What is a key challenge in applying Natural Language Processing (NL

Ambiguity and context sensitivity are central challenges in NLP. Words can have multiple meanings depending on their context (polysemy), and disambiguating these meanings is crucial for accurate processing. For example, the word "bank" could refer to a financial institution or a riverbank, depending on its usage. Advanced NLP models like BERT and GPT-3 address this by using context-aware embeddings that capture word relationships within sentences. However, achieving human-level understanding in nuanced scenarios like sarcasm, idioms, or cultural references remains challenging. Such complexities highlight the limitations of current techniques and the importance of contextual analysis in real-world NLP applications. Why Other Options Are Incorrect :

1. Limited vocabulary size : Modern models can handle vast vocabularies through embeddings like Word2Vec or GloVe.
2. Processing large text corpora : Techniques like distributed computing (e.g., Hadoop, Spark) and transformer-based architectures scale well for large datasets.
3. Pre-trained models : Popular models like BERT, RoBERTa, and GPT-3 have made pre-trained resources readily available.
4. Tokenization techniques : NLP offers robust tokenization methods, such as Byte Pair Encoding (BPE) and SentencePiece, to handle text segmentation.