Replication issues in syntax-based aspect extraction for opinion mining
Table 2: Performance comparison for DBA.
['[BOLD] Corpus', '[BOLD] Original  [BOLD] P', '[BOLD] Original  [BOLD] R', '[BOLD] Ours  [BOLD] P', '[BOLD] Ours  [BOLD] R']
Again, we see huge differences between our results and the ones reported by the original paper. Moreover, in this case we observe particularly low values for precision. A detailed review of the extracted aspects showed us that in fact many of the extracted terms do not correspond to aspects but rather to common nouns that are not related to the product.