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Standing queries

  • The path from IR to text classification:

    • You have an information need to monitor, say:

      • Unrest in the Niger delta region

    • You want to rerun an appropriate query periodically to find new news items on this topic

    • You will be sent new documents that are found

      • I.e., it’s not ranking but classification (relevant vs. not relevant)

  • Such queries are called standing queries

    • Long used by “information professionals”

    • A modern mass instantiation is Google Alerts

  • Standing queries are (hand-written) text classifiers

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