02074nam 2200397 450 991079558950332120230803211653.03-8325-9278-4(CKB)4340000000242236(MiAaPQ)EBC52161955a8e86f3-e230-42d8-ba68-66c5b0dd2d03(EXLCZ)99434000000024223620180521d2014 uy 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierGas network optimization by MINLP /Jesco HumpolaBerlin :Logos Verlag,[2014]©20141 online resource (260 pages)PublicationDate: 201707253-8325-4505-0 Long description: This thesis is about mathematical optimization for an efficient operation of gas transmission networks. The challenging question is how to expand and operate the network in order to facilitate the transportation of specified gas quantities at minimum cost. This problem is a major challenge for gas network operators. It is extremely hard to solve due to the combinatorial complexity of the active network elements such as compressors, the nonlinear physical characteristic of pipelines, and the immense sizes of the problem instances. Mathematical models and optimization techniques can result in huge gains for the network operators in terms of cost reductions and automated computations. We tackle this challenge by developing novel mathematical theory and associated innovative optimization algorithms for large scale instances. This allows us to produce solutions for a real-world instance, i.e., the largest gas network in Germany.GasesAbsorption and adsorptionGasesAbsorption and adsorption.660.28423Humpola Jesco1476152MiAaPQMiAaPQMiAaPQBOOK9910795589503321Gas network optimization by MINLP3690566UNINA04018nam 22007455 450 991048498240332120250723061724.03-030-72240-610.1007/978-3-030-72240-1(CKB)4100000011807039(MiAaPQ)EBC6531643(Au-PeEL)EBL6531643(OCoLC)1244629161(PPN)254719279(DE-He213)978-3-030-72240-1(EXLCZ)99410000001180703920210329d2021 u| 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierAdvances in Information Retrieval 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 – April 1, 2021, Proceedings, Part II /edited by Djoerd Hiemstra, Marie-Francine Moens, Josiane Mothe, Raffaele Perego, Martin Potthast, Fabrizio Sebastiani1st ed. 2021.Cham :Springer International Publishing :Imprint: Springer,2021.1 online resource (760 pages)Information Systems and Applications, incl. Internet/Web, and HCI,2946-1642 ;126573-030-72239-2 Information retrieval -- Document representation -- Interactive information retrieval -- Web search engines -- Evaluation of retrieval results -- Multimedia and multimodal information retrieval -- Query processing -- Document ranking -- Recommendation -- Filtering -- Domain-specific search -- Enterprise search -- Artificial intelligence and machine learning for search and retrieval -- Conversational agents.This two-volume set LNCS 12656 and 12657 constitutes the refereed proceedings of the 43rd European Conference on IR Research, ECIR 2021, held virtually in March/April 2021, due to the COVID-19 pandemic. The 50 full papers presented together with 11 reproducibility papers, 39 short papers, 15 demonstration papers, 12 CLEF lab descriptions papers, 5 doctoral consortium papers, 5 workshop abstracts, and 8 tutorials abstracts were carefully reviewed and selected from 436 submissions. The accepted contributions cover the state of the art in IR: deep learning-based information retrieval techniques, use of entities and knowledge graphs, recommender systems, retrieval methods, information extraction, question answering, topic and prediction models, multimedia retrieval, and much more.Information Systems and Applications, incl. Internet/Web, and HCI,2946-1642 ;12657Information storage and retrieval systemsComputers, Special purposeComputer scienceSocial sciencesData processingEducationData processingNatural language processing (Computer science)Information Storage and RetrievalSpecial Purpose and Application-Based SystemsTheory of ComputationComputer Application in Social and Behavioral SciencesComputers and EducationNatural Language Processing (NLP)Information storage and retrieval systems.Computers, Special purpose.Computer science.Social sciencesData processing.EducationData processing.Natural language processing (Computer science)Information Storage and Retrieval.Special Purpose and Application-Based Systems.Theory of Computation.Computer Application in Social and Behavioral Sciences.Computers and Education.Natural Language Processing (NLP).004025.0425Hiemstra DjoerdMiAaPQMiAaPQMiAaPQBOOK9910484982403321Advances in Information Retrieval772246UNINA