Domain-Specific Sentiment Word Extraction by Seed Expansion and Pattern Generation
Table 6: Experimental results on DSSW extraction
['finance', 'P', 'Hu04 0.5423', 'Qiu11 0.5404', 'Our 0.6347']
Our precision(P) improves significantly, especially in finance domain with 9.4% improvement. Our recall(R) improves slightly because there are still some sentiment words don’t co-occur with target words. Problem with hidden target words will be studied in future work.