324 research outputs found

    Web Mining Framework: Croatian Patents Case Study

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    Patents are one of the most valuable sources of technical and commercial knowledge. Although patents are public and can be easily searched on the Web, for most countries, there is no easy way to download bulk patent data. The purpose of this paper is to create a web mining framework used to extract patent data from the Croatian State Intellectual Property Office. Even though framework was created for the purposes of extracting Croatian patents, it can be reused for other web mining cases. The architecture of the proposed framework combines the use of web crawler and big data tools, in order to provide a complete and flexible solution for building general-purpose web mining application. The biggest limitation of this framework comes from the programming knowledge required to implement it. Therefore, this framework is only available to the small number of researchers. Data extracted with web mining methods is only as good as the algorithm used to extract data. Nevertheless, the data from official sources should always be preferred to the one retrieved using web mining methods. This work is licensed under a&nbsp;Creative Commons Attribution-NonCommercial 4.0 International License.</p

    Web Mining Framework: Croatian Patents Case Study

    Get PDF
    Patents are one of the most valuable sources of technical and commercial knowledge. Although patents are public and can be easily searched on the Web, for most countries, there is no easy way to download bulk patent data. The purpose of this paper is to create a web mining framework used to extract patent data from the Croatian State Intellectual Property Office. Even though framework was created for the purposes of extracting Croatian patents, it can be reused for other web mining cases. The architecture of the proposed framework combines the use of web crawler and big data tools, in order to provide a complete and flexible solution for building general-purpose web mining application. The biggest limitation of this framework comes from the programming knowledge required to implement it. Therefore, this framework is only available to the small number of researchers. Data extracted with web mining methods is only as good as the algorithm used to extract data. Nevertheless, the data from official sources should always be preferred to the one retrieved using web mining methods. This work is licensed under a&nbsp;Creative Commons Attribution-NonCommercial 4.0 International License.</p

    INFORMIRANOST STUDENATA O EUROPSKOJ UNIJI I ZAVRÅ ETKU HRVATSKIH PRISTUPNIH PREGOVORA

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    The completion of Croatiaā€™s EU accession negotiations was one of the hot topics in the media lately. After the initial euphoria over the achievement of one of the most important foreign policy goals died down, the public started to voice an increasing amount of displeasure and criticize political elites for the non-transparency of the process and the low level of awareness about the contents of the negotiating chapters. Educational deficit stemming from lack of information is just one of the factors that, coupled with prejudice and stereotypes, resulted in growing Euro-scepticism and aversion to the EU and European integration in general. Previous studies undertaken in the same target group showed that youth is one of the hottest groups for communication of EU-related topics because they often overestimate their knowledge about the EU, but are mostly pro-European, as EU accession opens up new opportunities and perspectives for them, mainly in terms of education with employment ā€“ not surprisingly, since this is the group that is going to live in the EU one day. The survey was carried out in late October 2011 on a sample of 105 students of communication sciences and attempted to establish how well-informed they were about the European Union, including enlargement policy and functioning of the EUā€™s internal market, with a special emphasis on Croatiaā€™s European integration course and the completion of Croatiaā€™s accession negotiations. The results revealed that students (youth) were very well-informed about Croatiaā€™s European integration course and the completion of the negotiations. Contrary to the expectations, the respondents proved to be well-informed about enlargement policy as well. A lower level of awareness was observed, however, in the department of internal EU market, which opens up the room for improvement for the media and the political elites alike.ZavrÅ”etak hrvatskih pristupnih pregovora s EU bila je jedna od najeksponiranijih medijskih tema u proteklome razdoblju. Nakon početne euforije zbog ostvarivanja jednog od najvažnijih vanjsko-političkih ciljeva, u javnosti se moglo čuti sve viÅ”e negodovanja i prozivki upućenih političkim elitama zbog netransparentnosti samoga procesa kao i loÅ”e informiranosti građana oko sadržaja pregovaračkih poglavlja. Obrazovni deficit, temeljen na nedostatku informacija, samo je jedan od faktora koji, uz predrasude i stereotipe, rezultira jačanjem euroskepticizma i negativnoga raspoloženja prema EU i eurointegracijama općenito. Ranija istraživanja pokazala su kako su mladi svakako jedna od poželjnijih skupina za informiranje budući da nerijetko precjenjuju svoje znanje o EU, ali su uglavnom proeuropski orijentirani budući da ulazak u EU za njih otvara nove mogućnosti i perspektive ponajprije u smislu obrazovanja i zapoÅ”ljavanja, Å”to ne čudi budući da je riječ o skupini koja će jednoga dana i živjeti u EU. Istraživanje provedeno krajem listopada 2011. na uzorku od 105 ispitanika, studenata komunikologije, analiziralo je informiranost studenata o Europskoj uniji, uključujući politiku proÅ”irenja te funkcioniranja unutarnjeg tržiÅ”ta EU-a, s posebnim naglaskom na hrvatski eurointegracijski put i zavrÅ”etak hrvatskih pristupnih pregovora. Rezultati su pokazali kako su studenti (mladi) jako dobro informirani o hrvatskom eurointegracijskom putu kao i zavrÅ”etku pregovora. Nadalje, suprotno očekivanjima pokazalo se kako su ispitanici dobro informirani i oko politike proÅ”irenja, dok je kod funkcioniranja unutarnjeg tržiÅ”ta EU-a uočena slabija informiranost Å”to otvara dodatan prostor za poboljÅ”anje kako medijima tako i političkim elitama

    Deep Web - Some Lessons to Learn

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    Internet is a huge resource of information, but only the small portion of it is visible to regular users. More than 90 per cent of the web is hidden and to be able to see it, users need to use specific software like Tor. Currently there are more than 2.5 million daily users using Tor to surf the ā€œhidden webā€. Ever since Bitcoin and other virtual currencies became popular, more and more users started using Tor for illegal activities. These activities include exchanging illegal goods such as drugs, weapons, illegal data, and stolen credit cards information. The aim of this paper is to analyse the content of anonymous marketplace in one short period of time (72 hours) according to different products offered, scale of performed transactions, origin of the seller, and customer evaluation of the seller. For the needs of this paper, specialised crawling software was developed and as a result, 35 gigabytes of data was downloaded from one of the many black markets used by Tor users. The study shows that in that period, more than 5000 different products worth 1.8 million dollars were listed on the market. The research includes 2500 transactions each worth on average 51 dollars. With the advances in the technology and a growing number of Internet users, further growth of illegal activities on the ā€œdark webā€ can be expected. It is interesting to analyse how the transactions are closed on the ā€œdark webā€ since there are no legal institutions or any legal frame for business. These transactions are based on trust, confidence and customer evaluation on social networks. This work is licensed under a&nbsp;Creative Commons Attribution-NonCommercial 4.0 International License.</p

    Mission critical ICT

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    In this paper, three technologies intended to be implemented in Private Mobile Radio systems are analyzed and compared: TETRA (Terrestrial Trunked Radio), LTE (Long Term Evolution) and DMR (Digital Mobile Radio). Characteristics of these networks are collected and compared in one SWOT table. Based on this analysis, appropriate recommendations are made, which should be taken into account when choosing a specific solution for specific uses in Critical Communications systems

    Value Creation Concept In Stakeholder And Shareholder Economies

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    In the financial theory it is common to make distinction between two types of corporate value creation concept: shareholder value and stakeholder value. In shareholder systems, also known as Anglo-American concept, institutional investors, who usually own small percentages of companies' shares, exert significant influence over managers. In major stakeholder systems, marked as Continental concept, influence is shared between large shareholders, employees, customers and suppliers. The aim of this paper is to analyze influence of globalization processes and economic crises on value creation theory and practice

    Efekti upotrebe različitih doza mravlje kiseline kao konzervansa pri siliranju lucerke

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    The influence of formic acid added in three doses (3,5 and 7 g/kg fresh mass) in the intensity of proteolysis and fermentation in Lucerne silages was investigated. On the basis of chemical analyses, it is observed that with the increase of conserving dose the lower pH value, limited proteolysis and increased preservation of proteins was achieved. The amino acid content varied very much due to their degradation and biosynthesis. In treated silages a statistically significant increase of lactic acid was observed while silages with maximum dose of conserving had significantly less free and total acetic acid. Presence of bonded butyric acid only in the control silage had no statistical significance. According to Dulphy and Demarquilly (1981) method, control silage with minimum dose of conserving was estimated as III class and silages with medium and high dose of formic acid were estimated as II quality class.U eksperimentu je ispitivan uticaj mravlje kiseline, koriŔćene u tri doze (3, 5 i 7 g/kg zelene mase) na intenzitet proteolize i fermentacije u silažama lucerke. Na osnovu rezultata hemijskih analiza utvrđeno je da je sa porastom doze konzervansa doÅ”lo do snižavanja pH vrednosti, ograničavanja proteolize i povećanja očuvanosti proteina. Sadržaj pojedinih aminokiselina je dosta varirao usled njihovog razlaganja ili biosinteze. U tretiranim silažama utvrđena je statistički značajno veća produkcija mlečne kiseline, dok su silaže sa maksimalnom dozom konzervansa sadržale signifikantno manje slobodne i ukupne sirćetne kiseline. Prisustvo buterne kiseline u vezanom obliku samo u kontrolnoj silaži nije imalo statističku značajnost. Po metodi Dulphy-a i Demarquilly-a (1981) kontrolna i silaža sa minimalnom dozom konzervansa ocenjene su III klasom, a silaže sa dodatkom srednje i viÅ”e doze mravlje kiseline II klasom kvaliteta

    Effects of technological changes and trade liberalisation on industrial development in the Western Balkan Countries

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    The transition process in the Western Balkan Countries (W.B.C.) is followed by efforts focused on modernisation and industrial manufacture growth. However, industries in these countries are still under the pressure of the need for restructuring and the rules of an open market. Opening towards the world and transferring new technologies are related processes. Although they are of the same importance, adoption of new technologies is a process which is more demanding than trade liberalisation process. Technological and trade openness pander to other factors of development and contribute to higher efficiency of investments. Industrial manufacture growth spurs economic growth. Furthermore, share of industrial production in G.D.P. as dependent variable represents the scope and quality of industrial development. The hypothesis is that the share of industrial production in G.D.P. is affected by: Technological readiness, Manufacture value added and Merchandise trade as well as Gross investments and Innovations. Results of panel analysis indicate that Technological readiness, Manufacture value added and Gross investments have positive and significant impact on industrial development. Negative coefficient of merchandise trade liberalisation in the panel model implies slowdown of industrial development, and one of the reasons is continuously high merchandise trade deficit in W.B.C

    E Actitrode: The new selective stimulation interface for functional movements in hemiplegics patients

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    We describe the new multi-contact electrode-array for surface electrical stimulation, and the corresponding interface device that allows on-line selection of the conductive fields during the application of the system. This new device has a specific value for therapeutic applications of electrical stimulation since it allows effective generation of desired functional movements. The user-friendly interface also allows patients at home to select the optimal electrode array; thereby, to receive therapies out of the clinical environment. The electrode was tested in three post-stroke hemiplegics patients. The pilot experiments showed that system works sufficiently good for control of fingers during grasp and release functions without the interference of the wrist movement. The use of electrode is also envisioned for many other applications (foot-drop fitness, shoulder subluxation, etc)

    In situ phase analysis of the thermal decomposition products of zirconium salts

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    X-ray powder diffraction at high temperature was used to determine the phase composition of the thermal decomposition products of two zirconium salts, Zr(SO4)(2). 4H(2)O and ZrO(NO3)(2). 2 H2O, and of a mixture of zirconium nitrates having Zr(OH)(2)(NO3)(2). 4.7 H2O and ZrO(NO3)(2). 2H(2)O as dominant components. Heating of the samples up to 1200 degrees C was performed inside a high-temperature chamber, attached to a diffractometer, at an air pressure of approximate to 2 x 10(-3) Pa. Regardless of the structural differences in the starting salts, thermal decomposition products crystallized to t-ZrO2 which remained stable up to 1200 degrees C. This result indicated that the structural nature of the starting materials was not the most important factor of metastable t-ZrO2 formation. The thermodynamically stable m-ZrO2 appeared after the cooling of the samples to room temperature. If the cooling was performed at low air pressure, the m-ZrO2 content was small. Introduction of air, even at RT, caused a considerable increase of m-ZrO2, which became the dominant phase in all cases. The important role of oxygen in the t-ZrO2 --> m-ZrO2 transition indicates that the lack of oxygen in the zirconia lattice favours the formation of metastable t-ZrO2
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