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- W2057672081 abstract "Currently, structural pattern recognizer evaluations compare graphs of detected structure to target structures (i.e. ground truth) using recognition rates, recall and precision for object segmentation, classification and relationships. In document recognition, these target objects (e.g. symbols) are frequently comprised of multiple primitives (e.g. connected components, or strokes for online handwritten data), but current metrics do not characterize errors at the primitive level, from which object-level structure is obtained. Primitive label graphs are directed graphs defined over primitives and primitive pairs. We define new metrics obtained by Hamming distances over label graphs, which allow classification, segmentation and parsing errors to be characterized separately, or using a single measure. Recall and precision for detected objects may also be computed directly from label graphs. We illustrate the new metrics by comparing a new primitive-level evaluation to the symbol-level evaluation performed for the CROHME 2012 handwritten math recognition competition. A Python-based set of utilities for evaluating, visualizing and translating label graphs is publicly available." @default.
- W2057672081 created "2016-06-24" @default.
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- W2057672081 date "2013-02-04" @default.
- W2057672081 modified "2023-10-14" @default.
- W2057672081 title "Evaluating structural pattern recognition for handwritten math via primitive label graphs" @default.
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- W2057672081 doi "https://doi.org/10.1117/12.2008409" @default.
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