LEADER 02421nam 2200337 450 001 9910510456703321 005 20230825211948.0 035 $a(CKB)4930000000238290 035 $a(NjHacI)994930000000238290 035 $a(EXLCZ)994930000000238290 100 $a20230825d2021 uy 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aProceedings of the 40th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems /$fLeonid Libkin 210 1$aNew York :$cAssociation for Computing Machinery,$d2021. 215 $a1 online resource (440 pages) 311 $a1-4503-8381-5 330 $aIt is our great pleasure to welcome you to the 40th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems (PODS 2021), held online on June 21-23, 2021, in conjunction with the 2021 ACM SIGMOD International Conference on Management of Data. The online conference is complemented with a local physical event at Xi'an, Shaanxi, China, primarily targeting the strong data management community in China. Since the first edition of the symposium in 1982, the PODS papers are distinguished by a rigorous approach to widely diverse problems in data management, often bringing to bear techniques from a variety of different areas, including computational logic, finite model theory, computational complexity, algorithm design and analysis, programming languages, and artificial intelligence. The PODS Symposia study data management challenges in a variety of application contexts, including more recently parallel computation, streaming data, graph data, probabilistic data, information retrieval, ontology and semantic web, and data-driven processes and systems. PODS has a tradition of being the premier international conference on the theoretical and foundational aspects of data management; and the interested reader is referred to the web page https://databasetheory.org/pods for information on the history of this conference series. 606 $aElectronic data processing 615 0$aElectronic data processing. 676 $a004 700 $aLibkin$b Leonid$01394201 801 0$bNjHacI 801 1$bNjHacl 906 $aBOOK 912 $a9910510456703321 996 $aProceedings of the 40th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems$93451231 997 $aUNINA