Претрага
449 items
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Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names
In this paper we present a rule- and lexicon-based system for the recognition of Named Entities (NE) in Serbian news paper texts that was used to prepare a gold standard annotated with personal names. It was further used to prepare training sets for four different levels of annota tion, which were further used to train two Named Entity Recognition (NER) sys tems: Stanford and spaCy. All obtained models, together with a rule- and lexicon based system were evaluated on ...... uments. It is designed for structured annotation, allowing embedded annotations, which are espe- cially convenient for NER. Annotations are ex- ternal, so for each text file, an additional annota- tion file contains annotation data described in Sec- tion 4. CoNLL02 is a two-column format, also described ...Branislava Šandrih, Cvetana Krstev, Ranka Stanković. "Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names" in Proceedings - Natural Language Processing in a Deep Learning World, Incoma Ltd., Shoumen, Bulgaria (2019). https://doi.org/10.26615/978-954-452-056-4_122
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2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem
... Belgrade locality but can be used with some reserves, organic waste boasts a maximum of household waste with 43%, but that waste is biodegradable so it is not accounted for in the “Ada Huja” case. This is also true for paper and paper- 72 Sretenović B., Arnaut F., Vasiljević I., Cvetkov V. ...Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov. "2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem" in Podzemni radovi, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/PodRad1934059S
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Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)
Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD... Arsenopyrite can incorporate significant amounts of metal ions, such as gold, cobalt, and nickel, either accommodated in the crystal structure in a solid so- lution or as micro-inclusions [2,3]. In particular, the ability of the Au incorporation renders arsenopyrite an economically relevant ore mineral ...Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik. "Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)" in Crystals, MDPI AG (2023). https://doi.org/10.3390/cryst13020278
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Integrative GHG Assessment in Oil and Gas Industry
Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...... developing and implementing. effective abatemcnt strategies for gas utilization, such as rcinjection or conversion to powecr 58 generation. By doing so, companies can reduce their GHG emissions and minimize thcir environmental impact, while also benefiting from incrcased energy efficicncy and cost ...Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa. "Integrative GHG Assessment in Oil and Gas Industry" in Energija, ekonomija, ekologija (2023). https://doi.org/10.46793/EEE23-1.51M
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Upravljanje resursima podzemnih voda severne Bačke
Bojan B. Hajdin (2013-03-07)Vodosnabdevanje gradova i naselja severne Bačke vrši se u potpunosti iskorišćavanjempodzemnih voda. Najznačajnije količine podzemne vode namenjene za piće zahvatajuse iz izdani u vodonosnim pleistocenskim naslagama koje su poznate kao osnovnivodonosni kompleks, dok su danas u vodosnabdevanju manje zastupljene vode izizdani u pliocenskim sedimentima i prve, slobodne izdani rasprostranjene plitko ispodpovršine terena.Pored snabdevanja stanovništva, veliki potrošači podzemne vode su i industrijskapreduzeća, a zbog loših uslova i nerazvijenih sistema za navodnjavanje sve veći korisnicivoda prve izdani postaju i poljoprivredni proizvođači.Geološka ...resursi podzemnih voda, vodosnabdevanje, održivo upravljanje, osnovni vodonosni kompleks, termomineralne vode, monitoring podzemnih... hidrogena zemljišta, stvorena pod dejstvom oscilacija podzemnih voda, odnosno kao posledica uzlaznog i silaznog kretanja soli. Slani zemljišni pokrov sadrži koncentrat soli do zasićenja. 6.3. Tektonika terena Proučavanjem tektonskih karakteristika ovog dela Panonskog basena bavio se veliki ...
... materije poreklom iz šećerana, klanca i industrija mesa, stočnih farmi. Pored ovih, nalaze se i druge različite vrste zagađujućih materija: neorganske soli, kiseline i baze, organske materije, suspendovane materije, boje, toksične materije, mikroorganizme, radioaktivne materije, tople vode i dr. ...
... resursima podzemnih voda severne Bačke MANAGEMENT OF GROUNDWATER RESOURCES OF NORTHERN BAČKA Abstract Groundwater reservoirs are the sole resource for community water supplies in northern Bačka. Groundwater from Pleistocene water-bearing strata, or the principal composite Pleistocene ...Bojan B. Hajdin. "Upravljanje resursima podzemnih voda severne Bačke" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-03-07)
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Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)
... concerns both Variscan and Alpine tectonics in the SMM, the names of the tectonic units discussed below only refer to the later (i.e. Alpine) tectonics so that results presented here could be correlated with the previously published tec- tonic frameworks of south-eastern Europe. The Supragetic nappe ...
... covite schists in the northern part of Vlasina Unit (22%757.756”E, 42%3/43.306"N). Size of the head of hammer 136 mm. c Fan- ning axial-plane cleavage So in the chlorite schists in the northern part of Vlasina Unit (22%18/15.775”E, 42%48'!21.52”N). Size of pen 152 mm. d Initial foliation S; folded in ...
... 9JEp UPouT pojuStoAi u SI 9Bp OUn) poseo|oj IV e % OS< ueds jeu} sdojs Suneou snonSmuoo g< 'o'! *neoje|d „J *SoloS SO{OA, UIO)JSESI SA/7 *opuo{quiou /q// *93nOTq Jg *931AOOSsnur 57JA/ :(O1(C) SUPAH pue /AoujruAA O} BUIpIO00P po}PIAOIqqe SOUIDU ...Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Richard Spikings, Andreas Wetzel. "Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)" in International Journal of Earth Sciences, Springer Science and Business Media LLC (2016). https://doi.org/10.1007/s00531-016-1380-6
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Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)
Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...... Geological Society 1. INTRODUCTION Since the early pioneering work of e.g. ROYDEN et al. (1983) and HORVÁTH (1984), the following thirty years or so have seen publication of a lot of papers concerning the origin and evolution of the Pannonian Basin (PB) and its marginal parts e.g. TARI & PAMIĆ ...
... movements of the faults separating the lo- cal blocks. In the previous studies (e.g. LASKAREV, 1931) the existence of a large linear structure, the so-called the Rakovica fault was noticed which locally separates the Torlak horst from the trough, which STEVANOVIĆ (1951) distinguishes as the Beli ...Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić. "Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)" in Geologia Croatica (2019). https://doi.org/10.4154/gc.2019.11
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Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia
... Geographical position of study area (red poly- gon) within North Macedonia; (c) The geographical position of North Macedonia Elevation (m) BB so- 250 [ 250 - 5oo [Z soo - 750 [___] 750 - 1000 [___] tooo - 1250 [ 1250 - 1500 [O 500 - 1750 BIB - 50 D Testing area [___] Training area ...
... higher likelihood of predicting the ophiolite class in comparison to the RF models, with the former being approximately three times more likely to do so. Specifically, the maximum probability of ophiolite class prediction for the RF models is approximately 2.9%, while that for the KNN models is ...Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski. "Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia" in Earth Science Informatics, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s12145-024-01243-4
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Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics
Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić. "Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics" in Minerals, MDPI AG (2024). https://doi.org/10.3390/min14050511
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Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine
Lazar M. Kaluđerović (2018-01-17)fikasnost prilikom sorpcije S-metolahlora i klomazona od strane neorganskih iorganski modifikovanih montmorionita sa lokaliteta Bogovina odreĎena je metodombach adsorpcije. Uzorci montmorionita su tretirani prvo rastvorom NaCl a zatim irazličitim koncentracijama organskih kompleksa. Adsorpcione izoterme su dobijenetretiranjem uzoraka različitim koncentracijama herbicida. Detaljna mineraloškakarakterizacija uzoraka uraĎena je metodom rendgenske difrakcije. Rezultati interakcijemontmorionita sa organskim kompleksima i herbicidima dobijeni su primenomrendgenskih, optičkih, termičkih i spektroskopskih metoda.Na osnovu rezultata rendgenskih ispitivanja uzoraka, utvrĎeno je prisustvoorganskih kompleksa i herbicida u meĎuslojnom prostoru montmorionita.Montmorioniti modifikovani ...adsorpcija, montmorionit, heksadeciltrimetilamonijum bromid,feniltrimetilamonijum hlorid, S-metolahlor, klomazon... u hidrofobnu su takoĎe ispitivani (Jordan, 1949). Organofilni bentoniti su pripremani reakcijom bentonita sa različitim alifatičnim amonijumovim solima. Ustanovljeno je da stepen zasićenja moţe da zavisi od: 1) stepena prekrivenosti površine organskim katjonima 2) stepena zasićenja kapaciteta katjonske ...
... nekoliko metoda neorganskih modifikacija sa katjonima poput Ca2+, Na+, Li+, NH4 +, itd. Modifikacija u Na-montmorinit moguća je upotrebom različitih Na soli (Na2CO3, NaOH, Na3PO4, NaF) (Zhang et al., 2011), ali najčeša je upotreba 1M rastvora NaCl (Nasser et al., 1997; Tomić et al., 2012; Tomić et al. ...Lazar M. Kaluđerović. "Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-01-17)
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Optimizacija dužine strele rotornih bagera u funkciji stabilnosti kosina i efektivnosti rada na površinskim kopovima lignita Srbije
Branko M. Petrović (2016-07-12)Rotorni bageri su mašine koje se u današnje vreme najviše primenjuju uprocesu masovne eksploatacije uglja zahvaljujući, pre svega, nizu tehničkoeksploatacionihprednosti u odnosu na druge vrste bagera. Raznovrsnirudarsko-tehnički zahtevi otkopavanja doprineli su razvoju nekoliko tipova ovihmašina, tako da svaki od njih ima svoje prednosti i nedostatke u odnosu nadrugi tip.Predmet istraživanja u disertaciji odnosi se na izbor optimalnekonstrukcije strele bagera i njene usaglašenosti sa uslovima radne sredine kojiće vladati na površinskim kopovima lignita Srbije, imajući u vidu složene usloveeksploatacije (velika ...površinski kop, parametri bloka, kapacitet, rotorni bager, strelabagera, geomehanika, stabilnost kosina, ekonomija... over other types of excavators. A variety of mining and technical mining requirements contributed to development of several types of these machines, so that each of them has its advantages and disadvantages compared to other type. The subject of the thesis relates to the selection of the optimal ...
... i bolje kapacitetno iskorišćenje bagera. Tehnološki parametri odreska (Slika 3.18.) su: h - visina odreska koja odgovara visini reza (m); So - debljina odreska koja je u funkciji ugla okretanja strele bagera u odnosu na podužnu osu bagera (ϕ) i ugla rezanja (ρ) (m); b - širina odreska ...
... okretanja strele bagera u odnosu na podužnu osu bagera (ϕ). b S0 h r Slika 3.18. - Tehnološki parametri odreska Debljina odreska (So) koja je jednaka debljini reza, se ostvaruje pomeranjem bagera na početku ulaska u novi rez, odnosno, kada je strela rotora u krajnjim položajima ...Branko M. Petrović. "Optimizacija dužine strele rotornih bagera u funkciji stabilnosti kosina i efektivnosti rada na površinskim kopovima lignita Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-07-12)
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Arsenic in tape waters of the south Pannonian basin (Serbia) and arsenic risk assessment
Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)... in groundwater of the test area sug- gests a reducing medium that creates favorable conditions for arsenic migration in groundwater. Due to the low solu- bility of iron oxides, hydroxides, and carbonates in ground- water, their concentrations in groundwater were found to be rather low. The iron concentration ...Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić. "Arsenic in tape waters of the south Pannonian basin (Serbia) and arsenic risk assessment" in Polish Journal of Enivronmental Studies 21 no. 6, Olsztyn, Poland : Polish Journal of Enivronmental Studies (2012): 1783-1790
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Influence of Initial Treatment on the Survival and Recurrence in Patients With Differentiated Thyroid Microcarcinoma
... patients with thyroid microcarcinoma. Cancer. 1999;86:842Y849. 10. Hazard JB. Small papillary carcinoma of the thyroid: a study with special refer- ence to so-called nonencapsulated sclerosing tumor. Lab Invest. 1960;9:86Y97. 11. Mc Conahey WM, Hay ID, Woolner LB, et al. Papillary thyroid cancer treated at ...Jasna Mihailović, Ljubomir Stefanović, Ranka Stanković. "Influence of Initial Treatment on the Survival and Recurrence in Patients With Differentiated Thyroid Microcarcinoma" in Clinical Nuclear Medicine, Lippincott Williams & Wilkins (2013). https://doi.org/10.1097/RLU.0b013e3182872ed2
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Dosadašnja saznanja o bijelim boksitima na prostoru Crne Gore
Mia Jovanović, Slobodan Radusinović, Vladimir Simić. "Dosadašnja saznanja o bijelim boksitima na prostoru Crne Gore" in Geološki glasnik (2023)
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Towards the semantic annotation of SR-ELEXIS corpus: Insights into Multiword Expressions and Named Entities
Овај рад представља активности на развоју корпуса ELEXIS-sr, српском додатку вишејезичном анотираном корпусу ELEXIS-а, који се састоји од семантичких анотација и репозиторија значења речи. ELEXIS је паралелни вишејезични анотирани корпус на десет европских језика, који може да се користи као вишејезички репер за евалуацију европских језика са мање и средње развијеним ресурсима. Фокус овог рада је на вишечланим изразима и именованим ентитетима, њиховом препознавању у скупу реченица ELEXIS-sr и поређењу са анотацијама на другим језицима. Разматрају се први кораци ...Cvetana Krstev, Ranka Stanković, Aleksandra Marković, Teodora Mihajlov. "Towards the semantic annotation of SR-ELEXIS corpus: Insights into Multiword Expressions and Named Entities" in Proceedings of the Joint Workshop on Multiword Expressions and Universal Dependencies (MWE-UD) @ LREC-COLING 2024, Turin, May 25, 2024, ELRA and ICCL (2024)
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Developing Termbases for Expert Terminology under the TBX Standard
... [18]. The system of morphological dictionaries for Serbian, both of sim- ple and compound words has been developed over a very long period, follows the so-called DELA format [8]. The DELAS dictionaries of simple words have reached a very high level of coverage of Serbian, while the DELAC dictionaries of ...
... the sub-tree to be exported. Then, positioned on this node he/she invokes the export wizard and selects the export options [14]. This feature is not so far implemented for GeollSSTerm. r > (5h Izvoz reénika _ . ee®@ (= |S eal BEGYEAD ower == = Sei {Direktni potomci bez korenog évora ] Koreni pojam pO ...
... existing lexical resources to maximize efficiency. Terms extracted from corpora and subsequently translated should be channeled into the company termbase, so that they can be leveraged for other purposes. Acknowledgments. This research was supported by the Serbian Ministry of Education and Science under the ...Ranka Stanković, Ivan Obradović, and Miloš Utvić. "Developing Termbases for Expert Terminology under the TBX Standard" in Natural Language Processing for Serbian - Resources and Applications, Belgrade : University of Belgrade, Faculty of Mathematics (2014)
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Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia
Dušan Polomčić, Bojan Hajdin, Zoran Stevanović, Dragoljub Bajić, Katarina Hajdin. "Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia" in Hydrogeology Journal, Berlin, Heidelberg : Springer, International Association of Hydrogeologists (2013). https://doi.org/10.1007/s10040-013-1025-9
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Contribution to the geotechnical classification of municipal waste landfills in Serbia
Management, Monitoring, Policy and Law, Nature and Landscape Conservation, Geochemistry and Petrology, Waste Management and Disposal,Geotechnical Engineering and Engineering Geology,Water Science and Technology,Environmental Chemistry,Environmental EngineeringDragoslav Rakić, Irena Basarić, Laslo Čaki, Slobodan Ćorić. "Contribution to the geotechnical classification of municipal waste landfills in Serbia" in Environmental Geotechnics, Thomas Telford Ltd. (2018). https://doi.org/10.1680/jenge.18.00028
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Extraction of Bilingual Terminology Using Graphs, Dictionaries and GIZA++
Branislava Šandrih, Ranka Stanković (2020)U nauci, industriji i mnogim istraživačkim oblastima, terminologija se brzo razvija. Najčešće, jezik koji je „lingua franca“ za većinu ovih oblasti je engleski. Kao posledica toga, za mnoga polja termini domena su koncipirani na engleskom, a kasnije se prevode na druge jezike. U ovom radu predstavljamo pristup za automatsko izdvajanje dvojezične terminologije za englesko-srpski jezički par koji se oslanja na usaglašeni dvojezični korpus domena, ekstraktor terminologije za ciljni jezik i alat za usklađivanje delova. Ispitujemo performanse metode na domenu ...... module is displayed in Figure 3. Figure 3. Input module of the BiLTe Web application Alignment and Post-Processing Module Aligning with GIZA++ yields a so called “phrase-table”. The alignment works in the following way. GIZA++ reads the two input texts in parallel. Whenever two bilingual chunks appear ...Branislava Šandrih, Ranka Stanković. "Extraction of Bilingual Terminology Using Graphs, Dictionaries and GIZA++" in Infotheca, Faculty of Philology, University of Belgrade (2020). https://doi.org/10.18485/infotheca.2019.19.2.6
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BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations
Geology explorations in KCM runs from 1936. year up to these days and still ongoing. Results in >7,200 drill holes with ≈600,000 m of core drilling and gave lignite ore resources of > 4,1Bt, which 1,15Bt are excavated since 1986. of XIX up to early years of XXI century. For further mining operations in open pits stay 1,5Bt of lignite. Under waste heaps are ≈80 km2, additional 85 km2 should be filled. All of that masses/areas were, are ...Bojan Dimitrijević, Bogoljub Vučković, Radmila Gaćina. "BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations" in 17th International Conference of the open and underwater mining of minerals, Sts. Constantine and Helena Resort, Varna, 18-22 September, Bulgaria, Sofia, Bulgaria : Scientific and Technical Union of Mining, Geology and Metallurgy, (2023)