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Tutorials on Data ManagementL10 Analysis Workflows参考
Tutorials on Data Management;Review of typical data analyses
Reproducibility provenance
Workflows in general
Informal workflows
Formal workflows;After completing this lesson, the participant will be able to:
Understand a subset of typical analyses used
Define a workflow
Understand the concepts informal and formal workflows
Discuss the benefits of workflows ;
;Conducted via personal computer, grid, cloud computing
Statistics, model runs, parameter estimations, graphs/plots etc.
;Processing: subsetting, merging, manipulating
Reduction: important for high-resolution datasets
Transformation: unit conversions, linear and nonlinear algorithms
;Graphical analyses
Visual exploration of data: search for patterns
Quality assurance: outlier detection
;Statistical analyses
Conventional statistics
Experimental data
Examples: ANOVA, MANOVA, linear and
nonlinear regression
Rely on assumptions: random
sampling, random normally
distributed error, independent error
terms, homogeneous variance
Descriptive statistics
Observational or descriptive data
Examples: diversity indices, cluster
analysis, quadrant variance, distance methods,
principal component analysis, correspondence analysis
;Statistical analyses (continued)
Temporal analyses: time series
Spatial analyses: for spatial autocorrelation
Nonparametric approaches useful when conventional assumptions violated or underlying distribution unknown
Other misc. analyses: risk assessment, generalized linear models, mixed models, etc.
Analyses of very large datasets
Data mining discovery
Online data processing
;Re-analysis of outputs
Final visualizations: charts, graphs, simulations etc.
;Reproducibility at core of scientific method
Complex process = more difficult to reproduce
Good documentation required for reproducibility
Metadata: data about data
Process metadata: data about process used to create, manipulate, and analyze data
;Process metadata: Information about process (analysis, data organization,
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