Table 3.
The Hybrid Pre-processing Techniques
| Datasets | Hybrid Pre-processing Techniques | No of features | ||
|---|---|---|---|---|
| Tokenization | Stemming | Lemmatization | ||
| Ott |
1.Transformer-basedTokenization. 2.Byte Pair Encoding (BPE). Contextual Word Embeddings. 3.Subword Tokenization. |
1. Hybrid Stemming with Sentiment Analysis. 2. Hybrid Stemming with Named Entity Recognition (NER). 3. Hybrid Stemming with Contextual Information. |
1. Machine Learning-based Lemmatization. 2. Hybrid Lemmatization with Word Embeddings. 3. Hybrid Lemmatization with Named Entity Recognition (NER). |
1230 |
| Yelp | 1238 | |||
| Amazon | 1234 | |||
| Trip Advisor | 1247 | |||
| IMDb | 1225 | |||