Stylometry In Authentication
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The document discusses stylometry, the analysis of writing style, emphasizing its applications in areas like plagiarism detection and author identification. It outlines various features of stylometry, including character-based, lexical, and syntactic elements essential for authenticating authorship. Additionally, it explores methods for feature selection and the use of neural networks in authorship detection.
Stylometry In Authentication
- 2. Stylometry – Writing Style analysis Assumptions: “There is an unconscious aspect to an author’s style that cannot be consciously manipulated but which possesses quantifiable and distinctive features”
- 3. Stylometry Applications • Plagiarism Checker. • Forensic analysis. • Author Identification. • Software Code analysis. • Genre classification. • Historical Study. • Context Understanding • Music Lyrics
- 4. Stylometry in Authentication • Passive Authentication • Continuous Authentication • Fallback Authentication
- 5. Stylometry Features Character Based Feature Lexical Feature Syntactic Feature Content Specific Feature Readability Feature Information Retrieval feature
- 6. Character Based Features Total Number of characters, • Ratio of capitalize character, • Ratio of white-space, tab space, lowercase, numeric • Frequency of special Character • Character N Gram
- 7. Lexical Feature • Number of words • Type/Token Ratio • Word N-grams • Positive words, Negative words, patriotic words • Same word frequency • Foreign word frequency, • Average word length • Numerical words etc..
- 8. Syntactic Feature • N-Grams of POS tags • Stop words • Frequency of punctuation • Proportion ration of singular to plural nouns, proper nouns, pronouns.
- 9. Content Specific feature • Frequency of content specific Keywords • Topic specific feature • Sentiment words • LIWC words
- 10. Readability & Information Retrieval Readability Features • Flesh Reading Ease • Flesh Kinkaid Grade level • Gunning Fog index • Coleman Liau Index • LIX • RIX • SMOG • ARI Information Retrieval Features • Cosine • Okapi BM25
- 13. Neural Network
- 14. Feature List
- 16. Open Question in Stylometry Authentication Feature Selection Adversary Stylometry