AI-102 Practice Question: Implement natural language processing solutions
You are building a custom entity extraction solution using Azure AI Language. You have a small dataset (50 documents) with annotated entities. You need to train a model that can extract similar entities from new documents. What is the best approach?
⚠ Common exam trap
Many candidates assume prebuilt APIs or search skills can be adapted to custom entities, but Azure AI Language requires a dedicated custom NER project for training on your own annotated data.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a custom NER project in Azure AI Language and train it with your annotated data.
Azure AI Language's custom NER (Named Entity Recognition) feature allows you to train a model using your own annotated dataset. With 50 documents, you have enough labeled data to fine-tune a custom entity extraction model that learns the specific entity types and patterns in your domain, enabling accurate extraction from new documents.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create a custom NER project in Azure AI Language and train it with your annotated data.
Why this is correct
Custom NER can be trained with small datasets and improved with active learning.
- ✗
Use the prebuilt entity recognition API to extract entities.
Why it's wrong here
Prebuilt entity recognition only extracts common entities, not custom ones.
- ✗
Use the Conversational PII entity extraction feature.
Why it's wrong here
Conversational PII is for personally identifiable information, not custom entities.
- ✗
Use the built-in entity extraction skill in Azure AI Search.
Why it's wrong here
AI Search entity extraction skill is for indexing, not for custom entity extraction.
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