UIU Digital Institutional RepositoryThe DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material.http://dspace.uiu.ac.bd:80802024-03-25T03:59:41Z2024-03-25T03:59:41ZAnomaly Detection in Blockchain Transactions using Machine Learning with Explainability AnalysisHasan, Mohammadhttp://dspace.uiu.ac.bd/handle/52243/29582024-03-24T21:00:09Z2024-03-23T00:00:00ZAnomaly Detection in Blockchain Transactions using Machine Learning with Explainability Analysis
Hasan, Mohammad
In the era of growing cryptocurrency adoption, Blockchain has emerged as a leading player in the digital payment landscape. However, this widespread popularity also brings forth an array of security challenges, including the need to safeguard against malicious activities. One of the paramount challenges in this regard is the detection of anomalous transactions within the
realm of Bitcoin data, a task that significantly influences the trust and security of digital payments. Yet, it’s a formidable challenge given the relatively low occurrence of anomalous Bitcoin transactions. Although several studies have been conducted in the field, a limitation persists: the lack of explanations for the model’s predictions. This study aims to address this limitation by combining eXplainable Artificial Intelligence (XAI) techniques and anomaly rules with tree-based ensemble classifiers. While deep learning
techniques have demonstrated their prowess in anomaly detection, there remains a scarcity of studies exploring their potential, particularly in the context of Bitcoin. This study also aims to fill that gap, focusing on our 1D Convolutional Neural Network (CNN) model. To understand how our model works and explain its decisions, we use the Shapley Additive exPlanation (SHAP) method, which measures each feature’s impact. We also deal with data imbalance by exploring various methods to balance anomalous
and non-anomalous Bitcoin transaction data. Additionally, we have introduced an under-sampling algorithm named XGBCLUS, designed to balance anomalous and non-anomalous transaction data. This algorithm is compared against other commonly used under-sampling and over-sampling techniques. Our experimental results demonstrate that: (i) XGBCLUS enhances TPR and ROC-AUC scores compared to state-of-the-art undersampling and over-sampling techniques, and (ii) our proposed ensemble classifiers outperform traditional single tree-based machine learning classifiers in terms of accuracy, TPR, and FPR scores, and (iii) our proposed 1D CNN model attains elevated accuracy with a concurrent reduction in the False Positive Rate (FPR).
2024-03-23T00:00:00ZProblems and Prospects of Real Estate Industry in BangladeshYahia, Md. Sadekuzzamanhttp://dspace.uiu.ac.bd/handle/52243/29572024-03-20T08:16:30Z2024-03-18T00:00:00ZProblems and Prospects of Real Estate Industry in Bangladesh
Yahia, Md. Sadekuzzaman
The real estate industry contributes to the economy with 58,000 crores, or 7% of the GDP. This report discusses several problems and prospects within the sector and provides a comprehensive understanding of the industry. At the beginning of the report, there is an introduction with the background and objective of the report, which includes the limitations and scope of the report.
The report identifies the key problems as financial difficulties, political changes, and a lack of a well-established mortgage market. Each problem is a separate prospect, which shows how the problems can be future opportunities for the industry as well as for the company. In the chapter, there is an in-depth discussion of analysis, trends, competitive analysis, and the industry overview. Financial difficulties prevent barriers to the industry from growing smoothly. Political changes make it a barrier to permanently planning for the company. By changing the political party, the company needs to change their plan, and it has an impact on the long-term plan.
An analysis of the industry and company shows the product mix and target market details. As per the data, the industry is in a mature stage that opens the market to more competition. SWOT analysis shows where the company has more strength and opportunity. By using the SWOT analysis, the company can minimize the threats because that shows.
Internship experience with the Silver Bird Real Estate industry is a journey of learning. The responsibilities during the internship included sales, digital marketing, marketing management, and marketing strategy. Using digital marketing tools helps collect real data in Google Analytics.
In the end, the report gives some recommendations the company can use to develop the marketing department. Overall, the report covers an in-depth analysis of the real estate sector and highlights problems and opportunities that exist within it. The report aims to provide valuable information to interested parties in the sector, including policymakers, investors, and real estate experts.
2024-03-18T00:00:00ZEvaluating the Implications of the Technology Acceptance Model in the Streaming Service IndustryChowdhury, Muhtasim Ahmedhttp://dspace.uiu.ac.bd/handle/52243/29562024-02-21T06:00:08Z2024-02-19T00:00:00ZEvaluating the Implications of the Technology Acceptance Model in the Streaming Service Industry
Chowdhury, Muhtasim Ahmed
This paper aims to evaluate the implications of TAM (Technology Acceptance Model) in the realm of streaming services. The paper investigates the various dimensions of user acceptance based on the theoretical framework of TAM. The paper also investigates the relationship among TAM variables in relation to demographic characteristics such as gender, age, education level, and user experience. The study was conducted in order to understand the acceptance level of streaming services based on a dominant theory of technology acceptance.
The streaming service is a market that is currently experiencing exponential growth, therefore understanding the user acceptance of such services allows the academicians to understand the reasons behind such a massive growth in the streaming content consumption worldwide. The study highlights that the streaming service is going under transformation and the need for novelty is continuously increasing to stay relevant in the market. A critical review of the existing literature shows that there is a paucity of academic literature regarding the implications of TAM in the domain of streaming services; hence the paper aims to bridge the aforesaid gap. This study will allow the participants in the industry to understand how the user interface of the applications or platforms used can influence the acceptance level of users of various streaming services.
The primary objective of the study was to evaluate a set of relationships among the TAM variables: Perceived Usefulness, Perceived Ease of Use, Subjective Norms & Trust, Attitude towards Use, Behavioral Intention to Use, and Actual Use. The study also aimed to examine whether there is any relationship between the demographic variables (Gender, Age, and Education) and the aforesaid TAM variables. The study was conducted on the basis of the responses from 230 respondents which were collected primarily on the basis of purposive sampling technique.
The findings of the study show that Subjective Norms have a positive impact on Perceived Usefulness and Perceived Ease of Use. Similarly, Trust has a positive effect on Perceived Usefulness and Perceived Ease of Use. The construct Perceived Ease of Use has a positive association with Perceived Usefulness. Attitude towards Use was found to be positively related with Behavioral Intention to Use, which was found to have a positive association with Actual Use. But the study didn’t find any statistically significant variations in the TAM variables across demographic characteristics of the respondents in term of Gender, Age, and Education. In general, the study found that the Technology Acceptance Model (TAM) can explain the acceptance of the streaming services by the Bangladeshi users,
The study adds theoretical and practical knowledge for adopting the Technology Acceptance Model (TAM) in understanding the acceptance of the streaming services by the Bangladeshi users. The study sheds light on how Bangladeshi streaming service providers can implement TAM framework for the purpose of ensuring acceptance of their services by the target users.
2024-02-19T00:00:00ZThe Comparative Analysis of the Retirement Plan between Bangladesh and United States of AmericaSiddik, Raima Shahrinhttp://dspace.uiu.ac.bd/handle/52243/29552024-02-19T12:18:00Z2024-02-10T00:00:00ZThe Comparative Analysis of the Retirement Plan between Bangladesh and United States of America
Siddik, Raima Shahrin
In this study, Comparison and comparison are used across a number of dimensions of the pension and retirement savings systems in Bangladesh and the United States. In addition, a synopsis has been provided of the compilation of knowledge and skill obtained over the term of the internship. This report's objective is to detail the strategy that Data-Path Ltd.'s plan followed and the activities that were taken to implement it. In the first half of this subject, we will discuss the retirement system in the country of America. Even in a lone being in charge, it is typical practice for government and non-government organizations in the United States, as well as sole proprietorships, to adhere to several distinguishing features of the United States retirement policy. This is true even in the case of a sole proprietorship. This savings plan has grown in popularity in recent years due to the following factors: government law, people's willingness to set aside money, people's right to know, contribution to the home country's economic growth, and contribution to the nation's economy. The federal government of the USA is fully conscious of the importance of safeguarding retired people's rights and providing them with financial stability in retirement, and it is dedicated to fulfilling these obligations. The Internal Revenue Service (IRS) and the Department of Labor (DOL) are two government agencies that determine the standards that firms must follow in order to administer retirement benefit schemes and provide benefits for retirement to its employees. Furthermore, the pension system allows the company's staff to save money on taxes associated with the organization's revenues. The Bangladesh Retirement Industry is also briefly described in this chapter. Multiple pension plans, both public and private, are available. Most private businesses lack any kind of structure or organization. Gratuity, benevolence fund, group insurance, and other retirement perks lack suitable rules. I looked for major distinctions between the retirement systems of the USA and Bangladesh. Everything from governmental regulations to individual rights to economic contributions to dependencies to benefit levels to others varies. In the last chapter, I presented various results that I had discovered. On the basis of these findings, I made a few suggestions, one of which was that the government should be concerned about and forthright in its efforts to protect the rights of retired individuals. It is feasible that a structured policy might be put into effect if the government decides to alter or reorganize the existing policy. Additionally, Bangladesh's provident retirement fund will get assistance from this research in order to be improved.
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