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Modeling speech analysis workflows in VisTrails

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posted on 28.03.2022, 12:38 by Alec Scheuffele
Reproducibility of results is a fundamental component of conducting comprehensive research. When experimenting with data-analysis pipelines, time spent managing low-level processes and juggling inconsistencies between tools is a barrier to effective research. Rather than exclude persons who might not have a strong technical/programming background to work around these limits, Utilising a "higher level" workflow environment could be of great benefit in certain domains - for this project, that domain is acoustic phonetics. This project is an exploration into the effective use of the workflow sofware "VisTrails" for building acoustic phonetics workflows. VisTrails is a python-based application where workflows can be visually constructed using a "drag and drop" interface of logic modules and linked input/output ports. Users can test workflows under a variety of operational parameters without the need to modify low-level source-code. Furthermore, users can create custom VisTrails packages tailored for particular domains. These can be bundles and shared between colleagues for easily repeatable and extensible experiments. In this project, the core design elements of workflows are investigated within the context of acoustic phonetics, and a target analysis task (classifying phones using formant trajectory data) is implemented at various levels of module granularity. The benefits/drawbacks of each approach are investigated, and assessments are made on the practicality of working with VisTrails workflows, and their component modules, at these levels of abstraction.

History

Alternative Title

Modelling speech analysis workflows in VisTrails.

Table of Contents

1. Introduction -- 2. Background -- 3. VisTrails -- 4. Building a classifier for recognising phones -- 5. VisTrails implementations -- 6. Conclusions and future work -- 7. Abbreviations -- Appendix.

Notes

Bibliography: pages 57-59 Empirical thesis.

Awarding Institution

Macquarie University

Degree Type

Thesis bachelor honours

Degree

BSc (Hons), Macquarie University, Faculty of Science and Engineering, School of Engineering

Department, Centre or School

School of Engineering

Year of Award

2017

Principal Supervisor

Steve Cassidy

Rights

Copyright Alec Scheuffele 2017. Copyright disclaimer: http://mq.edu.au/library/copyright

Language

English

Extent

1 online resource (xi, 61 pages diagrams)

Former Identifiers

mq:70410 http://hdl.handle.net/1959.14/1263481

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