Why NLP Should Move Into IAS

Victor Raskin, Sergei Nirenburg,Mikhail J. Atallah,

Christian F. Hempelmann, andKatrina E. Triezenberg

The Paper Plan

• Applications of NLP to IAS

• Ontological semantics at IAS service

• NLP/IAS applications so far

• Milestones and challenges in NLP/IAS

Applications of NLP to IAS

• IAS: Need to protect computer systems and information in them from attacks

• IS: Protection from intrusion and unauthorized use

• IA: Ensuring authenticity of stored and transmitted information

• Much of the information is NL text: Enter NLP!

Ontological-Semantics at IAS Service

• Based on computer understanding of the information

• Takes full advantage of the new technologies in computational semantics

• Problem-driven

• Uses 3 major resources: 1. lexicon (words of an natural language explained in terms of an

ontological concept)

2. ontology (a tangled hierarchy of concepts)

3. text-meaning representation (TMR): (composes sentential meaning out of out of ontological concepts)

Ontological-Semantics at IAS Service (cont’d)

•using machine translation for an additional layer of encryption;

•generating mnemonics for random-generated passwords;

•declassification or downgrading of classified information;

•NL watermarking;•digital rights protection;

NLP/IAS Applications So Far

NLP/IAS Applications So Far(cont’d)

• forensic IAS, specifically, tracing leaks in divulging protected information;

• tamperproofing textual data;•enhancing the acceptance of IAS

products by the users with the help of computational humor;

•NL chaffing

Milestones and challenges in NLP/IAS

• Reaching IAS accuracy needs with semantic-representational methods

• Extending the ontological-semantic approach to non-NL data

• Including NL data sources as an integral part of the overall data sources in IAS applications

• Standardizing IAS terminology on ontological-semantic basis

• Modeling the IAS know-how ontologically for the support of routine and time-efficient measures to prevent and counteract computer attacks