¡Las vacaciones!   Regresaste de vacaciones y le escribes un correo a un(a) amigo(a) tuyo(a) para narrarle tu experiencia. Incluye la siguiente información: Un saludo Menciona adónde fuiste de vacaciones. Narra (Narrate) tu experiencia cuando fuiste de vacaciones. Usa el pretérito. Habla de 3 cosas que hiciste durante las vacaciones. Compraste ropa para viajar. Describe dos artículos diferentes que compraste usando los colores y estilos.  Dile a tu amigo(a) qué otras cosas compraste y para quién las compraste. Usa pronombres de objeto directo. (Think souvenirs or gifts you brought back from vacation). Menciona cuánto costó los recuerdos que compraste. Describe dos actividades que hacías de niño(a) cuando ibas de vacaciones. Usa el imperfecto. Una despedida

What does the accuracy metric measure in text classification?

What is a confusion matrix used for in text classification?

In TF-IDF, what does a high inverse document frequency (IDF) score indicate?

Evaluating customer sentiment would be an example of:

Why is stopword removal useful in text mining?

A sentiment analysis on restaurant reviews is not producing meaningful results.  The team notices that words like “was,” “from,” and “what” appear frequently but do not contribute much to the analysis.  What preprocessing step should they consider?

What is a confusion matrix used for in classification tasks?

A financial institution is facing increased cases of credit card fraud.  To mitigate this, they want to build a model that flags transactions as “Fraudulent” or “Not Fraudulent” based on patterns in transaction data – like location, time, and amount.  What machine learning technique should they use?

A human resources department at a multinational corporation is revising its salary structure.  They want to predict employee salaries based on inputs like experience, education, and role to ensure fairness and competitiveness in the market.  What machine learning technique should they use?