Download Algernon in Java

• Use version 4.5 or higher with Protege 2.1 and Java 1.4
• Use version 4.4 with Protege 2.0 and Java 1.4
• Use version 3.7.6 with Protege 1.9 and Java 1.4
• Use version 3.5.6 with Protege 1.8 and Java 1.3

Current release: 5.0.1

Please report any bugs to mhewett AT users.sourceforge.net.

    Download algernon-protege-plugin.zip if you are using Algernon as a Protege plugin (the zip file contains algernon.jar)
    Download algernon.jar if you are using Algernon standalone
    Installation instructions
    View change log
    View Algernon license

Release: 4.4

Please report any bugs to mhewett AT users.sourceforge.net.

    Download algernon.jar
    View change log
    View Algernon license

Release 3.7.6

    Download algernon-3.7.6.jar

Release 3.5.6

    Download algernon-3.5.6.jar

Algernon v4.0 and higher

• Java 1.4.1 or higher.
• Protege v2.0.
• Algernon and Protege are both pure Java code so they run on many different hardware platforms. You should not have any trouble installing or running them if you have Java 1.4.1 installed.

Requirements

Algernon v3.6.0 and higher

• Java 1.4.1 or higher.
• Protege v1.9.
• Algernon and Protege are both pure Java code so they run on many different hardware platforms. You should not have any trouble installing or running them if you have Java 1.4.1 installed.

Algernon v3.5.6

• Java 1.3.1 or Java 1.4.x. Note: Protege 1.8 does not work with Java 1.4. If you want to use Algernon with Protege and Java 1.4, use Protege 1.9.
• Protege v1.8, build 1035 or higher.. Algernon does not work with Protege 1.7.

1. These instructions are for Protege 2.1 and higher
2. Download algernon-protege-plugin.zip (above).
3. Put algernon-protege-plugin.zip in your Protege plugins directory.
4. Unzip the algernon-protege-plugin.zip file. This will create the org.algernon directory containing the algernon.jar file and several documentation files.
5. Test the installation:
   • Start Protege.
   • Open the Newspaper example supplied with Protege.
   • Add the Algernon tab (in the Project/Configure menu).
   • (optional) save your project if you want to always run the Algernon tab.
   • Select the Algernon tab.
   • Press the "Ask" button.
   • You should see results in the output area that look like this.
6. Read the Algernon documentation to learn more.

1. These instructions are for Protege 1.8 through 2.0
2. Download algernon.jar (above).
3. Put algernon.jar in your Protege plugins directory.
4. Test the installation:
   • Start Protege.
   • Open the Newspaper example supplied with Protege.
   • Add the Algernon tab (in the Project/Configure menu).
   • (optional) save your project if you want to always run the Algernon tab.
   • Select the Algernon tab.
   • Press the "Ask" button.
   • You should see results in the output area that look like this.
5. Read the Algernon documentation to learn more.

Option 2: Run Algernon standalone

1. Download algernon.jar (above).
2. Download an Algernon test program (newspaper.alg).
3. Edit the newspaper.alg file to set the path to your copy of the newspaper.pprj file.
4. Run Algernon with this command:
   java -classpath protegepath/protege.jar:algernonpath/algernon.jar org.algernon.Algernon newspaper.alg
   (You may need other jars on your path if you use a database backend to Protege.)
5. You should see this output.

Known problems with this release

• The :TAXONOMY command doesn't correctly return all of its variables. However, all elements in the taxonomy are correctly created.
• Output from the LOAD button shows up in the console window rather than in the Protege tab.
• Output from :PRINTLN commands shows up in the console window rather than in the Protege tab.
• :LIST type is not supported.
• Algernon does not notice KB changes made by hand via the Protege gui.
• While you can now load rules stored in the KB, you can only load one rule set at a time.
• :FORC-INSTANCE and :FORC-CLASS do not work correctly yet.