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A comment on Apple switches from Bing to Google for Siri web search on iOS and Mac Spotlight. Parent comment

Re:Apple switches from Bing to Google for Siri web search on... by azurezyq on Tuesday September 26, 2017 @01:29AM (#15336428)
DDG has a long way to go on long tail queries.

In search industry, you can probably spend 1x time and resources to reach 90% Google's relevance score. However, to reach 95% or more, you probably need 100x in time and resources.

E.g., NLP in query understanding; Knowledge Graph in webpage understanding; Much larger corpus; Location awareness, etc.

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Re:Apple switches from Bing to Google for Siri web search on... by tesseract on Tuesday September 26, 2017 @01:54AM (#15336509)
For true long tail queries it seems to me that often (speaking only as a Google user, not an expert) the NLP really ends up getting in the way by causing the query to be reinterpreted as something more mainstream. But I agree that it's important for getting high quality results for a lot of common queries. And that quality and relevance scoring of results is also a hard problem.
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