaine A, Meltzer C, Wood A, Ombao H, Kupfer D and Moore, R. (2004). Regional Brain Glucose Metabolism During Morning and Evening Wakefulness in Humans: Preliminary Findings. SLEEP, 27, 1245-1254.</p>\n\n\n\n\n\n\r\n</div>\r\n\r\n\r\n<!-- section ends here -->\r\n\r\n\r\n</body>\r\n</html>\r\n", "encoding": "ascii"} |