This paper presents a query-answering algorithm to compute minimal lines of defence around an individual argument. The algorithm returns all such defence sets together with an indication whether the defence is grounded or admissible. For every argument encountered in the search process the algorithm further indicates whether that argument is IN, OUT, or UNDEC (undecided) according to the grounded semantics. The presentation of the algorithm is followed by a correctness proof and a complexity analysis of other than worst cases. The algorithm is already functional in argument analysis and visualization tools.
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
Tel.: +1 703 830 6300
Fax: +1 703 830 2300 firstname.lastname@example.org
(Corporate matters and books only) IOS Press c/o Accucoms US, Inc.
For North America Sales and Customer Service
West Point Commons
Lansdale PA 19446
Tel.: +1 866 855 8967
Fax: +1 215 660 5042 email@example.com