A. Unzueta, L. Escudero, M. A. Garin Martín

Starting from the binary quadratic formulation of the Cross-Dock door Assignment Problem (CDAP) model, different Linearized mixed Integer Programming (LIP) formulations are proposed, by using the Adams-Sherali RLT-k scheme for k=1 and a new type of binary variables, being all of them mathematically equivalent to the quadratic one. Some of the LIPs are based on tight formulations taken from the literature and one is original to this work. Given the (possibly) high dimensions of the models, a Lagrangean Dualization (LD) and decomposition scheme is used for obtaining a (hopefully) tight lower bound of the optimal solution of the original model. Two new submodels are drawn from the so-named splitting variable formulation of each of the LIPs ones. Additionally, a lazy heuristic scheme is considered for obtaining feasible solutions based on the Lagrangean ones. A broad computational experiment is carried out to perform a benchmark among the different proposed formulations.

Keywords: Quadratic combinatorial optimization, Cross-dock allocation of origin-destination, Reformulation Linearization Technique, Lagrangean Dualization, Lazy heuristic

Scheduled

Integer and Combinatorial Optimization
June 10, 2022  4:00 PM
Grade Hall


Other papers in the same session


Latest news

  • 6/8/22
    Visit Alhambra

    Tomorrow, Thursday, we will visit the Alhambra. 1. At 7:00 p.m., buses will start leaving from the door of the Hotel Granada Center (in front of the door of the Faculty of Sciences) 2. Upon arrival, groups with guides will be organized. 3. There will be groups in English language. These groups will wait at the destination until the arrival of all buses. 4. After the visit to the Alhambra we will walk to the Carmen de los Mártires to have a cocktail. 5. On the way back, we can go back by bus, which will leave from the same place where they left us at the Alhambra. 6. Although the way to the Alhambra by bus seems long, it really is close to the city. We invite you, whoever wishes, to go down for a pleasant walk. 7. Do not forget to take your Alhambra ticket and your identity card or passport. The document must be the same whose number matches the ticket number you have.

  • 5/31/22
    YouTube Channel

    The menu label is already on the web from where you can see the live broadcasts: inauguration, plenary sessions, round tables,... Don't forget to enter the YouTube channel and subscribe!!!!

  • 5/27/22
    Gala Dinner

    It opens the possibility that anyone who is registered for the conference, and wants non-registered companions to attend the gala dinner, can do so by paying the price of this dinner (80 euros VAT included). This payment must be made before June 1 (inclusive). To do this, contact with [email protected]

  • 5/23/22
    IMPORTANT WARNING

    To access the Alhambra on the visit on Thursday 9, it is obligatory to present the identification document whose reference was sent to the organization (eurocongress)

  • 5/16/22
    Social Events

    All social events are included with the payment of the corresponding registration.

Cookie policy

We use cookies in order to be able to identify and authenticate you on the website. They are necessary for the correct functioning of it, and therefore they can not be disabled. If you continue browsing the website, you are agreeing with their acceptance, as well as our Privacy Policy.

Additionally, we use Google Analytics in order to analyze the website traffic. They also use cookies and you can accept or refuse them with the buttons below.

You can read more details about our Cookie Policy and our Privacy Policy.