scholarly journals SOME ASPECTS OF TECHNOLOGY USED TO MAKE ITEMS FROM THE BRYANSKAND MOSHCHINY HOARDS

2020 ◽  
Author(s):  
Н.А. Биркина
Keyword(s):  
The State ◽  
High Quality ◽  
East European

Работа посвящена исследованию технологических аспектов работы мастеров-ювелиров на примере двух кладов круга восточноевропейских варварских выемчатых эмалей, хранящихся в собрании Государственного исторического музея. Все предметы были разделены на основные группы по способу постлитейной обработки. Были зафиксированы следы, связанные с технической доработкой изделий и их декорированием. Финальным этапом стало сравнение полученных данных с результатами экспериментов по реконструкции ряда процессов, в том числе способов нанесения орнамента. Проведенный анализ позволяет говорить о том, что, несмотря на высокий уровень изделий, многие операции могли производиться кустарным способом. The paper deals with the study of technological aspects of the work performed by smiths based on a case study of two hoards attributed to the circle of East European barbarian champlevé enamels kept in the collection of the State Historical Museum. All items were divided into main groups based on the method of post-casting treatment. Traces associated with post-casting treatment and decoration were identified. As the final step, the data obtained were compared with the data from the experiments conducted to reconstruct a number of processes, including methods of ornamentation. This analysis suggests that, despite high quality of the items, many operations could be performed domestically.

scholarly journals Using the Google™ Search Engine for Health Information: Is There a Problem? Case Study: Supplements for Cancer

2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Hannah C Cai ◽  
Leanne E King ◽  
Johanna T Dwyer
Keyword(s):  
Health Information ◽  
Search Engine ◽  
Information Quality ◽  
Nutrition Information ◽  
High Quality ◽  
Search Results ◽  
Health And Nutrition ◽  
Quality Rating

ABSTRACT We assessed the quality of online health and nutrition information using a Google™ search on “supplements for cancer”. Search results were scored using the Health Information Quality Index (HIQI), a quality-rating tool consisting of 12 objective criteria related to website domain, lack of commercial aspects, and authoritative nature of the health and nutrition information provided. Possible scores ranged from 0 (lowest) to 12 (“perfect” or highest quality). After eliminating irrelevant results, the remaining 160 search results had median and mean scores of 8. One-quarter of the results were of high quality (score of 10–12). There was no correlation between high-quality scores and early appearance in the sequence of search results, where results are presumably more visible. Also, 496 advertisements, over twice the number of search results, appeared. We conclude that the Google™ search engine may have shortcomings when used to obtain information on dietary supplements and cancer.

An open-source R-package and web application for high-quality probabilistic predictions in hydrology

2021 ◽  
Author(s):  
Jason Hunter ◽  
Mark Thyer ◽  
Dmitri Kavetski ◽  
David McInerney
Keyword(s):  
Open Source ◽  
Web Application ◽  
R Package ◽  
Error Model ◽  
Objective Functions ◽  
High Quality ◽  
Wide Range ◽  
Probabilistic Error

<p>Probabilistic predictions provide crucial information regarding the uncertainty of hydrological predictions, which are a key input for risk-based decision-making. However, they are often excluded from hydrological modelling applications because suitable probabilistic error models can be both challenging to construct and interpret, and the quality of results are often reliant on the objective function used to calibrate the hydrological model.</p><p>We present an open-source R-package and an online web application that achieves the following two aims. Firstly, these resources are easy-to-use and accessible, so that users need not have specialised knowledge in probabilistic modelling to apply them. Secondly, the probabilistic error model that we describe provides high-quality probabilistic predictions for a wide range of commonly-used hydrological objective functions, which it is only able to do by including a new innovation that resolves a long-standing issue relating to model assumptions that previously prevented this broad application.  </p><p>We demonstrate our methods by comparing our new probabilistic error model with an existing reference error model in an empirical case study that uses 54 perennial Australian catchments, the hydrological model GR4J, 8 common objective functions and 4 performance metrics (reliability, precision, volumetric bias and errors in the flow duration curve). The existing reference error model introduces additional flow dependencies into the residual error structure when it is used with most of the study objective functions, which in turn leads to poor-quality probabilistic predictions. In contrast, the new probabilistic error model achieves high-quality probabilistic predictions for all objective functions used in this case study.</p><p>The new probabilistic error model and the open-source software and web application aims to facilitate the adoption of probabilistic predictions in the hydrological modelling community, and to improve the quality of predictions and decisions that are made using those predictions. In particular, our methods can be used to achieve high-quality probabilistic predictions from hydrological models that are calibrated with a wide range of common objective functions.</p>

scholarly journals Using Multivariate Statistical Methods to Analyze High-Quality Bicycle Path Service Systems: A Case Study of Popular Bicycle Paths in Taiwan

2020 ◽  
Vol 12 (17) ◽  
pp. 7185
Author(s):  
Shinn-Jou Lin ◽  
Guey-Shin Shyu ◽  
Wei-Ta Fang ◽  
Bai-You Cheng
Keyword(s):  
Explanatory Power ◽  
Value Added ◽  
Service Systems ◽  
Image Management ◽  
High Quality ◽  
Multivariate Statistical ◽  
The Individual ◽  
Quantitative Indicators

Taiwan has promoted bicycle tourism for nearly 20 years, and the bicycle paths it has constructed throughout the island are diverse in design. In the present study, an evaluation scale for bicycle path sightseeing potential was devised with a focus on the overall service quality of the paths; 30 popular bicycle paths were analyzed using a field survey, with expert consultation on quantitative indicators, and a qualitative analysis entailing interviews with people regarding the bicycle paths. A multivariate statistical analysis was performed on the quality of the service systems for these paths. The results revealed that the quality of these service systems is influenced by four principal components, namely, landscape attractiveness, image management, bicycle-specific paths, and accessibility, for a total explanatory power of 76.21%; the individual explanatory power of these components was 25.89%, 21.49%, 16.81%, and 12.03%, respectively. Bicycle path conditions, service maintenance, and cleanliness and bicycle specificity are required for future high-quality bicycle paths; diverse bicycle rental services and bicycle types, entrance visibility, and ecological introduction boards along paths are value-added factors to bicycle path quality.

scholarly journals Soil Mapping Based on the Integration of the Similarity-Based Approach and Random Forests

Land ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 174
Author(s):  
Desheng Wang ◽  
A-Xing Zhu
Keyword(s):  
Random Forests ◽  
Cross Validation ◽  
Soil Mapping ◽  
High Quality ◽  
Integrated Method ◽  
Average Accuracy ◽  
Soil Information ◽  
Fold Cross Validation

Digital soil mapping (DSM) is currently the primary framework for predicting the spatial variation of soil information (soil type or soil properties). Random forests and similarity-based methods have been used widely in DSM. However, the accuracy of the similarity-based approach is limited, and the performance of random forests is affected by the quality of the feature set. The objective of this study was to present a method for soil mapping by integrating the similarity-based approach and the random forests method. The Heshan area (Heilongjiang province, China) was selected as the case study for mapping soil subgroups. The results of the regular validation samples showed that the overall accuracy of the integrated method (71.79%) is higher than that of a similarity-based approach (58.97%) and random forests (66.67%). The results of the 5-fold cross-validation showed that the overall accuracy of the integrated method, similarity-based approach, and random forests range from 55% to 72.73%, 43.48% to 69.57%, and 54.17% to 70.83%, with an average accuracy of 66.61%, 57.39%, and 59.62%, respectively. These results suggest that the proposed method can produce a high-quality covariate set and achieve a better performance than either the random forests or similarity-based approach alone.

scholarly journals Dialogue Generation: From Imitation Learning to Inverse Reinforcement Learning

2019 ◽  
Vol 33 ◽  
pp. 6722-6729 ◽  
Author(s):  
Ziming Li ◽  
Julia Kiseleva ◽  
Maarten De Rijke
Keyword(s):  
Reinforcement Learning ◽  
State Of The Art ◽  
The State ◽  
Experimental Results ◽  
Imitation Learning ◽  
Local Optimum ◽  
Inverse Reinforcement Learning ◽  
High Quality ◽  
Overall Performance

The performance of adversarial dialogue generation models relies on the quality of the reward signal produced by the discriminator. The reward signal from a poor discriminator can be very sparse and unstable, which may lead the generator to fall into a local optimum or to produce nonsense replies. To alleviate the first problem, we first extend a recently proposed adversarial dialogue generation method to an adversarial imitation learning solution. Then, in the framework of adversarial inverse reinforcement learning, we propose a new reward model for dialogue generation that can provide a more accurate and precise reward signal for generator training. We evaluate the performance of the resulting model with automatic metrics and human evaluations in two annotation settings. Our experimental results demonstrate that our model can generate more high-quality responses and achieve higher overall performance than the state-of-the-art.

Modeling of eutrophication and strategies for improvement of water quality in reservoirs

2016 ◽  
Vol 74 (6) ◽  
pp. 1376-1385 ◽  
Author(s):  
Mojtaba Shourian ◽  
Ali Moridi ◽  
Mohammad Kaveh
Keyword(s):  
Water Quality ◽  
Thermal Regime ◽  
Thermal Stratification ◽  
Present Situation ◽  
The State ◽  
Nitrogen Loads ◽  
Quality Of Water ◽  
Pollution Loads

The purpose of this study is to survey the thermal regime and eutrophication states in Ilam reservoir in Iran as the case study. For this purpose and to find solutions for improving the water's quality in the reservoir, two general strategies for reducing the entering pollution loads and water depletions from the reservoir's outlets were analyzed by use of the CE-QUAL-W2 model. Results of the simulation of the present situation show the existence of thermal stratification during summer, which results in the qualitative stratification in the reservoir. According to the qualitative criteria, the Ilam reservoir's state is between mesotrophic and eutrophic. Results of the scenarios of reduction of the nutrients show that in the scenario of 50% reduction of the phosphorus and nitrogen loads into the reservoir, the state of the reservoir would recover from eutrophic to semi-eutrophic. Also, release of water from the reservoir during September, October and November would cause the restoration of the quality of water in the reservoir. To avoid the occurrence of critical eutrophication in the reservoir, reducing the ponding time in the reservoir by fast depletion, preventing entrance of the upstream villages' sewage and agricultural drained waters, which are sources of nitrate and phosphate contamination into the rivers, and also management of the usage of agricultural fertilizers have been suggested.

scholarly journals Sports and Health as Cornerstones of Tourism Development: Case Study of Montenegro

2020 ◽  
Author(s):  
Anđela Jakšić-Stojanović ◽  
Neven Šerić
Keyword(s):  
Natural Resources ◽  
Driving Force ◽  
Tourism Development ◽  
International Market ◽  
The Other ◽  
Special Focus ◽  
Health Tourism ◽  
High Quality

The modern phenomenon of tourism is more focused on specific forms of tourism in which sports and health tourism play a very important role. That fact is not surprising having in mind that they represent interconnected activities that complement each other and give each other completely new dimension. On one side, sports and health represent very important content of tourist offer because of the fact they enable tourists to become active participants in various activities, and on the other side, they represent important driving force for visiting particular destination. The idea of this chapter is to provide a theoretical and practical framework of this issue with a special focus on case study of Montenegro. According to the results of the research that was carried out, the general conclusion is that Montenegro has extremely valuable natural resources and potentials for the development of sports and health tourism, but there are still a lot of challenges that should be faced in the future in order to improve the quality of tourist offer and the level of tourists’ satisfaction as well as to create completely new image of the destination and position it as high-quality sports and health tourist destination on international market.

scholarly journals Main Directions of Tourism Sector Development in a Region (Case Study of the Orel Region)

2021 ◽  
Vol 21 (4) ◽  
pp. 96-106
Author(s):  
M.V. Zhukova ◽  
◽  
A.N. Karlov ◽  
Keyword(s):  
Information Technologies ◽  
The State ◽  
Sociological Study ◽  
Empirical Basis ◽  
Accessible Information ◽  
Tourism Sector ◽  
Domestic Tourism

Current conditions that determine the widespread development of domestic tourism, the search for new tourist products and services within the state are considered. The empirical basis of this article is the results of a sociological study of the main directions of the development of domestic tourism, conducted in April 2021 at the Department of Sociology and Information Technologies. It is summarized that improving the quality of tourist services, as well as complete and accessible information about tourist products will help to increase demand in the region by attracting potential tourists.

scholarly journals Integrated Quality-Based Production-Distribution Planning in Two-Echelon Supply Chains

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Husein Pasha ◽  
Isa Nakhai Kamalabadi ◽  
Alireza Eydi
Keyword(s):  
Mixed Integer ◽  
High Quality ◽  
Swarm Optimization ◽  
Integrated Production ◽  
Quality Degradation ◽  
Production Distribution ◽  
Quality Of Products ◽  
Over Time

The integrated production-distribution (P-D) planning has turned into one of the most essential areas in supply chain (SC) management in recent years, especially in the case of perishable products in which the quality of products can change over time. Nonetheless, so far, the suggested models have focused on the P-D stages of the chain while the delivery of high-quality products to customers is of paramount significance in the perishable SC. In the present paper, a multiobjective, mixed-integer, and nonlinear programming (MOMINLP) mathematical model was developed for integrated P-D deteriorating items in a two-echelon SC that emphasizes quality degradation. Quality is monitored and calculated as a function of temperature and time throughout the SC, and the main purpose of the model is to first increase the quality of products delivered to customers and, second, minimize the SC costs. To optimize the problem, the particle swarm optimization (PSO) approach was also incorporated into the model. The obtained model was applied to a case study in Protein Gostar Sina Company in Iran, which resulted in decreased P-D costs as well as increased customer satisfaction.

scholarly journals A QUALIDADE DE VIDA NO TRABALHO EM UMA PERSPECTIVA CONTRA-HEGEMÔNICA

2018 ◽  
Vol 7 (1) ◽  
pp. 70-79
Author(s):  
Mateus de De Freitas Barreiro
Keyword(s):  
Quality Of Life ◽  
Information Technology ◽  
Well Being ◽  
The State ◽  
Organizational Efficiency ◽  
Competitive Markets ◽  
Preventive Approach ◽  
Efficiency And Effectiveness

Este artigo tem o objetivo de apresentar como a Qualidade de Vida no Trabalho (QVT) pode ser inserida em mercados competitivos, como o das organizações de Tecnologia da informação (TI) que comumente tem dificuldades para reter talentos. Quando a QVT é trabalhada sob uma óptica preventiva, que se contrapõem as visões assistencialistas e hegemônicas, a QVT poderá ser uma ferramenta que interfere diretamente na motivação dos colaboradores, levando a uma maior eficiência e eficácia organizacional, sendo um dos diferenciais para o êxito nos negócios e no bem-estar dos colaboradores. Esta pesquisa visa focar especificamente a QVT à luz do método de Walton, a partir de um estudo de caso sobre uma microempresa de TI no interior do Estado de São Paulo.Palavras-Chave: Qualidade de Vida no Trabalho. Método de Walton. Tecnologia da informação. Abstract: This article aims to present itself as the Quality of Life at Work (QVT) can be inserted in competitive markets, such as the Information Technology (IT) organizations that commonly have difficulty retaining talent. When QVT is crafted under a preventive approach, which counteracts the paternalistic and hegemonic visions, QVT can be a tool that directly affects the motivation of employees, leading to greater organizational efficiency and effectiveness, one of the advantages for success in business and well-being of employees. This research aims to focus specifically QVT the light of Walton method, from a case study of an IT microenterprise in the state of São Paulo.Keywords: Quality of Life at Work. Walton method. Information Technology.

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