AliCoCo: Alibaba E-commerce Cognitive Concept Net
Table 5. Experimental results in shopping concept tagging.
['Model', 'Precision', 'Recall', 'F1']
Comparing to baseline which is a basic sequence labeling model with Bi-LSTM and CRF, adding fuzzy CRF improves 1.8% on F1, which indicates such multi-path optimization in CRF layer actually contributes to disambiguation. Equipped with external knowledge embeddings to further enhance the textual information, our model continuously outperform to 0.8772 on F1. It demonstrates that introducing external knowledge can benefit tasks dealing with short texts with limited contextual information.