Table 1.
Features for datasets linguistic complexity analysis in FEM
| Category | Reference | Feature |
|---|---|---|
| Syntactic complexity indices | [10] | Mean length of Sentence (MLS) |
| Lexical sophistication | [48] | LS1 |
| LS2 | ||
| Lexical variation | [48] | Lexical word variation |
| Verb variation-II (VV-2) | ||
| Noun variation (NV) | ||
| Adjective Variation (AdjV) | ||
| Type–token ratio (TTR) | ||
| Uber index | ||
| Lexical Diversity | [46] | Measure of Textual Lexical Diversity (MTLD) |
| Lexical richness | [49] | Hapax Richness |
| Lexical readability | [45] | Flesch-kincaid readability score |
| Flesch’s reading ease score | ||
| Spelling mistakes | [50] | Percentage of spelling mistakes |
| Word length | [47] | Mean Length of Word Strings |