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Allison Gilmore, Data Scientist, Ayasdi at MLconf ATL - 9/18/15

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Topological Learning with Ayasdi: Ayasdi has a unique approach to machine learning and data analysis using topology. This framework represents a revolutionary way to look at and understand data that is orthogonal but complementary to traditional machine learning and statistical tools. In this presentation I will show you what is meant by this statement: How does topology help with data analysis? Why would you use topology? I will illustrate with both synthetic examples and problems we’ve solved for our clients.

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Allison Gilmore, Data Scientist, Ayasdi at MLconf ATL - 9/18/15

  1. 1. Topological Learning September 18, 2015 Allison Gilmore, Ph.D.
  2. 2. Company Confidential & Proprietary 2 Why Topology? Data has shape. Shape has meaning. You already know this.
  3. 3. Company Confidential & Proprietary Shape Encodes Structure and Meaning 3 Line Clusters Flares v v v v vv v v v v v v v v v v v v v Loop
  4. 4. Company Confidential & Proprietary Complex Data Has ALL These Shapes 4
  5. 5. Company Confidential & Proprietary Data Comes With the Wrong Coordinates 5
  6. 6. Company Confidential & Proprietary Topological Networks Capture Shape 6 • Color by a real-valued function • Bin in the image of that function • Cluster within bins, in the original space • Connect clusters that share data points
  7. 7. Company Confidential & Proprietary Capturing Complex Shapes
  8. 8. Company Confidential & Proprietary 8 Shape shows underlying properties of data that yield insights and meaning. • Nodes are groups of similar objects • Edges connect similar nodes • Colors let you see values of interest • Node position on the screen does not matter Network Orientation
  9. 9. Company Confidential & Proprietary Disease State & Model Choice
  10. 10. Company Confidential & Proprietary 10 1982 2015 30 years of market and economic data and 150+ variables The Shape of a Market Regimes Progressions Cycles
  11. 11. Company Confidential & Proprietary 11 All Recessions – 1980-Present Recessions Are Similar…
  12. 12. Company Confidential & Proprietary 12 1982 Recovery 2002 Recovery …But Recoveries Are Different
  13. 13. Company Confidential & Proprietary Build Better Models 13 Identify market regimes that are analogous to the current state. Profit from precise asset allocation and liquidity forecasting strategies.
  14. 14. Company Confidential & Proprietary Topology Yields Principled Local Models 16
  15. 15. Company Confidential & Proprietary 17 Questions? Allison.Gilmore@Ayasdi.com www.ayasdi.com
  16. 16. Corporate Headquarters 4400 Bohannon Drive Suite #200 Menlo Park, CA 94025 ayasdi.com
  17. 17. Company Confidential & Proprietary PCA Finds 3 Clusters
  18. 18. Company Confidential & Proprietary TDA Finds 4 Clusters

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