We have formalized the translation of an anchor schema to an XML document. This formalization is referenced by our academic papers. Read it here:
For our paper submitted to DKE (Data & Knowledge Engineering) we have enhanced earlier made performance tests. These now test and compare performance in an anchor database to that in a less normalized database, with respect to several different conditions. The automated scripts for doing the tests are available here:
Our contribution can be found by clicking here. It’s an extremely minified (1016 bytes) version of the layout engine used in the online modeling tool. You can still build a node/edge model in it though.
We have released an early preview of an online tool for Anchor Modeling. It is made using HTML5 and makes heavy use of <canvas> and its related 2D API. This limits the (possibly) supported browsers to Chrome, Firefox, Safari, and Opera. It will not work in Internet Explorer.
Currently it has been tested with Chrome 6 (development channel), Firefox 4 Beta 3, and Firefox 3.6. Click the link in the navigation menu to start or use this direct link.
Currently the modeler will start up showing the example seen above. The tool is still at a very early stage of development. It is not meant for production use. The source code and development logs can be found on Google Code.
Note that, however slightly, both the graphical and XML notation has changed, as well as the naming conventions, in order to reflect the changes made in our latest paper (due to be published late this autumn).
The MariaDB fork of MySQL has added Table Elimination to its list of features, drawn from the techniques used in Anchor Modeling. You can read more about it by clicking here, which will take you to Sergey Petrunia’s blog, calling it “the biggest optimizer feature” in MariaDB 5.1.
We have carried out a number of performance tests in order to validate how Anchor Modeling performs in comparison to other techniques. The results can be found in the following files.