@misc{LeitnerLjubicSinnletal., author = {Leitner, Markus and Ljubic, Ivana and Sinnl, Markus and Werner, Axel}, title = {On the Two-Architecture Connected Facility Location Problem}, issn = {1438-0064}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-18610}, abstract = {We introduce a new variant of the connected facility location problem that allows for modeling mixed deployment strategies (FTTC/FTTB/FTTH) in the design of local access telecommunication networks. Several mixed integer programming models and valid inequalities are presented. Computational studies on realistic instances from three towns in Germany are provided.}, language = {en} } @article{LeitnerLjubicSinnletal., author = {Leitner, Markus and Ljubic, Ivana and Sinnl, Markus and Werner, Axel}, title = {ILP heuristics and a new exact method for bi-objective 0/1 ILPs: Application to FTTx-network design}, series = {Computers \& Operations Research}, journal = {Computers \& Operations Research}, doi = {10.1016/j.cor.2016.02.006}, language = {en} } @misc{LeitnerLjubicSinnletal., author = {Leitner, Markus and Ljubic, Ivana and Sinnl, Markus and Werner, Axel}, title = {Two algorithms for solving 3-objective k-ArchConFL and IPs in general}, issn = {1438-0064}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-56259}, abstract = {We present two algorithms to solve a 3-objective optimization problem arising in telecommunications access network planning, the k-Architecture Connected Facility Location Problem. The methods can also be used to solve any 3-objective integer linear programming model and can be extended to the multiobjective case. We give some exemplary computations using small and medium-sized instances for our problem.}, language = {en} } @article{LeitnerLjubićSinnletal.2013, author = {Leitner, Markus and Ljubić, Ivana and Sinnl, Markus and Werner, Axel}, title = {On the Two-Architecture Connected Facility Location Problem}, series = {Electronic Notes in Discrete Mathematics}, volume = {41}, journal = {Electronic Notes in Discrete Mathematics}, address = {Costa Adeje}, doi = {/10.1016/j.endm.2013.05.113}, pages = {359 -- 366}, year = {2013}, language = {en} } @incollection{PedersenLjubić, author = {Pedersen, Jaap and Ljubić, Ivana}, title = {Prize Collecting Steiner Tree Problem and its Variants}, series = {Encyclopedia of Optimization}, booktitle = {Encyclopedia of Optimization}, editor = {Pardalos, Panos M. and Prokopyev, Oleg A.}, publisher = {Springer International Publishing}, address = {Cham}, language = {en} }