Evaluation

Measure review effort, not just search speed

A useful evaluation follows the work from question to checked finding. Fast retrieval is only one part of that journey.

Concept illustration of video frames and source review.
Concept illustration; not a product screenshot or historical source.

A search result appears in seconds. That feels impressive. But how long does it take to decide whether the result is useful?

The person doing the work may still need to open the source, inspect a page, listen to a passage, compare versions and write down a conclusion. An evaluation that ends at the results screen misses much of the actual task.

Begin with the existing workflow

Ask a reviewer to complete a representative task using the current process. Note the steps rather than inventing a performance target. Where is time spent? Finding a filename? Opening several files? Establishing whether a passage supports the claim?

Use material and questions the reviewer is permitted to work with. A familiar collection can help expose practical differences, though familiarity should also be recorded when comparing attempts.

Follow the whole journey

For the same kind of task, observe how an assisted workflow moves from question to candidate result, source inspection and recorded finding. Include the effort needed to correct a poor result or investigate a missed item.

A small evaluation may not produce a general performance number. It can still show where the workflow helps and where it creates extra work.

Decide what to record

Useful observations include whether relevant material was found, whether the source reference opened correctly, how much context was needed and which errors required a correction. Capture cases where no supported answer should be given.

  • Was the result relevant to the question?
  • Could the reviewer inspect the original material?
  • Were uncertain findings easy to recognize?
  • Did the reviewer need to repeat or repair a step?
  • What would need to improve before everyday use?

Keep conclusions proportional

One successful task is evidence about that task. It does not establish accuracy across every language, format and recording condition. Likewise, one difficult example may reveal a specific limitation rather than make the entire approach unhelpful.

Write conclusions at the level the evidence supports. “Useful for this kind of interview under these conditions” is a better buying signal than an unsupported claim that a system understands everything.

A VAIMS collection evaluation should help an organization make its next decision with clearer evidence. The goal is practical fit, including the human work required to reach it.

Discuss an evaluation.

KEEP EXPLORING

Another useful perspective.

LET’S EXPLORE IT TOGETHER

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Tell us about your collection and the question you need to answer.