Претрага
249 items
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Preliminary regional landslide susceptibility assessment using limited data
Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...... landslide susceptibility model. Extraction of a particular land- slide conditioning parameter and repetition of the validation pro- cess is one approach to test model sensitivity (LEE & TALIB, 2005; GUZZETTI et al., 2006). Other approaches for testing the sensitivity of a particular landslide susceptibility ...
... proposed sensitivity coefficients is 2.125, whereas the minimum possible value of the WTLSR is 0.0525. Equations for calculation of the WTLSR used to test the TLSR models sensitivity are as follows: WLT-TLSR100 = LT-R*0.3 + SI-R*0.175 + AP-R*0.175 + EI-R*0.175 + LU-R*0.175 (2) WLT-TLSR500 = LT-R*0 ...
... lo g ia C ro a ti ca Geologia Croatica 72/190 Based on results presented in our research, it is obvious that there is also the possibility to test the sensitivity of landslide sus- ceptibility models in a simple, yet acceptable manner. The opti- mization of preliminary prepared models should always ...Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska. "Preliminary regional landslide susceptibility assessment using limited data" in Geologica Croatica , Croatian Geological Society (2019). https://doi.org/10.4154/gc.2019.03
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Using Lexical Resources for Irony and Sarcasm Classification
The paper presents a language dependent model for classification of statements into ironic and non-ironic. The model uses various language resources: morphological dictionaries, sentiment lexicon, lexicon of markers and a WordNet based ontology. This approach uses various features: antonymous pairs obtained using the reasoning rules over the Serbian WordNet ontology (R), antonymous pairs in which one member has positive sentiment polarity (PPR), polarity of positive sentiment words (PSP), ordered sequence of sentiment tags (OSA), Part-of-Speech tags of words (POS) ...... what if there was no evidence, he is guilty’, where un- derlined words belong to BCMS as well (not necessarily with the same meaning). In the example Testovi za AM, A1 I A2 kategoriju su vrhunska stvar koja može da ti se desi u životu, ‘Tests for AM, A1 and A2 category are the best thing that can happen ...
... Thus, annotators put each tweet into classes (BCMS, not_BCMS, ironic, non_ironic). Inter-annotator agreement was assessed using the Kripendorff α- test (Kalpha).7 Research by [17] about values of the Kalpha coeffi- cient showed that agreements whose values are α ≥ 0.667 can be considered reliable, and ...
... to sarcastic and non-sarcastic tweets was performed by the same linguistic experts and inter- annotator agreement, assessed using the Kripendorff α-test, achieved α = 0.86; we used, for further processing, those tweets which have been assessed by both annotators as either sarcastic or non-sarcastic; ...Miljana Mladenović, Cvetana Krstev, Jelena Mitrović, Ranka Stanković. "Using Lexical Resources for Irony and Sarcasm Classification" in Proceedings of the 8th Balkan Conference in Informatics (BCI '17), New York, NY, USA, : ACM (2017). https://doi.org/
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Using English Baits to Catch Serbian Multi-Word Terminology
In this paper we present the first results in bilingual terminology extraction. The hypothesis of our approach is that if for a source language domain terminology exists as well as a domain aligned corpus for a source and a target language, then it is possible to extract the terminology for a target language. Our approach relies on several resources and tools: aligned domain texts, domain terminology for a source language, a terminology extractor for a target language, and a ...aligned texts, word alignment, terminology extraction, electronic dictionaries, morphological inflection... T (term.extract), where (S(term.list) ∼ S(align.chunk)) ∧ (T (term.extract) ∼ T (align.chunk)) ∧ (S(align.chunk) ↔ T (align.chunk)). In order to test our approach and determine a threshold we have used the existing bi-lingual terminology resource in order to establish: • How many aligned chunks after ...
... in evaluations of translation quality. First we splitted corpus of aligned sentences into three disjoint parts: training (80%), development (10%) and test set (10%). BLEU score (Papineni et al., 2002) was obtained for the three different 3-gram language models. First model was trained only on the training ...
... trained on the training set extended with the bilingual list containing the general lexica list and the parallel list from SWN and PWN. BLEU score for the test set increased to 24.93. Third model was extended with the list of inflected forms as in the real experiment setting and BLEU score increased to 26.21 ...Cvetana Krstev, Branislava Šandrih, Ranka Stanković. "Using English Baits to Catch Serbian Multi-Word Terminology" in Proceedings of the 11th International Conference on Language Resources and Evaluation, LREC 2018, Miyazaki, Japan, May 7-12, 2018, European Language Resources Association (ELRA) (2018)
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Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala
Srđan B. Stanković (2016-09-11)Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...... koncentracije Fe(II) i Fe(III) u laboratoriji Univerziteta u Bangoru primenjen je ferozinski test, dok su u laboratoriji IMGGI primenjeni fenantrolinski i tiocijanatni test. 3.3.1 FEROZINSKI TEST Ferozinski test (Lovely and Philips, 1987) se koristi za određivanje koncentracije Fe(II) u uzorku. Da ...
... klasifikovane na osnovu serije biohemijskih testova. Pomoću ovih testova određivan je procenat fenotipske sličnosti među ispitivanim sojevima. Sojevi su svrstavani u istu vrstu ako je procenat sličnosti bio veći od 80 %. Međutim, čak i 100-200 biohemijskih testova pokriva samo 5-20 % ukupnog genetičkog ...
... ........................................52 3.3.1 Ferozinski test ............................................................................................................................. 52 3.3.2 Fenantrolinski i tiocijanatni test ............................................................. ...Srđan B. Stanković. "Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-11)
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Концепт расположивости при дефинисању ефикасног одржавања помоћне механизације на површинским коповима
Radiša D. Đurić (2016-05-30)Оцена расположивости представља основну компоненту уинжењерском управљању опремом. Расположивост је свеобухватни концепткоји представља меру употребног квалитета техничких система, који садржичитаву серију парцијалних индикатора који се односе на време у раду ивреме у отказу система као и на његову функционалну погодност. Овадисертација даје структурну анализу парцијалних индикатора као и развојмодела њихове синтезе на ниво расположивости. Поменути подаци имајухибридни карактер (измерени и експертски добијени) и њихова интеграцијаи синтеза је остварена коришћењем фази пропозиције и фази закључивања.Овакав приступ омогућава оцену техничког система ...управљање опремом, инжењерство одржавања,расположивост, фази закључивање, прикупљање података, булдозер... ln(𝜂) ⇒ 𝜂 = e−(𝑏𝑎) Колмогоров-Смирнов тест (K–С тест) је најчешћи метод за тестирање хипотезе успостављених закона дистрибуције. К-С тест је коришћен да дефинише да ли подаци о квару/застоју долазе из популације са одређеном расподелом. К-С тест врши поређење функције расподеле и теоријске функције ...
... јављају код најмањих релативних учесталости. Да би се у оцени ових одступања добила одређена сигурност, користе се тзв. статистички тестови, међу којима се највише користи тест Колмогоров- ПОЧЕТАК Полазни подаци ti i = 1,2, ... n Израчунавање t, σ, t50 t ≈ σ иλ(t) ≈ const t ≈ t50 Израчунавање λ(t) ...
... подручја, то не значи да је овако претпостављена расподела тачна, већ само да може бити задовољавајућа. Ово је обележје и свих других статистичких тестова, али се тест Колмогоров-Смирнова наводи као најприкладнији за употребу. Слика 2.16. Папир вероватноће за Вејбулову расподелу Докторска дисертација ...Radiša D. Đurić. "Концепт расположивости при дефинисању ефикасног одржавања помоћне механизације на површинским коповима" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-05-30)
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Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)
A groundwater flow model was developed to simulate groundwater extraction from the public water supply source of the City of Kikinda. The hydrodynamic model includes the municipal groundwater source of Kikinda (Šumice and the Jezero Well), but also an extended area where there are groundwater sources that provide water supply to three factories: (MSK, TM and LŽT - Kikinda). Hydrodynamic modeling, based on the numerical method of finite differences will show the groundwater balance of the sources in the ...... Vol. 18, No. 6, 551-561, 1980, http://dx.doi.org/10.1111/j.1745-6584.1980.tb03649.x 25. Thierrin, J., Davis G. B., and Baber C., A Ground-water Tracer Test with Deuterated Compounds for Monitoring in situ Biodegresation and Retardation of Aromatic Hydrocarbons, Ground Water, Vol. 33, No. 3, 469-475 ...
... finer than it or using another words, 10%, 50% and 60% of the sample by weight is smaller than diameter d10, d50 and d60). According to pumping test data, the transmissibility coefficient in the extended area of Kikinda, depending on the locality in question, is in the range of (2.5-10) × 10-2 ...Dušan Polomčić, Dragoljub Bajić, Jelena Zarić. "Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)" in Journal of Sustainable Development of Energy, Water and Environment Systems (2015). https://doi.org/10.13044/j.sdewes.2015.03.0017
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Frequency and Length of Syllables in Serbian
Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová (2019)Basic analyses of several properties of syllables (the rank-frequency distribution, the distribution of length, and the relation between length and frequency) in Serbian is presented. The syllabification algorithm used combines the maximum onset principle and the sonority hierarchy. Results indicate that syllables behave similarly to words as far as mathematical models are concerned, but values of parameters in models for syllables are quite different from those for words.... goodness-of-fit of a model is evaluated in terms of the discrepancy coefficient 𝐶 = 𝜒 /𝑁, where 𝜒 is the value of the test statistic from the Pearson 𝜒 goodness-of-fit test and 𝑁 is the sample size. As a rule of thumb, the fit is considered satisfactory if 𝐶 < 0.02 (Mačutek & Wimmer, 2013) ...Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová. "Frequency and Length of Syllables in Serbian" in Glottometrics (2019)
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Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia
We have developed a technique to calculate lateral density distribution of the sedimentary basin basement by combining linear gravity–density inversion and 2D forward modeling. The procedure requires gravity anomaly data, depth-to-basement data and density data for the sediments (density–depth distribution). Gravity efect of density variations in the basement was extracted from the total gravity anomaly by removing the joint efect of the sediments with vertical density variations and homogeneous basement of average density contrast (calculated by 2D modeling). Gravity ...Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić. "Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia" in Acta Geophysica, Springer (2019). https://doi.org/10.1007/s11600-019-00328-9
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The effect of finite driving rate on avalanche distributions
Statistics, Probability and Uncertainty,Statistics and Probability,Statistical and Nonlinear PhysicsSonja Radić, Sanja Janićević, Dragutin Jovković, Đorđe Spasojević. "The effect of finite driving rate on avalanche distributions" in Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing (2021). https://doi.org/10.1088/1742-5468/ac1f12
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Centar za hidrogeologiju karsta - 15 godina nauke i struke
... definition of sanitary protection zones Project of detailed hydrogeological investigation of Zarudie (Sjenica municipality) karst groundwater Tracer test at the Babine Plateau during hydrogeological source Jor .th.e. assessment of groungiwater Tesources investigation of karst spring Seljašnica and ...
... depth of 100- 15 CKH fluolampa, zaštitna odela, etaloni i ostala prateća oprema). Opit bojenja procurivanja ispod brane Višegrad (B&H) Tracer test, Višegrad dam (B&H) Ispitivanje kvaliteta vode in-situ CHK je opremljen savremenim uređajima za ispitivanje fizičko-hemijskih parametara vode ...
... days. Groundwater dye tracing test One of the important methods in the karst groundwater research and groundwater direction movement and speed, and therefore the development of the karst aquifer, is dye tracing tests of groundwater flow. The most common dye tracer used by CKH experts is Na-fluorescein ...urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović. Centar za hidrogeologiju karsta - 15 godina nauke i struke, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, Centar za hidrogeologiju karsta, 2023
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Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)
Ljiljana Vasić, Saša Milanović, Zoran Stevanović, Laszlo Palcsu. "Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-020-00550-3
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Coupling of artificial intelligence methods in the development of hybrid intelligent systems
In this paper we present an approach which couples various artificial intelligence (AI) methods in the solution of complex problems that cannot adequately be solved by a single AI method. We argue that the resulting, hybrid intelligent systems (HIS) can be successfully implemented with the use of available AI software libraries. Different coupling methods are analyzed and a classification of hybrid systems based on the chosen method is given. Two case studies of hybrid systems used in mining engineering ...hibridni inteligentni sistemi, spregnuti sistemi, metode veštačke inteligencije, rudarske primene veštačke inteligencije... engineering practice will be used for building its knowledge base. The reliability of results obtained by the proposed hybrid system was tested on a test set, and the resulting correlation coefficient was 0.88, which means that the prediction accuracy is satisfactory. 5. Concluding remarks Hybrid ...Ranka Stanković, Ivan Obradović, Nikola Lilić. "Coupling of artificial intelligence methods in the development of hybrid intelligent systems" in X Kongres Matematičara, Matematički fakultet, Beograd (2001)
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Concepts for Improving Machine Learning Based Landslide Assessment
Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić. "Concepts for Improving Machine Learning Based Landslide Assessment" in Natural Hazards GIS-based Spatial Modeling Using Data Mining Techniques, Advances in Natural and Technological Hazards Research, volume 48, Springer Nature Switzerland AG 2019 (2019). https://doi.org/10.1007/978-3-319-73383-8_2
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Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije
Jana S. Stojković (2013-09-25)Mineralne vode još od davnina privlače pažnju ljudi i to kako u pogledu istraživanja iproučavanja, tako i u pogledu njihovog iskorišćavanja. Naročito je važno poznavanjesadržaja mikroelemenata u njima, jer su to komponente njihovog hemijskog sastavakoje ih odvajaju od tzv. „običnih“ malomineralizovanih voda.U ovom radu proučavani su odabrani esencijalni mikroelementi (fluor, bor, litijum,kalijum, stroncijum i silicijum), u mineralnim vodama Srbije, pri čemu je analiziranopreko 130 uzoraka mineralnih voda iz različitih geoloških sredina, to jest hidrogeološkihrejona. Cilj ovog istraživanja bio je ...esencijalni mikroelementi, faktori migracije, zakonomernosti rasprostranjenja, hidrogeohemijski procesi, multivarijantna statistička analiza, mineralne vode Srbije... faktorne analize moguća. Pored proračuna vrednosti KMO, rađen je i Bartletov test, kojim se proverava da li su analizirane varijable u zadovoljavajućoj meri međusobno korelisane (Field 2005). Utvrđeno je da je test statistički značajan (p<0,05), pa se usvaja pretpostavka da je korelisanost varijabli ...
... kriterijum, Katelov grafički test odrona i kumulativni procenat varijanse. Kajzerov kriterijum (Kaiser 1960) nalaže da se zadrže samo oni faktori čija je tzv. svojstvena vrednost (karakteristična vrednost korelacione matrice ili eigenvalue) veća od 1. Katelov grafički test odrona (Cattell’s scree plot) ...
... Doktorska disertacija 108 Primenom analize varijanse (ANOVA, (Scheffé 1959)), za transformisane podatke, kao i primenom neparametarskih testova (Kruškal-Volisov test, (Kruskal and Wallis 1952)), za sirove podatke, ustanovljeno je da se izdvojene grupe, odnosno podgrupe, statistički značajno razlikuju ...Jana S. Stojković. "Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-09-25)
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Influence of Initial Treatment on the Survival and Recurrence in Patients With Differentiated Thyroid Microcarcinoma
... Germany) (normal Tg levels was considered as G5 Hg/L and G1.00 ng/mL, respectively). Statistical Analysis The W2 test was used to analyze variables. The Kaplan-Meier method and log-rank test were used to calculate time-dependent variables using statistical software SPSS version 8 (SPSS Inc, Chicago, IL) ...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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Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation
kontinentalna tektonika: kompresija, kontinentalna tektonika: ekstenzija, kontinentalna tektonika: transkurentni i transformni rasedi, pukotine, rasedi, zone snažnih deformacija, kinematika deformacija kore i omotača, teorijska mehanika, modelovanje... L I C AT I O N : S T R A I N T Y P E F O R RO TAT I N G E L E M E N T S U N D E R D I F F E R E N T T Y P E S O F D E F O R M AT I O N As a first test, we apply our strain type classification to individual square elements that we deform using a constant incremental deformation gradient Fi , ranging ...
... expected, no effect on the derived strain characterization. 4 A P P L I C AT I O N : S Y N T H E T I C RO TAT I N G S H E A R Z O N E In the following test we define a shear zone (simple shear) that we rotate at the same time, to check whether our methods consistently determine the deformation as strike-slip ...
... stretches with different magnitude, but the same sign. 3 APPLICATION: STRAIN TYPE FOR ROTATING ELEMENTS UNDER DIFFERENT TYPES OF DEFORMATION As a first test, we apply our strain type classification to individual square elements that we deform using a constant incremental deformation gradient F’, ranging ...Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer. "Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation" in Geophysical Journal International, Oxford University Press (OUP) (2021). https://doi.org/10.1093/gji/ggab120
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Пројекат ПРИЗМА: Карактеризација и технолошки поступци за рециклажу и поновну употребу флотацијске јаловине рудника „Рудник“
Владимир Симић, Стефан Петровић, Филип Арнаут, Весна Цветков, Милена Костовић, Драган Радуловић, Јовица Стојановић, Владимир Јовановић, Дејан Тодоровић, Нина Николић, Јелена Сенћански, Грозданка Богдановић, Драгана Мариловић (2024)Владимир Симић, Стефан Петровић, Филип Арнаут, Весна Цветков, Милена Костовић, Драган Радуловић, Јовица Стојановић, Владимир Јовановић, Дејан Тодоровић, Нина Николић, Јелена Сенћански, Грозданка Богдановић, Драгана Мариловић. "Пројекат ПРИЗМА: Карактеризација и технолошки поступци за рециклажу и поновну употребу флотацијске јаловине рудника „Рудник“" in Записници Српског геолошког друштва, Београд : Српско геолошко друштво (2024)
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Two approaches to compilation of bilingual multi-word terminology lists from lexical resources
In this paper, we present two approaches and the implemented system for bilingual terminology extraction that rely on an aligned bilingual domain corpus, a terminology extractor for a target language, and a tool for chunk alignment. The two approaches differ in the way terminology for the source language is obtained: the first relies on an existing domain terminology lexicon, while the second one uses a term extraction tool. For both approaches, four experiments were performed with two parameters being ...Branislava Šandrih, Cvetana Krstev, Ranka Stanković. "Two approaches to compilation of bilingual multi-word terminology lists from lexical resources" in Natural Language Engineering, Cambridge University Press (CUP) (2020). https://doi.org/10.1017/S1351324919000615
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Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit
... ) by 1% , the rock mass oscillation velocity Vv will decrease (increase) by approximately n% [5]. The Sadovskii equation is determined based on test blasting for the concrete working environment. 3.1 Rock mass oscillation velocity equation derivation The equation of Sadovskii was derived from ...Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac. "Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia, Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Towards Semantic Interoperability: Parallel Corpora as Linked Data Incorporating Named Entity Linking
U radu se prikazuju rezultati istraživanja vezanih za pripremu paralelnih korpusa, fokusirajući se na transformaciju u RDF grafove koristeći NLP Interchange Format (NIF) za lingvističku anotaciju. Pružamo pregled paralelnog korpusa koji je korišćen u ovom studijskom slučaju, kao i proces označavanja delova govora, lematizacije i prepoznavanja imenovanih entiteta (NER). Zatim opisujemo povezivanje imenovanih entiteta (NEL), konverziju podataka u RDF, i uključivanje NIF anotacija. Proizvedene NIF datoteke su evaluirane kroz istraživanje triplestore-a korišćenjem SPARQL upita. Na kraju, razmatra se povezivanje Linked ...paralelni korpusi, povezivanje imenovanih entiteta, prepoznavanje imenovanih entiteta, NER, NEL, povezani podaci, NIF, VikipodaciRanka Stanković, Milica Ikonić Nešić, Olja Perisic, Mihailo Škorić, Olivera Kitanović. "Towards Semantic Interoperability: Parallel Corpora as Linked Data Incorporating Named Entity Linking" in Proceedings of the 9th Workshop on Linked Data in Linguistics @ LREC-COLING 2024, Turin, 20-25 May 2024, ELRA and ICCL (2024)