Text document authentication by integrating inter character and word spaces watermarking.
Huijuan YangAlex C. KotPublished in: ICME (2004)
Keyphrases
- text documents
- fragile watermarking
- image authentication
- text corpus
- keywords
- text mining
- term frequency
- digital watermarking
- text classification
- co occurrence
- text categorization
- document classification
- wordnet
- topic models
- n gram
- automatic text categorization
- information extraction
- bag of words
- named entities
- document clustering
- tf idf
- watermarking algorithm
- handwritten words
- neural network
- document representation
- digital images
- information retrieval
- machine learning
- watermarking scheme
- maximum likelihood
- public key
- copyright protection
- training data
- search engine