Concept drift from 1980 to 2020: a comprehensive bibliometric analysis with future research insight

In nonstationary environments, high-dimensional data streams have been generated unceasingly where the underlying distribution of the training and target data may change over time. These drifts are labeled as concept drift in the literature. Learning from evolving data streams demands adaptive or evolving approaches to handle concept drifts, which is a brand-new research affair. In this effort, a wide-ranging comparative analysis of concept drift is represented to highlight state-of-the-art approaches, embracing the last four decades, namely from 1980 to 2020. Considering the scope and discipline; the core collection of the Web of Science database is regarded as the basis of this study, and 1,564 publications related to concept drift are retrieved. As a result of the classification and feature analysis of valid literature data, the bibliometric indicators are revealed at the levels of countries/regions, institutions, and authors. The overall analyses, respecting the publications, citations, and cooperation of networks, are unveiled not only the highly authoritative publications but also the most prolific institutions, influential authors, dynamic networks, etc. Furthermore, deep analyses including text mining such as; the burst detection analysis, co-occurrence analysis, timeline view analysis, and bibliographic coupling analysis are conducted to disclose the current challenges and future research directions. This paper contributes as a remarkable reference for invaluable further research of concept drift, which enlightens the emerging/trend topics, and the possible research directions with several graphs, visualized by using the VOS viewer and Cite Space software

Beden eğitimi öğretmenleri ile diğer branş öğretmenlerinin duygusal emek ve tükenmişlik düzeylerinin bazı değişkenler açısından incelenmesi

Bu araştırmada öğretmenlerin duygusal emek eğilimleri ile tükenmişlikleri arasındaki ilişkilerin incelenmesi ve beden eğitimi ve diğer branş öğretmenlerinin değişkenlere yönelik görüşlerinin farklılaşma durumlarının belirlenmesi amaçlanmıştır. İlişkisel tarama modelinde gerçekleştirilen araştırmanın örneklem grubunu 338 öğretmen oluşturmuştur. Araştırmanın verileri “Duygusal Emek Ölçeği” ve “Maslach Tükenmişlik Envanteri” kullanılarak elde edilmiştir. Değişkenlere ilişkin betimsel istatistiklerde aritmetik ortalama ve standart sapma değerlerinden, gruplar arasındaki farklılaşmayı belirlemede bağımsız örneklemler t-Testinden faydalanılmıştır. Araştırma sonucunda; öğretmenlerin yüzeysel rol yapma eğilimlerinin ve duyarsızlaşmalarının düşük düzeyde olduğu, derinden rol yapma eğilimlerinin ve duygusal tükenmişliklerinin orta düzeye yakın olduğu, doğal duygular eğilimlerinin ve kişisel başarı algılarının ise yüksek düzeyde olduğu sonucuna ulaşılmıştır. Yol analizi sonuçlarına göre doğal duygular ve derinden rol yapma eğiliminin tükenmişliğin tüm boyutlarını yordadığı, yüzeysel rol yapma eğiliminin ise sadece duygusal tükenmişliği yordadığı belirlenmiştir. Nedensellik anlamı taşımasa da istatistiksel olarak doğal duygular ve derinden rol yapma eğilimi arttıkça kişisel başarının önemli bir oranda arttığı, duyarsızlaşma ve duygusal tükenmişliğin ise azaldığı ortaya çıkmıştır

Painting and the pornographic: Marlene Dumas, Jenny Saville and plays of identifications

This thesis investigates and argues for instances of the affinity between painting and the pornographic traced in plays of identifications taking place in paintings of two contemporary women painters, Marlene Dumas and Jenny Saville.In the first part, it introduces debates araound pornography, the crisis of a systematically politicized issue of gender in these debates and the similarity of mentality in the elaboration of the female nude in the art/pornography opposition. In the rest of the thesis, shortcomings of thinking according to an opposition of art and pornography are argued through in relation to works of Dumas and Saville.Tracing their introduction of diffrent ways, the discontinuties of desire in the affinity between painting and the pornographic are explored. This thesis attempts to open up the problematic of the framing of bodies in images and the limits of thinking painting in terms of the art/pornography opposition to discussion through Dumas' and Saville's plays of identification

Exploring New Product Portfolio Management decisions: The role of managers' dispositional traits

Cataloged from PDF version of article.Product strategy links to new product development (NPD) through new product portfolio management (NPPM). This dynamic decision process addresses the strategy implementation questions of identifying which new product ideas to pursue and their relative priorities. Despite the importance of NPPM in implementing product strategy, firms exhibit substantial performance-affecting differences. We investigate one potential source for such differences by examining the impact of managers' dispositional factors as a possible explanation. Using a case study research method, we examine differences in NPPM strategies and managers' revealed dispositional traits across three divisions of a single conglomerate firm operating in different business-to-business markets. Based on our analysis, we offer propositions relating managers' dispositions to NPPM strategy: analytic cognitive style is associated with balance, ambiguity tolerance is associated with strategic fit, and leadership style is associated with the relative weights applied to each dimension. © 2007 Elsevier Inc. All rights reserved

A bibliometric analysis of research on supported ionic liquid membranes during the 1995-2015 period: study of the main applications and trending topics

A bibliometric analysis based on Scopus database was performed to identify the global research trends related to Supported Ionic Liquid Membranes (SILMs) during the time period from 1995 to 2015. This work tries to improve the understanding of the most relevant research topics and applications. The results from the analysis reveal that only after 2005 the research efforts focused on SILMs became significant, since the references found before that year are scarce. The most important research works on the four main application groups for SILMs defined in this work (carbon dioxide separation, other gas phase separations, pervaporation and liquid phase separations) were summarized in this paper. Carbon dioxide separation appeared as the application that has received by far the most attention according to the research trends during the analysed period. Comments about other significant applications that are gaining attention, such as the employment of SILMs in analytical tasks or their consideration for the production of fuel cells, have been included.This research has been financially supported by the Spanish Ministry of Economy and Competitiveness (MINECO) through CTQ2014-56820-JIN Project, co-financed by FEDER funds from European Union

Improvement of manufacturing productivity and responsiveness through integrated process planning and authorizing

Autoriziranje se može opisati kao signal u okviru sustava koji određuje može li neki posao započeti ili ne. Dok se u push sustavima započimanje poslova programira, u pull sustavima oni se autoriziraju budući da se proizvodni sustavi pull tipa upravljaju downstream informacijama. Tradicionalno se procesi planiranja i autoriziranja smatraju odvojenim zadacima koji se izvršavaju u slijedu te se autoriziranje izvršava nakon što su napravljeni planovi za odvijanje procesa. Imajući u vidu činjenicu da su njihove funkcije obično komplementarne, veća se proizvodnost i reaktivnost mogu postići kad se one integriraju. Iako radovi koji se bave planiranjem i programiranjem integriranih procesa (IPPS) postaju sve popularniji, koliko mi znamo, nema rada koji razmatra integraciju planiranja i autoriziranja procesa. Cilj je ovoga rada upozoriti na integraciju planiranja i autoriziranja procesa predstavljanjem novog modela nazvanog planiranje i autoriziranje integriranih procesa (IPPA). Prvi rezultati primjene IPPA pokazuju da je primjereno vršiti takvo integriranje te onda i stjecati prednosti kroz tu integraciju. Mala poduzeća (SMEs) naročito mogu imati koristi od IPPA zbog toga što on slabo ovisi od (profesionalne) softverske podrške.Authorizing can be described as an endogenous system signal that determines whether a job release is allowed or not. Whereas job releases are scheduled in push systems, they are authorized in pull systems since pull-type manufacturing systems are controlled by downstream information. Traditionally, process planning and authorizing are regarded as separate tasks performed sequentially, where authorizing is implemented after process plans have been generated. In view of the fact that their functions are usually complementary, higher productivity and responsiveness can be achieved when they are integrated. Although the studies related with integrated process planning & scheduling (IPPS) are increasingly popular, according to our best knowledge, there is no study researching the integration of process planning and authorizing. This study aims to call attention to the integration of process planning and authorizing through presenting a novel model that is called integrated process planning & authorizing (IPPA). Primary implementation results of IPPA demonstrate that making the integration and hence gaining advantage through integration are pertinent. SMEs can especially get in favour of IPPA because of its slight dependence on (professional) software support

Self-assembled semiconductor microlaser based on colloidal nanoplatelets

A semiconductor microsphere laser based on colloidal nanoplatelets is demonstrated comprising a micron-sized supraparticle obtained by self-assembly of core/shell CdSe/ CdS nanoplatelets with peak luminescence at 660nm. It shows multimode laser emission between 665 and 695nm with threshold at 200 nJ (28 ± 17 mJ.cm -2 )