In recent times, big data classification has become a hot research topic in various domains, such as healthcare, e-commerce, finance, etc. The inclusion of the feature selection process helps to ...improve the big data classification process and can be done by the use of metaheuristic optimization algorithms. This study focuses on the design of a big data classification model using chaotic pigeon inspired optimization (CPIO)-based feature selection with an optimal deep belief network (DBN) model. The proposed model is executed in the Hadoop MapReduce environment to manage big data. Initially, the CPIO algorithm is applied to select a useful subset of features. In addition, the Harris hawks optimization (HHO)-based DBN model is derived as a classifier to allocate appropriate class labels. The design of the HHO algorithm to tune the hyperparameters of the DBN model assists in boosting the classification performance. To examine the superiority of the presented technique, a series of simulations were performed, and the results were inspected under various dimensions. The resultant values highlighted the supremacy of the presented technique over the recent techniques.
The Internet has been widely used in these years and in recent years, it is still showing continuous growth. The Internet has become an important means of online transactions and services. This study ...examines the impact of e-commerce functions on people's willingness to purchase by telling American e-commerce giant Amazon and China's largest online merchants.
Amazon is the largest online marketplace operator in Germany. It also offers logistics services for online retailers and is one of the largest parcel carriers. Its position as an online marketplace ...operator gives Amazon the opportunity to combine its parcel and logistics services with advantages in its marketplace. Indeed, it may be able to leverage the market power it has in the online marketplace sector in the parcel and logistics markets. Recently, the European Commission requested a commitment from Amazon to prevent undue favouritism towards, among others, marketplace sellers that use Amazon's logistics and delivery services. It remains to be seen to what extent further interventions will be required. Amazon ist der grosste Onlinemarktplatzbetreiber in Deutschland. Zudem bietet es fur Onlinehandler Logistikdienstleistungen an und gehort zu den grossten Paketdienstleistern. Die Position als Onlinemarktplatzbetreiber bietet Amazon die Moglichkeit, seine Paket- und Logistikdienstleistungen mit Vorteilen auf seinem Marktplatz zu verknupfen. Es konnte in der Lage sein, eine moglicherweise im Bereich der Onlinemarktplatze bestehende Marktmacht in die Paket- und Logistikmarkte zu ubertragen. Die EU-Kommission hat jungst ein Verpflichtungsangebot von Amazon erwirkt, mit dem eine unangemessene Begunstigung unter anderem der Marktplatzverkaufer, die seine Logistik- und Lieferdienste nutzen, verhindert werden soll. Es bleibt abzuwarten, inwieweit zukunftig weitere Eingriffe notwendig sind.
This article has been retracted from publication in the Taylor & Francis journal, Acta Agriculturae Scandinavica, Section B - Soil & Plant Science.
Following publication, concerns were raised by ...multiple third-parties around the content of the special issue and the decision-making process.
Following an investigation by the Taylor & Francis Publishing Ethics & Integrity team in full cooperation with the Editor-in-Chief, it was confirmed that this article included in Special Issue titled "
Envisage Computer Modelling and Statistics for Agriculture", guest edited by Gunasekaran Manogaran was not peer-reviewed appropriately, in line with the Journal's peer review standards and policy.
As the stringency of the peer review process is core to the integrity of the publication process, the Editor and Publisher have decided to retract all of the articles within the above-named Special Issue.
The journal has not confirmed if the authors were aware of this compromised peer review process.
The journal is committed to correcting the scientific record and will fully cooperate with any institutional investigations into this matter. The authors have been informed of this decision.
We have been informed in our decision-making by our policy on publishing ethics and integrity and the COPE guidelines.
The purpose is to explore the factors affecting consumers’ purchase intention from the massive live broadcast of agricultural products e-commerce, and explore the evolution mechanism from consumers’ ...psychological contract to purchase intention in the live broadcast of agricultural products e-commerce, so as to provide decision-making basis for improving the delivery effect of agricultural products e-commerce. In the first study, through text analysis of live broadcast barrage, the influencing factors of consumers’ purchase intention are explored. In the second study, the structural equation model is constructed with the influencing factors as independent variables, the psychological contract as intermediary variables, the involvement degree as regulatory variables, and the purchase intention as dependent variables to explore the evolution mechanism of the consumer’s psychological contract to the purchase intention in the live broadcast of agricultural products e-commerce. The first study found that the factors influencing consumers’ purchase intention are the content of the anchor, the content of the product, the scene atmosphere of the live room and the third-party guarantee and service. The second study found that anchor attraction, logistics service and other factors positively affect the relationship type psychological contract, while anchor professionalism, organic certification and service positively affect the transaction type psychological contract; The relational psychological contract affects consumers’ purchase intention through influencing the transactional psychological contract. The psychological contract plays a part of the mediating role in the path that the live broadcast content of agricultural products affects the purchase intention.
Objetivo do estudo: O artigo apresenta um estudo exploratório de um modelo conceitual com o objetivo de identificar os principais fatores que antecedem a lealdade dos consumidores no varejo de ...e-commerce.Metodologia do estudo: Especificamente, propomos que o efeito mediador serial múltiplo da confiança e comprometimento ajudam a responder a relação causal da qualidade no valor percebido. Além disso, atestamos o poder de moderação da confiança que modifica sistematicamente a forma dos relacionamentos com a variável critério. Os dados foram coletados de consumidores de varejo on-line com a aplicação de um survey junto as principais redes sociais. As análises empíricas foram realizadas usando uma regressão múltipla no SPSS e PROCESSv3.5. Principais resultados: Os resultados analíticos mostram que o ambiente do e-commerce é muito sensível em nível de qualidade, valor percebido, satisfação e lealdade dos clientes. As variáveis de controle na moderação revelam que a percepção dos consumidores, como a experiência, está diretamente confrontada com a interface da empresa. Contribuições teóricas/metodológicas: Para as compras de baixo valor no varejo do e-commerce, os consumidores estão mais propensos a assumir riscos do que na importância da qualidade percebida. Já produtos de maiores custos, os recursos percebidos pela interface têm um impacto direto na decisão de compra e na lealdade. Relevância/originalidade: O artigo usa temas e conceitos para conceituar a lealdade do consumidor. Assim, o estudo inova ao investigar o efeito mediador e moderador na compreensão da lealdade no ambiente do e-commerce no Brasil contribuindo com os resultados da literatura internacional.
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