60 research outputs found

    An analysis of fake social media engagement services

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    Fake engagement services allow users of online social media and other web platforms to illegitimately increase their online reach and boost their perceived popularity. Driven by socio-economic and even political motivations, the demand for fake engagement services has increased in the last years, which has incentivized the rise of a vast underground market and support infrastructure. Prior research in this area has been limited to the study of the infrastructure used to provide these services (e.g., botnets) and to the development of algorithms to detect and remove fake activity in online targeted platforms. Yet, the platforms in which these services are sold (known as panels) and the underground markets offering these services have not received much research attention. To fill this knowledge gap, this paper studies Social Media Management (SMM) panels, i.e., reselling platforms¿often found in underground forums¿in which a large variety of fake engagement services are offered. By daily crawling 86 representative SMM panels for 4 months, we harvest a dataset with 2.8 M forum entries grouped into 61k different services. This dataset allows us to build a detailed catalog of the services for sale, the platforms they target, and to derive new insights on fake social engagement services and its market. We then perform an economic analysis of fake engagement services and their trading activities by automatically analyzing 7k threads in underground forums. Our analysis reveals a broad range of offered services and levels of customization, where buyers can acquire fake engagement services by selecting features such as the quality of the service, the speed of delivery, the country of origin, and even personal attributes of the fake account (e.g., gender). The price analysis also yields interesting empirical results, showing significant disparities between prices of the same product across different markets. These observations suggest that the market is still undeveloped and sellers do not know the real market value of the services that they offer, leading them to underprice or overprice their services.This work was supported by the EU Horizon 2020 Research and Innovation Program under Grant agreement no. 101021377 (TRUST aWARE ); the Spanish grants ODIO (PID2019-111429RB-C21 and PID2019-111429RB-C22), and the Region of Madrid grant CYNAMON-CM (P2018/TCS-4566), co-financed by European Structural Funds ESF and FEDER

    New Concepts for Efficient Consumer Response in Retail Influenced by Emerging Technologies and Innovations

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    The retail industry is continuously confronted with new challenges and experiences a transformation from a supplier’s market to a buyer's market. It is, thus, essential for the retail industry to consequently focus on, anticipate and fulfil consumer’s demands. Technologies and innovative business solutions can help to support to establish a required customer experience and, thereby, gain a competitive advantage. A multitude of new services and products, channels as well as players can already be identified which drive the transformation. Therefore, retailers need to understand current trends and technologies and identify as well as implement relevant solutions for their transformation since otherwise, new players will dominate the market. Hence, this dissertation aims to review and analyse new technologies which are coupled with innovative business activities in order to provide customer-centric retailing. For this purpose, this dissertation consists of five articles and derives four major contributions which introduce different approaches to establishing consumer satisfaction. Firstly, a core technology for retail is artificial intelligence (AI) which can be meaningful applied along the entire value chain and improve retailers’ positions. Two focus areas have been identified in this context which are (i) the optimisation of the entire retail value chain with the help of AI with the aim to derive transparency and (ii) the improvement of consumer satisfaction and relationship. Secondly, focussing on the consumer-retailer relationship in the digital era, a concept with a data architecture is proposed based on a real use case. The outcome was that a specific customer orientation based on data can increase the brand value and sales volume. Thirdly, the work presents that new shopping concepts, named unmanned store concepts, gain continuous growth. Unmanned store concepts employ a variety of new technologies, are characterised by attributes of speed, ease, as well as comfort, and are deemed to be the new ideal of the expectations of modern buyers. Two different directions have been deeper analysed: (i) walk-in stores and (ii) automated vending machines. The critical success factors for the usage of unmanned store solutions are distance as well as high consumer affinity for innovations. In times of the COVID-19 pandemic, which has a huge impact on retail, a continuous innovation capability still needs to be established. Finally, this work introduces a tool for systematic innovation management considering the current circumstances. Taken as a whole, this dissertation with its five articles deals with significant research questions which have not been approached so far. Thereby, the literature is extended by the introduction of novel insights and the provision of a deeper understanding of how retailers can transform their business into a more consumer-oriented way

    PromotionLens: Inspecting Promotion Strategies of Online E-commerce via Visual Analytics

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    Promotions are commonly used by e-commerce merchants to boost sales. The efficacy of different promotion strategies can help sellers adapt their offering to customer demand in order to survive and thrive. Current approaches to designing promotion strategies are either based on econometrics, which may not scale to large amounts of sales data, or are spontaneous and provide little explanation of sales volume. Moreover, accurately measuring the effects of promotion designs and making bootstrappable adjustments accordingly remains a challenge due to the incompleteness and complexity of the information describing promotion strategies and their market environments. We present PromotionLens, a visual analytics system for exploring, comparing, and modeling the impact of various promotion strategies. Our approach combines representative multivariant time-series forecasting models and well-designed visualizations to demonstrate and explain the impact of sales and promotional factors, and to support "what-if" analysis of promotions. Two case studies, expert feedback, and a qualitative user study demonstrate the efficacy of PromotionLens.Comment: IEEE Transactions on Visualization and Computer Graphics (Proc. IEEE VIS 2022

    Axmedis 2005

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    The AXMEDIS conference aims to promote discussions and interactions among researchers, practitioners, developers and users of tools, technology transfer experts, and project managers, to bring together a variety of participants. The conference focuses on the challenges in the cross-media domain (which include production, protection, management, representation, formats, aggregation, workflow, distribution, business and transaction models), and the integration of content management systems and distribution chains, with particular emphasis on cost reduction and effective solutions for complex cross-domain problems

    Big Data Security (Volume 3)

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    After a short description of the key concepts of big data the book explores on the secrecy and security threats posed especially by cloud based data storage. It delivers conceptual frameworks and models along with case studies of recent technology

    Past, present, and future research on self-service merchandising: A co-word and text mining approach

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    Purpose: This study aims to discern emerging trends and provide a longitudinal perspective on merchandising research by identifying relationships between merchandising-related subdomains/themes. Design/methodology/approach: We sourced 657 merchandising-related articles published since 1960, from the Scopus database and 425 from Web of Science. After processing and normalizing the data, we performed co-word and thematic network analyses. Taking a text mining approach, we used topic modeling to identify a set of coherent topics characterized by the keywords of the articles. Findings: We identified the following merchandising-related themes: branding, retail, consumer, behavior, modeling, textile and clothing industry, and visual merchandising. Although visual merchandising was the first type of merchandising to be used in-store, only recently has it become an emerging topic in the academic literature. There has been a further trend over the last decade to understand the adoption of simulation technology, such as computer-aided design, particularly in supply chain management in the clothing industry. These and other findings contribute to our discussion of the merchandising concept, approached from an evolutionary perspective. Research limitations/implications: The conclusions of the study hold implications at the intersection of merchandising, sectors, new technologies, research methodologies, and merchandising-practitioner education. Research trends suggest that, in the future, virtual reality and augmented reality using neuroscientific methods will be applied to the emerchandising context. Practical implications: The different dimensions of merchandising can be used to leverage store managers’ decision-making process toward an integrated store-management strategy. In particular, by adopting loyalty merchandising tactics, the store can generate emotional attachment among consumers, who will perceive its value and services as unique, thanks to merchandising items designed specifically with that aim in mind. The stimulation of unplanned purchases, the strategic location of products and duration of each merchandising activity in the store, the digitalization of merchandising, and the application of findings from neuroscience studies are some of the most relevant practical applications. Originality/value: The study provides the first-ever longitudinal review of the state of the art in merchandising research, taking a holistic perspective of this field of knowledge spanning a 60-year period. The work makes a valuable contribution to the development of the marketing discipline

    Past, present, and future research on self-service merchandising: A co-word and text mining approach

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    Purpose This study aims to discern emerging trends and provide a longitudinal perspective on merchandising research by identifying relationships between merchandising-related subdomains/themes. Design/methodology/approach This study sourced 657 merchandising-related articles published since 1960, from the Scopus database and 425 from Web of Science. After processing and normalizing the data, this study performed co-word and thematic network analyses. Taking a text mining approach, this study used topic modeling to identify a set of coherent topics characterized by the keywords of the articles. Findings This study identified the following merchandising-related themes: branding, retail, consumer, behavior, modeling, textile and clothing industry and visual merchandising. Although visual merchandising was the first type of merchandising to be used in-store, only recently has it become an emerging topic in the academic literature. There has been a further trend over the past decade to understand the adoption of simulation technology, such as computer-aided design, particularly in supply chain management in the clothing industry. These and other findings contribute to the discussion of the merchandising concept, approached from an evolutionary perspective. Research limitations/implications The conclusions of this study hold implications at the intersection of merchandising, sectors, new technologies, research methodologies and merchandising-practitioner education. Research trends suggest that, in the future, virtual reality and augmented reality using neuroscientific methods will be applied to the e-merchandising context. Practical implications The different dimensions of merchandising can be used to leverage store managers’ decision-making process toward an integrated store-management strategy. In particular, by adopting loyalty merchandising tactics, the store can generate emotional attachment among consumers, who will perceive its value and services as unique, thanks to merchandising items designed specifically with that aim in mind. The stimulation of unplanned purchases, the strategic location of products and duration of each merchandising activity in the store, the digitalization of merchandising and the application of findings from neuroscience studies are some of the most relevant practical applications. Originality/value This study provides the first-ever longitudinal review of the state of the art in merchandising research, taking a holistic perspective of this field of knowledge spanning a 60-year period. The work makes a valuable contribution to the development of the marketing discipline.info:eu-repo/semantics/acceptedVersio

    Producción científica y evolución conceptual del merchandising durante las últimas seis décadas. Un estudio bibliométrico

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    This article shows the results of a bibliometric analysis focused on the academic and professional community interested in the study of self-service merchandising or marketing at the point of sale. The objective is to identify past and current issues, predict emerging trends and provide a longitudinal perspective on the research that took place between 1960 and 2019, from around 700 articles taken from the Scopus bibliographic database. Therefore, this approach provides the most comprehensive analysis of the history of point-of-sale marketing in the past six decades. Some of the findings found in the past decade are characterized by the study of simulators such as CAD, and supply chain management applied to the textile sector. Although visual merchandising is not new, it is an emerging theme in this field of research that will gradually integrate the role of virtual merchandising, the atmosphere of the establishment and the application of window dressing techniques. In this decade, advertising appear as a general or transversal topic to others topics. And the future will go through the application of virtual reality and augmented reality to the case of e-merchandising. Conclusions and future lines of research advanced to advance knowledge and understanding of the academic literature on marketing or point-of-sale marketing.En este artículo aparecen los resultados de un análisis bibliométrico centrado en la comunidad académica y profesional interesada por el estudio del merchandising de autoservicio (self-service merchandising) o marketing en el punto de venta. El objetivo es identificar los temas pasados y actuales, predecir las tendencias emergentes y proporcionar una perspectiva longitudinal sobre la investigación que ha tenido lugar entre 1960 y 2019, a partir de unos 700 artículos extraídos de la base bibliográfica Scopus. Por tanto, este enfoque proporciona el análisis más exhaustivo de la historia del merchandising en las últimas seis décadas. Algunos de los hallazgos muestran que la década pasada se caracterizó por el estudio de simuladores como CAD, y de la gestión de la cadena de suministro aplicado al sector textil. Si bien, el merchandising visual no es algo nuevo, se trata una temática emergente en este campo de investigación que irá integrando el papel del merchandising virtual, la atmósfera del establecimiento y la aplicación de técnicas de escaparatismo. En esta década, la publicidad aparece como un tema general o transversales a otras temáticas. Y el futuro pasará por la aplicación de la realidad virtual y la realidad aumentada al caso del e-merchandising. Las conclusiones y futuras líneas de investigación contribuyen a avanzar en el conocimiento y la comprensión de la literatura académica sobre el merchandising o el marketing en el punto de venta

    Menedzsment válaszok a XXI. század gazdasági és társadalmi kihívásaira

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