Mohammad Hajarian

Mohammad Hajarian
University Carlos III de Madrid | UC3M · Department of Computer Science and Engineering

Doctor of Philosophy in Software Engineering
MSCA Postdoctoral Researcher at UC3M, Founder, and Director of Gegli Social Network

About

33
Publications
14,745
Reads
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102
Citations
Introduction
Mohammad Hajarian is an MSCA Postdoctoral Researcher at UC3M and Assistant Professor at the Computer Science Department of Universidad Carlos III de Madrid in Spain. He is also the programmer, founder and CEO of Gegli social network.He also works as a reviewer in several prestigious journals and conferences. His research interests are Online Social Networks, Gamification, Human-computer Interaction, Interaction design, Recommendation Systems, Personalization, Data Science, and Online marketing.
Additional affiliations
January 2018 - December 2019
Islamic Azad University ShahreQods Branch
Position
  • Professor (Assistant)
January 2014 - present
Payame Noor University
Position
  • Lecturer
August 2012 - May 2014
Staffordshire University
Position
  • Master's Student
Education
August 2012 - May 2014
Staffordshire University
Field of study
  • Software engineering

Publications

Publications (33)
Article
Today, over two billion and 300 million people are using social networks. Advertisement in social networks is a multibillion dollar business and it is projected that by the year 2019 social networks will have over 70-billion-dollars income annually only from advertisement. On the other hand, showing relevant advertisements to social network users,...
Article
Full-text available
Reward-based gamification which increases user engagement in social networks is known as an extrinsic motivation to the users for a short term. Having said that, in every social network, there are different types of users with different interests and based on several researches, different users are interested in different game elements. In this pap...
Article
Full-text available
In this paper, with respect to reviewing and comparing existing social networks’ datasets, we introduce SNEFL dataset: the first social network dataset that includes the level of users’ likes (fuzzy like) data in addition to the likes between users. With users’ privacy in mind, the data has been collected from a social network. It includes several...
Chapter
Full-text available
This chapter presents a systematic review of over thirty (30) types of online marketing methods. It describes different methods like email marketing, social network marketing, in-game marketing and augmented reality marketing, among other approaches. The researchers discuss that the rationale for using these online marketing strategies is to increa...
Conference Paper
Full-text available
While implementing gamification in software applications might seem easy, there are many questions and doubts about it when it comes to execution. Engineers always ask where to start, what elements should be used, and how they should work. Despite the public's belief, gamification is not only points, levels, and leaderboards. It can implement in so...
Conference Paper
Full-text available
Most of the time, when users want to decide whether to buy a product from an e-commerce website or not, they ask questions about a product or read the other users’ comments to decide. Users’ comments about a product, when positive, bring exceptional opportunity for sellers because it will act as word of mouth (WOM) advertisement and can increase th...
Conference Paper
Full-text available
Incels, which stand for involuntary celibates, refer to online community members who identify themselves as individuals that women are not attracted to them. They are usually involved in misogyny and hateful conversations on social networks, leading to several terrorist attacks in recent years, also known as incel rebellion. In order to stop terror...
Conference Paper
Full-text available
Nowadays, gamification is implemented in different software applications to increase user engagement. On the other hand, the recommendation systems have been around for a long time to suggest related products to customers. Although numerous recommendation systems have proposed up to now, to the best of our knowledge, there is no study on the Word o...
Preprint
Full-text available
رشد شبکه های اجتماعی آنلاین (OSN) مانند فیس بوک، توییتر و یوتیوب،انقلابی در شیوه هایی که افراد با یکدیگر تعامل میکنند و کارهای تجاری آنها ایجاد کرده است. از سوی دیگر فعالیت های مخرب در شبکه های اجتماعی آنلاین، مانند حملات Sybil و استفاده نامناسب از هویت های جعلی، می تواند به شدت بر فعالیت های اجتماعی آنلاین که کاربران درگیر آن هستند تاثیر بگذارد. ب...
Conference Paper
6th Iranian congress on electrical and computer engineering with an applied perspective on new energies
Conference Paper
Full-text available
One of the challenges of users in social networks is that some pictures that other members upload to the social network is not as viewable as it should be and some of them require image enhancement specially for low vision users. In this paper, we have performed literature review on some of the image enhancement techniques and algorithm that has be...
Book
Full-text available
Advanced concepts in social networks
Book
Full-text available
Teach your self C#
Book
Full-text available
Teaching data structures and algorithms
Book
Full-text available
Developing mobile applications with android studio
Book
Full-text available
Training Visual basic
Article
Full-text available
چهره جزء مهمترین عواملِ مورد توجه در تعاملات انسانی است و آشکارسازی آن یکی از موضووعات موورد توجوه در سیسوتمهای اموروزی میباشد. استخراج چهره یک تکنولوژی است که اندازه و محل قرارگرفتن صورتهای انسان را در تصاویر دلخواه دیجیتال تشخیص میدهود. مسئله آشکارسازی در طول بیست سال اخیر مورد توجه محققان بسیاری قرار گرفته است و دارای کاربردهای مهمی در زمینههای...
Conference Paper
The knapsack problem is known as a NP-hard problem. There is a dynamic programming solution for this problem which is called the 0–1 knapsack. Firefly's innovative optimization algorithm is an algorithm, inspired by the behavior of fireflies flashing. This study represents a parallel solution for the 0–1 knapsack problem using firefly algorithm. Re...
Article
Full-text available
Interaction design of websites has been changed during last decade, yet principles of interaction design and frameworks seem not to be updated based on the new technology and findings. Moreover most of the web developers are just trying to copy other famous companies' works, because they do not have any idea what standards they have to follow, and...
Article
Interaction design of websites has been changed during last decade, yet principles of interaction design and frameworks seem not to be updated based on the new technology and findings. Moreover most of the web developers are just trying to copy other famous companies’ works, because they do not have any idea what standards they have to follow, and...
Conference Paper
Full-text available
Today, smart phones are becoming the main computing devices with variety of features. Hence mobile applications are becoming most popular type of software that can run on these devices. In this paper author has reviewed different types of software development methodology for developing high quality mobile applications and critically evaluates their...
Conference Paper
Full-text available
Era of internet of things (IOT) and big data of it has begun, in this era data mining can play very important role by transforming big data to useful information. In this paper author reviews some data mining techniques that can be implemented on big data generated by sensors of IOT to detect human movement types. Additionally, one role player sens...
Article
Full-text available
In this paper different usage of data mining in social networks has been reviewed and a hypothesis has been define that states by implementing data mining in social networks The CLICK THROUGH RATE (CTR) of their advertisement will improve, which can lead to improvement of the revenue of social network websites. Additionally finding of recent study...
Article
Full-text available
Social networks are one of the most used website in the internet, the users of social networks have their own reasons to use them. Knowing why people using social networks can help IT professionals to have better understanding of the market and make better decisions for developing social networks. In this paper author answers the question that why...
Article
Full-text available
In this paper author has reviewed and analyzed the findings of recent study that has been conducted on the social network members using online survey before and after implementing data mining to show relevant advertisement to the website members. The findings of this research suggests that after implementing data mining to show relevant advertiseme...
Article
Full-text available
The problem of developing mobile application is that there are lots of mobile operation systems available and each of them has a big share of this market. Hence if a programmer wants to develop its own application, he/she has to write it in different programminglanguage tohave an application available in different mobile operation systems and this...
Article
Full-text available
One of the most used techniques for website to make revenue is advertisement. The success rate of an advertisement is calculated based on the CTR factor. There are different techniques to improve the CTR of an advertisement in websites. Showing relevant advertisement to a visitor of a website can lead to improve the CTR of an advertisement and the...

Questions

Question (1)
Question
anybody knows any tutorial to learn how to use keel software ?

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Projects

Projects (12)
Project
In this project, innovative methods for sentiment analysis in social media will be proposed, and related research will be conducted.
Project
In this project, we will innovate new methods and research the role of gamification on e-commerce applications.