Research Article
Impact of Lexical Features on Answer Detection Model in Discussion Forums
Table 1
Lexical and nonlexical features.
| Type | Features | Description |
| Lexical | Syntactic | Extracted from sentence elements and structure | String-based | String/words base focusing on words of sentences | Semantic | Different words with the same meaning (contextual similarity) | Nonlexical | Forum-related | Forum-specific features | Thread-related | Features related to thread structure | Timeliness | Time elapsed between question and reply post | Author activeness | Shows how an author is active in the forum | Content-based | Does the text have some specific words/strings? |
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