Install protege eclipse

Although the size of the information this domain deals with is very large and so poses a threat to the gathering of intelligence, the pattern in this domain is the same as in the others. There is still aggregated content that need to be categorized through reference structures, and the desired value needs to be extracted by algorithms from that content.

Online games have much aggregated content and reference structures which reflect the rules of the games, and they have algorithms make the games sophisticated and interesting. They incorporate human input to make the game more entertaining.

As is obvious, all intelligent web applications need to have all three ingredients incorporated. These work together to achieve the goals of intelligent web design. The process was rather painless and straightforward in Jena. Our goal was to see if we could replicate this with the tools at our disposal with the Protege software. Now, the example dealt with combining ontologies, aligning and reasoning with them and querying them.

In theory everything that can be done for this topic in Jena, can be done in Protege as well, but I have found it far more complicated to work with Protege than with Eclipse and the Jena framework. Although Protege is said to be easier to deal with since it has a user-friendly graphical interface, I find it is more demanding in the way files are treated and the way to query the ontologies. I happen to think that Eclipse and Jena are quite easier to work with, especially if the person using it has been exposed to Java code before.

If that is the case, than once the ontology files are added to the project the code to access the ontologies is easy to decipher. Nevertheless, my goal was to replicate the example in Protege, so I began by opening the ontology files provided for the example in chapter 2 of the book and merging them. I started this by actually importing each of the files into Protege 4. I made person and individual be equivalent classes, and made knows in the foaf ontology a superproperty for hasFriend, and I declared hasName and foaf:name as equivalent properties.

Below are some screen shots of those operations. Once that worked, I opened the ontology in Protege 3. Querying in Protege seems more difficult and less efficient than using Eclipse and Jena. It is possible to get the results we expect, but it is much more of a hassle. Here are some queries I ran:. Obviously, it is possible to do in Protege what can be done in Jena. The question now is, should it. I happen to think that Protege is too stringent in th way it handles such operations as we were performing for this example, and it is a lot less time-consuming to use Jena.

This particular example was more straightforward when done with Jena. In my Semantic Web class we were assigned the task of creating and querying a model in Protege. This proved to be quite difficult. It was very daunting getting the file open in Protege. When saving the file, the format would be altered and so was not properly opened, instead it was missing a lot of the information necessary for an ontology and for our querying purposes. I tried numerous things to get the file to open correctly, but nothing worked.

The main issue encountered was that the FOAF schema file, which is supposed to be accessed automatically by the address in the rdf heading of the FOAF file we created, was not actually accessed and so there was no schema attached to the file.

I tried to import it quite a few times, but it would not work as expected. Then, one of my fellow students found a way around this by downloading and using Altova Semantic Works software which allows you to create and edit RDF files, and save them in the proper format. This software made the entire assignment come together. Then, we merged them into one ontology and the relationships were finally visible for the ontology we created.

After getting some information on SPARQL querying through tutorials suggested by our professor, it was time to put our knowledge to the test and try a few queries. The installation process was tedious but not very complicated. I began by making updates to my computer because it would otherwise complain when I tried to update the version of Java on my computer.

Once I was able to update Java, I downloaded and installed Eclipse Helios, and ran it to make sure the installation worked, then I downloaded Jena. After that, I concentrated on downloading Protege and then Pellet which gave me a bit of trouble, and I had to try download it a few times before I was successful. Once I was sure all the downloads were successful, I ran the example from chapter two in the book the FOAF friends example. It ran as expected and gave the following result:.

The main comment I have, is that it would be a lot less trouble if there was a site you could go to which would have all the downloads you need for semantic web activities in one location. At the very most basic layer everything is a thing, as with all flow charts I have seen with Jena. There is one Concept Code, which is the feature ID , one Concept Scheme Class, which is the classification of the feature, such as a park , three documents Map, Wikipedia article, RDFdata, these I believe are self-explanatory , and one spatial thing Feature, which is a location on the map.

In the end, each of these Things contain their own set of qualities that describe them, but this is the general hierarchy. This is much more complex than the hierarchy of FOAF. While making a new point on the map, it was somewhat difficult to mark a location since you needed to be able to identify the location from an aerial view.

Also, it feels like the GUI allows you to input a lot of information, but none of it really useful or meaningful to the average person.

If it allowed more information to be input that was more geared towards the average person as well as a few different search options for finding unmarked points it would be a bit better. You had to enter a bunch of information, but none of the intrusive information was required to be entered and it encrypted email addresses if you wanted them to.

The only complaint I had was that since a FOAF file is supposed to resemble a business card the option to include a few more lines of contact would be nice and maybe possibly a keyword option for keyword searching. But none of this was detrimental to my user experience. From what I can see, from the UI each recipe is divided into three classes: ingredients, cooking time, and calories.

From a user standpoint, I really like how simple this is to use. You can just search an ingredient and it will give you a huge list of recipes that you can then refine based on other ingredients, cook time, etc. If they had a way of rating the difficulty of the recipe and if the recipe site was easier to find I think it would be nearly perfect. Unfortunately, due to the fact that I am limited to the UI to come up with the ontology, I cannot comment on that part as much, so I will have to leave this part as a mostly user review of the site.

These tools can be obtained from the accompanying links. In order to install Eclipse, you first need to go to the link listed in this blog, It will download as a zip file. Unpack this file to the location of your choice in my case, my progam files folder in my C drive and if you like, create a shortcut to the exe file on your desktop.

To install Jena, go to the listed link and unpackage that zip file to the location of your choice, preferably somewhere easily found. In my case, directly into the C drive. Protege comes with its own installer, so when you go to the accompanied link, you only need to download the installer exe and run it, installing it with your own preferences. Finally, in order to download the Pellet plug-in all you need to do is run Protege.

Click on the file menu then click check for plug-ins. A menu will pop up, on this menu click on the downloads tab. Check the check box and click install. The above image is the sample output for an example for the use of Eclipse with the Jena Libraries.

Take the code from eclipse example and insert it into an elipse project as a java file. Then right-click the project, click on properties, click on Java Build Path, and click libraries. Click add external jars and import the jar files from your Jena folder, wherever you happened to install it. When you run this code, your output should appear as the above image. If it does not, ensure that you have impoted the proper Jena libraries.

Greetings all. This is the first post in a continuous blog that will be maintained throughout my work with semantic web technologies at Florida Atlantic University. Here is the link to our site: semanticweb.

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