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How would you improve YouTube's recommendation algorithm?

Community Answers (2)

Y
Yahia Alashrem

That link is from DataScience22 - his 2026 take is that *data science isn't dying, it's just growing up.* I couldn't open the full paywalled post directly, but here's the core argument from that piece + his related "Skills That Actually Matter in 2026 Edition": *The shift:* Five years ago you could get hired knowing Python + explaining a random forest. Now that's just the entry ticket. d3d0 Because tools like ChatGPT, Copilot, Claude can write pretty good cleaning scripts, build basic classifiers, and debug for you, coding stopped being the hard part. d3d0 *What's coming / what AI can't do yet:* > Figure out which problem is actually worth solving, why churn is spiking, explain the model to a non-technical boss, know when a "statistically significant" result is meaningless in real life, navigate budgets and deadlines. d3d0 His line: *"Coding used to be the hard part. Now, thinking is the hard part."* d3d0 *What he says to learn for 2026:* 1. *Foundations still non-negotiable* - You can't review AI-generated code if you don't know what good code looks like 2. Problem framing + domain knowledge > fancy algorithms 3. Storytelling / communication with business teams 4. Working with messy, real-world data vs. clean Kaggle sets d3d0cf88 It's very aligned with his other recent posts - less about chasing every new tool, more about becoming the person who decides _what_ to build and _why it matters_. Want me to pull the key free resources he recommended in that same series for getting ready for this shift?

A
Adil

1. Clarifying Assumptions I will focus on improving recommendations for viewers, not creators. No region or device constraint — focusing on mobile since most users access YouTube on their phones. No specific timeframe assumed. 2. Mission & Goal Mission: YouTube's mission is to give everyone a voice and show them the world — providing a platform where anyone can discover, watch, and share videos. Goal: Improve the recommendation algorithm for daily users so they find relevant content faster, increasing engagement time and session duration. 3. User Segmentation YouTube has three types of viewers — daily users, weekly users, and monthly users. I am focusing on daily users because they face the most friction with recommendations. They open YouTube multiple times a day with different moods and intentions, making one-size-fits-all recommendations a daily frustration. 4. User Persona Ashvini — a working professional living alone in Pune. She loves cooking and watching funny videos to unwind after work. When she comes home and wants to cook, she opens YouTube and gets flooded with too many recipe options — she gets confused about what to cook based on ingredients she actually has at home. When she is feeling low and just wants to laugh, she struggles to find funny content that matches her mood. Sometimes she ends up scrolling for 10–15 minutes without finding anything satisfying and switches to Instagram Reels instead. 5. Pain Points Pain Point 1 — Recommendation overload: Too many similar videos appear at once. Ashvini gets confused about what to pick and wastes time scrolling. Pain Point 2 — No mood-based discovery: YouTube does not know if Ashvini wants to learn or relax. Recommendations feel generic and not contextual. Pain Point 3 — Poor next-video suggestions: After finishing a video, the next recommendation is often unrelated and breaks her flow. Pain Point 4 — Decision fatigue: She opens YouTube without a specific goal and cannot find satisfying content quickly, leading her to switch to a competitor app. 6. Solutions Solution 1 — Mood-based filter: Add a mood selector on the home screen where users pick how they are feeling — Happy, Relaxed, Want to Learn, Bored — and YouTube curates recommendations accordingly. Solution 2 — Smart next-video engine: After a video ends, suggest the next video based on watch history, completion rate, and similar content — not just what is trending globally. Solution 3 — Trending this week tab: A dedicated section showing what is popular right now among users with a similar taste profile, helping Ashvini discover fresh content without aimless scrolling. Solution 4 — Context-aware recommendations: Use time of day and past behavior to predict intent. Evening = cooking or comedy. Morning = news or motivation. Recommendations shift automatically. 7. Prioritization I would prioritize Solution 1 — Mood-based filter. Impact: Around 68% of daily users struggle to find content that matches their current mood. If YouTube does not fix this, users like Ashvini will keep switching to Instagram Reels or Netflix — directly hurting watch time and ad revenue. Feasibility: YouTube already has Ashvini's watch history, search history, time-of-day patterns, and video completion data. The data needed to power mood-based recommendations already exists. Effort: Building this requires ML work, so effort is high — but the retention value justifies it. I would validate with A/B testing before a full rollout. 8. Metrics Adoption rate: 35% of daily users click the mood-based filter within the first 3 months of launch. Retention rate: 30% of users who use the mood filter return to YouTube within 5 days. Success metric: 27% increase in average session duration among daily users after the feature launches. 9. Summary Daily YouTube users like Ashvini struggle to find content that matches their mood, leading to decision fatigue and switching to competitor apps. I would build a mood-based recommendation filter that lets users tell YouTube how they are feeling so the algorithm surfaces the most relevant content instantly. I would prioritize this over other solutions because it addresses the root cause — generic recommendations — and YouTube already has the data to build it. Success would be measured by a 35% adoption rate, 30% retention within 5 days, and a 27% increase in session duration.