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Questions and Answers
What is the primary goal of supervised learning in machine learning?
What is the primary goal of supervised learning in machine learning?
- To learn a mapping between input data and the corresponding output labels (correct)
- To identify outliers in the data
- To reduce the dimensionality of the data
- To discover hidden structures in the data
Which of the following algorithms is commonly used for regression problems in supervised learning?
Which of the following algorithms is commonly used for regression problems in supervised learning?
- Support Vector Machines
- K-Means
- Principal Component Analysis
- Decision Trees (correct)
What is the main characteristic of unsupervised learning algorithms?
What is the main characteristic of unsupervised learning algorithms?
- They are trained on unlabeled data (correct)
- They are used for natural language processing
- They require labeled data to train
- They are used for regression problems
What is the inspiration behind the design of neural networks?
What is the inspiration behind the design of neural networks?
Which of the following is an example of a classification problem in supervised learning?
Which of the following is an example of a classification problem in supervised learning?
What is the primary goal of clustering algorithms in unsupervised learning?
What is the primary goal of clustering algorithms in unsupervised learning?
What type of neural network is particularly well-suited for sequential data?
What type of neural network is particularly well-suited for sequential data?
What is the primary goal of the backpropagation algorithm in deep learning?
What is the primary goal of the backpropagation algorithm in deep learning?
Which NLP task involves determining the emotional tone or attitude conveyed by a piece of text?
Which NLP task involves determining the emotional tone or attitude conveyed by a piece of text?
What is the primary advantage of deep learning over traditional machine learning approaches?
What is the primary advantage of deep learning over traditional machine learning approaches?
What is the name of the technique used in NLP to represent words as vectors in a high-dimensional space?
What is the name of the technique used in NLP to represent words as vectors in a high-dimensional space?
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Study Notes
Machine Learning
Machine learning is a subfield of artificial intelligence that involves training algorithms to learn from data and make predictions or decisions without being explicitly programmed.
Supervised Learning
- Definition: Supervised learning is a type of machine learning where the algorithm is trained on labeled data, meaning the correct output is already known.
- Goal: The goal is to learn a mapping between input data and the corresponding output labels, so the algorithm can make predictions on new, unseen data.
- Types of problems: Classification (e.g. spam vs. not spam emails), Regression (e.g. predicting house prices).
- Algorithms: Linear Regression, Logistic Regression, Decision Trees, Random Forest, Support Vector Machines (SVM).
Unsupervised Learning
- Definition: Unsupervised learning is a type of machine learning where the algorithm is trained on unlabeled data, and it must find patterns or relationships on its own.
- Goal: The goal is to discover hidden structures or relationships in the data, such as grouping similar data points together.
- Types of problems: Clustering (e.g. customer segmentation), Dimensionality Reduction (e.g. PCA), Density Estimation.
- Algorithms: K-Means, Hierarchical Clustering, Principal Component Analysis (PCA), t-SNE.
Neural Networks
- Definition: A neural network is a machine learning model inspired by the structure and function of the human brain.
- Components: Neurons (nodes), Connections (edges), Weights, Bias, Activation Functions.
- Types: Feedforward Networks, Recurrent Neural Networks (RNN), Convolutional Neural Networks (CNN).
- Training: Backpropagation, Gradient Descent, Optimization Algorithms.
Deep Learning
- Definition: Deep learning is a subfield of machine learning that involves the use of neural networks with multiple layers to learn complex patterns in data.
- Characteristics: Automatic feature learning, Hierarchical representations, Ability to learn from large datasets.
- Applications: Image Recognition, Speech Recognition, Natural Language Processing.
Natural Language Processing (NLP)
- Definition: NLP is a subfield of artificial intelligence that deals with the interaction between computers and humans in natural language.
- Tasks: Text Classification, Sentiment Analysis, Language Translation, Question Answering.
- Techniques: Tokenization, Part-of-Speech Tagging, Named Entity Recognition, Dependency Parsing.
- Deep Learning in NLP: Word Embeddings, Recurrent Neural Networks (RNN), Long Short-Term Memory (LSTM) Networks.
Generative AI
- Definition: Generative AI refers to the ability of machines to generate new, original data or content that is similar to a given dataset.
- Types: Generative Adversarial Networks (GAN), Variational Autoencoders (VAE), Generative Adversarial Networks (GAN).
- Applications: Image Generation, Data Augmentation, Style Transfer, Text Generation.
- Challenges: Mode collapse, Unstable training, Evaluation metrics.
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