基於HITS演算法之去中心化協作推薦平台｜國立中央大學博碩士論文系統

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研究生：	李奕昕 Yi-Hsin Lee
論文名稱：	基於HITS演算法之去中心化協作推薦平台 Decentralized Collaborative Recommendation Platform Based on HITS Algorithm
指導教授：	蔡孟峰
口試委員:
學位類別：	碩士 Master
系所名稱：	資訊電機學院 - 資訊工程學系 Department of Computer Science & Information Engineering
論文出版年：	2023
畢業學年度：	111
語文別：	中文
論文頁數：	45
中文關鍵詞：	區塊鏈、智能合約、去中心化、推薦演算法
外文關鍵詞：	Blockchain, Smart Contract, Decentralized, Recommendation algorithms
相關次數：	點閱：10 下載：0
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本研究為促進各專業領域的使用者共同協力創作，提出一個整合推薦系統與協作系統的平台，並選擇去中心化的區塊鏈作為整體架構，利用以太坊智能合約做為自動化管理、協助和監督的角色，以其可信任第三方的特性，免去傳統意義上的第三方仲介角色，可省去仲介手續費以及三方在溝通互動上的摩擦。取而代之，在推薦系統上，由於平台用戶紀錄有著較小的造假可能，配合推薦演算法的應用，讓使用者能在高可信度資料的優勢下找尋所需人才；在協作系統上，使用者可迅速著手於團隊專案的創作，同時也為協作的過程留下可追溯紀錄，以兼具效率且彼此信任的條件下，實現平台在推薦以及協作兩大服務項目。
此研究專注於協作推薦平台在去中心化基礎架構的實現，為其提供相關功能設計和技術的參考，相較於中心化協作平台上既有的功能框架，提出不一樣的觀點作嘗試，這將使研究成果富有意義，將兩種概念作整合，得以在後續的研究當中實現功能更完備且高效的協作推薦平台。

This study proposes a platform that integrates a recommendation system and a collaboration system to promote collaborative creation among users in various professional fields. The platform is built on decentralized blockchain architecture using Ethereum smart contracts as an automated management, assistance, and supervision role. With its trustworthy third-party characteristics, it eliminates the need for traditional third-party intermediaries, saving on intermediary fees and reducing friction in communication or interaction among the three parties. Instead, in the recommendation system, due to the lower possibility of falsification of user records on the platform, combined with the application of recommendation algorithms, users can find the talents they need under the advantage of high credibility data. In the collaboration system, users can quickly start creating team projects while leaving traceable records of the collaboration process, achieve both efficiency and trustworthiness in the platform’s two major service: recommendation and collaboration.
This study focuses on the implementation of a decentralized architecture for a collaborative recommendation platform, providing relevant functional design and technical references. Compared to the existing framework on centralized collaboration platforms, this research offers a different perspective for experimentation, making its results meaningful, integrating two concepts to achieve a more complete and efficient collaborative recommendation platform in future work.

摘要    i
Abstract    ii
誌謝    iii
目錄    iv
圖目錄    vi
表目錄    vii
一、 緒論    1
1-1. 研究背景與動機    1
1-2. 研究目的    2
1-2-1. 分散式技術在協作推薦平台中的應用場景和優勢    2
1-2-2. 具備完整功能平台的基礎設計探討    2
1-2-3. 研究去中心化平台的實現和技術挑戰    3
1-2-4. 評估去中心化推薦平台的可行性    3
二、 相關研究    4
2-1. 區塊鏈    4
2-2. 智能合約    4
2-3. 以太坊    5
2-4. 星際檔案系統    6
2-5. HITS演算法    7
2-6. 密碼貨幣錢包    8
2-7. 協作平台    8
三、 系統架構與演算法    9
3-1. 系統環境與平台架構    9
3-2. 系統開發流程    10
3-3. 推薦演算法比較    11
四、 研究方法    12
4-1. 定義平台參與角色    12
4-1-1. 平台方    12
4-1-2. 平台使用者    12
4-1-3. 專案負責人    12
4-1-4. 專案合夥人    12
4-2. 協作流程    13
4-2-1. 使用者註冊平台    13
4-2-2. 發起協作專案    14
4-2-3. 加入協作專案    15
4-2-4. 新增創作貢獻    15
4-2-5. 新增報帳撥款紀錄    16
4-3. 平台例外處理    17
4-3-1. 負責人剔除合夥人    17
4-3-2. 強制結束協作專案合約(合夥人投票超過2/3)    17
4-3-3. 撤銷平台合約    17
4-4. 智能合約設計    17
4-4-1. 平台合約    17
4-4-2. 協作專案合約    18
4-5. 平台提供功能    18
4-5-1. 使用者推薦功能    18
4-5-2. 評價功能    20
4-5-3. 協作紀錄模板功能    20
4-5-4. 安全功能    21
五、 系統實作    22
5-1. 平台測試環境建立    22
5-2. 智能合約開發與測試    23
5-3. 智能合約開發與部屬    23
5-4. 使用者介面與應用程式開發整合    23
六、 實驗結果與討論    24
6-1. 中心化協作平台比較    24
6-2. 推薦系統模擬    25
6-2-1. 使用者協作關係模擬資料    26
6-2-2. 推薦系統模擬結果    27
6-3. 智能合約Gas Fee    29
6-3-1. 降低「申請/新增 IPFS地址」之Gas Fee    30
6-4. 系統設備    30
6-4-1. 硬體    30
6-4-2. 軟體    31
七、 結論    32
八、 參考文獻    33
                                

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