Core Weka

• EM and SimpleKMeans now allow for parallel processing on multi cpu/core machines

• CSVLoader re-written to be more memory efficient and support incremental loading

• Error plots for classifiers can optionally have point sizes set proportional to the prediction margin

• Pluggable evaluation metrics for classifiers/regressors

• Weighted resampling using the Walker's alias method

• FlowByExpression - KnowledgeFlow component to split incoming instances (or instance stream) according to the evaluation of a logical expression

• ReplaceMissingWithUserConstant filter

• PartitionMembership filter - adds partition membership attributes as computed by a classifier that implements PartitionGenerator

• Stream throughput metrics in the KnowledgeFlow when running incrementally

• TextSaver KnowledgeFlow component

• Search facility in the KnowledgeFlow design palette

• Keyboard shortcuts in the KnowledgeFlow for toolbar buttons

• Offline mode for the packge manager

• Improved out of memory detection and new low memory detection for GUIs

In Packages

• New isolationForest package - isolation forests for outlier detection

• New multilayerPerceptrons package

• New extraTrees package

• Performance improvements for optics_dbScan

• New lazyAssociativeClassifier package contributed by Gessé Dafé

• New EvolutionarySearch package contributed by Sebastian Luna Valero