TY - CONF AU - Urbán, Szabolcs AU - Sipka, Gábor AU - Balogh, András AU - Besenyi, Zsuzsanna AU - Csirik, János AU - Pávics, László TI - Agyi vérátfolyás SPECT vizsgálatok automatikus kvantitatív elemzése: előzetes eredmények T2 - Magyar Orvostudományi Nukleáris Társaság XXII. kongresszusa PB - MONT C1 - Szeged PY - 2022 UR - https://m2.mtmt.hu/api/publication/32921376 ID - 32921376 LA - Hungarian DB - MTMT ER - TY - CONF AU - Mikó, Zsófia Sára AU - Szabó, Eszter AU - Urbán, Szabolcs AU - Csirik, János AU - Besenyi, Zsuzsanna AU - Pávics, László TI - Automatikus tüdőszegmentáló program hatékonyságának vizsgálata tüdőnodulus miatt vizsgált betegekben: kezdeti eredményeink T2 - Magyar Orvostudományi Nukleáris Társaság XXII. kongresszusa PB - MONT C1 - Szeged PY - 2022 UR - https://m2.mtmt.hu/api/publication/32921371 ID - 32921371 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Bódis, Attila AU - Csirik, János TI - The variable-width strip packing problem JF - CENTRAL EUROPEAN JOURNAL OF OPERATIONS RESEARCH J2 - CEJOR VL - 30 PY - 2022 IS - 4 SP - 1337 EP - 1351 PG - 15 SN - 1435-246X DO - 10.1007/s10100-021-00772-3 UR - https://m2.mtmt.hu/api/publication/32337554 ID - 32337554 AB - Here, we focus on a generalized version of the strip packing problem; namely we have several open-end strips with different widths, and we wish to pack rectangular items into these strips without overlapping such that we have to minimize either the makespan (i.e. the top of the topmost item), or the total area used. We investigate the online variant of the problem, where the items are arriving one-by-one, and we have to make irrevocable decisions on their packing. A similar framework was proposed by Ye and Mei (On-line scheduling of parallel jobs in heterogeneous multiple clusters. Frontiers in algorithmics and algorithmic aspects in information and management, Springer, Berlin, pp 139-148, 2012. https://doi.org/10.1007/978-3-642-29700-7_13) for scheduling models, and they studied the absolute competitive ratio of their algorithm. Our contribution is to define a new objective function and several algorithms by combining so-called shelf algorithms with techniques taken from the areas of the variable-sized bin packing problem and scheduling. We analyzed the asymptotic competitive ratio of our algorithms. LA - English DB - MTMT ER - TY - JOUR AU - Urbán, Szabolcs AU - Szabo, E. AU - Mikó, Zsófia Sára AU - Csirik, János AU - Besenyi, Zsuzsanna AU - Pávics, László TI - A new fully automated method for lung segmentation using low-dose CT JF - EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING J2 - EUR J NUCL MED MOL I VL - 48 PY - 2021 IS - Suppl. 1 SP - S493 EP - S494 PG - 2 SN - 1619-7070 UR - https://m2.mtmt.hu/api/publication/32784728 ID - 32784728 LA - English DB - MTMT ER - TY - JOUR AU - Urbán, Szabolcs AU - Racz, V. AU - Farkas, István AU - Csirik, János AU - Besenyi, Zsuzsanna AU - Pávics, László TI - An automated bladder/lesion separation method using 99mTc-PSMA SPECT/CT images JF - EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING J2 - EUR J NUCL MED MOL I VL - 48 PY - 2021 IS - Suppl. 1 SP - S495 EP - S496 PG - 2 SN - 1619-7070 UR - https://m2.mtmt.hu/api/publication/32784727 ID - 32784727 LA - English DB - MTMT ER - TY - JOUR AU - Mikó, Zsófia Sára AU - Szabo, E. AU - Csirik, János AU - Urbán, Szabolcs AU - Besenyi, Zsuzsanna AU - Pávics, László TI - Clinical validation of a fully automated lung segmentation method in patients with pulmonary nodules: preliminary results JF - EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING J2 - EUR J NUCL MED MOL I VL - 48 PY - 2021 IS - Suppl. 1 SP - S85 EP - S85 PG - 1 SN - 1619-7070 UR - https://m2.mtmt.hu/api/publication/32784726 ID - 32784726 LA - English DB - MTMT ER - TY - JOUR AU - Bánhalmi, András AU - Bilicki, Vilmos AU - Megyeri, István AU - Majó, Zoltán AU - Csirik, János TI - Extracting Information from Wi-Fi Traffic on Public Transport JF - INTERNATIONAL JOURNAL OF TRANSPORT DEVELOPMENT AND INTEGRATION J2 - INT J TRANSP DEV INTEGR VL - 5 PY - 2021 IS - 1 SP - 15 EP - 27 PG - 13 SN - 2058-8305 DO - 10.2495/TDI-V5-N1-15-27 UR - https://m2.mtmt.hu/api/publication/32529487 ID - 32529487 LA - English DB - MTMT ER - TY - CHAP AU - Csirik, János AU - Dósa, György AU - Kószó, Dávid ED - Sikora, Florian ED - Papadopoulos, George A. ED - Manolopoulos, Yannis ED - Kapoutsis, Christos ED - Herodotou, Herodotos ED - Dondi, Riccardo ED - Chatzigeorgiou, Alexander TI - Online Scheduling with Machine Cost and a Quadratic Objective Function T2 - SOFSEM 2020: Theory and Practice of Computer Science PB - Springer Netherlands CY - Cham SN - 9783030389185 T3 - Lecture Notes in Computer Science, ISSN 0302-9743 ; 12011. PY - 2020 SP - 199 EP - 210 PG - 12 DO - 10.1007/978-3-030-38919-2_17 UR - https://m2.mtmt.hu/api/publication/31671237 ID - 31671237 LA - English DB - MTMT ER - TY - JOUR AU - Urbán, Szabolcs AU - Sipka, Gábor AU - A., Balogh AU - Besenyi, Zsuzsanna AU - Csirik, János AU - Pávics, László TI - A new automated method for analysis of cerebrovascular reserve capacity deficiency by rCBF SPECT with acetazolamide test: Preliminary results JF - EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING J2 - EUR J NUCL MED MOL I VL - 47 PY - 2020 IS - Suppl. 1 SP - S401 EP - S402 SN - 1619-7070 UR - https://m2.mtmt.hu/api/publication/31631303 ID - 31631303 LA - English DB - MTMT ER - TY - JOUR AU - Dobó, András AU - Csirik, János TI - A Comprehensive Study of the Parameters in the Creation and Comparison of Feature Vectors in Distributional Semantic Models JF - JOURNAL OF QUANTITATIVE LINGUISTICS J2 - J QUANT LING VL - 27 PY - 2020 IS - 3 SP - 244 EP - 271 PG - 28 SN - 0929-6174 DO - 10.1080/09296174.2019.1570897 UR - https://m2.mtmt.hu/api/publication/30895390 ID - 30895390 LA - English DB - MTMT ER -