Botframework v4:确认提示中的字符串"No"在 luis.ai 中被识别为取消



您好,当我提示用确认提示或否提示的用户提示用户时。路易斯(Luis)检测到"否"为取消意图,这取消了我的整个对话框。然后,我从取消意图中删除了"否",但现在"否被路易斯被发现为问候。因为用户可以随时取消。我该如何解决?谢谢!

这是代码。

       public async Task OnTurnAsync(ITurnContext turnContext, CancellationToken cancellationToken)
    {
        var dc = await _dialogs.CreateContextAsync(turnContext, cancellationToken);
        var activity = turnContext.Activity;
        var userstate = await _basicAccessors.BasicUserStateAccessor.GetAsync(turnContext, () => new BasicUserState(), cancellationToken);
        var state = await _basicAccessors.BasicStateAccessor.GetAsync(turnContext, () => new BasicState(), cancellationToken);
        if (turnContext.Activity.Type == ActivityTypes.Message)
        {
            turnContext.TurnState.Add("BasicAccessors", _basicAccessors);
            string text = string.IsNullOrEmpty(turnContext.Activity.Text) ? string.Empty : turnContext.Activity.Text.ToLower();
            var luisResults = await _services.LuisServices[LuisConfiguration].RecognizeAsync(dc.Context, cancellationToken);
            var topScoringIntent = luisResults?.GetTopScoringIntent();
            var topIntent = topScoringIntent.Value.intent;
            string userName = string.Empty;
            if (activity.From.Name != null)
            {
                userName = activity.From.Name;
            }
            userstate.Name = userName;
            await _basicAccessors.BasicUserStateAccessor.SetAsync(turnContext, userstate);
            await _basicAccessors.BasicStateAccessor.SetAsync(turnContext, state);
            var interrupted = await IsTurnInterruptedAsync(dc, topIntent);
            if (interrupted)
            {
                // Bypass the dialog.
                // Save state before the next turn.
                await _basicAccessors.ConversationState.SaveChangesAsync(turnContext, false, cancellationToken);
                await _basicAccessors.UserState.SaveChangesAsync(turnContext, false, cancellationToken);
                return;
            }
            // Continue the current dialog
            var dialogResult = await dc.ContinueDialogAsync();
            // if no one has responded,
            if (!dc.Context.Responded)
            {
                // examine results from active dialog
                switch (dialogResult.Status)
                {
                    case DialogTurnStatus.Empty:
                        switch (topIntent)
                        {
                            case GreetingIntent:
                                await dc.BeginDialogAsync(MainDialogId);
                                break;
                            case "loan calculator":
                            case "loan calc":
                                await dc.BeginDialogAsync(MainDialogId);
                                break;
                            case NoneIntent:
                            default:
                                await dc.Context.SendActivityAsync("I didn't understand what you just said to me.");
                                break;
                        }
                        break;
                    case DialogTurnStatus.Waiting:
                        // The active dialog is waiting for a response from the user, so do nothing.
                        break;
                    case DialogTurnStatus.Complete:
                        await dc.EndDialogAsync();
                        break;
                    default:
                        await dc.CancelAllDialogsAsync();
                        break;
                }
            }
        }
        else if (activity.Type == ActivityTypes.ConversationUpdate)
        {
            if (activity.MembersAdded != null)
            {
                // Iterate over all new members added to the conversation.
                foreach (var member in activity.MembersAdded)
                {
                    // Greet anyone that was not the target (recipient) of this message.
                    // To learn more about Adaptive Cards, see https://aka.ms/msbot-adaptivecards for more details.
                    if (member.Id != activity.Recipient.Id)
                    {
                        await SendWelcomeMessageAsync(turnContext, cancellationToken);
                    }
                }
            }
        }
        await _basicAccessors.ConversationState.SaveChangesAsync(turnContext, false, cancellationToken);
        await _basicAccessors.UserState.SaveChangesAsync(turnContext, false, cancellationToken);
    }
 private async Task<bool> IsTurnInterruptedAsync(DialogContext dc, string topIntent)
    {
        // See if there are any conversation interrupts we need to handle.
        if (topIntent.Equals(CancelIntent))
        {
            if (dc.ActiveDialog != null)
            {
                await dc.CancelAllDialogsAsync();
                await dc.Context.SendActivityAsync("Ok. I've canceled our last activity.");
            }
            else
            {
                await dc.Context.SendActivityAsync("I don't have anything to cancel.");
            }
            return true;        // Handled the interrupt.
        }
        if (topIntent.Equals(HelpIntent))
        {
            await dc.Context.SendActivityAsync("Let me try to provide some help.");
            await dc.Context.SendActivityAsync("I understand greetings, being asked for help, or being asked to cancel what I am doing.");
            if (dc.ActiveDialog != null)
            {
                await dc.RepromptDialogAsync();
            }
            return true;        // Handled the interrupt.
        }

这似乎是一个设计困境。我的建议是重新安排您的机器人的优先级,以便如果您的对话未正确响应,则仅调用Luis 。这可以通过将IsTurnInterruptedAsyncOnTurnAsync移至验证器方法来实现。可以将验证器方法作为参数传递给您提示的构造函数:

_dialogs.Add(new ConfirmPrompt(CONFIRMPROMPT, ValidateAsync));

,如果您的提示在其他类别中,则可以确保可以从任何地方访问最高意图。您可以通过在转弯状态中添加顶部意图来做到这一点,这是仅持续到单个转弯范围的状态。将此代码包括在OnTurnAsync中:

var topScoringIntent = luisResults?.GetTopScoringIntent();
var topIntent = topScoringIntent.Value.intent;
// Include this:
turnContext.TurnState.Add("topIntent", topIntent);

您的ValidateAsync方法看起来像这样:

private async Task<bool> ValidateAsync(PromptValidatorContext<bool> promptContext, CancellationToken cancellationToken)
{
    if (promptContext.Recognized.Succeeded)
    {
        return true;
    }
    await IsTurnInterruptedAsync(promptContext.Context);
    return false;
}

由于IsTurnInterruptedAsync现在可能在另一个类中,因此需要通过您的转弯状态访问顶部意图。如果_dialogs不在范围内,您也可以将其添加到轮回状态,或者将其作为公共/静态属性。

private async Task<bool> IsTurnInterruptedAsync(ITurnContext turnContext)
{
    var dc = await _dialogs.CreateContextAsync(turnContext);
    var topIntent = turnContext.TurnState.Get<string>("topIntent");
    // See if there are any conversation interrupts we need to handle.
    if (topIntent.Equals(CancelIntent))
    {
        // . . .

以这种方式,只有当话语对对话框无效时,才会发生中断。

即使说话对对话框有效,您可能要允许中断。当然,对于文本提示来说,任何有效的东西都是有效的,但是您仍然不想允许用户键入"我该怎么办?"作为他们的名字。如果您想先将话语发送到Luis进行某些类型的对话框,然后将话语发送到对话框中以获取其他类型的对话框,则可以检查堆栈顶部的对话框的类型:

var activeDialog = _dialogs.Find(dc.ActiveDialog.Id);
if (activeDialog is ConfirmPrompt || activeDialog is ChoicePrompt)

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