Опыт использования систем рейтингирования в краудсорсинговых проектах
The article analyzes the possibilities of using ratings of crowdsourcing projects participants. The advantages of using such ratings, which enhance the quality of joint activity of crowdsourcing participants, are highlighted. The experience of using ratings by leading domestic organizers crowdsourcing projects is described.
The study deals with post-processing of a noisy collection of synsets created using crowdsourcing. First, we cluster long synsets in three different ways. Second, we apply four cluster cleaning techniques based either on word popularity or word embeddings. Evaluation shows that the method based on word embeddings and existing dictionary definitions delivers best results.
This book constitutes the refereed proceedings of the 10th International Conference on Machine Learning and Data Mining in Pattern Recognition, MLDM 2014, held in St. Petersburg, Russia in July 2014. The 40 full papers presented were carefully reviewed and selected from 128 submissions. The topics range from theoretical topics for classification, clustering, association rule and pattern mining to specific data mining methods for the different multimedia data types such as image mining, text mining, video mining and Web mining.
The Cropland Capture game (CCG) aims to map cultivated lands using around 170000 satellite images. The contribution of the paper is threefold: (a) we improve the quality of the CCG’s dataset, (b) we benchmark state-of-the-art algorithms designed for an aggregation of votes in a crowdsourcing-like setting and compare the results with machine learning algorithms, (c) we propose an explanation for surprisingly similar accuracy of all examined algorithms. To accomplish (a), we detect image duplicates using the perceptual hash function pHash. In addition, using a blur detection algorithm, we filter out unidentifiable images. In part (c), we suggest that if all workers are accurate, the task assignment in the dataset is highly irregular, then state-of-the-art algorithms perform on a par with Majority Voting. We increase the estimated consistency with expert opinions from 77% to 91% and up to 96% if we restrict our attention to images with more than 9 votes.
We create collaborative environment for collaborative creation, improvement and promoting bills within public and legislative projects. Enacting a new law means that a community devises out new rules which help it to become more efficient. Below are the principles on which legislative collaboration is based: Public construction of a document aiming at complex cloud issues has high educational value. The practice helps not only produce a quality document and build a community of people interested in its implementation, but promote the innovative document, maintain a new level of its understanding and perception by the society. 518 Collaborative document creation and voting has a priority over document deliberation. Our technology allows collaboration participants to create their own text versions, that could be voted for by other participants. The value of deliberation is less than the value of collaboration. Contemporary collaboration does not always need discussions. Discussion can take so much time and efforts that participants do not have resources to collaborate. The process of selecting text segments is based on the participants' voting. All the votes should be counted but the weight of each vote depends on the participant's impact and the estimation of this impact by the community. The more is the participant's impact and its estimation, the more is the participant's vote weight.
The notions of crowdsourcing and reputation are compared. It is shown that crowdsourcing may be a significant factor influencing reputation formation of various social players; in strategic perspective it allows to build a new model of social interaction.
In this overview, I examine the history of the term “crowdfunding” and analyze different theoretical approaches to its definition. Primarily as a business tactic. Many crowdfunding projects are related to multimedia: music, video-games, book publishing and so on. Besides, it is an element of alternative economic processes, which was mentioned in the work of Manuel Castells – sponsors organize their community within one platform so as to facilitate the creation of a product or service that they desire. As many Russian researchers note most sponsors of crowdfunding projects have a motivation that transcends the purely material, which is lost when examining the phenomenon of crowdfunding as a simple exchange of money for goods and services. I highlight the advantages of the latter approach and propose a definition which unites different points of view. I categorize leading Western crowdfunding platforms (Kickstarter and IndieGoGo), list preeminent specialized platforms, perform an in-depth analysis of the largest Russian crowdfunding services (Planeta.ru and Boomstarter). Besides I examine the website Sbor-nik, which is used to crowdfund the publishing of books, as an example of a specialized platform . Statistics regarding the number of projects launched, active users and funds collected are presented for each platform. The non-material motivation of users is paid particular attention – I present examples of social and charity projects that were present of the abovementioned platforms, as well as cases where users actually refused material rewards or chose non-material ones. I highlight the socio-cultural preferences of backers and sponsors on various platforms. After all, I attempt to define crowdfunding as a societal and cultural phenomenon, and analyze the particularities of crowdfunding in Russia. I argue that crowdfunding is being considered by the people who patronize various services as a supplementary method of funding important projects in areas, where the failures of social and cultural policies of the state fail.
Smoking is a problem, bringing signifi cant social and economic costs to Russiansociety. However, ratifi cation of the World health organization Framework conventionon tobacco control makes it possible to improve Russian legislation accordingto the international standards. So, I describe some measures that should be taken bythe Russian authorities in the nearest future, and I examine their effi ciency. By studyingthe international evidence I analyze the impact of the smoke-free areas, advertisementand sponsorship bans, tax increases, etc. on the prevalence of smoking, cigaretteconsumption and some other indicators. I also investigate the obstacles confrontingthe Russian authorities when they introduce new policy measures and the public attitudetowards these measures. I conclude that there is a number of easy-to-implementanti-smoking activities that need no fi nancial resources but only a political will.
One of the most important indicators of company's success is the increase of its value. The article investigates traditional methods of company's value assessment and the evidence that the application of these methods is incorrect in the new stage of economy. So it is necessary to create a new method of valuation based on the new main sources of company's success that is its intellectual capital.
портовый менеджмент, показатели деятельности, анализ эффективности, система учета, распределение издержек, методы анализа деятельности портовой системы
At present many industries reveal tendency for setting up of vertically integrated companies (VIC) the structure of which unites all technological processes. This tendency proved its efficiency in oil industry where coordination of all successive stages of technological process, namely, oil prospecting and production -oil transportation - oil processing - oil chemistry - oil products and oil chemicals marketing, is necessary. The article considers specific features of introduction of "personnel management" module at enterprises of oil and gas industry.
vertically integrated companies; personnel management