mailed to you Your tasks 1 Identify the services that you will be using 2

Mailed to you your tasks 1 identify the services that

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mailed to you Your tasks: 1.Identify the servicesthat you will be using 2.Identify the sequence of 3.Identify what inputsand 4. Sketch the information flow from service request to service request 14
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3. Benefits of Using Computational Workflows 15
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Benefits of Using Workflows u Simple programming paradigm u Modular assembly u Composing heterogeneous code u Abstraction u Data preparation steps u Data visualization steps u Documenting provenance: reproducibility u Automatic processing of multiple inputs u Large-scale processing u Facilitating communication across data science expertise areas 16
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Simple Programming Paradigm 17
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Modular Assembly [Sethi et al MM’13]
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Composing Heterogeneous Code 19
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Describing a Computation at Different Levels of Abstraction METHODS ALGORITHMS IMPLEMENTATIONS Correlation Scoring Chi Squared R CODE
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Include Data Preparation Steps [Kale et al 2013]
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Include Data Visualization Steps 22
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Intermediate Data Visualization Steps Visualizations of intermediate results Visualizations of final results Termite LDA-based visualizations [Chuang et al 2012]
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Documenting How Results Are Obtained: Provenance Each time the workflow is executed, the system records the provenance of the results: what workflow was used, what its components were, what the input data was, and what values were assigned to the parameters.
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Reproducibility through Provenance Recording u Repeatability : the same lab can re-run a (data analysis) method and get the same results u Not so obvious due to new versions of software, people forgetting what was done, people moving, etc.
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  • Fall '17
  • simple programming paradigm, data preparation steps

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