📚 Data Science Riddle
Model Accuracy improves after dropping half the features. Why?
Model Accuracy improves after dropping half the features. Why?
Anonymous Quiz
12%
Model became smaller
70%
Overfitting reduced
11%
Data size shrank
6%
Training faster
❤3
Understanding the Forecast Statistics and Four Moments (4P).pdf
181.8 KB
Statistical Moments (M1, M2) for Data Analysis
Here are 5 curated PDFs diving into the mean (M1), variance (M2), and their applications in crafting research questions and sourcing data.
A channel member requested resources on this topic and we delivered.
If you have a topic you want resources on let us know, and we’ll make it happen!
@datascience_bds
Here are 5 curated PDFs diving into the mean (M1), variance (M2), and their applications in crafting research questions and sourcing data.
A channel member requested resources on this topic and we delivered.
If you have a topic you want resources on let us know, and we’ll make it happen!
@datascience_bds
❤8
📚 Data Science Riddle
Why do we use Batch Normalization?
Why do we use Batch Normalization?
Anonymous Quiz
29%
Speeds up training
42%
Prevents overfitting
9%
Adds non-linearity
20%
Reduces dataset size
❤3
📚 Data Science Riddle
Your object detection model misses small objects. Easiest fix?
Your object detection model misses small objects. Easiest fix?
Anonymous Quiz
21%
Use larger input images
32%
Add more classes
33%
Reduce learning rate
14%
Train longer
🤖 AI that creates AI: ASI-ARCH finds 106 new SOTA architectures
ASI-ARCH — experimental ASI that autonomously researches and designs neural nets. It hypothesizes, codes, trains & tests models.
💡 Scale:
1,773 experiments → 20,000+ GPU-hours.
Stage 1 (20M params, 1B tokens): 1,350 candidates beat DeltaNet.
Stage 2 (340M params): 400 models → 106 SOTA winners.
Top 5 trained on 15B tokens vs Mamba2 & Gated DeltaNet.
📊 Results:
PathGateFusionNet: 48.51 avg (Mamba2: 47.84, Gated DeltaNet: 47.32).
BoolQ: 60.58 vs 60.12 (Gated DeltaNet).
Consistent gains across tasks.
🔍 Insights:
Prefers proven tools (gating, convs), refines them iteratively.
Ideas come from: 51.7% literature, 38.2% self-analysis, 10.1% originality.
SOTA share: self-analysis ↑ to 44.8%, literature ↓ to 48.6%.
@datascience_bds
ASI-ARCH — experimental ASI that autonomously researches and designs neural nets. It hypothesizes, codes, trains & tests models.
💡 Scale:
1,773 experiments → 20,000+ GPU-hours.
Stage 1 (20M params, 1B tokens): 1,350 candidates beat DeltaNet.
Stage 2 (340M params): 400 models → 106 SOTA winners.
Top 5 trained on 15B tokens vs Mamba2 & Gated DeltaNet.
📊 Results:
PathGateFusionNet: 48.51 avg (Mamba2: 47.84, Gated DeltaNet: 47.32).
BoolQ: 60.58 vs 60.12 (Gated DeltaNet).
Consistent gains across tasks.
🔍 Insights:
Prefers proven tools (gating, convs), refines them iteratively.
Ideas come from: 51.7% literature, 38.2% self-analysis, 10.1% originality.
SOTA share: self-analysis ↑ to 44.8%, literature ↓ to 48.6%.
@datascience_bds
❤4
🚀 Databricks Tip: REPLACE vs MERGE
When updating Delta tables, you’ve got two powerful options:
🔹 REPLACE TABLE … ON
📚 Like throwing away the entire library and rebuilding it.
- Drops the old table & recreates it.
- Schema + data = fully replaced.
- ⚡ Super fast but destructive (old data gone).
- ✅ Best for full refreshes or schema changes.
🔹 MERGE
📖 Like updating only the books that changed.
- Works row by row.
- Updates, inserts, or deletes specific records.
- 🔍 Preserves unchanged data.
- ✅ Best for incremental updates or CDC (Change Data Capture).
⚖️ Key Difference
- REPLACE = Start fresh with a new table.
- MERGE = Surgically update rows without losing the rest.
👉 Rule of thumb:
Use REPLACE for full rebuilds,
Use MERGE for incremental upserts.
#Databricks #DeltaLake
When updating Delta tables, you’ve got two powerful options:
🔹 REPLACE TABLE … ON
📚 Like throwing away the entire library and rebuilding it.
- Drops the old table & recreates it.
- Schema + data = fully replaced.
- ⚡ Super fast but destructive (old data gone).
- ✅ Best for full refreshes or schema changes.
🔹 MERGE
📖 Like updating only the books that changed.
- Works row by row.
- Updates, inserts, or deletes specific records.
- 🔍 Preserves unchanged data.
- ✅ Best for incremental updates or CDC (Change Data Capture).
⚖️ Key Difference
- REPLACE = Start fresh with a new table.
- MERGE = Surgically update rows without losing the rest.
👉 Rule of thumb:
Use REPLACE for full rebuilds,
Use MERGE for incremental upserts.
#Databricks #DeltaLake
❤4
📚 Data Science Riddle
You have messy CSVs arriving daily. What's your first production step?
You have messy CSVs arriving daily. What's your first production step?
Anonymous Quiz
10%
Train model right away
13%
Manually clean each file
61%
Automate data validation pipeline
16%
Combine all into one CSV