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Release Notes - TimeBack Anti-Patterns

2025-09-26

Summary: Antipattern Detection integrated and working in Timeback app. Improvement in Detection Performance. Visibility for prompt engineering.

๐Ÿš€ What is shipped this week?

โฉ Whatโ€™s coming next?

2025-09-05

Summary: NonLearningContent touches 96-98% Accuracy. Experiment with more segment durations. Bug fixes in test harness.

๐Ÿš€ What is shipped this week?

๐Ÿ“ˆ Whatโ€™s coming next?

2025-08-29

Summary: Test Harness Improvements. Experimenting with varying segment durations. Bug Fixes. Minor Performance Improvements.

๐Ÿš€ What is shipped this week?

Analyzer Dashboard

๐Ÿ“ˆ Whatโ€™s coming next?

2025-08-22

Summary: FamilyType Metric added to test harness. Test Cases fixed. Test Harness revamp complete. Bug Fixes.

๐Ÿš€ What is shipped this week?

Analyzer Dashboard

๐Ÿ“ˆ Whatโ€™s coming next?

2025-08-15

Summary: New Output Analyzer and Prompt Improvement Dashboard. Added โ€œIntersection over Unionโ€ as an evaluation metric. Improved Distractions Detection. Bug Fixes.

๐Ÿš€ What is shipped this week?

Analyzer Dashboard

๐Ÿ“ข Product Demo and X Posts

๐Ÿ“ˆ Whatโ€™s coming next?

2025-08-08

Summary: The new framework for evaluation proposed last week is implemented and shipped, the metrics reported with it. Minor improvements in Disengaged antipattern detection and overall detection. Next work is on Distractions and the correct classification of Antipattern types.

๐Ÿš€ What is shipped this week?

๐Ÿ“ˆ Whatโ€™s coming next?

2025-08-01

Summary: The Timeback app now wants to make the setting realtime again as opposed to generating reports later for parents. This is being worked at in the production codebase directly, so our earlier pipeline code is now on hold. The architecture and flow is vastly differnt in the production backend, where some optimizations and improvements were made this week.

Timeback 01 Aug

๐Ÿš€ Key Deliverables & Achievements

๐Ÿ“ˆ Strategic Roadmap & Next Milestones

2025-07-25

Summary: Integrated our AI processors into the customerโ€™s production codebase, enabling end-to-end runs on 5-minute video segments. Fixed critical memory issues, boosted Socializing precision to 70%, and automated results reporting to Google Sheets with AI reviewer. Timeback 25 July

๐Ÿš€ What is shipped this week?

๐Ÿ“ˆ Whatโ€™s coming next?

2025-07-18

Summary: Achieved ~80% F1 score on DISTRACTED detection. Developed insight classification with 85.4% accuracy. ai_video_processing

๐Ÿš€ What is shipped this week?

๐Ÿ”ฌ Technical Insights

๐Ÿ“ˆ Whatโ€™s coming next?

This release marks a significant shift from standalone development to direct production integration, establishing a collaborative framework for continuous improvement with the customerโ€™s live system.

2025-07-11

Summary: Achieved strong performance in DISTRACTION detection processor with F1 score of 75.86%. Completed comprehensive audio dependency analysis across 10 videos (proving audio is essential for detection). Implemented robust error handling with real-time notifications and grace period matching for better metric accuracy.

๐Ÿš€ What is shipped this week? Timeback 11 July

๐Ÿ”ฌ Technical Experiments

๐Ÿ“ˆ Whatโ€™s coming next?

2025-07-04

Summary: Achieved major scalability milestone by successfully load testing and deploying 1000-video bulk processing capability. Discovered and documented critical Gemini API rate limit constraints. Optimized pipeline infrastructure with FARGATE and ffmpeg improvements, reducing processing time significantly. Improved DISTRACTIONS detection to 72.27% F1 score on 10+ hours of video content.

๐Ÿš€ What is shipped this week?

๐Ÿ“Š Performance Metrics

๐Ÿ“ˆ Scaling Achievements

๐Ÿ”ฌ Experiments & Analysis

๐Ÿ“‹ Technical Debt & Issues

X Post

๐Ÿ“ˆ Whatโ€™s coming next?

2025-06-27

Summary: Documented detailed architecture for the bulk processing pipeline, with each individual Antipattern detection flow. Analyzed the performance of the pipeline across token usage, latency and scalability. Reduced the pipeline latency by 4-5x by optimizing the ffmpeg video processing tasks and parallelization.

Pipeline Flow

What is shipped this week?

Experiments

Whatโ€™s coming next?

2025-06-20

Summary: Successfully deployed bulk processing endpoints with comprehensive performance metrics tracking. Infrastructure scaled to support 50 concurrent jobs. Strategic pivot based on customer feedback - pausing Test Harness experiments to await new antipattern definitions while focusing on cost analysis and scalability assessment for potential 1,000 student deployment.

Bulk Endpoitn Flow

๐Ÿš€ What is shipped this week?

๐Ÿ“ˆ Whatโ€™s coming next?

2025-06-13

Summary: Achieved 70% F1 score on IDLING detector through systematic analysis and architectural improvements. Completed comprehensive technical architecture design with 4 ITDs. Created architecture for production-ready bulk processing API with full documentation and customer integration materials.

๐Ÿš€ What is shipped this week?

๐Ÿ“Š Where have we reached?

Antipattern F1 Score Status
Away From Seat โœ… 92.00%
Idling (No webcam) โœ… 92.62%
Non Learning Content โ˜‘๏ธ 85.00%
Idling (Webcam) ๐Ÿ“ˆ 70.07%
Socializing ๐Ÿ•› 60.00%

๐Ÿ“‹ Research & Recommendations

๐Ÿ“ˆ Whatโ€™s coming next?

2025-06-06

Summary: Implemented and Achieved 85% score on NON_LEARNING_CONTENT antipattern. Resumed work on SOCIALIZING antipattern, current F1 score is 53%. Created an Analysis Dashboard to quickly analyze the results of the detectors and iterate on them.

๐Ÿš€ What is shipped this week?

๐Ÿ“Š Where have we reached?

Antipattern Aggregate F1 Score (from Test harness)
Away From Seat โœ… 92.00 %
Idling (No webcam) โœ… 92.62 % (on 8 videos)
Non Learning Content โ˜‘๏ธ 85.00 %
Idling (Webcam) ๐Ÿ“ˆ 70.07 %
Socializing ๐Ÿ•› 53.00 %

๐Ÿ“ข Build in Public

๐Ÿ“ˆ Whatโ€™s coming next?

2025-05-30

Summary: Parked SOCIALIZING for now, awaiting customer clarification. Improved scores for AWAY_FROM_SEAT to 92%. Started on IDLING and IDLING_NO_WEBCAM.

๐Ÿš€ What is shipped this week?

๐Ÿ“Š Where have we reached?

Antipattern Aggregate F1 Score (from Test harness)
Away From Seat โœ… 92.00 %
Idling (No webcam) โœ… 92.62 % (on 8 videos)
Idling (Webcam) ๐Ÿ“ˆ 61.90 %
Socializing (while active) ๐Ÿ•› 28.64 % (paused, awaiting clarification)
Socializing (while inactive) ๐Ÿ•› 50.98 % (paused, awaiting clarification)

๐Ÿ“ˆ Whatโ€™s coming next?

2025-05-23

Summary: New pipeline architecture deployed and running. Endpoints working. SOCIALIZING and AWAY_FROM_SEAT implemented. IDLING WIP.

๐Ÿš€ What is shipped this week?

๐Ÿ“Š Where have we reached?

Antipattern Aggregate F1 Score (from Test harness)
Socializing (while active) 28.64 %
Socializing (while inactive) 50.98 %
Away From Seat 72.82 %

X-Post & Demo

๐Ÿ“ˆ Whatโ€™s coming next?

2025-05-16

Summary: Shifted from a realtime pipeline to a scalable postprocessing pipeline for processing sessions in bulk.

๐Ÿ›ž New Scalable PostProcessing Pipeline

๐Ÿ”„ Pipeline Status

โžก๏ธ Next Steps

2025-05-09

Summary: Implemented the framework to test all 4 high priority antipatterns with test harness and got initial numbers.

๐Ÿšง Testing

Antipattern Average F1 Score (from Test harness)
Socializing 65.8 %
Non Learning Content 20.8 %

โžก๏ธ Next steps:


2025-05-05

Summary: Implemented the initial framework for testing Anti-Pattern detectors with Test Harness

๐Ÿšง Testing

โžก๏ธ Next steps: