Recommendation

Recommendation API

Recommendation based on customer id, item id and the preference of the customer for a particular Item
Finds similarity based on on Users and Item Similarity which finds similarity based on Items
Implementation using EuclideanDistanceSimilarity and PearsonCorrelationSimilarity Algorithms
This preference file has to be uploaded once which can be a batch process
More the input files more relevant is recommendation
Slope One algorithm implementation for collaborative filtering

People who have used Recommendation have also used :

Load Preference File

	Stream stream = "file stream";  
	App42Callback requestCallback = this; /* This function used the App42Callback interface */
	
	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.BuildRecommenderService(); 

	recommenderService.LoadPreferenceFile(stream,requestCallback);  
	OnSuccess(Object obj)
	{  
		Recommender recommender = (Recommender) obj;  
		App42Response response = (App42Response) recommender;  
		String jsonResponse = response.ToString(); 
	}
	
	public class CallBack : App42Callback
	{
		public override void OnSuccess(Object obj)
		{
		Recommender recommender = (Recommender) obj;
			//Do whatever you want with the object
		}
		public override void OnException(App42Exception e)
		{
			//Do whatever you want with the exception
		}
	}

	InputStream preferenceFileIS = null; /* get inputStream from your source. */  

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.buildRecommenderService();   

	App42Response response = recommenderService.loadPreferenceFile(preferenceFileIS);  
	String jsonResponse = response.toString()

	String preferenceFilePath = "Local file path";  

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.buildRecommenderService(); 

	App42Response response = recommenderService.loadPreferenceFile(preferenceFilePath);  
	String jsonResponse = response.toString()

	NSString *preferenceFilePath = @"Local file path";  

	ServiceAPI *serviceAPIObj = [[ServiceAPI alloc]init];
	serviceAPIObj.apiKey = @"<API_KEY>";
	serviceAPIObj.secretKey = @"<SECRET_KEY>"; 
	RecommenderService *recommenderService = [serviceAPIObj buildRecommenderService];

	App42Response *response =  [recommenderService loadPreferenceFile:fileName preferenceFilePath:filePath description:description] 
	NSString *jsonResponse = [response toString];

	String preferenceFilePath = "Local file path";  

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.buildRecommenderService(); 

	App42Response response = recommenderService.loadPreferenceFile(preferenceFilePath); 
	String jsonResponse = response.toString()

	String preferenceFilePath = "Local file path";  

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.BuildRecommenderService(); 

	App42Response response = recommenderService.LoadPreferenceFile(preferenceFilePath); 
	String jsonResponse = response.ToString()

	preferenceFilePath = "Local file path"; 

	api = App42::ServiceAPI.new("<API_KEY>","<SECRET_KEY>");
	recommenderService = api.buildRecommenderService();    

	recommender = recommenderService.load_preference_file(preferenceFilePath);  
	jsonResponse = recommender.to_s();

The request format for loadPreferenceFile is  
URL : https://api.shephertz.com/cloud/1.0/recommend  
Method : POST  
QueryParam : apiKey=<apiKey>&signature=<signature>&version=<version>×tamp=<UTC_FORMATED_TIME_STAMP>  
Accept : application/json  
Content-Type : application/json

Coming Soon...

	$preferenceFilePath = "Local file path";  
	
	$api = new ServiceAPI("<API_KEY>","<SECRET_KEY>"); 
	$recommenderService = $api->buildRecommenderService();   

	$recommender = $recommenderService-> loadPreferenceFile($preferenceFilePath);  
	$jsonResponse = $recommender->toString();

Item Based

	long userId = 1;  
	int howMany = 1;  
	App42Callback requestCallback = this; /* This function used the App42Callback interface */
	
	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.BuildRecommenderService(); 

	recommenderService.ItemBased(preferenceFileName, userId, howMany,requestCallback); 
	OnSuccess(Object obj)  
	{  
		Recommender recommender = (Recommender) obj;  
		String jsonResponse = recommender.ToString(); 
	} 
	
	public class CallBack : App42Callback
	{
		public override void OnSuccess(Object obj)
		{
		Recommender recommender = (Recommender) obj;
			//Do whatever you want with the object
		}
		public override void OnException(App42Exception e)
		{
			//Do whatever you want with the exception
		}
	}

	long userId = 1;  
	int howMany = 1;

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.buildRecommenderService();   

	Recommender recommender = recommenderService.itemBased(userId, howMany);  
	String jsonResponse = recommender.toString();

	long userId = 1;  
	int howMany = 1;  

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.buildRecommenderService(); 

	Recommender recommender = recommenderService.itemBased(userId, howMany);  
	String jsonResponse = recommender.toString();

	long userId = 1;  
	int howMany = 1;  

	ServiceAPI *serviceAPIObj = [[ServiceAPI alloc]init];
	serviceAPIObj.apiKey = @"<API_KEY>";
	serviceAPIObj.secretKey = @"<SECRET_KEY>"; 
	RecommenderService *recommenderService = [serviceAPIObj buildRecommenderService];

	Recommender *recommender =  [recommenderService itemBased:preferenceFileName userId:userId howMany:howMany]; 
	NSString *jsonResponse = [recommender toString];

	long userId = 1;  
	int howMany = 1;  

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.buildRecommenderService(); 

	Recommender recommender = recommenderService.itemBased(userId, howMany);  
	String jsonResponse = recommender.toString();

	Int64 userId = 1;  
	int howMany = 1;  

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.BuildRecommenderService(); 

	Recommender recommender = recommenderService.ItemBased(userId, howMany);  
	String jsonResponse = recommender.ToString();

	userId = 1;  
	howMany = 1;  

	api = App42::ServiceAPI.new("<API_KEY>","<SECRET_KEY>");
	recommenderService = api.buildRecommenderService();  

	recommender = recommenderService.item_based(userId, howMany); 
	jsonResponse = recommender.to_s();

The request format for itemBased  is  
URL : https://api.shephertz.com/cloud/1.0/recommend/itemBased/{userId}/{howMany}  
Method : GET  
QueryParam : apiKey=<apiKey>&signature=<signature>&version=<version>×tamp=<UTC_FORMATED_TIME_STAMP>  
Accept : application/json  
Content-Type : application/json

Coming Soon...

	$userId = 1;  
	$howMany = 1;  
	
	$api = new ServiceAPI("<API_KEY>","<SECRET_KEY>"); 
	$recommenderService = $api->buildRecommenderService();   

	$recommender = $recommenderService->itemBased($userId, $howMany);  
	$jsonResponse = $recommender->toString();

User Based Threshold For All

	double threshold = 1;  
	int howMany = 3;  
	App42Callback requestCallback = this; /* This function used the App42Callback interface */
	
	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.BuildRecommenderService(); 

	recommenderService.UserBasedThresholdForAll(threshold, howMany,requestCallback);  
	OnSuccess(Objcet obj)
	{  
		Recommender recommender = (Recommender) obj;  
		App42Response response = (App42Response) recommender;  
		String jsonResponse = response.ToString(); 
	}
	
	public class CallBack : App42Callback
	{
		public override void OnSuccess(Object obj)
		{
		Recommender recommender = (Recommender) obj;
			//Do whatever you want with the object
		}
		public override void OnException(App42Exception e)
		{
			//Do whatever you want with the exception
		}
	}

	double threshold = 1;  
	int howMany = 3;

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.buildRecommenderService();   

	Recommender recommender = recommenderService.userBasedThresholdForAll(threshold, howMany);  
	String jsonResponse = recommender.toString();

	double threshold = 1;  
	int howMany = 3;  

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.buildRecommenderService(); 

	Recommender recommender = recommenderService.userBasedThresholdForAll(threshold, howMany); 
	String jsonResponse = recommender.toString();

	double threshold = 1;  
	int howMany = 3;  

	ServiceAPI *serviceAPIObj = [[ServiceAPI alloc]init];
	serviceAPIObj.apiKey = @"<API_KEY>";
	serviceAPIObj.secretKey = @"<SECRET_KEY>"; 
	RecommenderService *recommenderService = [serviceAPIObj buildRecommenderService];

	Recommender *recommender =  [recommenderService userBasedThresholdForAll:threshold howMany:howMany]; 
	NSString *jsonResponse = [recommender toString];

	double threshold = 1;  
	int howMany = 3;  

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.buildRecommenderService(); 

	Recommender recommender = recommenderService.userBasedThresholdForAll(threshold, howMany); 
	String jsonResponse = recommender.toString();

	Double threshold = 1;  
	int howMany = 3;  

	ServiceAPI api = new ServiceAPI("<API_KEY>","<SECRET_KEY>");
	RecommenderService recommenderService = api.BuildRecommenderService(); 

	Recommender recommender = recommenderService.UserBasedThresholdForAll(threshold, howMany); 
	String jsonResponse = recommender.ToString();

	threshold = 1;  
	howMany = 3;   

	api = App42::ServiceAPI.new("<API_KEY>","<SECRET_KEY>");
	recommenderService = api.buildRecommenderService();  

	recommender = recommenderService.user_based_threshold_for_all(threshold, howMany);  
	jsonResponse = recommender.to_s();

The request format for userBasedThresholdForAll  is  
URL : https://api.shephertz.com/cloud/1.0/recommend/userBasedThreshold/all/{threshold}/{howMany}  
Method : GET  
QueryParam : apiKey=<apiKey>&signature=<signature>&version=<version>×tamp=<UTC_FORMATED_TIME_STAMP>  
Accept : application/json  
Content-Type : application/json

Coming Soon...

	$threshold = 1;  
	$howMany = 3;
	
	$api = new ServiceAPI("<API_KEY>","<SECRET_KEY>"); 
	$recommenderService = $api->buildRecommenderService();   

	$recommender = $recommenderService->userBasedThresholdForAll($threshold, $howMany);  
	$jsonResponse = $recommender->toString();

Video

Blogs

300+ App42 Cloud APIs – Backend as a Service (BaaS, MBaaS)
Posted on Sep 13, 2012 by Siddhartha

Writing Custom Code - Your Code, Our Cloud
Posted on Nov 27, 2012 by Ajay Tiwari

Using Query Interface of App42 Storage API
Posted on Nov 5, 2012 by Ajay Tiwari

Quick Links

App42 Platform with AI

API Gateway

Supported SDKs

Tutorials

Samples

Downloads

Blog

Forum

Showcase

Home

Artificial Intelligence

Retail

Banking

Insurance

Gaming

Media

Travel

Recommendation API