20122019
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Research Output 2012 2019

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Article
2019

Accelerometry Data in Health Research: Challenges and Opportunities: Review and Examples

Karas, M., Bai, J., Strączkiewicz, M., Harezlak, J., Glynn, N. W., Harris, T., Zipunnikov, V., Crainiceanu, C. M. & Urbanek, J., Jan 1 2019, (Accepted/In press) In : Statistics in Biosciences.

Research output: Contribution to journalArticle

Accelerometry
Accelerometers
Labeling
Explosions
Synchronization

Joint and Individual Representation of Domains of Physical Activity, Sleep, and Circadian Rhythmicity

Di, J., Spira, A., Bai, J., Urbanek, J., Leroux, A., Wu, M., Resnick, S., Simonsick, E., Ferrucci, L., Schrack, J. & Zipunnikov, V., Jul 15 2019, In : Statistics in Biosciences. 11, 2, p. 371-402 32 p.

Research output: Contribution to journalArticle

Sleep
Periodicity
Joints
Actigraphy
Baltimore
2018

A practical guide to big data

Smirnova, E., Ivanescu, A., Bai, J. & Crainiceanu, C. M., Jan 1 2018, (Accepted/In press) In : Statistics and Probability Letters.

Research output: Contribution to journalArticle

Biostatistics
Data analysis
Adjustment
Necessary
Culture

Multilevel Matrix-Variate Analysis and its Application to Accelerometry-Measured Physical Activity in Clinical Populations

Huang, L., Bai, J., Ivanescu, A., Harris, T., Maurer, M., Green, P. & Zipunnikov, V., Jan 1 2018, (Accepted/In press) In : Journal of the American Statistical Association.

Research output: Contribution to journalArticle

Congestive Heart Failure
Nested Design
Intraclass Correlation Coefficient
Mixed Effects
Decomposable
2017

A two-stage model for wearable device data

Bai, J., Sun, Y., Schrack, J. A., Crainiceanu, C. M. & Wang, M. C., 2017, (Accepted/In press) In : Biometrics.

Research output: Contribution to journalArticle

Two-stage Model
physical activity
Equipment and Supplies
Proxy
observational studies

Genome-wide prediction of DNase i hypersensitivity using gene expression

Zhou, W., Sherwood, B., Ji, Z., Xue, Y., Du, F., Bai, J., Ying, M. & Ji, H. K., Dec 1 2017, In : Nature Communications. 8, 1, 1038.

Research output: Contribution to journalArticle

Deoxyribonucleases
genome
gene expression
Deoxyribonuclease I
Transcriptome
2016

An activity index for raw accelerometry data and its comparison with other activity metrics

Bai, J., Di, C., Xiao, L., Evenson, K. R., LaCroix, A. Z., Crainiceanu, C. M. & Buchner, D. M., Aug 1 2016, In : PLoS One. 11, 8, e0160644.

Research output: Contribution to journalArticle

accelerometry
Accelerometry
Accelerometers
physical activity
actigraphy
2014
Baltimore
Longitudinal Studies
Linear Models
Body Mass Index
Health

Normalization and extraction of interpretable metrics from raw accelerometry data

Bai, J., He, B., Shou, H., Zipunnikov, V., Glass, T. A. & Crainiceanu, C. M., Jan 2014, In : Biostatistics. 15, 1, p. 102-116 15 p.

Research output: Contribution to journalArticle

Accelerometry
Normalization
Metric
Human Activities
Hip

Predicting human movement with multiple accelerometers using movelets

He, B., Bai, J., Zipunnikov, V., Koster, A., Caserotti, P., Lange-Maia, B., Glynn, N. W., Harris, T. B. & Crainiceanu, C. M., 2014, In : Medicine and Science in Sports and Exercise. 46, 9, p. 1859-1866 8 p.

Research output: Contribution to journalArticle

Wrist
Hip
Accelerometry
Walking
Life Style
2013

The evolutionary divergence of shiga toxin-producing escherichia coli is reflected in clustered regularly interspaced short palindromic repeat (CRISPR) spacer composition

Yin, S., Jensen, M. A., Bai, J., DebRoy, C., Barrangou, R. & Dudley, E. G., Sep 23 2013, In : Applied and Environmental Microbiology. 79, 18, p. 5710-5720 11 p.

Research output: Contribution to journalArticle

Clustered Regularly Interspaced Short Palindromic Repeats
Shiga-Toxigenic Escherichia coli
Shiga toxin-producing Escherichia coli
divergent evolution
toxin
2012

Movelets: A dictionary of movement

Bai, J., Goldsmith, J., Caffo, B. S., Glass, T. A. & Crainiceanu, C. M., 2012, In : Electronic Journal of Statistics. 6, p. 559-578 20 p.

Research output: Contribution to journalArticle

Time series
Accelerometer
Dictionary
Movement
Low Frequency