路易斯在两个意图之间做出选择

Question

如果对话的 luis 最高意图分数是 0.15，第二个是 0.14，机器人是否可以询问用户他们是指第一个意图还是第二个意图？如果是，该怎么做？我一直在搜索文档示例，但似乎没有任何解决方案，只能发出越来越多的话语，所以这不会发生；对吗？

Answer 1

If the luis highest intent score for a conversation is 0.15, and the second is 0.14, would it be possible for the bot to ask the user if they meant the first intent or the second intent? If yes how to do so?

是的，我们可以达到这个要求。下面的示例代码对我有用，你可以参考一下。

[Serializable]
public class MyLuisDialog : LuisDialog<object>
{
    public MyLuisDialog() : base(new LuisService(new LuisModelAttribute("xxxxxxx", 
        "xxxxxxx", 
        domain: "westus.api.cognitive.microsoft.com")))
    {
    }


    //modify Luis request to make it return all intents instead of just the topscoring intent
    protected override LuisRequest ModifyLuisRequest(LuisRequest request)
    {
        request.Verbose = true;
        return request;
    }

    protected override async Task DispatchToIntentHandler(IDialogContext context, IAwaitable<IMessageActivity> item, IntentRecommendation bestIntent, LuisResult result)
    {

        if (bestIntent.Intent == "FindFood" || bestIntent.Intent == "BuyFood")
        {
            if (result.Intents[0].Score - result.Intents[1].Score < 0.1)
            {
                bestIntent.Intent = "FindOrBuyFood";
                bestIntent.Score = 1;
            }
        }

        await base.DispatchToIntentHandler(context, item, bestIntent, result);
    }

    [LuisIntent("Greeting")]
    public async Task GreetingIntent(IDialogContext context, LuisResult result)
    {
        await this.ShowLuisResult(context, result);
    }

    //...
    //other intent handlers
    //...

    [LuisIntent("FindFood")]
    [LuisIntent("BuyFood")]
    public async Task FoodIntent(IDialogContext context, LuisResult result)
    {
        await this.ShowLuisResult(context, result);
    }

    [LuisIntent("FindOrBuyFood")]
    public async Task FindOrBuyFoodIntent(IDialogContext context, LuisResult result)
    {
        var food = "food";

        if (result.Entities.Count() > 0)
        {
            food = result.Entities[0].Entity;
        }

        List<string> options = new List<string>() { $"Find {food}", $"Buy {food}" };

        PromptDialog.Choice(
            context: context,
            resume: ChoiceReceivedAsync,
            options: options,
            prompt: "Hi. Please Select one option :",
            retry: "Please try again.",
            promptStyle: PromptStyle.Auto
            );
    }

    private async Task ChoiceReceivedAsync(IDialogContext context, IAwaitable<object> result)
    {
        var option = await result;

        //your code logic here

        await context.PostAsync($"You selected the '{option}'");

        context.Wait(MessageReceived);
    }

    private async Task ShowLuisResult(IDialogContext context, LuisResult result)
    {
        await context.PostAsync($"You have reached {result.Intents[0].Intent} intent.");
        context.Wait(MessageReceived);
    }
}

测试结果：

路易斯在两个意图之间做出选择

Luis choosing between two intent

c#

microsoft-cognitive

botframework

azure-language-understanding