scientific workflows thesis

To explain specific phenomena, scientists perform a sequence of tasks, e.g., to gather, analyze and interpret data, forming a scientific workflow. Depending on the complexity of the workflow, scientists require access to various kinds of tools, applications and infrastructures for individual tasks. Current approaches are often limited to managing these resources at design time, requiring the ...

She is a co-initiator of the popular open-source Kepler Scientific Workflow System and the coauthor of publications related to computational data science and e-Sciences at the intersection of scientific workflows, provenance, distributed computing, bioinformatics, observatory systems, conceptual data querying, and software modeling.

As such, this special issue presents various insights into the field of scientific workflows, which we categorise into three areas: 1. reviews of the current state of the art and taxonomies for better classification of systems; 2. usability, including provenance, re-purposing, repeatability and validation; and. 3.

This thesis investigates similarity measures for scientific workflows, and proposes and evaluates a novel method for scientific workflow comparison, and creates a large gold-standard corpus of expert-ratings on workflow similarity, with more than 2400 ratings provided.

EFFICIENT EXECUTION OF SCIENTIFIC WORKFLOWS ON BATCH-SCHEDULED CLUSTERS A THESIS SUBMITTED TO THE GRADUATE DIVISION OF THE UNIVERSITY OF HAWAI‘I AT MANOA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE IN COMPUTER SCIENCE MAY 2020 By Evan Hataishi Thesis Committee: Henri Casanova, Chairperson Edoardo Biagioni ...

review the workflow requirements of DOE’s science and national security missions, to assess the current state of the art in science workflows, to understand the impact of emerging extreme-scale computing systems on those workflows, and to develop requirements for automated workflow management in future and existing environments. This article is a

The WfInstances component targets the collection and curation of open-access production workflow instances from various scientific applications, all made available using a common format. A workflow instance is built based on logs of an actual execution of a scientific workflow on a distributed platform (e.g., clouds, grids, clusters) using a WMS.

In this thesis, we develop a set of methods to optimize the execution of large-scale scientific workflows in public clouds with both cost and deadline constraints with a two-step approach. Firstly, we present a set of methods to optimize the execution of scientific workflow in public clouds, with the Montage astronomical mosaic engine running ...