TY - JOUR AU - Tisza, Dávid AU - Oláh, András AU - Levendovszky, János TI - Multi-user detection using non-parametric Bayesian estimation by feed forward neural networks JF - TELECOMMUNICATION SYSTEMS J2 - TELECOMMUN SYST VL - 63 PY - 2016 IS - 1 SP - 65 EP - 75 PG - 11 SN - 1018-4864 DO - 10.1007/s11235-015-9973-0 UR - https://m2.mtmt.hu/api/publication/2860443 ID - 2860443 LA - English DB - MTMT ER - TY - JOUR AU - Novák, Borbála AU - Novák, Attila AU - Prószéky, Gábor TI - Context-aware correction of spelling errors in Hungarian medical documents JF - COMPUTER SPEECH AND LANGUAGE J2 - COMPUT SPEECH LANG VL - 35 PY - 2016 SP - 219 EP - 233 PG - 15 SN - 0885-2308 DO - 10.1016/j.csl.2014.09.001 UR - https://m2.mtmt.hu/api/publication/2844131 ID - 2844131 AB - Abstract Owing to the growing need of acquiring medical data from clinical records, processing such documents is an important topic in natural language processing (NLP). However, for general NLP methods to work, a proper, normalized input is required. Otherwise the system is overwhelmed by the unusually high amount of noise generally characteristic of this kind of text. The different types of this noise originate from non-standard language use: short fragments instead of proper sentences, usage of Latin words, many acronyms and very frequent misspellings. In this paper, a method is described for the automated correction of spelling errors in Hungarian clinical records. First, a word-based algorithm was implemented to generate a ranked list of correction candidates for word forms regarded as incorrect. Second, the problem of spelling correction was modelled as a translation task, where the source language is the erroneous text and the target language is the corrected one. A Statistical Machine Translation (SMT) decoder performed the task of error correction. Since no orthographically correct proofread text from this domain is available, we could not use such a corpus for training the system. Instead, the word-based system was used to create translation models. In addition, a 3-gram token-based language model was used to model lexical context. Due to the high number of abbreviations and acronyms in the texts, the behaviour of these abbreviated forms was further examined both in the case of the context-unaware word-based and the SMT-decoder-based implementations. The results show that the SMT-based method outperforms the first candidate accuracy of the word-based ranking system. However, the normalization of abbreviations should be handled as a separate task. LA - English DB - MTMT ER - TY - CHAP AU - László, Endre AU - Nagy, Zoltán AU - Giles, MB AU - Reguly, István Zoltán AU - Appleyard, J AU - Szolgay, Péter ED - IEEE, . TI - Analysis of parallel processor architectures for the solution of the Black-Scholes PDE T2 - IEEE International Symposium on Circuits and Systems, ISCAS 2015 PB - IEEE CY - New York, New York SN - 9781479983919 T3 - Proceedings - IEEE International Symposium on Circuits and Systems, ISSN 0271-4310 ; 2015-July. PY - 2015 SP - 1977 EP - 1980 PG - 4 DO - 10.1109/ISCAS.2015.7169062 UR - https://m2.mtmt.hu/api/publication/2978490 ID - 2978490 LA - English DB - MTMT ER - TY - CHAP AU - Novák, Borbála AU - Novák, Attila ED - Tanács, Attila ED - Varga, Viktor ED - Vincze, Veronika TI - Nem felügyelt módszerek alkalmazása releváns kifejezések azonosítására és csoportosítására klinikai dokumentumokban T2 - XI. Magyar Számítógépes Nyelvészeti Konferencia : MSZNY 2015 PB - Szegedi Tudományegyetem Informatikai Tanszékcsoport CY - Szeged SN - 9789633063590 PY - 2015 SP - 237 EP - 248 PG - 12 UR - https://m2.mtmt.hu/api/publication/2975394 ID - 2975394 LA - Hungarian DB - MTMT ER - TY - THES AU - Gergelyi, Domonkos TI - Compressed sensing in FET based terahertz imaging PB - Pázmány Péter Katolikus Egyetem (PPKE) PY - 2015 SP - 84 DO - 10.15774/PPKE.ITK.2015.006 UR - https://m2.mtmt.hu/api/publication/2971415 ID - 2971415 LA - English DB - MTMT ER - TY - THES AU - Novák, Borbála TI - Methods for processing noisy texts and their application to Hungarian clinical notes PB - Pázmány Péter Katolikus Egyetem (PPKE) PY - 2015 SP - 105 DO - 10.5774/PPKE.ITK.2015.012 UR - https://m2.mtmt.hu/api/publication/2971393 ID - 2971393 LA - English DB - MTMT ER - TY - THES AU - Körtvélyes, Judit TI - Electrophysiological Characterization of the Amblyopic Neural Deficit PB - Pázmány Péter Katolikus Egyetem (PPKE) PY - 2015 SP - 81 DO - 10.15774/PPKE.ITK.2015.009 UR - https://m2.mtmt.hu/api/publication/2971267 ID - 2971267 N1 - DOI:10.15774/PPKE.ITK.2015.009 LA - English DB - MTMT ER - TY - CHAP AU - Novák, Borbála AU - Novák, Attila ED - Kevin, Bretonnel Cohen ED - Diana, Demner-Fushman ED - Sophia, Ananiadou ED - Jun-ichi, Tsujii TI - Restoring the intended structure of Hungarian ophthalmology documents T2 - Proceedings of the BioNLP 2015 Workshop on Biomedical Natural Language Processing PB - Association for Computational Linguistics (ACL) CY - Beijing SN - 9781932432664 PY - 2015 SP - 152 EP - 157 PG - 6 UR - https://m2.mtmt.hu/api/publication/2971262 ID - 2971262 LA - English DB - MTMT ER - TY - THES AU - Józsa, Csaba Máté TI - Design and Implementation of High-Performance Computing Algorithms for Wireless MIMO Communications PB - Pázmány Péter Katolikus Egyetem (PPKE) PY - 2015 SP - 149 DO - 10.15774/PPKE.ITK.2015.010 UR - https://m2.mtmt.hu/api/publication/2971245 ID - 2971245 N1 - DOI:10.15774/PPKE.ITK.2015.010 LA - English DB - MTMT ER - TY - THES AU - Tuza, Zoltán András TI - Structural Analysis of Kinetic Systems with Application to Cell-free PB - Pázmány Péter Katolikus Egyetem (PPKE) PY - 2015 SP - 111 DO - 10.15774/PPKE.ITK.2015.008 UR - https://m2.mtmt.hu/api/publication/2971236 ID - 2971236 N1 - DOI:10.15774/PPKE.ITK.2015.008 LA - English DB - MTMT ER -