 Well, let's start. I'm Jordi, from Barcelona, and I will talk about Neo4j. Sorry for my English, I'm not used to talk a lot, but I will do my best. So, I started working in Neo4j about six months ago. I was just doing an investigation for doing something new, because I'm not a developer. Excuse me, I'm a system administrator. All my work on computer is system administration, so I can give you a lot of answers about the topic. So, I will try to explain what I discovered about Neo4j and so on. Well, this is the manner you can save documents. It started with text documents in the 90s before. This is the evolution of how people started doing things. Well, it's an evolution that we had. After everything else, I discovered that everything was going to Neo4j, or GraphDV. GraphDV utilitza la teoria de la teoria de les gràfies. I, for storing the data. Instead of doing the typical relational database, using the tip scammers and columns and registers, it uses a graph to store all the information. And it works like this. Everything is with nodes instead of typical columns. Every node has its own relationships within them. And the nodes works as the registers. So, they are all relationships and you can have every node has its own registers. You can sync all the registers to the nodes and you can put relations between the registers. And for this, you have very speed and performance, everything. Well, this is a typical query working with Java. It's very simple to call and to make a node and to do a relationship between them. So, it works like this. I can't explain anything else because I'm not a developer. It's just a theory I see. So, this can be used for everything, almost. You can save social data for everybody and you can spend it to anything. You can put relationships between all the nodes and you can query everything. You can also add special data so you can have the geological information about all the nodes. In Neo4j, there is a function for doing special data. So, you can mix it with Google Maps or another technology it can do. And you can add social and special data in the same graph so you can mix everything and store everything in the same graph. Another example is financial data. You can also have all the stuff in a person and you can discover what he did with everything. What else? You can apply these two to computer numics, maybe, I don't know, to have a relation between a protein or whatever. Well, for creating Neo4j, there is a lot of options for doing it. You can use the framework or with Java directly. You have a lot of language bindings like Ruby, Python. I did myself an example with Ruby, the basic one. You have Gremlin, it's a very powerful tool for query Neo4j, like Perl. You can also have isomorphic, it's something that you can match a graph that you set and you can search on this graph, on existing graph. But it's on development currently. And you can use Snow to do a query like SQL for doing a search. Neo4j has these components, it's quite simple, it's just a half megabyte jar. You can download it in no matter of time, these are the components. You have the core of Neo4j, an indexing tool, a Neo4j shell, that is a command line shell, that you can run commands online, the Java API for interacting and doing more stuff. The component for backups, as always, and the set of algorithms and all the graph stuff. What else? This is the typical uses I found that are best for using the graph databases. That's the meaning for it. This is the projects I found out, customers for doing projects. In that meaning, you can have make algorithms for searching and patterns and that. High critical environments that already have RDVMS and they need to be more fast and agile. Biochemical for doing the research with proteins or whatever. Discret haven simulation, you can apply a pattern behavior for seeing everything in a graph database and doing a study or more simple. Social graph, the typical unit when you want to build a community, social community like Facebook or Twitter, they are using their own social graph and they are using a graph database. I found a tool with my work, as a sysadmin, that network architecture, like doing routing and Cisco and whatever, or switching. It's very useful tool to make the routes and everything about the network. What else? This is so much simple. This is a graph I made with a friend of mine. I analysed the jet eyes and seats. It's a simple example for showing what it's able to do. Or Neo4j, whatever. With the relationships and everything. This is made with Neo clips. It's a plugin for the clips and you can install it directly. And it represents the graph. Well, another example of routing. You have a set of routes and you can make a search and do the best way for going to a point to another point. This is another tool for visualisation graphs. I took this from one of the exemplars of the office. I think it's a GitHub example with all the followers and so on. What else? Another tool for visualisation graphs. No. Why Neo4j? It's one of the most used graphs in the world. It's persistent, embedded. You can install everywhere, almost. We have tests with Android mobile phones. Since it's a very small jar, you can install almost everywhere. In development since 2003, it's very scalable. There are lots of tools and buildings and frameworks. You can see further in the wiki or mailing lists. And it's a JPL version 3. And commercial. But for everything and all the uses are totally free. These are more of graph TV. The more typical, the more I meet more of the guys of this graph TV. They are the more options. You can watch a look at the wikipedia. There are lots of graph TVs and kinds of things. And it's all... This is all the... The mailing list is very active. There are lots of mails and questions. They are always answered directly from the developers. It's very fast to get help from there. You have the GitHub too. You can go there and clone Neo4j i use it at your laptop or whatever. You also have the wiki. The wiki for start with Neo4j is very fast. I use it that for learning a little about Neo4j. And you have two slides from two friends of mine, Pablo and Pera. I can explain anything else because I don't know. I have a partner of mine that will do more introduction to graph TVs. This is just a presentation of Neo4j and graph TV. If you have questions, I would like to... Will you be outside to take questions? Pera will be outside to take any questions. Because I'm just presenting this. I think it's all. Thank you very much.