Large Multiclass Classification Task
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A Large Multiclass Classification Task is a Multiclass Classification Task with a Large Class Set, such as large Data Record Set.
- Example(s):
- See: Multiclass Classification Algorithm, Binary Classification Task.
References
2006
- (Ruch, 2006) ⇒ Patrick Ruch. (2006). “Automatic Assignment of Biomedical Categories: toward a generic approach.” In: Bioinformatics, 2006 Mar 15. doi:10.1093/bioinformatics/bti783.
2004
- (Schomaker & Bulacu, 2004) ⇒ Lambert Schomaker, and Marius Bulacu. (2004). “Automatic Writer Identification Using Connected-Component Contours and Edge-based Features of Uppercase Western Script.” In: IEEE Transactions on Pattern Analysis and Machine Intelligence, 26(6). doi:10.1109/TPAMI.2004.18
- QUOTE: A more realistic solution would entail the use of a trained distance function between two given sample feature vector. Although the idea of trained distance functions as such is appealing, preliminary experiments revealed that the results where not much better than those obtained by nearest-neighbor search. The number of contrasting classes (writers) is large, and it is difficult to find a distance function which suits all local sample configurations with a smooth margin separating ’near’ (same-identity) from ’far’ (different-identity) samples. At this moment, the combination of a comparable or lower performance with the additional cost of training efforts and additional parameters seems unattractive. However, more research is needed here, indeed.