2026-09-22T15:41:44Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/72850 2023-07-11 col_2142_5131 col_2142_10761 com_2142_5130 com_2142_10755 com_2142_234

Sanders, William H. Cheh, Carmen 2015-01-21T19:48:49Z 2015-01-21T19:48:49Z 2014-12 2015-01-21 2014-12 As the number of security incidents and sophistication of those attacks increase, it is difficult to properly detect and diagnose malicious behavior. We conjecture that detection and diagnosis could be facilitated by an online “world view” that maintains information about the ability of a system to perform its intended function. We have thus developed the Cyber-Physical Topology Language (CPTL) to represent, exchange, and analyze information about a system in a dynamic fashion. In this thesis, we define a CPTL data model to represent cyber-physical assets within a system and the relations among them. We also define operations on CPTL that extract features of the system by generating a new CPTL data model that differs from existing CPTL data models in terms of topological, semantic and property changes. We then show how to integrate heterogenous data sources and detect intrusions by incorporating this model into a feedback loop. Finally, we show the applicability of our approach in an enterprise setting. Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2014-12-11T19:55:08Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Cheh_Carmen.pdf: 1761539 bytes, checksum: 83e4694c28b2b31bf02e3c8c6c2ef4e5 (MD5) Made available in DSpace on 2015-01-21T19:48:49Z (GMT). No. of bitstreams: 1 Carmen_Cheh.pdf: 1761539 bytes, checksum: 83e4694c28b2b31bf02e3c8c6c2ef4e5 (MD5) http://hdl.handle.net/2142/72850 en Copyright 2014 Carmen Cheh Cyber-Physical Topology Language (CPTL) intrusion detection description logic graph theory ontology The cyber-physical topology language: definition and operations text Computer Science 1434 Computer Science 0112 University of Illinois at Urbana-Champaign Thesis M.S. MS:Computer Science -UIUC 10KS0112MS