Dagstuhl

Following the model of the mathematical center at Oberwolfach, the center is installed in a very remote and relaxed location in the countryside. The Leibniz Center is located in a historic country house, Schloss Dagstuhl (Dagstuhl Castle), together with modern purpose-built buildings connected by an enclosed footbridge. The ruins of the 13th-century fortress Dagstuhl Castle are nearby, a short walk up a hill from the Schloss. ==History==

Schloss Dagstuhl Construction of the historic country house was started in 1760 on the orders of Count Joseph Anton Damian Albert von Oettingen-Baldern and Soetern, its chapel was built in 1763. A year after Count Joseph's death in 1778, his second wife, Maria Antonia von Walburg zu Zeil and Wurzach, married Prince Hermann Maria Friedrich Otto von Hohenzollern-Hechingen, but she had to flee Schloss Dagstuhl in the face of advancing French revolutionary troops in 1792. Schloss Dagstuhl was acquired in 1957 by an order of Franciscan nuns, who converted many rooms to living quarters, installed central heating, wires for electricity, new bathroom facilities, and pipes for water. The conversion into a home for the elderly was finished in 1961. In 1976, work on an addition with 3 stories was started. The ownership of Schloss Dagstuhl was transferred to the Franciscan order in Waldbreitbach in 1981. During the renovations, which also took into account that the bishop of Trier had chosen Schloss Dagstuhl as one of his vacation locations, the old wooden staircase was replaced by today's marble one. The latest addition to the ensemble of buildings was the guest house in 2012, which houses a meeting room and 7 guest rooms. Leibniz-Zentrum für Informatik The Schloss Dagstuhl – Leibniz-Zentrum für Informatik GmbH (LZI, Leibniz Center for Informatics) was established at Dagstuhl in 1990. The center is managed as a non-profit organization, and financed by national funds. It receives scientific support by a variety of German and foreign research institutions. Until April 2008 the name of the center was: International Conference and Research Center for Computer Science (German: Internationales Begegnungs- und Forschungszentrum für Informatik (IBFI)). The center was founded by Reinhard Wilhelm, who continued as its director until May 2014, when Raimund Seidel became the director, who in turn was succeeded by Holger Hermanns in May 2025. The list of shareholders includes: • German Informatics Society • Saarland University • Technical University of Kaiserslautern • Karlsruhe Institute of Technology • Technische Universität Darmstadt • University of Stuttgart • University of Trier • Goethe University in Frankfurt • Centrum Wiskunde & Informatica, Netherlands • Institute for Research in Computer Science and Automation, France • Max Planck Society Since 1 January 2005, the LZI is a member of the Leibniz Association. ==Library==

Dagstuhl's computer science library has over 50,000 books and other media, among them a full set of Springer-Verlag's Lecture Notes in Computer Science (LNCS) series and electronic access to many computer science journals. Many of the books are signed by their authors, as Schloss Dagstuhl asks seminar participants to sign their books. ==Seminar series==

Dagstuhl supports computer science by organizing high ranked seminars on hot topics in informatics. Dagstuhl Seminars, which are established after review and approval by the Scientific Directorate, bring together personally invited scientists from academia and industry from all over the world to discuss their newest ideas and problems. Apart from the Dagstuhl seminars, the center also hosts summer schools, group retreats, and other scientific events, all discussing informatics. Every year about 3,500 scientists stay in Dagstuhl for about 100 seminars, workshops and other scientific events. The number of participants is limited to enable discussion and by the available housing capacity. The stay is full-board; participants are accommodated in the original house or in the modern annex, and have all their meals at the center. Seminars are usually held for a weekly period: participants arrive on Sunday evening and depart on Friday evening or Saturday morning. One or sometimes two seminars are held simultaneously with other small meetings. ==Publications==

Dagstuhl Publishing maintains various open access publication activities that include conference proceedings, reports, and journals. As well as publishing proceedings from its own seminars, the Leibniz Center publishes the Leibniz International Proceedings in Informatics (LIPIcs), a series of open access conference proceedings from computer science conferences worldwide. Conferences published in this series include the Symposium on Theoretical Aspects of Computer Science (STACS), held annually in Germany and France, the conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS), held annually in south Asia, the Computational Complexity Conference (CCC), held at a different international venue each year, the Symposium on Computational Geometry (SoCG), the International Colloquium on Automata, Languages and Programming (ICALP), the International Symposium on Mathematical Foundations of Computer Science (MFCS), the International Conference on Concurrency Theory (CONCUR), and the International Conference on Database Theory (ICDT). As of 2024, the Leibnitz Center publishes two academic journals. The Leibniz Transactions on Embedded Systems (LITES), established in 2014, focus on all aspects of embedded systems. The Transactions on Graph Data and Knowledge (TGDK), established in 2023, focuses on knowledge graphs, graph-based data management and modelling, and related methods. ==See also==