GLOSSARY

Unstructured Information

Unstructured information is data without a fixed format, like text, images, or video. Search engines must process it to make it usable.

What is Unstructured Information?

Unstructured information is data that does not follow a predefined schema or format. Examples include text documents, emails, product reviews, images, audio, and video. Unlike structured data (tables, fields), it requires processing before indexing.

How It Works (quick)

  • Text processing: Tokenization, stemming, semantic analysis.
  • Media processing: OCR for images, ASR for audio, video transcription.
  • Storage: Stored in flexible systems (NoSQL, object storage).
  • Indexing: Converted into searchable features (keywords, embeddings).

Why It Matters in E-commerce

  • Reviews: Free-text customer reviews hold valuable insights.
  • Product content: Vendor descriptions, manuals, and PDFs are often unstructured.
  • Media: Product images and videos need labeling or tagging for discovery.

Best Practices

  • Use NLP/ML to extract meaning.
  • Add metadata and tags for context.
  • Standardize ingestion pipelines.
  • Regularly retrain models for accuracy.

Summary

Unstructured information is raw content without a fixed schema. With processing, it becomes searchable and valuable for e-commerce discovery and analytics.