1 / 25

Mind the Metadata

Mind the Metadata. Thomaz Bastiaanssen PhD researcher supervisors: John F Cryan, Marcus Claesson, Ted Dinan. Overview. What is metadata Why metadata is useful How to use metadata Take-home message. What is metadata. We already know what data is! Great news!

ivanbritt
Download Presentation

Mind the Metadata

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Mind the Metadata Thomaz Bastiaanssen PhD researcher supervisors: John F Cryan, Marcus Claesson, Ted Dinan

  2. Overview • What is metadata • Why metadata is useful • How to use metadata • Take-home message

  3. What is metadata • We already know what data is! • Great news! • Facts and statistics collected together for reference or analysis.

  4. What is metadata • Greek "μετά" • after, beyond, about itself

  5. What is metadata • Greek "μετά" • after, beyond, about itself • Metadata is data about data • (???)

  6. What is metadata • Example: Music

  7. What is metadata • Example: Music • Title, • Artist, • Album, • Year, • #, • Length, • Bit rate

  8. What is metadata • Example: Music • Title, • Artist, • Album, • Year, • #, • Length, • Bit rate • Metadata: • Data about your data

  9. Why metadata is useful Source: Wikipedia

  10. Why metadata is useful

  11. Why metadata is useful

  12. Why metadata is useful

  13. Why metadata is useful

  14. Why metadata is useful

  15. How to use metadata Source: Wikipedia

  16. How to use metadata Source: Wikipedia

  17. How to use metadata Source: Wikipedia

  18. How to use metadata • Designing an experiment and interrogating the data • Metadata allows us to check confounding factors • There will always be an environment • Example: • is there a relation between height vs Hip width in US soldiers

  19. How to use metadata

  20. How to use metadata

  21. How to use metadata

  22. How to use metadata

  23. How to use metadata • Making your data avaliable and accessible for others • Metadata forces you to document better • Planning metadata will allow you to usecohorts from other studies • Methodology matters! Comparing Apples and Oranges?: Next Generation Sequencing and Its Impact on Microbiome Analysis (Teagasc & APC)

  24. Take-home message • Metadata is data about your data • Powerful if kept consistent and clear • please keep names consistent! • most algorithms are case sensitive • for 300 samples, sample 1 should be numbered 001, not 1 • in excel, coloured cells and ambiguous comments are rarely suited for processing • Bioinformaticians should be involved from initial experimental design

  25. Thank you! Questions?

More Related