Tools | Metrics | Accuracy | Requirements | Reference | |
The Biber Tagger | Grammatical complexity metrics | 89% | Not public available | Biber et al. | 1999 |
Coh-Metrix | 108 metrics of Cohesion, syntactic complexity, lexical diversity, word information | 90% | Online interface (Chrome or Firefox browser) | McNamara et al. | 2014 |
L2 Syntactic Complexity Analyzer (L2SCA) | 14 metrics of syntactic complexity | F-score of 0.83 for complex nominal | Online interface; MAC, LINUX or UNIX systems with Java | Lu | 2010 |
Tools for Automatic Analysis of Syntactic Sophisation and Complexity (TAASSC) | 178 indies of syntactic complexity | 91% | Windows, MAC or Python | Kyle | 2016 |