Create Swift mobile apps with IBM Watson services IBM Corporation

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1 Create Swift mobile apps with IBM Watson services

2 Create a Watson sentiment analysis app with Swift

3 Learning objectives In this section, you ll learn how to write a mobile app in Swift for ios and add an IBM Watson cognitive service from Bluemix to that app. More specifically, you ll learn how to: Create a Single View Application in Swift Create a graphical user interface (GUI) for ios Add the IBM Watson ios SDK to our project Create a Watson service and get the key token for it Run the app to access the Watson service and display the output on your smartphone 3

4 Prerequisites Before your start this section, you should install and configure the following prerequisites: A MacBook running OS X El Capitan The Xcode 7.3 development environment or later A Bluemix account Familiarize yourself with the Watson Developer Cloud ios SDK, which you will use in the labs: 4

5 Sentiment analysis Watson AlchemyAPI cognitive service can: Identify attitude, opinions, or feelings in the content that is being analyzed Calculate overall sentiment in a document, sentiment for user-specified targets, entity-level sentiment, quotation-level sentiment, directionalsentiment, and keyword-level sentiment The combination of these capabilities supports a variety of use cases ranging from social media monitoring to trend analysis. The app that you build in this section will help you determine the sentiment of a person s textual input. 5

6 Mobile application layers ios app Watson Developer Cloud SDK for ios Watson service: AlchemyAPI Function: sentiment analysis

7 Create an Watson photo recognition app with Swift

8 Learning objectives In this section, you ll learn how to create a mobile image recognition app for ios. The app can consume an image URL and provide information about what the image contains. This is a very popular type of mobile app. You'll learn how to: Create a Single View Application in Swift Create a graphical user interface (GUI) for ios Add the Bluemix IBM Watson ios SDK to your project Create a Watson Visual Recognition service instance and get the key token for it Run the app to access the Watson service and display the output on our smartphone 8

9 Prerequisites Be sure that you complete the previous lab Create a Watson sentiment analysis app with Swift. 9

10 Visual recognition The Watson Visual Recognition service can: Understand the content of images or video frame, answering the question What is in this image? Create custom classifiers to develop smart applications Help you understand the contents of an image 10

11 How the app works For this app, you submit an image, and the service returns scores for relevant classifiers representing things such as people, objects, events, and settings. Check out the Visual Recognition demo at 11

12 Create a Watson text-to-speech app with Swift

13 Learning objectives In this section, you ll learn how to write a mobile app in Swift for ios and add the IBM Watson Text to Speech service from Bluemix. More specifically, you'll learn how to: Create a Single View Application in Swift Create a graphical user interface (GUI) for ios Add the IBM Watson ios SDK to your project Create the Watson Text to Speech service and get the key token for it 13

14 Prerequisites Complete the previous labs: Create a Watson sentiment analysis app with Swift Create an Watson photo recognition app with Swift 14

15 Watson Text to Speech service The Watson Text to Speech service is designed for streaming low-latency synthesis of audio from written text. The Watson Text to Speech service provides a REST API to synthesize speech audio from an input of plain text. After the text is analyzed in real-time, the audio is streamed back to the client. The service synthesizes natural-sounding speech from input text in a variety of languages and voices that speak with appropriate cadence and intonation. Multiple voices, both male and female, are available in these languages: Brazilian Portuguese, English, French, German, Italian, Japanese, and Spanish. You can also control the pronunciation of specific words. 15

16 How the app works Enter text on your smartphone and listen to the voice output. Check out the demo at 16

Enhancing applications with Cognitive APIs IBM Corporation

Enhancing applications with Cognitive APIs After you complete this section, you should understand: The Watson Developer Cloud offerings and APIs The benefits of commonly used Cognitive services 2 Watson