Wiki Article · Cinematic

Keras

Keras ek open-source, high-level deep learning API hai jo Python me likhi gayi hai aur originally…

Overview

Keras — Quick Facts

📌

Property: Detail

🎯

Full Name: Keras

⚡

Type: Deep Learning API / High-Level…

🔑

Original Author: François Chollet

Topic 1

Infobox

📚 | Property | Detail | |---|---| | Full Name | Keras | | Type | Deep Learning API /…

Topic 2

History aur Evolution

💡

Theano Era (2015–2017): Keras…

🔑

TensorFlow Integration…

⚡

TF2 Merger (2019): Standalone…

🎯

Multi-Backend Era (2023+): Keras…

Topic 3

Core Philosophy — Design Principles

💡

Consistent aur simple APIs

🔑

Minimum user actions for common…

⚡

Clear aur actionable error messages

🎯

Extensive documentation aur…

Topic 4

Architecture Overview

⭐ Keras ek layered architecture follow karta hai: `…

Topic 5

Backend System — Multi-Backend Support

💡

Theano (default initially,…

🔑

TensorFlow (became dominant)

⚡

CNTK (Microsoft, discontinued…

🎯

TensorFlow — Google ka framework,…

Topic 6

Keras 3.0 — Multi-Backend Revolution

💡

Framework-agnostic: Same Keras…

🔑

keras.ops module: NumPy-compatible…

⚡

No more tf.keras: Standalone keras…

🎯

JAX-first optimizations: Stateless…

Topic 7

Model Building APIs — 3 Approaches

🌟 Keras 3 tarah se models banane deta hai — simple se complex tak: 1. Sequential API…

Topic 8

Layers — Building Blocks

💡

Input tensor leta hai

🔑

Computation perform karta hai…

⚡

Output tensor return karta hai

🎯

build(input_shape): Weights create…

Topic 9

Common Layer Types

📚 | Category | Layer | Purpose | Typical Use Case | |---|---|---|---| | Core | Dense |…

Topic 10

Training Workflow

💡 Keras me model training ek structured workflow follow karta hai: Standard Training Loop…

Topic 11

Loss Functions aur Optimizers

🎯 Common Loss Functions | Loss Function | Use Case | Output Activation | |---|---|---| |…

Topic 12

Callbacks — Training Lifecycle Hooks

💡

on_train_begin() / on_train_end()

🔑

on_epoch_begin() / on_epoch_end()

⚡

on_batch_begin() / on_batch_end()

🎯

on_test_begin() / on_test_end()

Topic 13

Data Pipeline — Preprocessing aur Augmentation

💡

keras.utils.image_dataset_from_dire…

🔑

keras.utils.text_dataset_from_direc…

⚡

keras.utils.timeseries_dataset_from…

🎯

TensorFlow tf.data: Advanced…

Topic 14

Transfer Learning aur Pre-trained Models

✨ Transfer learning Keras ka ek major strength hai: Transfer Learning Concept 1.…

Topic 15

Keras Applications — Pre-trained Model Zoo

💡

ResNet (50, 101, 152, V2 variants)

🔑

EfficientNet (B0–B7, V2-S/M/L)

⚡

MobileNet (V1, V2, V3-Small/Large)

🎯

DenseNet (121, 169, 201)

Topic 16

Custom Components — Extensibility

💡

keras.Layer inherit karo

🔑

build() me weights create karo

⚡

call() me forward logic likho

🎯

get_config() me serialization…

Topic 17

Keras vs PyTorch vs TensorFlow — Comparison

📚 | Dimension | Keras 3.x | PyTorch | TensorFlow (low-level) | |---|---|---|---| |…

Topic 18

Keras Ecosystem aur Extensions

💡 | Project | Description | Status | |---|---|---| | KerasCV | Computer vision models +…

Topic 19

Performance aur Optimization

💡

Mixed Precision Training:…

🔑

XLA Compilation: JAX backend…

⚡

Data Pipeline: Prefetching,…

🎯

Distributed Training: Multi-GPU,…

Topic 20

Deployment Options

💡

.keras (recommended): Keras 3…

🔑

SavedModel (TF): TensorFlow…

⚡

.h5 (legacy): HDF5 format —…

🎯

ONNX: Cross-framework…

Topic 21

Keras in Production — Real-World Use Cases

💡

Google: YouTube recommendations,…

🔑

NASA: Mars rover image analysis

⚡

CERN: Particle physics event…

🎯

Netflix: Content recommendation

Topic 22

Common Neural Network Architectures with Keras

✨ | Architecture | Type | Key Innovation | Typical Keras Implementation | |---|---|---|---|…

Topic 23

Keras Model Lifecycle — Mermaid Diagram

🌟 `mermaid flowchart TD A[Problem Definition] --> B[Data Collection<br/>& Preprocessing] B…

Topic 24

Keras Architecture — Mermaid Diagram

🚀 `mermaid flowchart TB subgraph UserCode["User Application"] UC[Model Definition +…

Topic 25

Best Practices

💡

Start simple: Pehle simple model…

🔑

Functional API prefer karo:…

⚡

Preprocessing model ke andar…

🎯

Mixed precision use karo: Modern…

Topic 26

Common Pitfalls aur Solutions

💡 | Pitfall | Problem | Solution | |---|---|---| | Forgetting to compile | model.fit()…

Topic 27

Community aur Resources

💡

keras.io — Official documentation,…

🔑

keras.io/examples — 200+ code…

⚡

keras.io/api — Complete API…

🎯

github.com/keras-team/keras —…

Topic 28

Disclaimer

⭐ Ye article Aliens Wiki ke liye Hinglish (Roman) me likha gaya hai. Ye ek educational…

Comparison

Keras vs PyTorch vs TensorFlow — Comparison

⚖️

Abstraction Level: Very High

⚖️

Learning Curve: Easy

⚖️

API Style: Declarative + Imperative

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Keras ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

Keras ka 'Full Name' kya hai?

Complete! 🎉

Keras Complete!

Aliens Wiki · HIEN · Cinematic Knowledge

✅

Keras Complete

➡️