| Name | Description | Type | Package | Framework |
| HitHistogram | Computes the hit histogram. | Class | org.apache.commons.math3.ml.neuralnet.twod.util | Apache Commons |
| LocationFinder | Helper class to find the grid coordinates of a neuron. | Class | org.apache.commons.math3.ml.neuralnet.twod.util | Apache Commons |
| LocationFinder .Location | Container holding a (row, column) pair. | Class | org.apache.commons.math3.ml.neuralnet.twod.util.LocationFinder | Apache Commons |
| MapDataVisualization | Interface | org.apache.commons.math3.ml.neuralnet.twod.util | Apache Commons | |
| MapVisualization | Interface for algorithms that compute some property of a 2D-map. | Interface | org.apache.commons.math3.ml.neuralnet.twod.util | Apache Commons |
| NeuronSquareMesh2D | Neural network with the topology of a two-dimensional surface. | Class | org.apache.commons.math3.ml.neuralnet.twod | Apache Commons |
| NeuronSquareMesh2D .HorizontalDirection | Horizontal (along row) direction. | Class | org.apache.commons.math3.ml.neuralnet.twod.NeuronSquareMesh2D | Apache Commons |
| NeuronSquareMesh2D .VerticalDirection | Vertical (along column) direction. | Class | org.apache.commons.math3.ml.neuralnet.twod.NeuronSquareMesh2D | Apache Commons |
| QuantizationError | Computes the quantization error histogram. | Class | org.apache.commons.math3.ml.neuralnet.twod.util | Apache Commons |
| SmoothedDataHistogram | Visualization of high-dimensional data projection on a 2D-map. | Class | org.apache.commons.math3.ml.neuralnet.twod.util | Apache Commons |
| TopographicErrorHistogram | Computes the topographic error histogram. | Class | org.apache.commons.math3.ml.neuralnet.twod.util | Apache Commons |
| UnifiedDistanceMatrix | visualization of high-dimensional data projection. | Class | org.apache.commons.math3.ml.neuralnet.twod.util | Apache Commons |