Artificial Intelligence (AI) Interview Questions and Answers
Ques 36. What are GPT models, and how do they work?
GPT (Generative Pre-trained Transformer) models are transformer-based language models trained on massive amounts of text data. They generate coherent and contextually relevant text based on input prompts.
Example:
Using GPT-3 to generate human-like text responses given a prompt or question.
Ques 37. What is the role of activation functions in the output layer of a neural network?
The activation function in the output layer depends on the task. For binary classification, the sigmoid function is commonly used, while softmax is used for multi-class classification. Regression tasks may use linear activation.
Example:
Applying the softmax function to the output layer for classifying multiple categories in an image.
Ques 38. How does the Long Short-Term Memory (LSTM) architecture address the vanishing gradient problem in recurrent neural networks?
LSTM introduces a memory cell with input, output, and forget gates, allowing the model to selectively remember or forget information. This helps LSTMs capture long-term dependencies in sequential data, addressing the vanishing gradient problem.
Example:
Using LSTM for time-series prediction where long-term dependencies are crucial.
Ques 39. What is the curse of dimensionality, and how does it affect machine learning models?
The curse of dimensionality refers to the challenges and sparsity that arise when dealing with high-dimensional data. As the number of features increases, the amount of data needed to effectively cover the feature space grows exponentially.
Example:
In high-dimensional data, models may require an impractical amount of data to generalize well.
Ques 40. What are some challenges associated with deploying machine learning models in real-world applications?
Deploying machine learning models involves challenges such as model interpretability, scalability, maintaining model performance over time, and addressing ethical considerations.
Example:
Ensuring a computer vision model performs well in various lighting conditions and diverse environments when deployed in an autonomous vehicle.
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