Plagiarism Checker & Rewriter

Description

A complete plagiarism checking workflow designed for academic integrity. Document upload: paste text or upload DOCX/PDF, with automatic text extraction and segmentation into sentences. Similarity detection: compares against a configurable corpus (CNKI-style local database, web search results, or uploaded reference papers) using TF-IDF + sentence-embedding similarity with a customizable threshold. Results are displayed as an annotated document view — suspected passages highlighted in gradient colors (red >80%, orange 50-80%, yellow 30-50%) with source attribution showing the matched text and its origin.

AI-powered rewriting assistant: for each flagged passage, the system offers 3 alternative paraphrases with different styles (academic-formal, concise-summary, restructured-logic) while preserving the original meaning. Includes a citation-gap analyzer: scans the paper's reference list and flags statements that appear to need citations but lack them. Generates a comprehensive plagiarism report with overall similarity score, breakdown by source, and a certificate of originality. Batch-check mode for lab groups or advisors checking multiple student papers at once.

Metadata