Introduction to DeepLearning
• Definition: A subset of Machine Learning
based on artificial neural networks with
representation learning.
• Focus: Learn patterns from large amounts of
data using layered neural networks.
• Inspiration: Mimics the human brain.
Feedforward Neural Networks
(FNN)
•Simplest type of artificial neural network.
• Data flows in one direction (input → output).
• Used for basic prediction tasks.
• Example: Predicting housing prices.
4.
Convolutional Neural Networks
(CNN)
•Designed for image data.
• Uses convolutional layers to extract spatial
features.
• Common in image recognition, computer
vision.
• Example: Handwritten digit recognition
(MNIST).
5.
Recurrent Neural Networks(RNN)
• Designed for sequential data.
• Has feedback connections (can use previous
outputs as inputs).
• Common in NLP and time-series analysis.
• Example: Sentiment analysis, stock
forecasting.
6.
Long Short-Term Memory(LSTM)
• A type of RNN designed to remember long-
term dependencies.
• Avoids vanishing gradient problem.
• Used in language modeling, speech
recognition.
7.
Generative Adversarial Networks
(GAN)
•Consists of a Generator and a Discriminator.
• Generator creates fake data; Discriminator
tries to detect fake vs. real.
• Used in image generation, deepfake creation.
8.
Autoencoders
• Unsupervised neuralnetworks that learn to
compress and reconstruct data.
• Used for noise reduction, dimensionality
reduction.
• Example: Anomaly detection.
9.
Deep Learning Frameworks
•Popular Tools:
• - TensorFlow
• - PyTorch
• - Keras
• - MXNet
• Provide APIs and utilities to build, train and
deploy DL models.
10.
Applications of DeepLearning
• 1. Computer Vision: Image classification, face
recognition
• 2. Natural Language Processing: Translation,
chatbots
• 3. Healthcare: Disease detection from scans
• 4. Autonomous Vehicles: Object detection,
path planning
11.
Steps to ApplyDeep Learning
• 1. Define problem & gather data
• 2. Preprocess and split data
• 3. Choose model architecture
• 4. Train the model
• 5. Evaluate performance
• 6. Deploy and monitor
12.
Summary of DeepLearning
Algorithms
• Algorithm | Purpose | Application
• CNN | Spatial data | Image recognition
• RNN/LSTM | Sequence data | Language
models
• GAN | Data generation | Art, deepfakes
• Autoencoders | Feature learning | Anomaly
detection
13.
Final Thoughts
• Deeplearning excels with large data.
• Choose the right model for the task.
• Understand limitations: interpretability,
compute requirements.