ترتیب بر اساس: جدیدترینپربازدیدترین
فیلترهای جستجو: فیلتری انتخاب نشده است.
نمایش ۴۱ تا ۶۰ مورد از کل ۲٬۹۱۷ مورد.
۴۱.

An Analytical Framework for Evaluating the Impact of Digital Transformation Technologies on Business Performance: A Natural Language Processing Approach(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Digital Transformation Technology Business performance thematic analysis Text Analytics Dynamic Capability Theory

حوزه‌های تخصصی:
تعداد بازدید : ۱۵۲ تعداد دانلود : ۱۵۲
Extensive technological advancements have highlighted the importance of digital transformation in improving business performance. While prior research on this topic has been done in the information systems and business management domains, it has been limited to specific areas. Therefore, it is crucial to evaluate the impact of digital transformation comprehensively. This research aims to systematically identify critical themes, significant topics, main concepts, and trend priorities. The study involved the analysis of 474 research papers from 2015 to 2024 from reputable databases such as SCOPUS, Web of Science, and IEEE Xplore. First, thematic analysis identified the main themes and interpreted their relationships. Identified themes refer to technological changes at the operational and strategic levels through data analytics, digitalization, collaborative learning, and digital interaction. Realizing that digital transformation leads to value creation, improved service quality, customer experience, and long-term communication in digital ecosystems. These findings were related to dynamic capability theory concepts and compared with theory constructs like sensing, seizing, and transforming. Next, text mining techniques were used for deeper investigation, including word cloud, topic modeling (Latent Dirichlet Allocation), and text clustering (K-means). Findings were categorized into three perspectives: business, customer, and systemic, highlighting the influential role of digital technologies, particularly artificial intelligence (AI) capabilities. Moreover, trend analysis presented research priorities using VOSviewer. Finally, research innovation involved designing thematic networks and examining the relevance of significant topics as a research artifact with subtle differences compared to the conducted research. This novel approach provides five targeted propositions to audiences for future research.
۴۲.

ارزیابی سطح بلوغ مدیریت دانش در آرشیوهای دیداری شنیداری ایران(مقاله علمی وزارت علوم)

کلیدواژه‌ها: آرشیوهای دیداری شنیداری بلوغ مدیریت دانش مدل بلوغ مدیریت دانش اِی پی کیوسی مدیریت دانش

حوزه‌های تخصصی:
تعداد بازدید : ۵۵ تعداد دانلود : ۷۹
هدف: ارزیابی سطح بلوغ مدیریت دانش در آرشیوهای دیداری شنیداری کشور بر اساس مدل سطح بلوغ مدیریت دانش اِی پی کیوسی. مدیریت دانش در این مراکز نقش مهمی در حفظ میراث دیداری شنیداری کشور ایفا می کند، اما وضعیت بلوغ آن تاکنون مورد بررسی جامع قرار نگرفته است. روش پژوهش: این پژوهش از نوع پژوهش کمّی و روش گردآوری داده ها از نوع میدانی با راهبرد شیوه های ترکیبی و هدف تحقیق و توسعه (اکتشاف و فهم) با ابزار پرسشنامه استاندارد مدل سطح بلوغ مدیریت دانش اِی پی کیوسی است. جامعه پژوهش ، 11 سازمان بزرگ آرشیوی دیداری شنیداری در کشور است که بر اساس سرشماری انتخاب شدند. تحلیل آماری داده ها با استفاده از آزمون فریدمن و آزمون t تک نمونه ای انجام شد تا رتبه بندی معیارهای بلوغ مدیریت دانش مشخص شود. همچنین برای تبیین انتخاب مدل سطح بلوغ مدیریت دانش اِی پی کیوسی از بین سایر مدل های بلوغ مدیریت دانش، از روش تاپسیس استفاده شد. یافته ها: در ارزیابی سطح بلوغ مدیریت دانش بر اساس مدل اِی پی کیوسی، مراکز آرشیوی سازمان صداوسیما (اداره کل آرشیو، آرشیو فضای مجازی و آرشیو پرس تی وی)؛ کتابخانه و مرکز اسناد مجلس شورای اسلامی؛ مرکز اسناد و موزه های صنعت نفت؛ مرکز اسناد انقلاب اسلامی؛ مرکز اسناد و کتابخانه آستان قدس رضوی؛ آرشیو ارتش جمهوری اسلامی و آلبوم خانه کاخ گلستان در سطح یک؛ پژوهشکده تاریخ معاصر ( مؤسسه مطالعات تاریخ معاصر ایران) در سطح دوم؛ سازمان اسناد و کتابخانه ملی ایران (آرشیو ملی) در سطح سوم رتبه بندی شدند. هیچکدام از مراکز آرشیوی امتیاز سطح چهارم و سطح پنجم را کسب نکردند. نتیجه گیری: با توجه به یافته های این مطالعه در خصوص رتبه بندی سطح بلوغ مدیریت دانش در آرشیوهای دیداری شنیداری بزرگ کشور، می توان گفت که اکثر سازمان های آرشیوی دیداری شنیداری نیازمند برنامه ای جامع در حوزه مدیریت دانش به منظور آگاهی رسانی و شناسایی فرصت ها برای ارتقاء سطح بلوغ مدیریت دانش هستند. دانش حیاتی در این گونه سازمان ها نیازمند توجه و شناسایی است. چراکه این نوع دانش از نوع تخصصی و نیازمند مدیریت ویژه برای حفظ میراث دیداری و شنیداری کشور است. اصالت/ارزش: این مطالعه نخستین پژوهش در زمینه ارزیابی سطح بلوغ مدیریت دانش در آرشیوهای دیداری شنیداری کشور است که مبتنی بر مدل سطح بلوغ مدیریت دانش مرکز بهره وری و کیفیت آمریکا و با پرسشنامه استاندارد این مدل انجام می شود.
۴۳.

Determinants of Online Impulse Buying Among Young Adults in Kuala Lumpur, Malaysia: A Study on Eco-Friendly Food and Beverage Utensils(مقاله علمی وزارت علوم)

نویسنده:

کلیدواژه‌ها: Online Impulse buying Eco-Friendly Products Sustainability Young adults

حوزه‌های تخصصی:
تعداد بازدید : ۲۰۰ تعداد دانلود : ۱۵۱
Eco-friendly product usage is a defining trend in consumer purchase intentions during this decade. Younger, tech-savvy consumers are often more sensitive to environmental concerns when purchasing products due to the abundance of information available on social media platforms. In the food and beverage industry, this trend has led many younger consumers to prefer purchasing eco-friendly, sustainable cutlery for food and beverage consumption. With online social commerce platforms selling eco-friendly utensils readily available, a larger group of consumers, primarily young adults, seem to purchase these products impulsively due to various factors. The four independent variables proposed in this study that seem to influence the online impulse buying behavior of young adults toward these eco-friendly products are fear, serendipity, electronic word of mouth (eWOM), and website quality. Convenience sampling was utilized to gain a greater understanding of the targeted consumer group, using a 5-item Likert scale to collect data from respondents. The validity and reliability of the questionnaire items were further confirmed using statistical methods, namely average variance extracted (AVE), composite reliability (CR), and Cronbach’s alpha. The hypotheses were tested using AMOS software (version 24) through confirmatory factor analysis (CFA) to tabulate the results. Based on the study conducted, it is concluded that fear and eWOM do influence the online impulse buying of eco-friendly food utensils among young adults in Kuala Lumpur. It is further suggested that elements such as fear and eWOM play a significant role in online impulse purchases of eco-friendly utensils, as young adults rely heavily on social media marketing. This reliance contributes to these consumers’ growing concern for their future, prompting them to be more environmentally conscious.
۴۴.

Enhancing Privacy and Efficiency Techniques in Federated Learning Systems: Applications in Healthcare, Finance, and Smart Devices(مقاله علمی وزارت علوم)

نویسنده:

کلیدواژه‌ها: Federated Learning (FL) Privacy Enhancement Adaptive Federated Optimization Heterogeneity Scalability Federated Averaging

حوزه‌های تخصصی:
تعداد بازدید : ۸۵ تعداد دانلود : ۷۶
Federated Learning (FL) has emerged as a revolutionary technique for distributed machine learning for training a model on shared data without sharing the data itself. Nevertheless, privacy-related concerns and scalability difficulties remain a problem. This paper discusses the state-of-the-art works to improve the privacy and convergence at FL frameworks for targeted healthcare and financial applications, as well as smart devices. It focuses on methodologies that preserve user privacy, such as differential privacy, homomorphic encryption, secure multi-party computation, and methods that enhance the model’s efficiency, including model compression, communication optimization, and adaptive optimization algorithms. To overcome these challenges, this study helps in the future design of FL systems for vital domains with high scalability.
۴۵.

Employability and Digitalization: A Bibliometric Analysis with Future Research Directions(مقاله علمی وزارت علوم)

کلیدواژه‌ها: employability digitalization Industry 4.0 SPAR-4-SLR

حوزه‌های تخصصی:
تعداد بازدید : ۱۴۲ تعداد دانلود : ۱۰۶
Digitalization is rapidly changing employment dynamics, demanding an understanding of how digital technologies impact employability. This study provides a comprehensive analysis of the relationship between digitalization and employability through a hybrid approach combining bibliometric analysis with a systematic theoretical review, based on the 4Ws framework (What, When, Where, and Why). Through the examination of thematic trends spanning the years 2010 to 2023, this study reveals significant domains in which digital transformation is influencing employability. The results underscore three primary thematic categories: the evolution of employment models catalyzed by digital technologies, the shift from Industry 4.0 to Industry 5.0, and theoretical advancements that concentrate on the informal economy alongside comparative analyses. This research contributes to addressing theoretical gaps regarding the lasting impact of digitalization on labor markets, with a particular focus on skill acquisition and job security. It presents targeted approaches for scholars, educators, and industry stakeholders to improve employability amid technological change. These include creating adaptive skill development programs, using AI in workforce management, and encouraging policies that enhance workers’ adaptability to new digital innovations. By presenting clear insights on how digitalization may affect employability, this research aims to enable more informed decisions for designing educational strategies and labor policies.
۴۶.

The Intersection of Quantum Computing, Artificial Intelligence and Financial Risks: A Bibliometric Analysis of the Modern Financial Sector(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Quantum Computing Financial risk Artificial Intelligence bibliometric analysis

حوزه‌های تخصصی:
تعداد بازدید : ۱۸۲ تعداد دانلود : ۹۶
The finance sector is experiencing substantial technological disruption as Quantum Computing and Artificial Intelligence (AI) continue to advance at a rapid pace. This study employs bibliometric analysis, specifically VOS Viewer, to investigate the academic environment at the intersection of financial risk, AI, and quantum computation. From 2014 to 2023, a comprehensive bibliometric analysis was performed on a total of 145 journal articles that were published in Scopus and Web of Sciences (WoS). Articles are categorized based on their homogeneity in the disciplines of Quantum Computing, Financial Risk, and AI, as well as their interdisciplinary compositions. The results, which include authorship trends, keyword dynamics, and linked works, are analyzed and presented. This extensive bibliometric analysis offers critical insights into contemporary research and pinpointing areas necessitating further exploration. As quantum computers and AI algorithms become more sophisticated, this paper investigates the potential weaknesses and issues that financial institutions may encounter. By analyzing the intersection of two transformative technologies, the report offers critical insights into the discourse surrounding the safeguarding of financial systems in the quantum era. The analysis not only enhances the quality of the review but also directs researchers to significant papers and identifies regions of publications, thereby facilitating a more comprehensive understanding of the research environment.
۴۷.

Predicting Heart Disease Using Automated Machine Learning Based on Genetic Algorithms(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Heart Disease Prediction Automatic Machine Learning Genetic Algorithms TPOT Framework

حوزه‌های تخصصی:
تعداد بازدید : ۱۵۶ تعداد دانلود : ۹۶
This study aims to apply automatic machine-learning approaches using genetic algorithms to enhance heart disease prediction. Heart disease has remained the major cause of mortality in the world, necessitating an effective and timely diagnosis. Most current diagnostic and assessment processes are lengthy and expensive, relying heavily on clinical expert knowledge. To help address these issues, machine learning approaches, which derive their utility from examining substantial datasets for the recognition of patterns, have emerged as a potential solution, providing solutions beyond those achievable by human recognition alone. Genetic algorithms are also suited to addressing these issues as they mimic natural evolution to perfect high-caliber machine-learning models, feature selection, and parameter selection in machine-learning applications. This study examines the utilization of genetic algorithms working alongside AutoML frameworks to improve accuracy in heart disease predictions. Reducing to the best combination of attributes and the optimum parameters for each attribute is a time-consuming task, so automating this aspect of the process allows for more accurate and prompt predictions, consequently reducing the manual work. The AutoML approach followed in this research is TPOT, which uses genetic algorithms to ascertain optimally designed machine-learning pipelines. The application of AutoML, together with genetic algorithms, is the most prominent finding that yields a significant improvement in the quality of the predictions for heart disease compared to the traditional assessment approaches, with an accuracy of 93.8%. This approach will enhance diagnostic accuracy and enable early diagnosis, thereby reducing the likelihood of misdiagnoses or ineffective treatments and ultimately lowering associated costs.
۴۸.

Service Quality Performance of E-Hailing Services in Sarawak, Malaysia(مقاله علمی وزارت علوم)

نویسنده:

کلیدواژه‌ها: public transportation E-hailing industry PLS-SEM Sarawak

حوزه‌های تخصصی:
تعداد بازدید : ۲۷۹ تعداد دانلود : ۱۷۰
With the advancement of communication technology, e-hailing services are becoming more widespread in Malaysia. Even though e-hailing services offer relative advantages compared to other types of public transport, research on the service quality aspects and customer satisfaction is essential to ensure customers receive worthwhile service with the money they spend on the services. Therefore, the growth of the e-hailing sector in Malaysia has drawn attention from the government, service providers, passengers, and even academics to the issues of service quality and customer satisfaction. Much research on service quality has been conducted in Malaysia; however, limited research has yet to be done on e-hailing services specifically for the state of Sarawak (East Malaysia) compared to peninsular areas. Thus, this research aims to measure the service quality performance of e-hailing in Sarawak and investigate the factors influencing passenger satisfaction. Three hundred ninety-two e-hailing users voluntarily participated in the survey, which was conducted in 2023. The partial least squares structural equation modeling (PLS-SEM) was performed to assess the measurement and structural model. The analysis revealed that vehicle condition, customer service, and reliability have a significant one-percent relationship with passenger satisfaction. To ensure e-hailing vehicles are always in good condition, e-hailing companies and government agencies must make it mandatory for e-hailing cars to be maintained periodically. Next, the driver should improve communication skills and show a good attitude to provide excellent customer service. Besides, prompt response to customer orders is a must to ensure e-hailing services are reliable public transportation.
۴۹.

The Impact of Smartphone Users’ Digital Literacy on Information Security Protection Intentions(مقاله علمی وزارت علوم)

کلیدواژه‌ها: digital Literacy Information security protection Second-order factor model Smartphone

حوزه‌های تخصصی:
تعداد بازدید : ۱۱۶ تعداد دانلود : ۹۹
In the digital economy era, the widespread use of smartphones has brought about new information security threats, increasing the risk of data leakage from personal devices. Digital literacy, defined as the skills and knowledge needed to navigate digital life effectively, offers new perspectives and motivation for safeguarding personal information security. This study investigates the relationship between digital literacy and smartphone users’ intention to protect their information security. Drawing on Protection Motivation Theory (PMT) and Technology Threat Avoidance Theory (TTAT), a theoretical model was developed to examine both the direct and indirect effects of digital literacy on users’ information security protection intentions. Questionnaire data from 372 smartphone users in China were analyzed using Structural Equation Modeling (SEM). The results reveal that digital literacy has a significant positive impact on users’ response efficacy, self-efficacy, and their intention to protect information security. Moreover, digital literacy influences protection intention indirectly through self-efficacy and response efficacy. However, perceived threat, although positively influenced by digital literacy, does not have a significant effect on users’ protection intention. This study offers valuable insights for policymakers, educators, and businesses in promoting a secure mobile environment and provides practical recommendations for enhancing personal information security in the digital age.
۵۰.

Consumers’ Impulse Buying Behavior on E-Commerce Shopping Platforms: 7C Framework and Emotions(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Impulse Buying Behavior 7C Framework emotions SOR

حوزه‌های تخصصی:
تعداد بازدید : ۳۶۴ تعداد دانلود : ۱۶۲
The world of digital marketing has been fast advancing in recent times. Marketers have developed various practices to attract consumers to their products and services. Online shopping applications have introduced different methods to encourage consumer impulse buying. However, past literature has overlooked the 7C framework, despite its introduction during the early stages of e-commerce development. Thus, this study aims to examine the dimensions of digital marketing and the mediating role of emotions on impulse buying behavior in e-commerce shopping platforms. This study used the Stimulus-Organism-Response (SOR) framework as the underpinning theory for developing the proposed framework. The 7Cs framework, serving as the stimulus (S), includes content, context, commerce, customization, connection, communication, and community. Emotions represent the organism (O), while impulse buying behavior is the response (R). A survey was conducted to collect data from 331 shoppers from two major online platforms in Malaysia. Exploratory Factor Analysis was performed and revealed six dimensions of digital marketing. Furthermore, it was found that emotions partially mediate the relationship of (a) context, (b) connection, and (c) commerce on impulse buying behavior. Emotions fully mediate the relationship between (a) communication and (b) customization on impulse buying behavior. This study enhances the understanding of the 7C framework, which is underexplored in the context of e-commerce. The 7C framework can be used to assess not only website design but also the design of e-commerce shopping platforms.
۵۱.

Utilizing Deep Learning for Aspect-Based Sentiment Analysis in Restaurant Reviews(مقاله علمی وزارت علوم)

کلیدواژه‌ها: deep learning text mining Sentiment Analysis Neural Network

حوزه‌های تخصصی:
تعداد بازدید : ۱۳۸ تعداد دانلود : ۱۲۹
Consumers rely on social media opinions to make product choices and purchases. With the popularity of web-based platforms like Tripadvisor, consumers express their opinions and feelings about food quality, service, and other aspects affecting restaurants through comments. Hence, analyzing these comments can be valuable for others to choose a restaurant or to improve and develop their products and brands. Sentiment analysis utilizes text mining methods to extract, identify, and study emotions and subjective perceptions. Since consumers can use comments to choose a restaurant, this study seeks to provide sentiment analysis of their reviews on the Tripadvisor website about Iranian restaurants. This study is applied in nature, aiming to analyze and manually label 4000 comments from the Tripadvisor website regarding restaurants in ten tourist cities across Iran. It uses a standard extended long short-term memory algorithm for sentiment analysis, a deep learning neural network, and Python text mining packages for modeling. The results indicate that the F-Measure for all aspects exceeds 80%, indicating sufficient efficiency and accuracy of the aspect-based sentiment analysis model for restaurant reviews. The most significant features for customers of Iranian restaurants are the food and the atmosphere. This study represents one of the initial efforts to analyze comments posted on the Tripadvisor website concerning Iranian restaurants. Business owners in the tourism industry, especially restaurant owners, can use the proposed model to automatically and quickly analyze customer feedback, improve performance, and gain a competitive edge. The proposed model can also assist users of online platforms in analyzing the opinions of others, enabling them to make informed decisions more efficiently.
۵۲.

Enhancing Fake News Detection by Attention-Based BiLSTM and Hybrid Whale-Multi-Verse Optimization(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Bidirectional LSTM deep learning Fake news detection Hierarchical Hybrid Op-timization Information Extraction

حوزه‌های تخصصی:
تعداد بازدید : ۸۲ تعداد دانلود : ۶۷
The proliferation of fake news, characterized by the dissemination of inaccurate information to deceive audiences, has become a pressing concern in recent times. Traditional approaches to phony news detection, often focused on analyzing Twitter content, are susceptible to noise and variations in input sequences, leading to suboptimal performance. To address these challenges, this study proposes a novel method called Multi-Head Attention-Hierarchical Bidirectional Long Short-Term Memory (MHA-HBiLSTM) Networks. Our approach involves two phases: training and testing, wherein we employ tweet pre-processing techniques such as stemming, punctuation removal, stop-word elimination, URL handling, and Twitter control removal. Features are represented using the Glove word embedding technique for experimental evaluation and comparison. The MHA-HBiLSTM model integrates multi-head attention and hierarchical concepts, allowing meaningful information extraction from Twitter data. Notably, our model utilizes dual-level attention mechanisms and a hierarchical structure, reflecting the inherent hierarchy in documents and prioritizing key material during document representation. The effectiveness of the proposed MHA-HBiLSTM algorithm is evaluated using the Whale & Multi-Verse (W-MVO) Optimizer approach, with tests conducted on Kaggle and FakeNewsNet datasets. Comparative analysis with traditional machine learning approaches and deep learning models demonstrates the superior performance of the MHA-HBiLSTM approach in fake news detection.
۵۳.

Sustainability Challenges of Lithium-Ion Battery Supply Chain: Evidence from the Indian Electric Vehicle Sector(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Electric vehicles Environmental impact Lithium-ion batteries recycling Sustainability

حوزه‌های تخصصی:
تعداد بازدید : ۳۱۲ تعداد دانلود : ۱۸۲
This study critically examines the sustainability challenges within the lithium-ion battery (LIB) supply chain in India's electric vehicle (EV) sector, an area of growing importance due to the rapid expansion of EV adoption. While LIBs are essential for EVs due to their high energy density and reliability, their production and disposal pose significant environmental, social, and economic sustainability challenges. These include resource depletion, environmental degradation, ethical concerns in raw material sourcing, and inefficient recycling processes. This study adopts a qualitative case study approach, focusing on three leading Indian automotive companies, to explore these challenges in depth. Data were collected through semi-structured interviews with key stakeholders involved in various stages of the LIB supply chain, including production, waste management, and recycling. Key findings reveal that the primary environmental challenge is the lack of advanced green technologies for recycling and disposal, leading to high water and energy consumption, as well as hazardous waste emissions. Social challenges include unsafe labor practices, particularly in raw material extraction, and a shortage of skilled labor in battery recycling operations. On the economic front, the reliance on imported raw materials, coupled with high production and recycling costs, undermines the sector’s sustainability and profitability. The research contributes to the literature by providing a comprehensive understanding of the environmental, social, and economic dimensions of sustainability in the LIB supply chain. It also offers practical insights for stakeholders and policymakers aiming to foster a greener and more sustainable EV sector in India.  
۵۴.

طراحی چارچوب مفهومی انتقال فناوری های پیشرفته در انقلاب صنعتی پنجم: رویکرد تحلیل مضمون(مقاله علمی وزارت علوم)

کلیدواژه‌ها: انتقال فناوری صنعت 5.0 فناوری های پیشرفته تحول دیجیتال

حوزه‌های تخصصی:
تعداد بازدید : ۱۲۰ تعداد دانلود : ۱۱۹
هدف: ظهور پارادایم صنعت 5.0 با تمرکز بر تعامل هوشمندانه انسان و ماشین، چالش های جدیدی را در فرآیند انتقال فناوری های پیشرفته ایجاد کرده است. هدف این پژوهش تبیین چارچوب مفهومی جامع برای انتقال فناوری های پیشرفته در پارادایم صنعت 5.0 است. روش پژوهش: این پژوهش با رویکرد پراگماتیسم و استراتژی استقرایی-قیاسی انجام شده است. از میان مقالات علمی منتشر شده بین سال های 2017 تا 2024 در پنج پایگاه داده معتبر، 84 مقاله با نمونه گیری هدفمند انتخاب شدند. داده ها با استفاده از رویکرد ترکیبی متن کاوی و تحلیل مضمون تحلیل شدند. در فاز کمی از الگوریتم های LDAو K-means برای خوشه بندی مفاهیم، و در فاز کیفی از روش تحلیل مضمون براون و کلارک استفاده شد. روایی یافته ها با استفاده از روش مثلث سازی و پایایی با محاسبه ضریب توافق کاپا (83/0) تأیید گردید. یافته ها: تحلیل متن کاوی به شناسایی پنج خوشه اصلی منجر شد که شامل فناوری های پیشرفته (54.4%)، انتقال فناوری (8.5%)، صنعت 5.0 (19.2%)، چالش ها و فرصت ها (11.4%) و سیاست گذاری و قوانین (6.6%) بودند. تحلیل مضمون منجر به شناسایی 40 مضمون اصلی و 163 مضمون فرعی شد که در قالب هشت مرحله اصلی انتقال فناوری دسته بندی شدند. این مراحل شامل شناسایی و گزینش، اکتساب، انطباق، جذب و تحلیل، کاربرد و بهره برداری، توسعه و بهبود، اشاعه، و یادگیری و نوآوری است. نتیجه گیری: موفقیت در انتقال فناوری های پیشرفته در صنعت 5.0 مستلزم ایجاد یک اکوسیستم پویا و تعاملی است که در آن عوامل فنی، سازمانی، انسانی و محیطی به طور همزمان مدیریت می شوند. اصالت/ارزش: این پژوهش برای نخستین بار با ترکیب رویکردهای متن کاوی و تحلیل مضمون، چارچوبی جامع برای انتقال فناوری در پارادایم صنعت 5.0 ارائه می دهد که فراتر از مدل های خطی موجود رفته و رویکردی اکوسیستمی ارائه می کند. این چارچوب می تواند مبنایی برای پژوهش های آتی در حوزه انتقال فناوری های پیشرفته و راهنمای عمل مدیران و سیاست گذاران باشد.
۵۵.

Incorporating Retroactive Operations in Large Temporal Databases Using Retroactive B-Tree(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Indexing Retroactive Query Answering Temporal Databases Retroactive B-Tree Persistent B-Tree Temporal Database Indexing Problem

حوزه‌های تخصصی:
تعداد بازدید : ۱۲۶ تعداد دانلود : ۶۱
Temporal databases, quickly rising in size, are distinguished by their capacity to maintain the older version of data objects against actions on them, allowing logical deletions. Queries for historical data are particularly costly due to the linear scanning of temporal versions. Temporal data structures like time-split B-Tree or multiversion B-Tree are working underlying the state-of-the-art temporal databases. So far, most efficient temporal data structures are partially persistent or fully persistent, but none of them support retroactive queries. On the other hand, efficient temporal indexing is required to address bulk loading in a real-life application. To the best of our knowledge, there is no efficient solution for bulk loading and updating retroactive index structures. This article seeks to offer a new data structure, the Retroactive B-Tree (RBT), to facilitate retroactive operations in temporal databases as well as bulk loading. It presents theoretical and empirical research and analysis of the suggested data structure and its relevant operations. The experiments were conducted to demonstrate the performance of the proposed retroactive B-Tree in terms of execution time, I/O complexity, space complexity, and bulk loading. The obtained results show that indexing with a buffer is the most powerful model for existing temporal databases for implementing a retroactive B-Tree. The tree of lists architecture is observed as an I/O efficient data structure for all variants of temporal indexing for large databases.
۵۶.

Adaptive Differential Privacy for Protecting User Confidential Information on Android Devices(مقاله علمی وزارت علوم)

نویسنده:

کلیدواژه‌ها: Android Security Data protection Confidential Information Data Leakage App Vul-nerabilities

حوزه‌های تخصصی:
تعداد بازدید : ۱۰۶ تعداد دانلود : ۷۸
The widespread adoption of Android phones has heightened concerns about user privacy. This research presents an Adaptive Privacy Management System (APMS) that integrates Machine Learning (ML) models with Differential Privacy techniques to enhance privacy protection. The APMS monitors application behavior and employs ML algorithms to detect anomalies and enable context-aware privacy enforcement. Differential Privacy ensures that sensitive data remains protected through the addition of noise and privacy-preserving computations. Experimental results demonstrate that the APMS achieves a 92.5% accuracy rate in detecting the privacy leakage. The anomaly detection model, using Random Forest, shows high accuracy (92.5%), recall (89.5%), and precision (73.9%), effectively identifying both normal and anomalous behaviors. Additionally, the impact of noise on data utility, controlled by the privacy budget (ε), is manageable. The results show that APMS is a robust system for safeguarding user confidential information, contributing to a more secure and privacy-centric Android ecosystem.
۵۷.

تجزیه و تحلیل بازگشت دانش بازنشستگان در زنجیره تأمین پالایشگاه اصفهان با رویکرد تلفیقی مدل سازی ساختاری تفسیری و مدل سازی معادلات ساختاری(مقاله علمی وزارت علوم)

کلیدواژه‌ها: بازگشت دانش بازنشستگان دانش زنجیره تأمین مدیریت دانش

حوزه‌های تخصصی:
تعداد بازدید : ۱۰۸ تعداد دانلود : ۹۳
هدف: علی رغم اهمیت دانش بازنشستگان در رفع پیچیدگی ها و چالش های مختلف در زنجیره تأمین پالایشگاه از جمله ریسک های ناشی از نوسانات قیمت نفت و بازار، عدم همکاری و هماهنگی میان اعضای زنجیره تأمین، چالش های نفتی همچون نشت و آتش سوزی و ...، در سالیان اخیر حجم قابل توجهی از دانش با بازنشسته شدن کارکنان خارج شده است. هدف از انجام پژوهش حاضر تجزیه و تحلیل بازگشت دانش بازنشستگان در زنجیره تأمین پالایشگاه اصفهان است. روش پژوهش: پژوهش حاضر از لحاظ هدف، کاربردی و از نظر ماهیت و روش، توصیفی- علی و از نظر شیوه گردآوری داده ها، مطالعه غیرآزمایشی از نوع پیمایشی مقطعی است. در ابتدا 12 عامل مؤثر بر بازگشت دانش بازنشستگان بر اساس مرور پیشینه پژوهش شناسایی و به تأیید خبرگان دانشگاهی و صنعتی (پالایشگاه اصفهان) رسید. به منظور ارائه مدل مفهومی پژوهش از رویکرد مدل سازی ساختاری تفسیری استفاده شده است. در این بخش ابتدا پرسشنامه مقایسات زوجی میان عوامل اثرگذار بر بازگشت دانش بازنشستگان در زنجیره تأمین پالایشگاه اصفهان طراحی شد. سپس با استفاده از روش نمونه گیری قضاوتی و نظرخواهی از 15 نفر از خبرگان دانشگاهی و صنعتی، نحوه ارتباط میان عوامل مؤثر بر بازگشت دانش بازنشستگان شناسایی و مدل مفهومی ارائه شد. به منظور تأیید یا رد مدل مفهومی از رویکرد مدل سازی معادلات ساختاری و نرم افزار Smart PLS3 استفاده شده است. با استفاده از روش نمونه گیری در دسترس تعداد 300 پرسشنامه میان کارکنان و مدیران پالایشگاه اصفهان توزیع که از این میان تعداد 243 پرسشنامه بازگشت داده شد. روایی پرسشنامه پژوهش با استفاده از روایی همگرا (ضرایب بار عاملی و معیار AVE) و روایی واگرا (جدول فورنل- لارکر) تأیید شده است. همچنین پایایی پرسشنامه پژوهش با استفاده از معیارهای آلفای کرونباخ و پایایی ترکیبی مورد تأیید قرار گرفته است. یافته ها: نتایج این پژوهش نشان داد که حمایت دولت با ضریب مسیر 495/0 و دانش و تجربه بازنشستگان با ضریب مسیر 416/0 بر حمایت مدیریت ارشد و حمایت مدیریت ارشد با ضریب مسیر 789/0 بر مشوق های مالی و با ضریب مسیر 854/0 بر مشوق های غیرمالی تأثیرگذار است. علاوه بر این نتایج پژوهش نشان داد که مشوق های مالی با ضریب مسیر 383/0 و مشوق های غیرمالی با ضریب مسیر 522/0 بر فرهنگ حفظ و ارتقاء دانش سازمانی، فرهنگ حفظ و ارتقاء دانش سازمانی با ضریب مسیر 817/0 بر استفاده از فناوری های پیشرفته، استفاده از فناوری های پیشرفته بر مطلوبیت محیط کار با ضریب مسیر 787/0، مطلوبیت محیط کار با ضریب مسیر 805/0 بر مشارکت و همکاری کارکنان و مشارکت و همکاری کارکنان با ضریب مسیر 774/0 بر انسجام و ثبات سازمانی تأثیرگذار است. از دیگر نتایج این پژوهش می توان به تأثیر انسجام و ثبات سازمانی با ضریب مسیر 797/0 بر تسهیل ارتباطات و تأثیر تسهیل ارتباطات بر کیفیت محصولات و خدمات با ضریب مسیر 804/0 اشاره کرد. نتیجه گیری: نتایج پژوهش نشان داد که بازگشت دانش بازنشستگان نقش تعیین کننده ای در رفع چالش ها در زنجیره تأمین پالایشگاه اصفهان دارد. همچنین بر اساس مدل مفهومی ارائه شده از رویکرد مدل سازی ساختاری تفسیری، حمایت دولت و دانش و تجربه بازنشستگان به عنوان عوامل کلیدی در بازگشت دانش بازنشستگان در زنجیره تأمین پالایشگاه اصفهان شناسایی شده اند.
۵۸.

Understanding the Cross Media Electronic Marketing Process(مقاله علمی وزارت علوم)

کلیدواژه‌ها: E-Marketing cross media insurance industry omnichannel

حوزه‌های تخصصی:
تعداد بازدید : ۴۱۲ تعداد دانلود : ۲۲۱
Purpose: The purpose of the research was to understand the cross media electronic marketing process. In fact, with the emergence of virtual organizations, social network media marketing has become a basic need for the possibility of movement and continued developmentMethod: this research conducted using Grounded theory analysis. Snowball or targeted sampling is utilized to gather the required data. The qualitative part of this study was conducted based on the viewpoints of 24 university professors, marketing activists, experts, elites, managers, and employees of insurance companies. Collected interviews were analyzed in MAXQDA software. To achieve this goal, the collected interviews are evaluated using different coding methods as the main process. The interviews were entered into the MAXQDA software. Coding in data theory methodology is a process of conceptual abstraction by assigning general concepts (codes) to individual occurrences in the data.Findings: Based on the analysis, 104 primary codes, 18 core categories have been identified in 6 categories of the foundation's data. With the emergence of electronic commerce, organizations are changing their business. The proposed model shows that the digital era has changed the expectations of customers from communication with brands. Before social networks, mass media communication channels such as television and radio to brand managers. It allowed them to communicate with consumersConclusion: In the present research, based on the participants' viewpoints, the categories of management factors challenge, financial potential, communication potential, customer characteristics and welfare and comfort, finally, marketing techniques have been identified and it has been related to another broader category called causal conditions. Information technology and targeted marketing were identified as background conditions. Environmental factors and psychological factors of the clients were identified as intervening conditions. Research strategies include business improvement, knowledge and education, and finally innovation and creativity. Outcomes include customer loyalty, sustainability in customer relationships with the product and social media, beneficial word-of-mouth and viral advertising, customer satisfaction, and purchase intent.
۵۹.

کاربست تکنیک خوشه بندی در واکاوی وضعیت مدیریت دانش در دانشگاه گلستان(مقاله علمی وزارت علوم)

کلیدواژه‌ها: خوشه بندی دانشگاه گلستان مدیریت دانش وضعیت موجود

حوزه‌های تخصصی:
تعداد بازدید : ۱۸۲ تعداد دانلود : ۱۹۰
هدف پژوهش حاضر کاربست تکنیک خوشه بندی به منظور واکاوی وضعیت مدیریت دانش در دانشگاه گلستان بوده است، لذا این پژوهش کاربردی بوده، از حیث هدف توصیفی-پیمایشی است. در این پژوهش محققان نگاهی کل نگر و سیستمی به مقوله مدیریت دانش داشته و پیاده سازی مدیریت دانش را منوط به برخورداری یا نیاز یک گروه خاص ندانسته اند. اعضای نمونه ی آماری، 281 نفر از مدیران، اعضای هیات علمی و یاوران علمی دانشگاه گلستان بودند که از طریق روش نمونه گیری طبقه ای انتخاب شدند و از طریق پرسشنامه مدیریت عمومی نیومن و کنراد که پایایی و روایی آن به ترتیب با استفاده از آلفای کرونباخ و تحلیل عاملی تاییدی تایید شده بود مورد سنجش قرار گرفتند. در گام اول بر حسب ابعاد چهارگانه چرخه مدیریت دانش وضع موجود مدیریت دانش در دانشگاه گلستان در سه سطح مدیران، اعضای هیات علمی و یاوران علمی با استفاده از تحلیل خوشه ای غیر سلسله مراتبی و نرم افزار رپیدماینر مورد تحلیل قرار گرفت و تعداد خوشه های بهینه بر حسب شاخص دیویس-بولدین به دست آمد، در گام دوم اعضای نمونه آماری قرار گرفته در هر خوشه بر اساس ویژگی های جمعیت شناختی مورد تجزیه و تحلیل قرار گرفتند. نتایج نشان داد در هر دو خوشه وضعیت چهار بعد مدیریت دانش در سطح اطمینان 95/0 در پایین تر از عدد 3 قرار داشته و تحلیل ویژگی های جمعیت شناختی خوشه ها با آزمون کای دو در سطح اطمینان 95/0 نشان داد که نتایج به دست آمده با قالب های ذهنی از پیش شکل گرفته تفاوت معناداری دارد. نتایج پژوهش بر پیاده سازی مدیریت دانش در دانشگاه گلستان تاکید دارد.
۶۰.

Developing an Innovative Technology Model for Hotel Reception Desks in Iran(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Innovation Technological innovation Hotel Service Reception Desk Hotel

حوزه‌های تخصصی:
تعداد بازدید : ۳۵۰ تعداد دانلود : ۲۴۷
In an era where customer expectations are rapidly evolving, enhancing the efficiency of hotel reception services in Iran is crucial for the growth of the hospitality sector. Recent research highlights the importance of digital transformation in improving service delivery and operational efficiency in the hospitality industry. These studies indicate that technological advancements can significantly streamline operational processes, improve customer satisfaction, and foster a competitive advantage in the hospitality industry. This research presents a technological innovation model aimed at modernizing reception desk services, addressing the pressing need for improvement in this area. Using an interpretive paradigm and an inductive approach, we conducted a qualitative study that incorporated a systematic review. Subsequently, the structures and components were extracted from the studies through qualitative coding. Our findings, derived from a review of 54 studies, revealed 295 open codes distilled into 15 constructs and four main components. This study highlights the significant impact of technological innovation on reception services, emphasizing the roles of ease of use and perceived usefulness in the technology adoption process. These insights provide essential guidelines for advancing reception desk technologies within the Iranian hotel industry, ultimately contributing to enhanced service quality.

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