<?xml version="1.0" encoding="UTF-8"?>
<OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd">
  <responseDate>2026-08-10T22:19:08Z</responseDate>
  <request identifier="22256" metadataPrefix="oai_dc" verb="GetRecord">https://drops.dagstuhl.de/oai</request>
  <GetRecord>
    <record>
      <header>
        <identifier>oai:drops-oai.dagstuhl.de:22256</identifier>
        <datestamp>2024-12-05T15:32:41Z</datestamp>
        <setSpec>ddc:004</setSpec>
        <setSpec>open_access</setSpec>
      </header>
      <metadata>
        <oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
          <dc:title>PACE Solver Description: Crossy - An Exact Solver for One-Sided Crossing Minimization</dc:title>
          <dc:creator>Röhr, Tobias</dc:creator>
          <dc:creator>Simonov, Kirill</dc:creator>
          <dc:subject>One-sided Crossing Minimization</dc:subject>
          <dc:subject>Exact Algorithms</dc:subject>
          <dc:subject>Graph Drawing</dc:subject>
          <dc:subject>Incremental MaxSAT</dc:subject>
          <dc:description>We describe Crossy, an exact solver for One-sided Crossing Minimization (OSCM) that ranked 5th in the Parameterized Algorithms and Computational Experiments (PACE) Challenge 2024 (Exact and Parameterized Track). Crossy applies a series of reductions and subsequently transforms the input into an instance of Weighted Directed Feedback Arc Set (WDFAS), which is then formulated in incremental MaxSAT . We use the recently introduced concept of User Propagators for CDCL SAT solvers in order to dynamically add cycle constraints.</dc:description>
          <dc:publisher>Schloss Dagstuhl – Leibniz-Zentrum für Informatik</dc:publisher>
          <dc:contributor>Tobias Röhr and Kirill Simonov</dc:contributor>
          <dc:date>2024</dc:date>
          <dc:relation>Is Part Of LIPIcs, Volume 321, 19th International Symposium on Parameterized and Exact Computation (IPEC 2024)</dc:relation>
          <dc:type>InProceedings</dc:type>
          <dc:type>Text</dc:type>
          <dc:type>doc-type:ResearchArticle</dc:type>
          <dc:type>publishedVersion</dc:type>
          <dc:format>application/pdf</dc:format>
          <dc:identifier>doi:10.4230/LIPIcs.IPEC.2024.30</dc:identifier>
          <dc:identifier>urn:nbn:de:0030-drops-222562</dc:identifier>
          <dc:identifier>https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.IPEC.2024.30</dc:identifier>
          <dc:language>eng</dc:language>
          <dc:rights>https://creativecommons.org/licenses/by/4.0/legalcode</dc:rights>
        </oai_dc:dc>
      </metadata>
    </record>
  </GetRecord>
</OAI-PMH>
