[Objective] This paper reveals the change of uers’ interests in the crowdfunding projects and analyzes the dynamic evolution of their online comments on these projects. [Methods] First, we retrieved 497,936 online comments on 6,537 technology-related projects from Kickstarter as corpus. Then, with the help of LDA model, we analyzed the topic evolution of these comments. Finally, we obtained the dynamic evolution model of the topics with the help of cosine similarity. [Results] In the initial stage of financing, the comments were mainly on basic project information. Then, the comments focused on return of investments and product information. In the final stage, these comments were on the shipping issues. For successful projects, the topics developed from project description to waiting time for products and deliveries. For the failed projects, the comments gradually evolved into the possible relaunch and prospect of a new project. [Limitations] We did not distinguish the project categories, which need to be analyzed in the future. This paper only examined the reward based crowdfunding model, which also needs to be expanded. [Conclusions] This article analyzes reviews of online crowdfunding projects and expands the application of LDA in the field of crowdfunding, which provides practical suggestion for platforms, project sponsors and investors.
Hi there,I love what you are working on! From the purpose to the design, there is so much potential. One of the stop motion shots I'm working on now (and for a while) involves a delay so a sheet of plastic can stabilize between frames. Wpuld it be it possible with RGKit Play to automate that delay? Or is there a way to synchronize but dissonate two motor actions?
喜欢你的工作 很大的潜力
项目创意
The shelves that attach to the yellow arms and the yellow arms are definitely of interest. Basically gear that can be modified to length and attach to your motors to help move products. My concern is having motors that I end up having to build new gear for all the time for different uses.
架子、黄色扶手、 齿轮、长度、马达
产品特征
融资末期
Would it be possible to buy camera slide as an add-on
可能购买
项目支持
Content creator kit is no longer available. I’m unable to edit my reward.
我的回报
项目回报
融资结束后
Hi creators, is there any nee with regard shipment and customs specially for UK? It is very important to know what we are expecting in terms of time and cost. Thanks
运输和海关
运输
I've been rewatching your videos on instagram and i really can't wait to get my RGKit Play !!! Good luck with the production guys.
真的等不及
等待产品
Table 8 融资成功的项目评论主题动态演化实例
问题
一致性
无线蓝牙 »»»» app&蓝牙
81.25%
运输 »»»» 运输
80.73%
项目创意 »»»» 庆祝成功
80.21%
融资希望 »»»» 未来重启、项目前景
79.69%、74.48%
产品应用 »»»» 产品设计
79.69%
Table 9 实际调查结果
Fig.12 产品特征主题演化路径
Fig.13 项目回报主题演化路径
Fig.14 分析流程与理论创新示意图
[1]
Büschken J, Allenby G M. Sentence-Based Text Analysis for Customer Reviews[J]. Marketing Science, 2016, 35(6): 953-975.
doi: 10.1287/mksc.2016.0993
(Jiang Cuiqing, Lv Xiaozhong, Duan Rui. Analyzing Topic Evolution of Online Product Forum Based on Topic Model[J]. Journal of Systems Engineering, 2019, 34(5): 598-609.)
[3]
Usman S M, Bukhari F A S, Usman M, et al. Does the Role of Media and Founder’s Past Success Mitigate the Problem of Information Asymmetry? Evidence from a UK Crowdfunding Platform[J]. Sustainability, 2019, 11(3): 692.
doi: 10.3390/su11030692
[4]
Brem A, Bilgram V, Marchuk A. How Crowdfunding Platforms Change the Nature of User Innovation: From Problem Solving to Entrepreneurship[J]. Technological Forecasting and Social Change, 2019, 144: 348-360.
doi: 10.1016/j.techfore.2017.11.020
[5]
Cumming D J, Johan S A, Zhang Y L. The Role of Due Diligence in Crowdfunding Platforms[J]. Journal of Banking & Finance, 2019, 108: 105661.
doi: 10.1016/j.jbankfin.2019.105661
[6]
Cox J, Nguyen T. Does the Crowd Mean Business? An Analysis of Rewards-Based Crowdfunding as a Source of Finance for Start-ups and Small Businesses[J]. Journal of Small Business and Enterprise Development, 2018, 25(1): 147-162.
doi: 10.1108/JSBED-05-2017-0165
(Wang Zhumei, Hu Yanrong, Liu Hongjiu. Emotional Analysis of Agricultural Product Online Reviews Based on LDA Thematic Model and Intuitionistic Fuzzy TOPSIS[J]. Journal of Data Acquisition and Processing, 2020, 35(5): 965-977.)
(Wang Wei, Chen Wei, Zhu Xiaoguo, et al. Success Rate of Crowdfunding and Persuasion of Language Style: An Empirical Study Based on Kickstarter[J]. Management World, 2016(5): 81-98.)
[11]
王伟, 何翎, Kevin Zhu, 等. 更新信号的阶段性融资效应:基于众筹市场的跨类别实证研究[J]. 中国管理科学, 2020, 28(11): 155-166.
[11]
(Wang Wei, He Ling, Kevin Zhu, et al. The Periodic Impact of Linguistic Cues to Update Signalson Successful Crowdfunding Campaigns Among Categories[J]. Chinese Journal of Management Science, 2020, 28(11): 155-166.)
[12]
Wang Y L, Kim K, Lee B, et al. Word Clustering Based on POS Feature for Efficient Twitter Sentiment Analysis[J]. Human-Centric Computing and Information Sciences, 2018, 8(1): 1-25.
doi: 10.1186/s13673-017-0124-3
(Shi Da, Wang Lele, Yi Bowen. Deep Data Mining for Online Reviews Usefulness: Hotel Reviews Data on TripAdvisor[J]. NanKai Business Review, 2020, 23(5): 64-75.)
[14]
Yang B, Liu Y, Liang Y, et al. Exploiting User Experience from Online Customer Reviews for Product Design[J]. International Journal of Information Management, 2019, 46: 173-186.
doi: 10.1016/j.ijinfomgt.2018.12.006
[15]
Hu N, Zhang T, Gao B J, et al. What do Hotel Customers Complain About? Text Analysis Using Structural Topic Model[J]. Tourism Management, 2019, 72: 417-426.
doi: 10.1016/j.tourman.2019.01.002
[16]
Shafqat W, Byun Y. Identifying Topics: Analysis of Crowdfunding Comments in Scam Campaigns [C]//Proceedings of International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing. 2018: 137-148.
(Zhang Baojian, Li Pengli, Chen Jin, et al. Thematic Analysis and Evolution Process of National Science and Technology Innovation Policy: Based on the Perspective of Text Mining[J]. Science of Science and Management of S.&T., 2019, 40(11): 15-31.)
(Wang Fudong, Wang Yuantong. Subject Analysis of Researches on the Belt and Road in China Based on LDA Model[J]. Information Research, 2019 (11): 129-134.)
(Zhu Xiaoxia, Song Jiaxin, Meng Jianfang. Analysis of Online Public Opinion Information Based on the Dynamic Theme-Emotion Evolution Model[J]. Information Science, 2019, 37(7): 72-78.)
(Duan Yaoqing, Shang Ting, Zhou Mi. Analysis on the Characteristics and Subjects of China’s Government Big Data Policy Diffusion[J]. Library and Information Service, 2020, 64(13): 133-139.)
[24]
Lehečka J, Pražák A. Online LDA-Based Language Model Adaptation [C]//Proceedings of International Conference on Text, Speech, and Dialogue. 2018: 334-341.
[25]
Yao F, Wang Y. Tracking Urban Geo-topics Based on Dynamic Topic Model[J]. Computers, Environment and Urban Systems, 2020, 79: 101419.
doi: 10.1016/j.compenvurbsys.2019.101419
[26]
Wang X R, McCallum A. Topics over Time: A Non-Markov Continuous-Time Model of Topical Trends [C]//Proceedings of the 12th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining. 2006: 424-433.
(Lin Lili, Ma Xiufeng. The Theme Discovery and Evolution Analysis of Domestic Library and Information Science Research Based on LDA[J]. Information Science, 2019, 37(12): 87-92.)
(Hu Jiming, Chen Guo. Mining and Evolution of Content Topics Based on Dynamic LDA[J]. Library and Information Service, 2014, 58(2): 138-142.)
[32]
Lv N, Luo J Y, Liu Y, et al. Analysis of Topic Evolution Based on Subtopic Similarity [C]//Proceedings of 2009 International Conference on Computational Intelligence and Natural Computing. 2009: 506-509.
(Qin Xiaohui, Le Xiaoqiu. Topic Evolution Research on a Certain Field Based on LDA Topic Association Filter[J]. New Technology of Library and Information Service, 2015(3): 18-25.)
[34]
Korfiatis N, Stamolampros P, Kourouthanassis P, et al. Measuring Service Quality from Unstructured Data: A Topic Modeling Application on Airline Passengers’ Online Reviews[J]. Expert Systems with Applications, 2019, 116: 472-486.
doi: 10.1016/j.eswa.2018.09.037
[35]
Rossetti M, Stella F, Zanker M. Analyzing User Reviews in Tourism with Topic Models[J]. Information Technology & Tourism, 2016, 16(1): 5-21.
[36]
Saura J R, Palos-Sanchez P, Grilo A. Detecting Indicators for Startup Business Success: Sentiment Analysis Using Text Data Mining[J]. Sustainability, 2019, 11(3): 917.
doi: 10.3390/su11030917
(Shu Wenchen, Zhou Enguo, Li Daifeng, et al. An Analysis of the Evolution of Informatics Research Themes Based on Co-authored Network Community Discovery[J]. Information Science, 2020, 38(1): 75-81.)
[38]
Yin F L, Lv J H, Zhang X J, et al. COVID-19 Information Propagation Dynamics in the Chinese Sina-Microblog[J]. Mathematical Biosciences Engineering, 2020, 17(3): 2676-2692.
doi: 10.3934/mbe.2020146
(Guan Peng, Wang Yuefen, Fu Zhu. Analyzing Topic Semantic Evolution with LDA: Case Study of Lithium Ion Batteries[J]. Data Analysis and Knowledge Discovery, 2019, 3(7): 61-72.)
[40]
Huang L, Ma J Y, Chen C L. Topic Detection from Microblogs Using T-LDA and Perplexity [C]//Proceedings of the 24th Asia-Pacific Software Engineering Conference Workshops. 2017: 71-77.
(Li Xiangdong, Zhang Jiao, Yuan Man. On Topic Evolution of a Scientific Journal Based on LDA Model[J]. Journal of Intelligence, 2014, 33(7): 115-121.)
[42]
Sung H Y, Yeh H Y, Lin J K, et al. A Visualization Tool of Patent Topic Evolution Using a Growing Cell Structure Neural Network[J]. Scientometrics, 2017, 111(3): 1267-1285.
doi: 10.1007/s11192-017-2361-7
(Chen Ting, Wang Haiming, Wang Xiaomei. Detecting Funding Topics Evolutions with Visualization[J]. Data Analysis and Knowledge Discovery, 2020, 4(2/3): 60-67.)
[44]
茅利锋. 基于主题模型的主题演化分析及预测[D]. 南京: 南京邮电大学, 2016.
[44]
(Mao Lifeng. Study of Text Evolution Analysis and Prediction Based on Topic Model[D]. Nanjing: Nanjing University of Posts and Telecommunications, 2016.)
[45]
Wang W, Chen W, Zhu K, et al. Emphasizing the Entrepreneur or the Idea? The Impact of Text Content Emphasis on Investment Decisions in Crowdfunding[J]. Decision Support Systems, 2020, 136: 113341.
doi: 10.1016/j.dss.2020.113341
(Lin Jie, Miao Runsheng. A Method for Constructing Topic Map in Professional Social Media: A Case Study of Automobile Forum[J]. Journal of the China Society for Scientific and Technical Information, 2020, 39(1): 68-80.)
[47]
Rogers E M. Diffusion of Innovations[M]. Simon and Schuster, 2010.
[48]
Buskens V. Spreading Information and Developing Trust in Social Networks to Accelerate Diffusion of Innovations[J]. Trends in Food Science & Technology, 2020, 106: 485-488.
[49]
Josefy M, Dean T J, Albert L S, et al. The Role of Community in Crowdfunding Success: Evidence on Cultural Attributes in Funding Campaigns to “Save the Local Theater”[J]. Entrepreneurship Theory and Practice, 2017, 41(2): 161-182.
doi: 10.1111/etap.12263