نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناسی ارشد مدیریت فناوری اطلاعات، دانشکده علوم اجتماعی و اقتصاد، دانشگاه الزهرا، تهران، ایران

2 دانشیار، گروه مدیریت، دانشکده علوم اجتماعی و اقتصاد، دانشگاه الزهرا، تهران، ایران

3 استادیار، گروه مدیریت فناوری اطلاعات، دانشکده فناوری اطلاعات، مؤسسه آموزش عالی مهر البرز، تهران، ایران

چکیده

با توجه به محبوبیت جهانی حوزه رمزارزها به ویژه بیت‌کوین، انتظار می‌رود دیر یا زود دولت‌ها، بانک‌ها و سایر صنایع به استفاده از رمزارزها در معاملات روزمره خود روی‌آورند. بنابراین همانند هر حوزه مالی دیگر، نیاز به شناسایی چالش‌های موجود در این حوزه جهت ایجاد فضای سرمایه‌گذاری امن احساس می‌شود. از طرفی با گسترش شبکه‌های اجتماعی، داده‌های ساختارنیافته در حال افزایش هستند که می‌توان از این پدیده جهت ایجاد ارزش افزوده در حوزه‌های گوناگون همچون تحلیل احساسات بهره‌مند شد. از این رو پژوهش حاضر با هدف بررسی تأثیر ریسک درک‌شده توسط کاربران شبکه‌های اجتماعی بر روی قیمت بیت‌کوین انجام گردید. براساس یافته‌های پژوهش، ریسک‌های شناسایی‌شده در حوزه بیت‌کوین، شامل ریسک اجتماعی، اقتصادی، امنیتی، فناوری و حقوقی می‌باشند. برای استخراج ریسک‌های بیت‌کوین، از گفتگوهای سایت بیت‌کوین‌تاک استفاده گردید. پس از جمع­آوری داده‌ها توسط خزشگر وب، به کمک الگوریتم تخصیص پنهان، گفتگوها در خوشه‌های موضوعی خوشه‌بندی شدند. تحلیل احساسات کاربران نیز با روش مبتنی‌بر واژگان و بکارگیری واژه‌نامه AFINN انجام گردید. برای سنجش اثرگذاری احساسات کاربران بر قیمت بیت‌کوین نیز از مدل شبکه عصبی غیرخطی با داده‌های برون­زا بهره گرفته شد. نتایج به­دست آمده نشان از وجود 0.99 همبستگی و میانگین مربعات خطا 0.001 دارد که به معنای وجود همبستگی میان قیمت واقعی و قیمت پیش‌بینی‌شده بیت‌کوین می‌باشد. یافته‌های این پژوهش می‌تواند توجه فعالان در حوزه بیت‌کوین را جلب نماید تا برنامه‌ریزی مناسبی جهت سرمایه‌گذاری و کاهش ریسک سرمایه‌گذاری داشته باشند.

کلیدواژه‌ها

عنوان مقاله [English]

paper title

نویسندگان [English]

  • Parisa Zolfaghar 1
  • ameneh khadivar 2
  • fatemeh abbasi 3

1 Master of Information Technology Management, Faculty of Social Sciences and Economics, Alzahra University, Tehran, Iran

2 Associate Professor, Department of Management, Faculty of Social Sciences and Economics, Alzahra University, Tehran, Iran

3 Assistant Professor, Department of Information Technology Management, Faculty of Information Technology, Mehr Alborz Institute of Higher Education, Tehran, Iran

چکیده [English]

Abstract
   Due to the global attention to cryptocurrencies especially bitcoin, governments, banks, and other industries are expected to use cryptocurrencies in their daily transactions. Therefore, as any other financial field, there is a need to identify the challenges in this field to safe investment. On the other hand, by the expansion of social networks, unstructured data is increasing, which can be used to create added value in various areas such as sentiment analysis. Therefore, this study was conducted to investigate the impact of perceived risk by social network users on the price of Bitcoin. According to the research findings, the identified risks in the field of bitcoin include social, economic, security, technological and legal risks., The conversations on the Bitcoin Talk Site were used to extract the bitcoin risks. After collecting these conversations by the web crawler, the conversations were clustered into thematic clusters using the Latent Dirichlet Allocation algorithm, which is one of the most popular methods in Topic Modeling. were analyzed using vocabulary-based method and AFINN dictionary. NARX Neural Network was used to measure the effect of Userschr('39') Sentiment on the price of Bitcoin. The results show a correlation of 0.99 and a mean square error of 0.001, which means that there is a correlation between the actual price and the predicted price of Bitcoin. The findings of this study can attract the attention of financial actors and businessmen in the field of bitcoin to plan a safe investment and reduce risk.

کلیدواژه‌ها [English]

  • Bitcoin
  • Bitcoin risk
  • Sentiment Analysis
  • Topic Modeling
  • NARX neural network
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