Microsoft Cognitive Services awesome APIs and services for developers to create more intelligent applications. You can add more interesting feature like people emotion and video detection, facial, speech and vision recognition and speech and language understanding into our all the application. The following sample image showing for emotion and face detection using cognitive service.



In this article, you will get understand how to Create a Cognitive Services APIs account in the Azure Portal.

Prerequisites:

Create a free trial Azure subscription from Azure portal.
If you are looking paid version, Click here for detail

Create a Cognitive Services Account in Azure:
You can follow below steps for Create a Cognitive Services APIs account in the Azure Portal.

Step 1: 

Sign in to the Azure portal.

Step 2: 

Click + NEW and Select AI + Cognitive Services

Step 3:

You can see the entire list of Cognitive Services APIs. Click on the API of your choice to proceed.

Step 4: 

Select on required API and read about the API and Click on Create

Step 5: 

after click on create button, provide the following information for create cognitive service and click on create.



Name: Name of the account, Microsoft recommend a descriptive name. for example, <common name><APIName>Account.

Subscription: Select the available Azure subscriptions.

Location: Select the service locations.

Pricing tier: you can choose your pricing tier. F0 is free service and S0 paid service. based on your usage you can choose the pricing tier



Select the Resource group > confirm the Microsoft notice and Click on create for create the account

Step 6: 

wait for few second and you will get notification after complete. If Cognitive Services account is successfully deployed, click the notification to view the account information.

You can see and copy the Endpoint URL in the Overview section.



You can also copy keys in the Keys section to start making API calls in our Xamarin or other applications.

Summary:

In this article, you learned about how to Create a Cognitive Services APIs account in the Azure Portal.

We can use these keys and end point URL to the next article with app to communicate intelligent feature in Xamarin application.

If you have any questions/ feedback/ issues, please write in the comment box.

Create new bot Application:

You can read my previous article for Getting Started with Bots Using Visual Studio 2019 from here

Publish Bot Application to Azure:

You can read my previous articles for publish bot application to azure from here

Generate Web Chat Code:

After publish you bots into azure, you can generate web Chat html code from bots portal as per below

Step 1

Sign in to the Bot framework Portal - https://dev.botframework.com/

Step 2

Click My Bots

Step 3

Select your bot that you want to generate code

Step 4:

Click on Get bot embed Codes > Click on Web Chat icon > Click on (Click here to open Web Chat configuration page)

Step 5:

It will navigate to new web page for configuration and click on + Add New Site > Provide site or application name > Click on Done

Step 6:

You can copy your secret keys and embed code for integrate to xamarin forms application

Create new Xamarin .Forms Application :

Go to Run (Windows key +R) > type Devenv.exe or select from Windows Application list and select New project from File menu > New Project (ctrl +Shift+N) or click More project template from VS Start screen.



New Project >select Cross -Platform from Template > Cross platform App(Xamarin.Forms or native). It will show the screen, as shown below.



You can find above screen only on VS 2017. Select Blank apps > select Xamarin.Forms > Select PCL and click on Ok .it will generate all the mobile platform project with PC



Open your MainPage.xaml file add webview control with following code for web chat enable
<StackLayout WidthRequest="300" HeightRequest="500" >
<Image Source="profile.png" WidthRequest="200" HeightRequest="200"></Image>
<Label Text="Live Chat with Suthahar via C Sharp corner" FontSize="20" ></Label>
<WebView x:Name="webview" Source="https://webchat.botframework.com/embed/DevEnvExeBot?s=8XGcUROXkAA.cwA.pZo.8pJ-6oQ3sJRpxq0tqIo9uLPji4oxBQuz2pW5qWobw2c"
WidthRequest="300" HeightRequest=" 300"></WebView>
</StackLayout>

Now you can run the application in windows ,Android and iOS

Summary

In this article, your learned how to create a Bot application, publish Bot to Azure and bot implementation to Xamarin Forms using Visual Studio 2019. If you have any questions/ feedback/ issues, please write in the comment box.

Navigate to LUIS Portal in a browser and sign in. if you are trying to create first time signing in, you need to create free LUIS account.

Step 2: 

Click on “Create New App” from portal menu options.

Step 3: 

Provide name, culture and description in the following information into the new app screen.

Name - provide the relevant to your application and Unique LUIS app name

Culture – Luis will support multiple language, now we will select as English Language

Description - Provide the Description of app and its optional field



Once completed, Click on Done button and Select “Build” menu from main menu.

Create Intents:

Intent is an action the user wants to perform. Natural language is extremely flexible. in fact, different languages and cultures make them less or more flexible. But what is the user’s "intention?" It’s the goal the user is trying to achieve. Maybe they want to turn the lights on. Maybe they want to schedule a calendar appointment. Maybe they want to Send Email. Whatever the intent may be, the user can express themselves in a multitude of ways, but it always translates to one intent. LUIS understands utterances and converts them to one or more intents that you specify in our LUIS application. There are two type intent

New Intent – you can create custom intent-based user needs

Add prebuild domain Intent - you can use prebuilt intents from one of the prebuilt domains.

Select Intents > Click on New intent or Add prebuilt domain intent 

Prebuilt domain intents are parts of prebuilt domains, you can select inbuild category and intents from the list, here, we will select sending email and send email prebuilt domain intents 

Create Entities:

When the user issues a command as an utterance, that utterance is converted into an intent. But hidden inside that utterance is important data that’s needed to complete the action. For example, "turn the lights off" represents an action called "off;" what entity is it working on? It’s working on lights. You need to extract a single entity out of this utterance.

Select Entities > Add the Prebuild domain entity 

LUIS comes with a number of prebuilt domain models with prebuilt entities. Or you can quite easily create a new custom domain model with custom entities. Here we are creating Prebuilt domain entry 

In order to train the model, you’ll see a Train button on the top right-hand corner


Now you can start publish our LUIS application



While publish application, will be available multiple environment, let we start “Production” environment and publish


after publish its available in publicly the end point URL




Here you can view your publish settings, as well as your LUIS App ID and Password. You will need these to access your LUIS app from your client applications. Please note that you can also type in queries directly to your production endpoint, and you’ll get a JSON response from LUIS

When your model is trained and up-to-date, you can then open the test panel and provide some utterances to your LUIS model



You can copy paste the URL highlighted in key Endpoint setting screen and under the endpoint column (note that the app ID and keys are removed for this image) into an internet browser, and type the query – “Please email to Suthahar”. Below is the full JSON response for the query

Summary

In this article, you learned about how to create Natural Language Understanding app with LUIS .If you have any questions/ feedback/ issues, please write them in the comment box.