Peer Review History
| Original SubmissionOctober 1, 2025 |
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Dear Dr. Hu, Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process. Please submit your revised manuscript by Feb 23 2026 11:59PM. If you will need more time than this to complete your revisions, please reply to this message or contact the journal office at plosone@plos.org . When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.
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The PLOS ONE style templates can be found at https://journals.plos.org/plosone/s/file?id=wjVg/PLOSOne_formatting_sample_main_body.pdf and 2. Please note that PLOS One has specific guidelines on code sharing for submissions in which author-generated code underpins the findings in the manuscript. In these cases, we expect all author-generated code to be made available without restrictions upon publication of the work. Please review our guidelines at https://journals.plos.org/plosone/s/materials-and-software-sharing#loc-sharing-code and ensure that your code is shared in a way that follows best practice and facilitates reproducibility and reuse. 3. Thank you for stating the following financial disclosure: This work was supported by the Natural Science Foundation of Sichuan Province, China(Grant No.24NSFSC3739)�Ministry of Education Humanities and Social Sciences, China(Grant No.24YJC630301) Please state what role the funders took in the study. If the funders had no role, please state: "The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript." If this statement is not correct you must amend it as needed. Please include this amended Role of Funder statement in your cover letter; we will change the online submission form on your behalf. 4. In this instance it seems there may be acceptable restrictions in place that prevent the public sharing of your minimal data. However, in line with our goal of ensuring long-term data availability to all interested researchers, PLOS’ Data Policy states that authors cannot be the sole named individuals responsible for ensuring data access (http://journals.plos.org/plosone/s/data-availability#loc-acceptable-data-sharing-methods). Data requests to a non-author institutional point of contact, such as a data access or ethics committee, helps guarantee long term stability and availability of data. Providing interested researchers with a durable point of contact ensures data will be accessible even if an author changes email addresses, institutions, or becomes unavailable to answer requests. Before we proceed with your manuscript, please also provide non-author contact information (phone/email/hyperlink) for a data access committee, ethics committee, or other institutional body to which data requests may be sent. If no institutional body is available to respond to requests for your minimal data, please consider if there any institutional representatives who did not collaborate in the study, and are not listed as authors on the manuscript, who would be able to hold the data and respond to external requests for data access? If so, please provide their contact information (i.e., email address). Please also provide details on how you will ensure persistent or long-term data storage and availability. 5. Please update your submission to use the PLOS LaTeX template. The template and more information on our requirements for LaTeX submissions can be found at http://journals.plos.org/plosone/s/latex . 6. Please amend the manuscript submission data (via Edit Submission) to include authors Wenjie Zhang and Zhiyuan Nong. 7. Please amend your authorship list in your manuscript file to include authors Wenjie Wenjie Zhang and Zhi Nong. 8. If the reviewer comments include a recommendation to cite specific previously published works, please review and evaluate these publications to determine whether they are relevant and should be cited. There is no requirement to cite these works unless the editor has indicated otherwise. 9. Please review your reference list to ensure that it is complete and correct. If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references. Any changes to the reference list should be mentioned in the rebuttal letter that accompanies your revised manuscript. If you need to cite a retracted article, indicate the article’s retracted status in the References list and also include a citation and full reference for the retraction notice. Additional Editor Comments: I will require the authors to add a clear definition (and brief description of the identification/labeling process) distinguishing fraudulent vs non-fraudulent users, and to ensure terminology is used consistently throughout the manuscript. [Note: HTML markup is below. Please do not edit.] Reviewers' comments: Reviewer's Responses to Questions Comments to the Author 1. Is the manuscript technically sound, and do the data support the conclusions? Reviewer #1: Yes Reviewer #2: Partly Reviewer #3: Yes ********** 2. Has the statistical analysis been performed appropriately and rigorously? -->?> Reviewer #1: Yes Reviewer #2: N/A Reviewer #3: Yes ********** 3. Have the authors made all data underlying the findings in their manuscript fully available??> The PLOS Data policy Reviewer #1: Yes Reviewer #2: Yes Reviewer #3: No ********** 4. Is the manuscript presented in an intelligible fashion and written in standard English??> Reviewer #1: Yes Reviewer #2: No Reviewer #3: Yes ********** Reviewer #1: Excellent clarity throughout the work. Strong organization and flow. Ideas are presented with confidence. Very effective use of supporting details. The writing remains focused and purposeful. Insightful analysis that adds real value. The argumentation is compelling and smooth. Demonstrates impressive subject knowledge. Thoughtful structure enhances readability. Reviewer #2: The study addresses an important topic and applies social network analysis and machine-learning methods to fraud prediction on crowdsourcing platforms. While the dataset is strong and the research direction is valuable, the manuscript requires substantial revision before it can be considered for publication. The statistical methods used are appropriate in principle, but the analysis lacks rigor—effect sizes, diagnostics, sensitivity tests, and full model evaluation metrics are missing. Several conclusions are overstated or speculative relative to the data. The manuscript also requires major improvements in clarity, structure, and English writing; key sections are repetitive, overly long, and contain grammatical and phrasing issues that hinder understanding. Methodological explanations (e.g., window size, edge weighting, fraud labeling) must be clearer and better justified. Finally, the discussion should more carefully interpret findings and avoid unsupported psychological explanations. A major revision is needed to address these issues. Reviewer #3: Thank you for the opportunity to review this manuscript. The topic is timely and relevant, and the authors address an important issue in crowdsourcing platforms by examining how social network features can help identify fraudulent seekers. Overall, the manuscript is clear, well organized, and generally easy to follow. Technical Assessment: The study appears to be technically sound. The dataset is substantial, the construction of the dynamic social network is appropriate for the setting, and the authors use standard SNA metrics and reasonable statistical methods. The results are clearly presented and, in general, support the conclusions drawn. I also appreciate the additional fraud-prediction experiment, which adds practical value to the work. There are, however, a few areas where the methodology would benefit from clarification: Some seekers appear multiple times in the data, but the statistical tests treat each project as independent. This may affect the significance levels, so it would be helpful for the authors to acknowledge this limitation or discuss its impact. The process used by the platform to identify fraudulent seekers is only briefly described. Since these labels are central to the analysis, a clearer explanation of how fraud determinations were made would strengthen the credibility of the findings. The network construction choices (such as the 3-month window and the weighting of edge types) are reasonable, but somewhat arbitrary. A short justification or a note on robustness would improve transparency. The structural equivalence analysis relies on extremely large sets of pairwise distances, which are not fully independent. The authors should interpret these results carefully and emphasize effect sizes rather than significance alone. Despite these points, the overall methodology is coherent, and the main findings—that fraudulent seekers tend to occupy less-connected positions in the network and that SNA features improve prediction accuracy—are supported by the data. Statistical Analysis: Most statistical procedures are appropriate for the data structure. The use of non-parametric tests for heavily unbalanced samples and the application of cross-validation for the prediction models are sound choices. One point to consider is that down sampling the non-fraud group may reduce the representativeness of the dataset. The authors may want to acknowledge this limitation or consider alternative imbalance-handling strategies. Data Availability: According to the manuscript, the dataset cannot be publicly shared due to confidentiality restrictions and is only available upon request. As stated, this does not meet PLOS ONE’s data availability requirement and will need to be revised in accordance with the journal’s policy. Writing and Presentation: The manuscript is generally written in clear and standard English. The structure flows well, and the main ideas are presented logically. Only minor stylistic or grammatical edits are needed and can be addressed during revision. Contribution: This study offers useful insights into fraud detection on crowdsourcing platforms. The finding that fraudulent seekers tend to have lower centrality and zero clustering is particularly interesting and contrasts with patterns observed in other online fraud contexts. The integration of SNA measures into predictive models is a valuable addition that has practical implications for platform management. Suggestions for Improvement: Provide more detail about how fraud cases were identified and validated. Briefly justify the key assumptions behind the network construction. Discuss the issue of non-independent observations when seekers appear in multiple projects. Clarify the meaning of the small numerical values for centrality metrics to help readers interpret them. Revise the Data Availability Statement to comply with PLOS policies. Overall, I found the manuscript promising and well aligned with PLOS ONE’s standards. Addressing the points above will strengthen the clarity and methodological transparency of the work. ********** what does this mean? ). If published, this will include your full peer review and any attached files. If you choose “no”, your identity will remain anonymous but your review may still be made public. Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy Reviewer #1: Yes: PAVAN Reviewer #2: Yes: Madhu Babu Amarappalli Reviewer #3: No ********** [NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.] To ensure your figures meet our technical requirements, please review our figure guidelines: https://journals.plos.org/plosone/s/figures You may also use PLOS’s free figure tool, NAAS, to help you prepare publication quality figures: https://journals.plos.org/plosone/s/figures#loc-tools-for-figure-preparation. NAAS will assess whether your figures meet our technical requirements by comparing each figure against our figure specifications. |
| Revision 1 |
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<p>A Social Network Analysis of Fraud Prediction on Crowdsourcing Platforms PONE-D-25-53356R1 Dear Dr. Hu, We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements. Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication. An invoice will be generated when your article is formally accepted. Please note, if your institution has a publishing partnership with PLOS and your article meets the relevant criteria, all or part of your publication costs will be covered. Please make sure your user information is up-to-date by logging into Editorial Manager at Editorial Manager® and clicking the ‘Update My Information' link at the top of the page. For questions related to billing, please contact billing support . If your institution or institutions have a press office, please notify them about your upcoming paper to help maximize its impact. If they’ll be preparing press materials, please inform our press team as soon as possible -- no later than 48 hours after receiving the formal acceptance. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact onepress@plos.org. Kind regards, Naga Ramesh Palakurti, MCA Guest Editor PLOS One Additional Editor Comments (optional): We are pleased to inform you that your manuscript has been accepted for publication. The reviewers found the study to be well designed and clearly presented, and you have adequately addressed all reviewer comments. Thank you for submitting your work to the journal. Reviewers' comments: Reviewer's Responses to Questions Comments to the Author Reviewer #1: All comments have been addressed Reviewer #2: All comments have been addressed Reviewer #3: All comments have been addressed Reviewer #4: All comments have been addressed ********** 2. Is the manuscript technically sound, and do the data support the conclusions??> Reviewer #1: Yes Reviewer #2: Yes Reviewer #3: Yes Reviewer #4: Yes ********** 3. Has the statistical analysis been performed appropriately and rigorously? -->?> Reviewer #1: Yes Reviewer #2: Yes Reviewer #3: Yes Reviewer #4: Yes ********** 4. Have the authors made all data underlying the findings in their manuscript fully available??> The PLOS Data policy Reviewer #1: Yes Reviewer #2: Yes Reviewer #3: Yes Reviewer #4: Yes ********** 5. Is the manuscript presented in an intelligible fashion and written in standard English??> Reviewer #1: Yes Reviewer #2: Yes Reviewer #3: Yes Reviewer #4: Yes ********** Reviewer #1: All comments are addressed and doc good to publish and it is well structured document , all facts are correct and verified. Reviewer #2: As the reviewer who provided the detailed comments to the author, I confirm that all feedback has now been fully addressed and incorporated into this final review submission to the publication editor. The assessments reflect my evaluation of the chapter’s quality, relevance, and completeness. The comments were designed to support the authors in strengthening their work and ensuring alignment with the book’s objectives. I consider the chapter ready for editorial decision-making. Please treat this confirmation as part of the final review . Reviewer #3: This paper studies fraud prediction on crowdsourcing platforms using social network analysis. The topic is relevant and important, as fraud and intellectual property risks are real challenges in crowdsourcing environments. Using a large real-world dataset and social network metrics is a clear strength of the study. That said, the manuscript would benefit from several improvements before it can be considered for publication. First, the contribution of the paper needs to be stated more clearly. While social network analysis has been used in prior fraud and online platform studies, it is not always clear what is new in this work compared to existing research. The authors should better explain how their approach advances prior studies and why the selected network features provide new insights. Second, more detail is needed about the data and fraud labeling process. It is not fully clear how fraudulent seekers are identified, how reliable these labels are, and whether the dataset is imbalanced. Providing clearer explanations of data collection, preprocessing, and labeling would improve transparency and help readers trust the results. Third, the methodology and model evaluation require further clarification. The paper should explain why specific network metrics were chosen, how the model was trained and tested, and how its performance compares with simpler or commonly used baseline methods. This would make it easier to assess the robustness and usefulness of the proposed model. Fourth, the discussion of results could be strengthened. While statistical differences are reported, the practical meaning of these findings is not always clear. The authors should explain how the results can be used by crowdsourcing platform managers or system designers in real-world settings. Finally, the paper would benefit from a clearer discussion of limitations. Since the data come from a single platform in China, the authors should discuss how platform-specific or cultural factors might affect the results and whether the findings can be generalized to other crowdsourcing platforms. Overall, this study addresses an important problem and has potential. With clearer positioning of the contribution, improved methodological transparency, and a stronger discussion of results and limitations, the manuscript could be significantly strengthened. Reviewer #4: The manuscript presents a technically sound study, with methods described clearly and conclusions aligned with the data. Experimental design appears well controlled, with appropriate replication and sample sizes for the questions posed. The statistical analyses are suitable and applied rigorously, with results reported in a way that supports the main claims. Data underlying the findings are made available in line with the PLOS Data policy, enabling verification, and summary statistics and key data points are accessible. The paper is generally well written in standard English and is easy to follow, with only minor edits suggested for clarity and consistency throughout. ********** what does this mean? ). If published, this will include your full peer review and any attached files. If you choose “no”, your identity will remain anonymous but your review may still be made public. Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy Reviewer #1: Yes: PAVAN Reviewer #2: Yes: Madhu Babu Amarappalli Reviewer #3: Yes: Sivasankara Rao Gajula Reviewer #4: Yes: Sreedhar Yalamati ********** |
| Formally Accepted |
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PONE-D-25-53356R1 PLOS One Dear Dr. Hu, I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS One. Congratulations! Your manuscript is now being handed over to our production team. At this stage, our production department will prepare your paper for publication. This includes ensuring the following: * All references, tables, and figures are properly cited * All relevant supporting information is included in the manuscript submission, * There are no issues that prevent the paper from being properly typeset You will receive further instructions from the production team, including instructions on how to review your proof when it is ready. Please keep in mind that we are working through a large volume of accepted articles, so please give us a few days to review your paper and let you know the next and final steps. Lastly, if your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact onepress@plos.org. You will receive an invoice from PLOS for your publication fee after your manuscript has reached the completed accept phase. If you receive an email requesting payment before acceptance or for any other service, this may be a phishing scheme. Learn how to identify phishing emails and protect your accounts at https://explore.plos.org/phishing. If we can help with anything else, please email us at customercare@plos.org. Thank you for submitting your work to PLOS ONE and supporting open access. Kind regards, PLOS ONE Editorial Office Staff on behalf of Mr. Naga Ramesh Palakurti Guest Editor PLOS One |
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