introduction to using Watson Services with Java on Bluemix Patrick - - PowerPoint PPT Presentation

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introduction to using Watson Services with Java on Bluemix Patrick - - PowerPoint PPT Presentation

Sep 07, 2023 332 likes •735 views

introduction to using Watson Services with Java on Bluemix Patrick Mueller @pmuellr , muellerware.org developer advocate for IBM's Bluemix PaaS http://pmuellr.github.io/slides/2015/02-java-intro-with-watson

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introduction to using Watson Services with Java on Bluemix

Patrick Mueller @pmuellr, muellerware.org developer advocate for IBM's Bluemix PaaS

http://pmuellr.github.io/slides/2015/02-java-intro-with-watson http://pmuellr.github.io/slides/2015/02-java-intro-with-watson/java-intro-with-watson.pdf http://pmuellr.github.io/slides/ (all of Patrick's slides) 1 / 39

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agenda

Bluemix intro deploy a sample app code snippets Watson services

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what is Bluemix

Platform-as-a-Service aka PaaS aka web app hosting platform you provide the app, Bluemix hosts the app

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deployment process

you push your application code to Bluemix Bluemix stages your app; finds runtimes, libraries your app uses Bluemix builds a "droplet"; archive of app code, runtimes, libraries Bluemix provisions VM to run the droplet, unpacks droplet, starts it

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references

Bluemix console Bluemix documentation Eclipse tools for Bluemix Bluemix Answers

https://developer.ibm.com/answers/smartspace/bluemix/

  • pen to the public

thousands of questions already asked and answered IBMers: do not ask questions containing sensitive IBM internal information

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articles / movies

Getting Started with IBM Bluemix and DevOps Services using Java Developing IBM Bluemix applications in Java with Eclipse and DevOps Services Work locally with IBM DevOps Services projects and Git source control Video: Develop and manage Java Apps with IBM Bluemix and DevOps Services

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sign up for Bluemix and DevOps Services

for Bluemix, register here (click on SIGN UP): https://bluemix.net for DevOps Services, register here, after registering at Bluemix (click on LOG IN): https://hub.jazz.net/ use the same userid/password as for Bluemix

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sign up for Bluemix and DevOps Services (more)

IBMers: use your IBM email address when registering if you have problems registering, send an email to id@bluemix.net

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supported programming languages

just about anything 1st class support for Java (using Liberty) and node.js community support for PHP, Ruby, Python, others

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supported programming languages - node.js

http://node-stuff.mybluemix.net/how-to lists pre-reqs to install sample app with instructions to deploy yourself Watson User Modeling sample for node.js available here

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supported programming languages - Java

pre-reqs for Java development install Eclipse (Luna) install Bluemix tools for Eclipse install WebSphere Software (in Eclipse Help menu) install cf command-line tool (optional, but you will probably want it)

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supported development environments

command-line; using text editors or IDEs, and the cf command-line tool Eclipse using cf command-line tool, or Bluemix plugin for Eclipse DevOps Services - http://hub.jazz.net; edit, build, deploy all from the web

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Watson User Modeling sample for Java

code / instructions, available here:

https://hub.jazz.net/project/pmuellr/um-java/overview

a live version of this application here: http://watson-um-demo.mybluemix.net/ (show deployment of the app using DevOps Services)

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Watson User Modeling sample for Java

  • using Eclipse

import um-java project using Eclipse git deployment options commit to git, let DevOps Services redeploy to Bluemix deploy directly using Eclipse for Bluemix tools

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  • ther goodies for Bluemix using

Eclipse

incremental publish remote debug

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Java code examples

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using Watson services from Java

bind service to app in Bluemix console use VCAP_SERVICES environment variable to get URL and credentials for service make REST calls to service

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example VCAP_SERVICES

{ "user_modeling": [ { "name": "watson-user-modeling", "label": "user_modeling", "plan": "user_modeling_free_plan", "credentials": { "url": "https://gateway.watsonplatform.net/systemu/service/", "username": "<secret username>", "password": "<secret password>" } } ] }

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parsing VCAP_SERVICES in Java - libraries

com.ibm.websphere.appserver.api.json_1.0.2.jar

available for local usage in um-java sample, in um-

java/lib directory

provided automatically when deploying to Bluemix

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parsing VCAP_SERVICES in Java - code

import com.ibm.json.java.JSONArray; import com.ibm.json.java.JSONObject; JSONObject getVcapServices() { String vcap = System.getenv("VCAP_SERVICES"); if (vcap == null) return null; JSONObject vcapObject = null; try { vcapObject = JSONObject.parse(vcap); } catch (IOException e) { String message = "Error parsing VCAP_SERVICES: "; logger.log(Level.SEVERE, message + e.getMessage(), e); } return vcapObject; }

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getting service credentials from parsed VCAP_SERVICES in Java

// label = "user_modeling"; private void processVCAP_Services(label) { JSONObject sysEnv = getVcapServices(); if (sysEnv == null) return; for (Object labelTest : sysEnv.keySet()) { String labelString = (String) labelTest; if (labelString.startsWith(label)) { JSONArray services = (JSONArray) sysEnv.get(labelTest); JSONObject service = (JSONObject) services.get(0); JSONObject credentials; credentials = (JSONObject) service.get("credentials"); baseURL = (String) credentials.get("url"); username = (String) credentials.get("username"); password = (String) credentials.get("password"); } } }

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accessing a RESTy service in Java - libraries

use Apache HttpComponents for RESTy libraries provided with Bluemix libraries for Eclipse provided automatically when deploying to Bluemix

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issuing REST request in Java

Executor ex = Executor.newInstance().auth(username, password); URI profileURI = new URI(baseURL + "api/v2/profile").normalize(); Request profileRequest = Request.Post(profileURI) .addHeader("Accept", "application/json") .bodyString(content.toString(), ContentType.APPLICATION_JSON); String profileString = ex.execute(profileRequest) .handleResponse(new ResponseHandler<String>() { @Override public String handleResponse(HttpResponse r) throws ClientProtocolException, IOException { int statusCode = r.getStatusLine().getStatusCode(); if (statusCode != HttpStatus.SC_OK) { req.setAttribute("error", handleError(r)); return null; } return EntityUtils.toString(r.getEntity()); } });

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input and output of REST request

in previous example, content was the input, and

profileString was the output, baseURL, username, password came from VCAP_SERVICES

input and output will often be JSON format parse like VCAP_SERVICES example JSON utilities can also be used to generate correctly formatted JSON for input, from Java data structures

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  • verview of Watson

services

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Watson - Concept Expansion

Maps euphemisms or colloquial terms to more commonly understood phrases input: starting point word, a few terms that are examples of that word, and a data set to analyze

  • utput: a ranked list of terms with contextually

similarity to the starting word data sets: periodically updated random tweets, Medical transcript samples from MTSamples

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Watson - Concept Insights

Explores information based on the concepts behind your input input: content and queries, in text and HTML

  • utput: a list of content that is relevant to your queries

dataset: also uses English Wikipedia

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Watson - Language Identification

Identifies the language in which text is written supports: Arabic; Chinese (Simplified); Chinese (Traditional); Cyrillic; Danish;

Dutch; English; Farsi; Finnish; French; German; Greek; Hebrew; Hindi; Icelandic; Italian; Japanese; Korean; Norwegian (Bokmal); Norwegian (Nynorsk); Portuguese; Spanish; Swedish; Turkish; Urdu.

input: text

  • utput: 5-letter ISO language code; eg, "en-US"

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Watson - Machine Translation

Translate text from one language to another supports: English, Brazilian Portuguese, Spanish, French and Arabic input: text to be translated

  • utput: translated text

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Watson - Message Resonance

Communicate with people with a style and words that suits them input: term to evaluate and community to measure against

  • utput: score ranking of how well term will be received

by community communities: "cloud" twitter messages or "big data" twitter messages

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Watson - Question and Answer

Direct responses to user inquiries fueled by primary document sources input: questions and which data set to query

  • utput: multiple answers with confidence scores and

links to evidence data sets: healthcare data (including Healthfinder and CDC Health Topics) or travel data (including Wikivoyage, TSA, and CDC Travel)

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Watson - Relationship Extraction

Intelligently finds relationships between sentence components (nouns, verbs, subjects, objects, etc.) input: text news articles

  • utput: entities from text and relationships in XML

data structure dataset: domain optimized for news articles

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Watson - Speech to Text

Transcribes English speech to text with low latency input: streamed or recorded audio

  • utput: text transcriptions of the recognized words

dataset: intelligible english speech

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Watson - Text to Speech

Synthesizes natural-sounding speech from English or Spanish text input: English or Spanish text

  • utput: synthesized audio based on the input text

dataset: English or Spanish text

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Watson - Tradeoff Analytics

Helps users make better choices to best meet multiple conflicting goals input: decision problem in a JSON document

  • utput: problem and its resolution in a JSON

document dataset: self-contained in input decision problem

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Watson - User Modeling

Improves understanding of people's preferences to help engage users on their own terms input: text from an individual

  • utput: tree of social characteristcs in JSON and

visualizations using HTML and SVG input should be at least 1000 words of text written by

  • ne individual

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Watson - Visual Recognition

Analyzes the visual content of images and video frames to understand the content directly input: JPEG images

  • utput: a set of labels and likelihood scores

dataset: large number of classified pictures

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Watson - more information

Watson Developer Cloud web site

  • ne stop shopping for

getting started information reference documentation app gallery sample code

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fin

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