Sökning: "Anomaly detection"

Visar resultat 11 - 15 av 80 avhandlingar innehållade orden Anomaly detection.

1. 11. A timing approach to network-based anomaly detection for SCADA systems

   Författare :Chih-Yuan Lin; Simin Nadjm-Tehrani; Mikael Asplund; Aditya P Mathur; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SCADA securuty; anomaly detection;

   Sammanfattning : Supervisory Control and Data Acquisition (SCADA) systems control and monitor critical infrastructure in society, such as electricity transmission and distribution systems. Modern SCADA systems are increasingly adopting open architectures, protocols, and standards and being connected to the Internet to enable remote control. LÄS MER

3. 12. Towards Understanding the Social Structure of Email and Spam Traffic

   Författare :Farnaz Moradi; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Internet Backbone Traffic; Email Networks; Spam; Social Network Analysis; Community Detection; Anomaly Detection;

   Sammanfattning : Email is a pervasive means of communication on the Internet. Email exchanges between individuals can be seen as social interactions between email sender(s) and receiver(s), thus can be represented as a network. LÄS MER

4. 13. On a learning system for industrial automation : Model-based control and diagnostics for decision support

   Författare :Moksadur Rahman; Konstantinos Kyprianidis; Anders Avelin; Gunnar Bengtsson; John Hedengren; Mälardalens högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Learning system; Supervisory system; Pulp and paper; Micro gas turbine; Process modelling; Model-based control; Diagnostics; Decision support; Anomaly detection; Fault detection; Energy- and Environmental Engineering; energi- och miljöteknik;

   Sammanfattning : Access to energy is fundamental to economic and technological advancement. Hence, the more the world develops, the greater the demand for energy becomes. Evidently, the production and consumption of energy alone account for more than 80% of global anthropogenic greenhouse gas (GHG) emissions. LÄS MER

5. 14. Towards a learning system for process and energy industry : Enabling optimal control, diagnostics and decision support

   Författare :Moksadur Rahman; Konstantinos Kyprianidis; Anders Avelin; Bengtsson Gunnar; Agostino Gambarotta; Mälardalens högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Learning system; Supervisory system; Pulp and paper; Micro gas turbine; Process modelling; Model-based control; Diagnostics; Decision support; Anomaly detection; Fault detection; Energy- and Environmental Engineering; energi- och miljöteknik;

   Sammanfattning : Driven by intense competition, increasing operational cost and strict environmental regulations, the modern process and energy industry needs to find the best possible way to adapt to maintain profitability. Optimization of control and operation of the industrial systems is essential to satisfy the contradicting objectives of improving product quality and process efficiency while reducing production cost and plant downtime. LÄS MER

7. 15. Improving Community Detection Methods for Network Data Analysis

   Författare :Farnaz Moradi; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spam; Overlapping Communities; Networks; Misbehavior Detection; Seed Selection; Community Detection Algorithms; Medical Query Logs;

   Sammanfattning : Empirical analysis of network data has been widely conducted for understanding and predicting the structure and function of real systems and identifying interesting patterns and anomalies. One of the most widely studied structural properties of networks is their community structure. LÄS MER