On-Line Systems with Long-Range Goals

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" summary

Presents an empirical-plus-theory package: on Stack Overflow the civic duty badge (300 votes) and Electorate badge (600 question votes) show a measurable ramp-up in the rewarded actions right before the win, and a Coursera randomized experiment finds higher forum activity when badge progress or bylines are made salient. Models combine a state‑space dynamic program and a directed acyclic graph with a present bias multiplier to explain procrastination, task abandonment, and choice reduction; proves exponential worst‑case cost ratios require a k‑fan minor and shows the node‑deletion “make traversable” problem is NP‑hard.

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" chapters (19)

1. 0:00Introduction
2. 0:44The curve issue
3. 2:01Guiding framework
4. 3:53Stack Overflow
5. 6:58First Model
6. 21:00Badges
7. 23:00Multistep plans
8. 25:00Geometric discounting
9. 30:00Choice reduction
10. 31:53Statespaces
11. 33:28Story
12. 34:12Task abandonment
13. 35:21Deadlines and classes
14. 37:41Graphs
15. 39:11Graph Miners
16. 41:32Choice Reduction Problem
17. 43:16Latent Story
18. 43:56Deceptive Practices
19. 47:14Commitment Devices

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