Data Mining, 3rd Edition

CHAPTER 12

The Knowledge Flow Interface

With the Knowledge Flow interface, users select Weka components from a tool bar, place them on a layout canvas, and connect them into a directed graph that processes and analyzes data. It provides an alternative to the Explorer for those who like thinking in terms of how data flows through the system. It also allows the design and execution of configurations for streamed data processing, which the Explorer cannot do. You invoke the Knowledge Flow interface by selecting KnowledgeFlow from the choices in the right panel shown in Figure 11.3(a).

12.1 Getting started

Here is a step-by-step example that loads an ARFF file and performs a cross-validation using J4.8. We describe how to build up the final configuration ...