بهبود عملکرد و نتایج سیستم توصیه‌گر پالایش مشارکتی با استفاده از الگوریتم بهینه‌ساز گرگ خاکستری فازی غنی‌شده با الگوریتم بهینه‌سازی شیر

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری مدیریت فناوری اطلاعات، دانشکده مدیریت و اقتصاد، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، تهران،ایران.

2 استادیار، گروه مدیریت صنعتی، دانشکده مدیریت و اقتصاد، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، تهران،ایران.

3 استاد، گروه مدیریت صنعتی، دانشکده مدیریت و اقتصاد، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، تهران، ایران.

چکیده

امروزه سیستم توصیه‌گر، روش پالایش اطلاعات بین وب‌سایت‌ها و کاربران را به‌منظور شناسایی علاقه کاربر و ایجاد محصول پیشنهادی برای کاربران فعال تغییر داده است. سیستم‌های توصیه­‌گر را به‌طورکلی به سه گروه مبتنی بر محتوا، مبتنی بر دانش و مبتنی بر پالایش مشارکتی و در بعضی موارد ترکیبی تقسیم می‌کنند. ایده اصلی پالایش مشارکتی این است که اگر کاربران علایق مشابه یا یکسان در گذشته داشته باشند و آن را به­‌اشتراک بگذارند، در آینده نیز احتمالاً سلیقه‌­های مشابه خواهند داشت. این رویکرد نیاز به هیچ دانشی در مورد آیتم‌­ها ندارد. پالایش مشارکتی نیز دارای دو نوع اصلی مبتنی بر حافظه و مبتنی بر مدل است. روش مبتنی بر حافظه از اطلاعات امتیازدهی کاربران برای محاسبه شباهت بین کاربران یا آیتم‌‏ها استفاده می­‌کند. هدف اصلی این پژوهش نیز ارائه یک سیستم پیشنهاددهنده مبتنی بر حافظه برای بهبود نتایج الگوریتم پالایش مشارکتی است. در روش پیشنهادی برای یافتن شبیه‌­ترین کاربران به کاربر هدف از ترکیب دو الگوریتم گرگ خاکستری فازی و الگوریتم شیر استفاده شده است. نتایج اجرای روش پیشنهادی نشان می­‌دهد که پارامترهای Precision، Recall و F-measure نسبت به روش‌­های پایه افزایش یافته‌اند.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Improving Collaborative Filtering Recommender System Results and Performance using Combination of Fuzzy Grey Wolf Optimizer Algorithm and Lion Optimization Algorithm

نویسندگان [English]

  • Zahra Nakhaei Rad 1
  • Hessam Zandhessami 2
  • Abbas Tolouei Ashlaghi 3
1 Ph.D Candidate in Information Technology Management, Faculty of Management and Economics, Islamic Azad University, Science and Research Branch , Tehran, Iran.
2 Assistant Professor, Department of Industrial Management, Faculty of Management and Economics, Islamic Azad University, Science and Research Branch , Tehran, Iran.
3 Professor, Department of Industrial Management, Faculty of Management and Economics, Islamic Azad University, Science and Research Branch, Tehran, Iran.
چکیده [English]

Nowadays, recommender systems have reshaped the ways of information filtering between websites and the users in order to identify the users’ interests and generate product suggestions for the active users. Recommender systems are generally divided into three groups: Content-based, Knowledge-based, and collaborative-based, and in some cases hybrid. The main idea of collaborative filtering is that they predict a user’s interest in new items based on the recommendations of other people with similar interests. This Approach does not require having knowledge about items. Collaborative filtering has two main types: Memory-based and Model-based. Memory based Collaborative filtering makes use of user rating dataset to compute similarity index between set of users or set of items. The main purpose of this article is to offer a Memory-based Collaborative recommender system in order to optimize the results of Collaborative filtering algorithm. In the proposed method, the combination of fuzzy Grey Wolf Optimizer algorithm and Lion Optimization Algorithm is used to find the most similar users to the target user. The results of the proposed method confirmed a significant increment in Precision, Recall and F-measure in comparison with baseline methods.

کلیدواژه‌ها [English]

  • Recommender Systems
  • Collaborative Filtering
  • Metaheuristic Algorithms
  • Grey Wolf Optimizer Algorithm
  • Lion Optimization Algorithm

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