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WithoutBook LIVE Mock Interviews Hugging Face Related interview subjects: 14

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Know the top Hugging Face interview questions and answers for freshers and experienced candidates to prepare for job interviews.

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Know the top Hugging Face interview questions and answers for freshers and experienced candidates to prepare for job interviews.

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Intermediate / 1 to 5 years experienced level questions & answers

Ques 1

What is the difference between fine-tuning and feature extraction in Hugging Face?

Fine-tuning involves updating the model's weights while training it on a new task. Feature extraction keeps the pre-trained model’s weights frozen and only uses the model to extract features from the input data.

Example:

Fine-tuning BERT for sentiment analysis versus using BERT as a feature extractor for downstream tasks like text similarity.
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Ques 2

What are the different types of tokenizers available in Hugging Face?

Hugging Face provides several tokenizers, including BERTTokenizer, GPT2Tokenizer, and SentencePieceTokenizer. Tokenizers convert input text into numerical data that the model can process.

Example:

Using BERTTokenizer for tokenizing a sentence into input IDs: tokenizer = BertTokenizer.from_pretrained('bert-base-uncased')
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Ques 3

How does Hugging Face handle multilingual tasks?

Hugging Face provides multilingual models like mBERT and XLM-R, which are pre-trained on multiple languages and can handle multilingual tasks such as translation or multilingual text classification.

Example:

Using 'bert-base-multilingual-cased' to load a multilingual BERT model.
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Ques 4

What is DistilBERT, and how does it differ from BERT?

DistilBERT is a smaller, faster, and cheaper version of BERT, created using knowledge distillation. It retains 97% of BERT's performance while being 60% faster.

Example:

Using DistilBERT for text classification when computational efficiency is required: from transformers import DistilBertModel
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Ques 5

How do you fine-tune a model using Hugging Face's Trainer API?

The Trainer API simplifies the process of fine-tuning a model. You define your model, dataset, and training arguments, then use the Trainer class to run the training loop.

Example:

trainer = Trainer(model=model, args=training_args, train_dataset=train_dataset)
trainer.train()
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Ques 6

What is the role of datasets in Hugging Face?

Datasets is a Hugging Face library for loading, processing, and sharing datasets in various formats, supporting large-scale data handling for NLP tasks.

Example:

Loading the 'IMDB' dataset for sentiment analysis: from datasets import load_dataset
dataset = load_dataset('imdb')
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Ques 7

What is transfer learning, and how is it used in Hugging Face?

Transfer learning involves using a pre-trained model on a different task. In Hugging Face, you can fine-tune pre-trained models (like BERT) for tasks like classification or NER using transfer learning.

Example:

Fine-tuning BERT on a custom dataset for sentiment analysis.
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Ques 8

How do you use Hugging Face for text generation tasks?

You can use models like GPT-2 for text generation tasks. Simply load the model and tokenizer, and use the 'generate' function to generate text based on an input prompt.

Example:

from transformers import GPT2LMHeadModel, GPT2Tokenizer
model = GPT2LMHeadModel.from_pretrained('gpt2')
output = model.generate(input_ids)
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Ques 9

What is zero-shot classification in Hugging Face?

Zero-shot classification allows models to classify text into categories without having been explicitly trained on those categories. Hugging Face provides models like BART and XLM for zero-shot tasks.

Example:

Using a pipeline for zero-shot classification: classifier = pipeline('zero-shot-classification')
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Ques 10

What are the major differences between BERT and GPT models?

BERT is designed for bidirectional tasks like classification, while GPT is autoregressive and used for generative tasks like text generation. BERT uses masked language modeling, while GPT uses causal language modeling.

Example:

BERT for sentiment analysis (classification) vs GPT for text generation.
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Ques 11

What is the difference between BERT and RoBERTa models?

RoBERTa is an optimized version of BERT that is trained with more data and with dynamic masking. It removes the Next Sentence Prediction (NSP) task and uses larger batch sizes.

Example:

RoBERTa can be used in place of BERT for tasks like question answering for improved performance.
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Ques 12

How does Hugging Face handle data augmentation?

Hugging Face does not provide direct data augmentation tools, but you can use external libraries (like nlpaug) or modify your dataset programmatically to augment text data for better model performance.

Example:

Augmenting text data with synonym replacement or back-translation for NLP tasks.
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Ques 13

How do you handle imbalanced datasets in Hugging Face?

Handling imbalanced datasets can involve techniques like resampling, weighted loss functions, or oversampling of the minority class to prevent bias in model training.

Example:

Using class weights in the loss function to penalize majority class predictions: torch.nn.CrossEntropyLoss(weight=class_weights)
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