MIME is under redesign. The new version is a web based tool called SNIPER: Snappy Interactive Pattern ExploRation
Interactive and Manual Construction of Classification Trees
Abstract: We propose an approach, in which a user can build tree based classification models under the assistance of a computer. We extend MIME, an existing framework for pattern discovery and exploration, with several mechanisms and visualisations for aiding a user to 1) construct new trees from scratch and 2) adapt existing trees, by showing good splitting points in the data, showing troublesome parts in the tree and automating computations of trees by standard techniques. We illustrate how our system can be used by non-classification experts to build interesting decision trees. Moreover, we provide a short experimental evaluation showing how trees generated using our tool compare to existing algorithms and their pruning techniques.
MIME: A Framework for Interactive Visual Pattern Mining
Abstract: We present a framework for interactive visual pattern mining. Our system enables the user to browse through the data and patterns easily and intuitively, using a toolbox consisting of interestingness measures, mining algorithms and post-processing algorithms to assist in identifying interesting patterns. By mining interactively, we enable the user to combine their subjective interestingness measure and background knowledge with a wide variety of objective measures to easily and quickly mine the most important and interesting patterns. Basically, we enable the user to become an essential part of the mining algorithm. Our demo currently applies to mining interesting itemsets and association rules, and its extension to episodes and decision trees is ongoing. 
MIME (Please find the qtjambi library at http://qt-jambi.org/ and the weka library at http://www.cs.waikato.ac.nz/ml/weka/, download both and place the jars (qtjambi.jar, qtjambi-yoursystem.jar and weka.jar in the mime_lib directory)
Example data can be found at the FIMI repository