how to use bing spell checker in luis?

[Masssluis]

I am using LUIS and as in the documentation i have enabled spell checker and added the key. i have got the key after registering in cognitive services of bing spell checker. @msftdata @msftgits

[JPThorne]

As I understand it that should be good enough. Have you tried testing it with some misspelled utterances?

[Masssluis]

same issue with me also , i have also done the same , but it does not seems to be working

[JPThorne]

Perhaps worth mentioning - I noticed it only really kicks in on longer utterances. Single misspelled words don't get auto-corrected. But with a longer sentence that contains misspelled words then the auto-correct works.

[alokraj68]

@JPThorne would be great if you could give an example occurrence.

[JPThorne]

@alokraj68

Here's an example of a long utterance with the corrected, altered, query returned by querying the endpoint of our published app with the spellchecker option enabled:

  "alteredQuery": "what is the price of the core income fund"

versus: 
"query": "fundz"```

This is a misspelling of funds. 

[alokraj68]

@JPThorne Can you show me your JSON? because it's still not clear to me. Bing spell checker not working for me until now.

[JPThorne]

Ok well, so the following JSON is what we get when querying our endpoint:

https://westus.api.cognitive.microsoft.com/luis/v2.0/apps/[APP_KEY]?subscription-key=[SUB_KEY]&timezoneOffset=0.0&verbose=true&spellCheck=true&q=waht is the pirce of hte core income funnd

{
  "query": "waht is the pirce of hte core income funnd",
  "alteredQuery": "what is the price of the core income fund",
  "topScoringIntent": {
    "intent": "SelectSomething",
    "score": 0.9951398
  },
  "intents": [
    {
      "intent": "SelectSomething",
      "score": 0.9951398
    },
    {
      "intent": "RequestMoreInfo",
      "score": 0.181434
    },
    {
      "intent": "None",
      "score": 0.0122905066
    },
    {
      "intent": "WantToInvest",
      "score": 0.01046673
    },
    {
      "intent": "NavigateBack",
      "score": 0.005361713
    },
    {
      "intent": "AskAboutFunds",
      "score": 0.00461486634
    },
    {
      "intent": "UserThanks",
      "score": 0.00215001684
    },
    {
      "intent": "BotGuide",
      "score": 0.00154411
    },
    {
      "intent": "AskGeneralInfo",
      "score": 0.00100062718
    },
    {
      "intent": "RequestInvestForms",
      "score": 0.0009928506
    },
    {
      "intent": "LiveAgent",
      "score": 0.0007549511
    },
    {
      "intent": "Help",
      "score": 0.000373806863
    },
    {
      "intent": "UserGreeting",
      "score": 0.000263332739
    },
    {
      "intent": "ChangeUserType",
      "score": 4.443935E-05
    },
    {
      "intent": "RequestGenericApplicationForm",
      "score": 9.46233847E-09
    }
  ],
  "entities": [
    {
      "entity": "core income fund",
      "type": "Funds::Income Fund",
      "startIndex": 25,
      "endIndex": 40,
      "score": 0.9156845
    }
  ]
}

and

https://westus.api.cognitive.microsoft.com/luis/v2.0/apps/[APP_KEY]?subscription-key=[SUB_KEY]&timezoneOffset=0.0&verbose=true&spellCheck=true&q=fundz

{
  "query": "fundz",
  "topScoringIntent": {
    "intent": "AskAboutFunds",
    "score": 0.9760697
  },
  "intents": [
    {
      "intent": "AskAboutFunds",
      "score": 0.9760697
    },
    {
      "intent": "UserGreeting",
      "score": 0.8276377
    },
    {
      "intent": "None",
      "score": 0.105462894
    },
    {
      "intent": "Help",
      "score": 0.09007339
    },
    {
      "intent": "UserThanks",
      "score": 0.08986076
    },
    {
      "intent": "NavigateBack",
      "score": 0.06338278
    },
    {
      "intent": "RequestMoreInfo",
      "score": 0.0197438281
    },
    {
      "intent": "SelectSomething",
      "score": 0.008263543
    },
    {
      "intent": "AskGeneralInfo",
      "score": 0.00778624741
    },
    {
      "intent": "RequestInvestForms",
      "score": 0.00186299626
    },
    {
      "intent": "LiveAgent",
      "score": 0.00126411289
    },
    {
      "intent": "BotGuide",
      "score": 0.000818056869
    },
    {
      "intent": "WantToInvest",
      "score": 0.000526722
    },
    {
      "intent": "ChangeUserType",
      "score": 0.000232829567
    },
    {
      "intent": "RequestGenericApplicationForm",
      "score": 3.6368603E-14
    }
  ],
  "entities": []
}

[alokraj68]

@JPThorne Tried same query and got this

{
  "query": "waht is the pirce of hte core income funnd",
  "topScoringIntent": {
    "intent": "getPredictions",
    "score": 0.9421084
  },
  "intents": [
    {
      "intent": "getPredictions",
      "score": 0.9421084
    },
    {
      "intent": "None",
      "score": 0.07524864
    }
  ],
  "entities": [

  ]
}

Did not get any altered query :(

[JPThorne]

Hmm okay, did you enable spell-check when publishing your app? Did you purchase a Cognitive Services LUIS key in Azure and assign it to your app?

[alokraj68]

@JPThorne Did both, should I enable bing spell checker by adding external key?

[JPThorne]

Yes I think you would need to do that.

[yescay]

The bing spell check API is a different API and in order to utilize it in LUIS intent, the following steps are required.

1. Set up External Key association Get a Bing Spell API key from the cognitive services
2. Add it to the External Key association.
3. In the LUIS intent publishing screen, Select the 'Enable Bing spell checker'
4. When submitting the intent, if there is a spelling mistake, the LUIS intent will return a 'alteredQuery' element in JSON and also the original 'Query'

Trust it helps.

[dileepkantapop]

@JPThorne We had followed all these steps, but facing the issue with the spell checker option in LUIS, As i am checked it and published. When i see again its showing as unchecked. I had purchased Bing spell check key too.

https://github.com/gunthercox/ChatterBot/issues/922#issuecomment-321768404

[rawatsudhir]

Check here and I am sure it will help #51

[ligadata-ibrahim]

any idea how to set a parameter for bing spell check in the LUIS URL?