Build and Host Real-world Machine Learning Services from Scratch @ pycontw2019
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Build and Host Real-world Machine Learning Services from Scratch @ pycontw2019
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Title: Build and Host Real-world Machine Learning Services from Scratch Author: Joe Tseng from Umbo CV
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Build and Host Real-world Machine Learning Services from Scratch @ pycontw2019
- 1. Joe | AI Engineer
- 2. Building and Hosting Real-World Machine Learning Services from Scratch How to make A.I. work?
- 3. Joe Tseng • AI engineer • Tainan.py - organizer • PyConTW 15/16/18/19 - speaker • Our booth
- 4. Why this talk? 😎 Cool stuff to share 🛠 An extended version of the previous talk
- 8. Conventional 2D Trip Zone Umbo 3D Virtual Tripwire Home Surveillance: Intruder Detection pedestriancamera intruder cat Object/Event Recognition ! high precision / low false alarm performance • 3D localized detection • precise dimension measurement • machine recognition DEMO1 DEMO2 DEMO3 Advantage November 2014 @AppWorks
- 12. Image- LQ (t+1) DQTN DQTN Image- LQ (t+1) Image- HQ (t) Image- HQ (t+3) Image- LQ (t+2) DQTN DQTN Image- LQ (t+2) CNN-3x3(3) CNN-1x1(16) CNN-3x3(16) Reconstructed HQ(t+1) CNN-3x3(3) CNN-1x1(16) CNN-3x3(16) Reconstructed HQ(t+2) Fusion Fusion ACCV 2016 @Songde Rd.
- 13. Demo Workshop in CVPR 2016 @Songde Rd.
- 15. • Human segmentation + others • Cloud-based solution Convergence I usually recommend to brainstorm at least six different projects … source
- 17. Idea: send camera streams to the cloud, and then do cool stuff 🐣 Autonomous video security platform
- 18. Our Solution Umbo Learning Cameras Real-time alerts Umbo Light
- 19. Issues Need to Be Solved Cameras - hardware/firmware/design Cloud - provider/streaming/application A.I. - PoC => service WebSocket
- 20. • On production in 2016 • From PoC projects to online services TruePlatform and Umbo Light
- 22. • Bugs • Feature improvement • Infrastructure improvement • Deployment • Healthy check • Monitoring 🚒 🔥 Service 🔥 🚒
- 24. When Real-World Services Meet Real-World Challenges Factory 95% accuracy 70% 45% 80% Parking Lot 55% 40%
- 25. How to improve this?
- 26. Our A.I. solution consists of heuristics algorithms, machine learning models, and, data processing pipelines. Which one should we improve first? 🧐
- 27. Collect More Data Data Data and tweak the machine learning models in the meantime.
- 28. Your data processing pipeline should support data collection tasks: customer feedback sampling algorithms false-negative miner … How and where to collect data?
- 29. • Can dispatch tasks to • Our own labelers • Third-party labelling services • AWS Mechanical Turk • 😃 integration welcome! • Audit mechanism • Backend: • Flask + plugins • NumPy • Celery/Redis/Pymongo • uWSGI Labeling Platform source: https://github.com/nightrome/cocostuff
- 31. The Simplified CV Architecture Media Server CV Forwarder Load Balancer ZMQ Stream Router Stream Manager Stream Manager Stream Manager Load Balancer CV Worker CV Worker CV Worker HTTP Alert Endpoint +
- 32. The Simplified CV Architecture Media Server CV Forwarder Load Balancer ZMQ Stream Router Stream Manager Stream Manager Stream Manager Load Balancer CV Worker CV Worker CV Worker HTTP Alert Endpoint +
- 33. • Stream Router/Manager was written by Python2 ❤ ❤ • Python2 => Python3 • byte string / decode • isinstance • format • API changes • Results • Python3 ❤ ❤ ❤ • Enable a lot of cool features • F-strings, typing, asyncio, tracemalloc, etc. Python 2 to 3
- 34. • Refactor Stream Manager • Happy to use async/await • Use pipeline pattern • Still use run_in_executor/ ThreadPoolExecutor if needed • Results • Cleaner architecture • Performance boost Adopt Python asyncio
- 35. • Refactor CV Worker • Lua => Python • Torch => PyTorch • Use aiohttp server • Results • Easier to maintain/upgrade • High performance • GPU resources are the bottleneck • Python package ecosystem 👍 Torch to PyTorch
- 36. • Debug • Use pyflame to profile the program • Use tracemaclloc to find memory usage • Use Valgrind to check your C++ code • Results • Understand more and gotcha! Fighting Bugs
- 37. 🏗 Boost maintainability 🕵 Better infrastructure monitoring 🐞 Have more features Outcomes
- 40. Good examples Uber: Michelangelo Airbnb: Bighead
- 41. Please make sure you have clear goals, practical user stories, and enough resources Before you start building the pipeline
- 42. • Goals • Timeline • Outcome • User stories • Blueprint • Concerns • Resource • Infra eng • Data eng • Researcher Behind the Machine Learning Pipelines
- 43. • ✅ Data collection • ✅ Model training • ✅ Model evaluation • 🧐 Model deployment Our Progress
- 45. • Cloud • Computing/Network => architecture • GPU => throughput + algorithm • ML pipeline • Computing • GPU => provider + integration • Labeling => automation Cost
- 46. • SLO • Monitor first • Set up alerts • Oncall process • Maintainability • DevOps • Adopt engineering best practices Service Level Objectives and Maintainability
- 48. Why Edge? Cost / Performance / Latency / Network Traffic / Security
- 49. • Launched in 2019.06 • From Chaos to Stability 🚒 • Edge + Cloud solution • ML pipeline is necessary • Data • Model Our AiCamera
- 51. This is our story, how about yours? 🤔
- 52. Product mindset matters After all, you have to serve your ML service to the real-world 😏 The takeaway
- 53. What’s next?
- 54. Thank you
- 55. • AI Engineer • Backend Engineer • Front-end Engineer • https://umbocv.ai/join_us • Our booth: Join Our Story