fforbeck

Interest of users

Portuguese version

Motivation

For companies that work with online advertising, more precisely DSPs and their Real-time Bidding platforms is very important to consider collecting information about the behavior and interests of users while they surfing on the internet. Therefore, in this graph gist, I describe a basic approach that can be used to analyze such data, considering a certain period of time and the products visualized by each user. Let’s consider some characters from Breaking Bad surfed on the internet a few days ago and found some products interesting, chemical elements, and they are thinking about buying them. Such information is extremely important when making a bid at auction advertising, knowing the profile and interests of a given user. Then we store these users, products and dates of views so we can extract this information in the future.

fforbeck

You need to format the EBS volume (block device) with a file system between step 1 and step 2. So the entire process with your sample mount point is:

Create EBS volume.

Attach EBS volume to /dev/sdf (EC2's external name for this particular device number).

Format file system /dev/xvdf (Ubuntu's internal name for this particular device number):

sudo mkfs.ext4 /dev/xvdf
Mount file system (with update to /etc/fstab so it stays mounted on reboot):

fforbeck

sudo mkdir -p /Library/Internet\ Plug-Ins/disabled 
sudo mv /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin /Library/Internet\ Plug-Ins/disabled
sudo ln -sf /System/Library/Java/Support/Deploy.bundle/Contents/Resources/JavaPlugin2_NPAPI.plugin /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin 
sudo ln -sf /System/Library/Frameworks/JavaVM.framework/Commands/javaws /usr/bin/javaws

fforbeck

sudo apt-get install python-software-properties
sudo add-apt-repository ppa:git-core/ppa
sudo apt-get update
sudo apt-get install git

fforbeck

$ sudo apt-get purge openjdk*
$ sudo add-apt-repository ppa:webupd8team/java
$ sudo apt-get update

Install Java 8:

$ sudo apt-get install oracle-java8-installer

Or, install Java 7:

fforbeck

public class ListaDuplamenteEncadeada {
	
	private Pessoa primeiraPessoa;
	
	private Pessoa ultimaPessoa;
	
	private int totalPessoas;
	
	public void insereInicio(Pessoa novaPessoa) {
		

fforbeck

0. Installing - http://www.apache.org/dyn/closer.cgi/lucene/solr/4.3.0

1. Setup your fields types in solr/collections/conf/schema.xml

2. POST JSON - 
curl http://localhost:8983/solr/update/json?commit=true --data-binary @file-name.json -H 'Content-type:application/json'

3. CLEAR DATABASE
curl http://localhost:8983/solr/update?commit=true -H "Content-Type: text/xml" --data-binary '<delete><query>*:*</query></delete>'

fforbeck

import java.io.IOException;
import java.util.List;

import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.SolrServer;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.impl.HttpSolrServer;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrInputDocument;

fforbeck

redis> SET key "value"
OK
redis> EXPIRE key 15
(integer) 1
redis> TTL key
(integer) 10
redis> TTL key
(integer) 9
redis> TTL key
(integer) 8

fforbeck

StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
t.printStackTrace(pw);
sw.toString();