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Data science and machine learning hub Python, SQL, stats, ML, deep learning, projects, PDFs, roadmaps and AI resources. For beginners, data scientists and ML engineers 👉 https://rebrand.ly/bigdatachannels DMCA: @disclosure_bds Contact: @mldatascientist
Показати більше📈 Аналітичний огляд Telegram-каналу Data science/ML/AI
Канал Data science/ML/AI (@datascience_bds) у мовному сегменті Англійська є активним учасником. На даний момент спільнота об'єднує 13 667 підписників, посідаючи 9 391 місце в категорії Технології та додатки та 31 743 місце у регіоні Індія.
📊 Показники аудиторії та динаміка
З моменту свого створення невідомо, проект продемонстрував стрімке зростання, зібравши аудиторію у 13 667 підписників.
За останніми даними від 08 червня, 2026, канал демонструє стабільну активність. Хоча за останні 30 днів спостерігається зміна кількості учасників на 150, а за останні 24 години на 4, загальне охоплення залишається високим.
- Статус верифікації: Не верифікований
- Рівень залученості (ER): Середній показник залученості аудиторії становить 7.97%. Протягом перших 24 годин після публікації контент зазвичай збирає 2.27% реакцій від загальної кількості підписників.
- Охоплення публікацій: В середньому кожен допис отримує 1 089 переглядів. Протягом першої доби публікація в середньому набирає 310 переглядів.
- Реакції та взаємодія: Аудиторія активно підтримує контент: середня кількість реакцій на один пост – 5.
- Тематичні інтереси: Контент зосереджений навколо ключових тем, таких як panda, learning, row, api, ethic.
📝 Опис та контентна політика
Автор описує ресурс як майданчик для висловлення суб'єктивної думки:
“Data science and machine learning hub
Python, SQL, stats, ML, deep learning, projects, PDFs, roadmaps and AI resources.
For beginners, data scientists and ML engineers
👉 https://rebrand.ly/bigdatachannels
DMCA: @disclosure_bds
Contact: @mldatasci...”
Завдяки високій частоті оновлень (останні дані отримано 09 червня, 2026), канал підтримує актуальність та високий рівень охоплення публікацій. Аналітика показує, що аудиторія активно взаємодіє з контентом, що робить його важливою точкою впливу в категорії Технології та додатки.
13 667
Підписники
+424 години
+437 днів
+15030 день
Архів дописів
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📚 Data Science Riddle
Why is data versioning(e.g., DVC, LakeFS) essential in ML workflows?
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Instead of starting every project from scratch, use this template to build AI apps with structure and speed
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📚 Data Science Riddle
In A/B testing, why is random assignment of users essential?
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⚡ Parallelism In Databricks ⚡
1️⃣ DEFINITION
Parallelism = running many tasks 🏃♂️🏃♀️ at the same time
(instead of one by one 🐢).
In Databricks (via Apache Spark), data is split into
📦 partitions, and each partition is processed
simultaneously across worker nodes 💻💻💻.
2️⃣ KEY CONCEPTS
🔹 Partition = one chunk of data 📦
🔹 Task = work done on a partition 🛠️
🔹 Stage = group of tasks that run in parallel ⚙️
🔹 Job = complete action (made of stages + tasks) 📊
3️⃣ HOW IT WORKS
✅ Step 1: Dataset ➡️ divided into partitions 📦📦📦
✅ Step 2: Each partition ➡️ assigned to a worker 💻
✅ Step 3: Workers run tasks in parallel ⏩
✅ Step 4: Results ➡️ combined into final output 🎯
4️⃣ EXAMPLES
# Increase parallelism by repartitioning
df = spark.read.csv("/data/huge_file.csv")
df = df.repartition(200) # ⚡ 200 parallel tasks
# Spark DataFrame ops run in parallel by default 🚀
result = df.groupBy("category").count()
# Parallelize small Python objects 📂
rdd = spark.sparkContext.parallelize(range(1000), numSlices=50)
rdd.map(lambda x: x * 2).collect()
# Parallel workflows in Jobs UI ⚡
# Independent tasks = run at the same time.
5️⃣ BEST PRACTICES
⚖️ Balance partitions → not too few, not too many
📉 Avoid data skew → partitions should be even
🗃️ Cache data if reused often
💪 Scale cluster → more workers = more parallelism
====================================================
📌 SUMMARY
Parallelism in Databricks = split data 📦 →
assign tasks 🛠️ → run them at the same time ⏩ →
faster results 🚀
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📚 Data Science Riddle
You train a CNN for image classification but loss stops decreasing early. What's your next step?
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Feature Engineering: The Hidden Skill That Makes or Breaks ML Models
Most people chase better algorithms. Professionals chase better features.
Because no matter how fancy your model is, if the data doesn’t speak the right language. it won’t learn anything meaningful.
🔍 So What Exactly Is Feature Engineering?
It’s not just cleaning data. It’s translating raw, messy reality into something your model can understand.
You’re basically asking:
“How can I represent the real world in numbers, without losing its meaning?”Example: ➖ “Date of birth” → Age (time-based insight) ➖ “Text review” → Sentiment score (emotional signal) ➖ “Price” → log(price) (stabilized distribution) Every transformation teaches your model how to see the world more clearly. ⚙️ Why It Matters More Than the Model You can’t outsmart bad features. A simple linear model trained on smartly engineered data will outperform a deep neural net trained on noise. Kaggle winners know this. They spend 80% of their time creating and refining features not tuning hyperparameters. Why? Because models don’t create intelligence, They extract it from what you feed them. 🧩 The Core Idea: Add Signal, Remove Noise Feature engineering is about sculpting your data so patterns stand out. You do that by: ✔️ Transforming data (scale, encode, log). ✔️ Creating new signals (ratios, lags, interactions). ✔️ Reducing redundancy (drop correlated or useless columns). Every step should make learning easier not prettier. ⚠️ Beware of Data Leakage Here’s the silent trap: using future information when building features. For example, when predicting loan default, if you include “payment status after 90 days,” your model will look brilliant in training and fail in production. Golden rule: 👉 A feature is valid only if it’s available at prediction time. 🧠 Think Like a Domain Expert Anyone can code transformations. But great data scientists understand context. They ask: ❔What actually influences this outcome in real life? ❔How can I capture that influence as a feature? When you merge domain intuition with technical precision, feature engineering becomes your superpower. ⚡️ Final Takeaway The model is the student. The features are the teacher. And no matter how capable the student if the teacher explains things poorly, learning fails.
Feature engineering isn’t preprocessing. It’s the art of teaching your model how to understand the world.
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📚 Data Science Riddle
You have messy CSVs arriving daily. What's your first production step?
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🚀 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
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+3
🤖 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%.
📎 Project page | Arxiv | GitHub
#AI #ML #Research #ASIARCH@datascience_bds
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📚 Data Science Riddle
Your object detection model misses small objects. Easiest fix?
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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
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📚 Data Science Riddle
Model Accuracy improves after dropping half the features. Why?
