5 research outputs found
What Makes Sense? : Searching for Strong WSD Predictors in Croatian
The goal of this research was to investigate and determine position of strong predictors for word sense disambiguation of Croatian nouns. Research was conducted using supervised learning methods and a corpus of around 70 million words. We have concluded that words in the immediate vicinity of an observed lexeme (1-5 words left and right) have the highest discriminative power. We have also measured the applicability and accuracy of the one-sense-per-discourse method and found it to be very successful as well as the impact of sentence boundaries which proved not to be a good criterion for selecting strong predictors
Evaluation of the method of calculating the planned price of timber harvesting operations
Rad se bavi prikazom metode izraÄuna planskih cijena pridobivanja drva, koje su predmet javnih nadmetanja u Å umsko gospodarskom druÅ”tvu Ā»Hercegbosanske Å”umeĀ« d.o.o. Kupres te analizom odstupanja planskih od ugovorenih/ostvarenih cijena usluga pridobivanja drva za 97 grupa odjela, koji su bili predmet javnih natjeÄaja u 2019. i 2020. godini.Deskriptivnom i korelacijskom statistiÄkom analizom obuhvaÄeni su i pokazatelji grupa odjela na javnim natjeÄajima: povrÅ”ina, neto obujam doznaÄenog drva, sjeÄna gustoÄa, broj doznaÄenih stabala po ha, obujam srednjeg doznaÄenog stabla, nagib terena, srednja udaljenost privlaÄenja drva, stjenovitost terena i privlaÄenje drva uz nagib terena.Test zavisnih parova podataka je ukazao da postoji statistiÄki znaÄajna razlika izmeÄu planskih i ugovorenih cijena usluga pridobivanja drva (t = 7,78, p < 0,001), a rezultati korelacijske analize potvrdili povezanost utjecajnih Äimbenika izvoÄenja Å”umskih radova s ugovorenom i planskom cijenom pridobivanja drva. Uslijed statistiÄki znaÄajne (p < 0,05) i vrlo jake korelacije natjeÄajima ostvarene i prikazanom metodom izraÄunate planske cijene usluge pridobivanja drva, ovisnost je izjednaÄena linearnim regresijskim modelom uz koeficijent determinacije od 0,667. Navedenim, prikazana je metoda izraÄuna planske cijene usluge pridobivanja drva dobar prediktor ostvarenih cijena pridobivanja drva na javnim natjeÄajima, Å”to govori i o samoj dobroti prikazane metode izraÄuna. Slaba i negativna korelacija (p < 0,05, r = -0,22) razlike ugovorene i planske cijene usluge pridobivanja drva o obujmu srednjeg doznaÄenog stabla, ukazala je da bi ovu pojavu u buduÄnosti trebalo pratiti s ciljem utvrÄivanja uzroka, koji mogu biti: 1) meÄusobna konkurencija izmeÄu izvoditelja usluga pridobivanja drva za grupe odjela sa veÄim srednjim obujmom doznaÄenoga stabla ili 2) precjenjivanje obujma srednjeg doznaÄenog stabla u prikazanome modelu izraÄuna planske cijene pridobivanja drva.Predložene su i smjernice poveÄanja toÄnosti odreÄivanja ulaznih parametara (srednja udaljenost privlaÄenja drva, nagib i stjenovitost terena te privlaÄenje drva uz nagib terena) prikazane metode izraÄuna planskih cijena pridobivanja drva u cilju njenog usavrÅ”avanja. S obzirom da je izraÄun vezan za srednju plansku cijenu na razini Å”umskog gospodarstva, a koju utvrÄuje uprava trgovaÄkog druÅ”tva, neophodno je stalno praÄenje tržiÅ”ta, kako bi se na vrijeme moglo reagirati ukoliko bi doÅ”lo do veÄih oscilacija.The paper presents the method of calculating planned prices of timber harvesting operations, which are the subject of public tenders in the forest management company Hercegbosanske Å”ume Ltd. Kupres and the analysis of deviations of the planned from the contracted (realised) prices for timber harvesting operations in 97 groups of compartments, which were the subject of public tenders in 2019 and 2020. Descriptive and correlation statistical analysis also included stand and terrain indicators in groups of compartments in public tenders: area, net volume of marked trees, harvesting density, number of marked trees per hectare, volume of medium marked tree, slope, average timber extraction distance, terrain stoniness and parameter of uphill timber extraction. The test of dependent data pairs indicated that there is a statistically significant difference between planned and contracted prices of timber harvesting operations (t = 7,78, p < 0.001), and the results of correlation analysis confirmed the connection of influential factors of forest operations with the contracted and planned timber harvesting prices. Due to the statistically significant (p < 0.05) and very strong correlation with the contracted and the planned price of the timber harvesting operations calculated by the presented method, the dependence was equalized by a linear regression model with a coefficient of determination of 0.667. In conclusion, the method of calculating the planned price of timber harvesting operations is a good predictor of what can be contracted prices in public tenders thus showing its suitability in future calculations. Weak and negative correlation (p < 0.05, r = -0.22) of the difference between the contracted and planned price of the timber harvesting operations on the volume of the medium marked tree, indicated future monitoring to determine its causes, which could be: 1) mutual competition between timber harvesting operations providers with a larger volume of medium marked tree or 2) overestimation of the volume of medium marked tree in the presented model. Guidelines for increasing the accuracy of determining input parameters (average timber extraction distance, slope, terrain stoniness, and parameter of uphill timber extraction) are also presented. Given that the calculation is related to the average planned price at the level of forest management, which is determined by the management of the company, it is necessary to constantly monitor the market in order to react in time if major oscillations occur
7th International ConferenceThe Future of Information Sciences INFuture2019: Knowledge in the Digital Age
This is the seventh publication in the series of biennial international conferences, The Future of Information Sciences (INFuture) organised by the Department of Information and Communication Sciences, Faculty of Humanities and Social Sciences, University of Zagreb. Since its beginnings twelve years ago, the INFuture conference has been providing a platform for discussing both theoretical and practical issues in information organization and information integration through the explorations of how developments in information and communication technology influence the future of the field of information sciences. Education and research in information sciences and its interdisciplinary scope and application is of particular interest to this conference which is aimed at researchers and professionals from the broad field of information and communication sciences and related professions. The title of this year's conference is INFuture2019: Knowledge in the Digital Age. The conference explores the influence the information and communication sciences have on the society as a whole.The INFuture2019 conference consists of 26 papers from 58 authors from nine countries -Austria, Croatia, Germany, Netherlands, Norway, Slovenia, South Korea, Sweden and United States