Slack After Dark - A fun, Slack-based, AI-driven dating app demo I created to showcase an end-to-end, containerized, and integrated ML workflow. Some of the highlights include online model predictions and online model training, using a mix of cutting-edge technologies with Slack as the user interface. Presented at Advanced Spark and Tensorflow Meetup, February 2019.

1. 2 © 2018 MapR Technologies, Inc. // MapR Confidential

2. 3 © 2018 MapR Technologies, Inc. // MapR Confidential
Demonstrate an end-to-end containerized & integrated ML workflow –
showcasing Online Model Predictions and Online Model Training using
PipelineAI, MapR Data Platform and Slack!
“Slack After Dark“ DEMO
BACKEND SERVICE
“AI Monkey” Slack app to help us perform the “DataOps”
tasks – Test, train and deploy the model.
FRONTEND SERVICE
“Slack After Dark” Slack app – AI-powered mobile dating app
representing the end-user application.

3. 4 © 2018 MapR Technologies, Inc. // MapR Confidential
Advantages of PipelineAI
● Every Framework, Every Hardware, Every Cloud
● Dashboard to manage the lifecycle of models
from local development to live production
● Generates optimized runtimes for the models
● Custom targeting rules, shadow mode, and
percentage-based rollouts to safely test features
in live production
● Continuous Model Training, Continuous Pipeline
Optimization, Continuous Model Validation
https://pipeline.ai/

4. 5 © 2018 MapR Technologies, Inc. // MapR Confidential
Implementing Rendezvous Architecture for Online Prediction
Model 2
Model 1
Decoy
Canary
Mirrored Traffic
Live Traffic
RENDEZVOUS / ENSEMBLE
Select prediction with highest confidence
(via customizable Objective Function)
REQUEST
RESPONSE
Archive
Compare Canary to live models
Replay for future use
Streams
Distributed
Filesystem
For more details on the Rendezvous Architecture see:
https://mapr.com/ebook/machine-learning-logistics/
/predict
/predict-
rendezvous

5. 6 © 2018 MapR Technologies, Inc. // MapR Confidential
Implementing Online Model Training
off Streaming Data
Model Training
Build New
Model
Deploy
Model 3 (Canary)
Training
Stream
Model 2
Model 1
INNOVATION
FROM BATCH
TO REAL-TIME!
Streaming Data
Distributed Filesystem
/fix – labels, trains and deploys the new model all together
/label
/train
/deploy
/fix

6. 7 © 2018 MapR Technologies, Inc. // MapR Confidential
User and Scoring
Database
Slack After Dark App
/login /match
Industry‘s unique AI-
powered scoring and
matching algorithms

7. 8 © 2018 MapR Technologies, Inc. // MapR Confidential
DEMO