Spatial-temporal co-occurrence in the maritime domain
Sollish, Andrew B.
Everton, Sean F.
Rowe, Neil C.
MetadataShow full item record
To prevent and stop illegal and malicious maritime activity, it is necessary to better understand the people, places, organizations, and vessels that contribute to those activities. This thesis examines whether spatial-temporal co-occurrence is useful for finding connections among vessels and providing understanding of their activities. A spatial-temporal co-occurrence means that two or more entities can be found nearby at the same time. To identify those occasions, we used two datasets, Automatic Identification System (AIS) records of vessel positions and time and company information on the ownership of vessels (used to confirm if vessels were affiliated). Three experiments studied co-occurrence among groups of vessels including randomly selected vessels, vessels of interest, and locations of interest. Vessels were identified for each of the three experiments and their co-occurrences were identified. We found that co-occurrence manifested in different ways and it was not especially useful in demonstrating affiliation among vessels.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Katz, Scott D. (Monterey, California. Naval Postgraduate School, 1998-03-01);Shiptrack occurrence is restricted to a narrow range of environmental conditions and ship operating characteristics. Under environmental conditions favorable for shiptrack formation, not all vessels produce a track. Shiptrack ...
An investigation of the quantification of the probability of occurrence of software engineering project risks with Bayesian probability Klabon, Matthew L. (Monterey, California. Naval Postgraduate School, 2007-12);This work undertakes an analysis of the methods used in the field of software engineering to measure the probability of occurrence of identified software engineering project risks. The purpose of this work is to investigate ...
Atkinson, Michael P.; Kress, Moshe; Szechtman, Roberto (Elsevier, 2017);Background: The US invests considerable effort in searching and interdicting drug-trafficking vessels in the Caribbean and Eastern Pacific regions. While some vessels are indeed interdicted, resulting in confiscation of ...