101 reputation
2
bio website careers.stackoverflow.com/…
location San Francisco, CA
age 43
visits member for 1 year, 7 months
seen Jul 4 at 7:43

i build Systems & Tools for Analysis, Prediction, Visualization, & Simulation.

i also design, code, and deploy complete Machine Learning-based applications (e.g., anti-fraud filter, recommendation engine, monitoring/anomaly detectors), usually designed as modular internal thrift services decoupled from the main app.

Techniques:

  • Machine Learning: in particular, recursive descent parser (CART/C4.5), Multi-layer Perceptron, SVM/SVR, Kernel Machines, kNN/kdtree, Probabilistic Graphical Models (eg, Markov Random Field)

  • Dimension Reduction Techniques: spectral decomposition (PCA & kPCA, kLDA), Kohonen Map (self-organizing map)

  • Social Network Analysis & Visualization: using graph theoretic techniques for e.g., community detection, id of members essential for network health/growth; identify nascent sub-communities; (particular fluency GraphViz, the premiere tool for graph layout/visualization, NetworkX, the primary network analysis library for python, and d3).

  • Analysis & Modeling of Time-Dependent Data

  • Optimization: Combinatorial Optimization and Constraint-Satisfaction Programming

  • Numerical Methods: e.g., matrix decomposition, Monte Carlo techniques, Gaussian quadrature, finite difference methods

  • Data Modeling for "Non-Relational" systems (in particularly Redis and MongoDB) and for relational (ROLAP), multi-dimensional (MOLAP), and hybrid (HOLAP) Data Warehouse systems using conventional relational/SQL servers.


toolchain:

  • python
  • C
  • cython
  • SciPy + NumPy + Matplotlib
  • javascript
  • R
  • redis
  • riak
  • HDF5 (& pytables, h5py)
  • graphviz
  • node.js
  • flask/werkzeug (python web framework)
  • storm (distributed processing)
  • d3.js (svg template primitives for rendering plots in the browser)
  • git (& gitHub)
  • vagrant

No recruiters


This user has not answered any questions
This user has not asked any questions
This user has not participated in any tags
sort
This user has no active bounties

1 Vote Cast

all time   by type  
1 up 1 question
0 down 0 answer