Threshold logic unit

Nodes that employ a step activation function are sometimes known as threshold logic units (TLUs). 

The continuous discriminant s is usually compared with some constant value in a "threshold logical unit" (TLU). The output of the TLU is used... 

A "committee machine uses several different classifiers for the same classification problem in a parallel manner. The classifiers may stem e.g. from different training processes with the same training set. The results (scalar products) are summarized to give the final classification. Threshold logical units are usually applied and the majority of votes determines the class membership. Correct classification for all members of the training set may be obtained by a committee machine even if the data set is not Linearly separable. Unfortunately, no exhaustive theory about the training of several parallel classifiers exists. 

Even physical properties such as temperature can serve as input to molecular YES logic devices producing fluorescence output. These are a subset of luminescent molecular thermometers. Very sensitive thermometers of the YES logic type are acrylamide polymers labeled with benzofurazan-containing fluorophore, 4. ° The fluorescence of the benzofurazan unit drops with increasing solvent polarity, whereas the acrylamide polymer molecules form a low-polarity globular structure at high temperatures. So, the combined system switches on fluorescence as the temperature increases beyond a quite sharp threshold. 

---