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  <a href="http://www.a4cp.org">Association for Constraint Programming</a>
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We have extended the deadline until midnight AoE July 21st. Workshop details are listed below.

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ModRef 2019 The Eighteenth International Workshop on Constraint Modelling and Reformulation

ModRef is co-located with The 25th International Conference on Principles and Practice of Constraint Programming (http://cp2019.a4cp.org/) in Stamford, CT, U.S. on the 30th of September.

--- Submission details and important dates are available on the workshop website (https://modref.github.io/ModRef2019).

--- Call for Presentations (New Deadline: July 21st, 2019) This year ModRef will again include presentations that are not based on submitted papers. In addition to the presentation of research results, we especially welcome talks describing ongoing work, recent breakthroughs, future directions, and descriptions of interesting aspects of existing systems. Lightweight submissions must be in the form of a one (1) or two (2) pages extended abstract (excluding references) in the Lecture Notes in Computer Science (LNCS) style.

--- Call for Papers ( New Deadline: July 21st, 2019) In addition to the short form abstract only submissions we are also accepting full paper submissions. These must be formatted in the Lecture Notes in Computer Science (LNCS) style and must be within 15 pages excluding references. Submissions of shorter papers, including position papers, are also welcome.

All submissions will be reviewed and those that are well-written and make a worthwhile contribution to the topic of the workshop will be accepted for publication in the workshop proceedings. The proceedings will be available electronically at CP 2019. Accepted contributions will be allowed a time slot for a presentation at the workshop. At least one author of each accepted paper must attend and present at the workshop. Please note that every workshop participant needs to be registered for the workshop.

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