根据QnAMaker中的输入对结果进行排名

时间:2018-08-14 08:19:53

标签: c# botframework azure-cognitive-services qnamaker

使用Bot Framework SDK v-3,我能够根据关键字(如建议的操作/卡片)获得匹配问题的列表,例如 Suggested actions cards in QnAMaker Dialog

image

现在,我正在使用包含中间件概念的预发行版SDK v-4。所以我在Startup.cs-

中做了类似的事情
services.AddBot<QnABot>(options =>
            {
                options.CredentialProvider = new ConfigurationCredentialProvider(Configuration);

                var endpoint = new QnAMakerEndpoint
                {
                    KnowledgeBaseId = kbId,
                    // Get the Host from the HTTP request example at https://www.qnamaker.ai
                    // For GA services: https://<Service-Name>.azurewebsites.net/qnamaker
                    // For Preview services: https://westus.api.cognitive.microsoft.com/qnamaker/v2.0           
                    Host = hostURL,
                    EndpointKey = endpointKey
                };
                var qnaOptions = new QnAMakerMiddlewareOptions();
                qnaOptions.Top = 5;
            options.Middleware.Add(new QnAMakerMiddleware(endpoint, qnaOptions));
            });

我只获得第一个匹配问题的答案作为聊天窗口中的输出,而没有获得匹配问题作为建议的动作卡,供用户选择。我曾经有一个单独的对话框,该对话框是从SDK v-3中的QnAMakerDialog继承而来的,它具有重写的功能来管理我的对话流。我不确定现在如何在中间件中进行管理,因为我从文档中得到的仅仅是-QnAMaker with bot framework SDK v-4 请帮忙吗?

1 个答案:

答案 0 :(得分:0)

我在这个github问题中发现了相同的问题:"Ability to get ranked results based on the input does not work",并且正如JonathanFingold所建议的,我们可以在bot代码中使用QnA maker服务,然后根据匹配的问题数向用户发送不同的响应活动从QnA制造商服务返回。

此外,如果您希望像在Bot Framework SDK v3中那样做出显示的几个选择,则可以动态生成英雄卡以显示建议的选项。您可以参考以下示例代码,使用英雄卡显示建议的选项。

var results = await QnA.GetAnswers(text);

switch (results.Length)
{
    case 0:
        await context.SendActivity($"I have no topics in the FAQ for '{text}'.");
        await context.SendActivity("Ask me a question.");
        break;
    case 1:
        await context.SendActivity(results[0].Answer);
        break;
default:

        //var options = MessageFactory.SuggestedActions(
        //    results.Select(r => r.Questions[0]).ToList(), "Did you mean:");
        //options.SuggestedActions.Actions.Add(None);


        //show options using HeroCard
        var options = results.Select(r => r.Questions[0]).ToList();

        var herocard = new HeroCard();
        herocard.Text = "Did you mean:";

        List<CardAction> buttons = new List<CardAction>();

        foreach (var item in options)
        {
            buttons.Add(new CardAction()
            {
                Type = ActionTypes.ImBack,
                Title = item.ToString(),
                Value = item.ToString()
            });
        }

        buttons.Add(new CardAction()
        {
            Type = ActionTypes.ImBack,
            Title = "None of the above.",
            Value = "None of the above."
        });

        herocard.Buttons = buttons;

        var response = context.Activity.CreateReply();
        response.Attachments = new List<Attachment>() { herocard.ToAttachment() };
        await context.SendActivity(response);
        break;
}

测试结果:

enter image description here