Re: Is it possible to compare a long text string and fuzzy match only phrases contained in?

From: Tim Clarke <tim(dot)clarke(at)minerva(dot)info>
To: "pgsql-general(at)lists(dot)postgresql(dot)org" <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: Is it possible to compare a long text string and fuzzy match only phrases contained in?
Date: 2021-01-18 11:03:17
Message-ID: 53832cb5-9f05-3a5c-3e00-f9e100dc9e7b@minerva.info
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general


On 17/01/2021 23:09, Benedict Holland wrote:
You want to do NLP in postgres? I would say that you would need a tool like opennlp to get your tokens and phases, then run a fuzzy matching algorithm.

Unless postgres has nlp capabilities but I am not sure I would use them. You actually want something fairly complex.

Thanks,
Ben

On Sun, Jan 17, 2021, 4:55 PM Shaozhong SHI <shishaozhong(at)gmail(dot)com<mailto:shishaozhong(at)gmail(dot)com>> wrote:
We are looking for working examples of comparing a long text string and fuzzy-matching multiple words (namely, phrases) contained in.

Any such work examples?

Regards,

David

We've had excellent results with

https://www.postgresql.org/docs/13/fuzzystrmatch.html

and you may find

https://www.postgresql.org/docs/13/unaccent.html

very useful in this area too

Tim Clarke MBCS
IT Director
Direct: +44 (0)1376 504510 | Mobile: +44 (0)7887 563420

Telephone: Witham: +44(0)1376 503500 | London: +44 (0)20 3009 0853 | Frankfurt: +49 (0)69 7191 6000 | Hong Kong: +852 5803 1687 | Toronto: +1 647 503 2848
Web: https://www.manifest.co.uk/

Minerva Analytics Ltd - A Solactive Company
9 Freebournes Court | Newland Street | Witham | Essex | CM8 2BL | United Kingdom

________________________________

Copyright: This e-mail may contain confidential or legally privileged information. If you are not the named addressee you must not use or disclose such information, instead please report it to admin(at)minerva(dot)info<mailto:admin(at)minerva(dot)info>
Legal: Minerva Analytics is the trading name of: Minerva Analytics Ltd: Registered in England Number 11260966 & The Manifest Voting Agency Ltd: Registered in England Number 2920820 Registered Office at above address. Please Click Here https://www.manifest.co.uk/legal/ for further information.

In response to

Browse pgsql-general by date

  From Date Subject
Next Message Peter J. Holzer 2021-01-18 11:36:21 Re: System (and DB) upgrade problem., "part 2"
Previous Message Tatsuo Ishii 2021-01-18 08:17:05 Re: Code of Conduct plan,Re: Code of Conduct plan