---

Updates

New I am joining as a Lecturer of Cyber Security at Deakin University, GIFT City, India from July 2024. Please reach out if you are interested in joining our research group at any level – Postdoc, PhD or undergraduate interns – to work at the intersection of cybercrime, security, and social networks.
New Our paper ModZoo: A Large-Scale Study of Modded Android Apps and their Markets is now live on Arxiv.
New I am a recipient of the Wiseman Prize, Department of Computer Science and Technology, University of Cambridge

---

About Me

I am an incoming Lecturer of Cyber Security at Deakin University, GIFT City, India from July 2024. I am currently a Postdoctoral Research Associate in the Department of Computer Science and Technology, University of Cambridge working with the Cambridge Cybercrime Centre. I am advised by Prof. Alice Hutchings and Prof. Ross Anderson. I obtained my Ph.D. (2021) in Computer Science from Indraprastha Institute of Information Technology, Delhi advised by Prof. Tanmoy Chakraborty. I hold a M.Tech (2017) in Computer Science and Engineering from National Institute of Technology, Durgapur working with the Mobile Computing and Networking Research Group led by Prof. Subrata Nandi and Prof. Sujoy Saha and a B.Tech (2013) in Computer Science and Engineering from the Institute of Science and Technology, Gauhati University. My current research lies in data-driven cybersecurity, social network analysis and web mining.

CV» M.Tech Thesis» B.Tech Thesis»

---

Publications

h-index: 8   Citations: 239  

• DRW'23 "Analyzing online media platforms for hacktivist group organization and proliferation", Quincy Taylor, Derek Hansen, Hridoy Sankar Dutta and Justin Giboney. The 15th Dewald Roode Workshop on Information Systems Security Research (DRW 2023), 22-23 June 2023, Glasgow, Scotland.
• MobiUK "Analysis of Modded Android Apps and Marketplaces", Luis Adán Saavedra del Toro, Alastair Beresford, Hridoy Sankar Dutta and Alice Hutchings. Fourth UK Mobile, Wearable and Ubiquitous Systems Research Symposium (MobiUK), 4th-5th July 2022, UCL.
• ACM TDS "Blackmarket-driven Collusion on Online Media: A Survey", Hridoy Sankar Dutta and Tanmoy Chakraborty. ACM/IMS Transactions on Data Science (TDS), 2022.
• ICWSM'22 "Weakening the Inner Strength: Spotting Core Collusive Users in YouTube Blackmarket Network", Hridoy Sankar Dutta, Nirav Diwan and Tanmoy Chakraborty. International AAAI Conference on Web and Social Media (ICWSM 2022), 2022.
• ACM TIST "Detecting and Analyzing Collusive Entities on YouTube.", Hridoy Sankar Dutta, Mayank Jobanputra, Himani Negi, Tanmoy Chakraborty. ACM Transactions on Intelligent Systems and Technology (TIST), 2021. (Impact Factor: 3.971)
• HyperText'21 "DECIFE: Detecting Collusive Users Involved in Blackmarket Following Services on Twitter", Hridoy Sankar Dutta, Kartik Aggarwal and Tanmoy Chakraborty. 32nd ACM Conference on Hypertext and Social Media (HyperText 2021), Trinity College Dublin, Ireland, 2021.
• ICWSM'21 "ABOME: A Multi-platform Data Repository of Artificially Boosted Online Media Entities", Hridoy Sankar Dutta, Udit Arora and Tanmoy Chakraborty. International AAAI Conference on Web and Social Media (ICWSM 2021), 2021.
• AAAI'21 "Revealing the Blackmarket Retweet Game: A Hybrid Approach", Shreyash Arya and Hridoy Sankar Dutta. CONSTRAINT Workshop @ AAAI, 2021.
• BDA'20 "Adversarial Collusion on the Web: State-of-the-Art and Future Directions.", Hridoy Sankar Dutta and Tanmoy Chakraborty. The Eighth International Conference on Big Data Analytics (BDA 2020), 2020.
• ACM TIST "Analyzing and Detecting Collusive Users Involved in Blackmarket Retweeting Activities.", Udit Arora*, Hridoy Sankar Dutta*, Aditya Chetan, Brihi Joshi and Tanmoy Chakraborty. ACM Transactions on Intelligent Systems and Technology (TIST), 2019. (Impact Factor: 3.971)
• IEEE TIFS "HawkesEye: Detecting Fake Retweeters using Hawkes Process and Topic Modeling.", Hridoy Sankar Dutta, Vishal Raj Dutta, Aditya Adhikary and Tanmoy Chakraborty. IEEE Transactions on Information Forensics and Security (TIFS), 2019. (Impact Factor: 6.211)
• IEEE TIFS "Blackmarket-driven Collusion among Retweeters – Analysis, Detection and Characterization.", Hridoy Sankar Dutta and Tanmoy Chakraborty. IEEE Transactions on Information Forensics and Security (TIFS), 2019. (Impact Factor: 6.211)
• Elsevier JNCA "CRIMP: Here Crisis Mapping Goes Offline", Partha Sarathi Paul, Bishakh Chandra Ghosh, Hridoy Sankar Dutta, Kingshuk De, Arka Prava Basu, Prithviraj Pramanik, Sujoy Saha, Sandip Chakraborty, Niloy Ganguly, Subrata Nandi. Elsevier Journal of Network and Computer Applications (JNCA), 2019. (Impact Factor: 5.273)
• WSDM'19 "CoReRank: Ranking to Detect Users Involved in Blackmarket-based Collusive Retweeting Activities", Aditya Chetan*, Brihi Joshi*, Hridoy Sankar Dutta*, Tanmoy Chakraborty, 12th ACM International Conference on Web Search and Data Mining (WSDM 2019), Melbourne, Australia, Feb 11-15, 2019. (Acceptance rate: 16%)
• ASONAM'18 "Retweet Us, We Will Retweet You: Spotting Collusive Retweeters Involved in Blackmarket Services", Hridoy Sankar Dutta, Aditya Chetan*, Brihi Joshi*, Tanmoy Chakraborty, IEEE/ACM International Conference on Social Networks Analysis and Mining (ASONAM 2018), Barcelona, Spain, August 28- August 31, 2018. (Acceptance rate: 15%)
• ACM SIGSPATIAL'16 "Offline Crisis Mapping by Opportunistic Dissemination of Crisis Data after Large-scale Disasters", Partha Sarathi Paul, Hridoy Sankar Dutta, Bishakh Chandra Ghosh, Krishnandu Hazra, Sandip Chakraborty, Sujoy Saha, Subrata Nandi, 2nd ACM SIGSPATIAL Workshop on Emergency Management using GIS (ACM SIGSPATIAL Workshop - EM-GIS 2016), San Francisco Bay Area, CA, USA, October 31- November 03, 2016.
• ACM SAC'14 "Hierarchical Topology Adaptation for Distributed Convergecast Applications", Sandip Chakraborty, Suchetana Chakraborty, Sushanta Karmakar and Hridoy Sankar Dutta, 29th ACM Symposium On Applied Computing, Dependable and Adaptive Distributed Systems Track (ACM SAC - DADS), Gyeongju, Korea, March 24 - 28, 2014.

---

Patent

• Indian Patent Sujoy Saha, Prithviraj Pramanik, Partha Sarathi Paul, Subrata Nandi, Kingshuk De, Bishak Chandra Ghosh, Hridoy Sankar Dutta, Tamal Mondal, Krishnendu Hazra, Indrajit Bhattacharya, Sandip Chakraborty, AN END-TO-END SYSTEM FOR OFFLINE LOCALIZED CRISIS MAPPING AND METHOD OF OPERATION THEREOF, Indian Patent, Application No: 201931050685, Filed on 09 December, 2019. (Awaiting Request for Examination)

---

Professional services

• Poster Co-Chair IEEE Building a Secure Empowered Cyberspace (BuildSEC 2024)
• Reviewer ACM Conference on Hypertext and Social Media (HyperText 2024)
• Reviewer Workshop on Mobility in the Evolving Internet Architecture (MobiCom 2024)
• Reviewer International Conference On Distributed Computing And Networking
• Reviewer ACM International Conference on Web Search and Data Mining (WSDM 2024)
• Reviewer Dewald Roode Workshop on Information Systems Security Research (DRW 2023)
• Reviewer Special Interest Group on Information Retrieval (Resource Track) (SIGIR 2023)
• Reviewer ACM Transactions on Asian and Low-Resource Language Information Processing (ACM TALLIP)
• Reviewer International Joint Conference on Artificial Intelligence (IJCAI 2023)
• Reviewer ACM Web Conference (WWW 2023)
• Reviewer SIAM International Conference on Data Mining (SIAM 2023)
• Reviewer Springer Machine Learning Journal
• Organizing committee Cambridge Cybercrime Conference 2022
• Reviewer AAAI-23: Thirty-Seventh AAAI Conference on Artificial Intelligence (AAAI-23)
• Reviewer WSDM 2023: 16th ACM International Conference on Web Search and Data Mining (WSDM 2023)
• Reviewer ICONIP 2022: The 29th International Conference on Neural Information Processing (ICONIP 2022)
• Reviewer CIKM 2022: 31st ACM International Conference on Information and Knowledge Management (CIKM 2022)
• Reviewer Special Interest Group on Information Retrieval (SIGIR 2022 Resource Track)
• Reviewer Journal of Cybersecurity
• Reviewer IEEE Internet Computing
• Reviewer International Conference on Natural Language Processing (ICON 2021)
• Reviewer SIAM International Conference on Data Mining (SIAM 2022)
• Reviewer Springer Journal on Social Network Analysis and Mining (SNAM)
• Reviewer CIKM 2021: 30th ACM International Conference on Information and Knowledge Management (CIKM 2021)
• Reviewer Elsevier Neurocomputing Journal.
• Web chair Reviewer AAAI Workshop on ​ Combating ​ On​line Ho​st​ile Posts in ​ Regional L​anguages dur​ing Emerge​ncy Si​tuation (CONSTRAINT 2021).
• Reviewer SDM 2021: SIAM International Conference on Data Mining (SIAM 2020)
• Reviewer CIKM 2020: 29th ACM International Conference on Information and Knowledge Management (CIKM 2020)
• Web chair Reviewer PAKDD Workshop on Data Science for Fake News (DSFN 2020).
• Reviewer Wiley Expert Systems Journal.
• External reviewer IEEE/WIC/ACM International Conference on Web Intelligence.

---

Open-source contributions

• Awesome Twitter Tools v1.0   A curated list of awesome Twitter tools, libraries and resources.
• The YouTube Scraper   Download YouTube video description and video comments without using the YouTube API.
• Assamese2Vec An open source project for modeling the Assamese Language.

---

Achievements and Awards

• University of Cambridge Wiseman Prize, Department of Computer Science and Technology
• DAAD DAAD AInet fellow 2023, German Academic Exchange Service
• University of Cambridge Member of Trinity College Postdoctoral Society, University of Cambridge.
• ICWSM'22 Awarded ICWSM 2022 Virtual Scholarship.
• ICWSM'21 Awarded ICWSM 2021 Scholarship.
• Rising Stars'21 Rising Star in Data Science organized by the Center for Data and Computing, University of Chicago.
• IDC'19 Awarded 3rd prize for presenting our work on collusive Twitter users at Ninth IDRBT Doctoral Colloquim.
• CODS-COMAD'19 Awarded student travel grant to attend the CODS-COMAD 2019.
• Techniche'12 3rd prize in Coding Competition at IIT Guwahati.
• ISED'16 Grand Challenge Grade A winner, IIT Patna.

---

Media Coverage

• Aamarkatha, Durgapur Media Coverage of our Group in a local daily
• Sambad, Durgapur News Magazine Coverage of our Group

---

Work Experience

• TU Munich DAAD AInet fellow Half-Life of Youtube News Videos
• George Mason University Short-Term Scholar Analysis of Myth-busting Posts to Support Crisis Communication of Public Services
• George Mason University Short-Term Scholar Analysis of Myth-busting Posts to Support Crisis Communication of Public Services
• Cardiff University Visiting Researcher An In-depth Analysis of Abuses in Social Media-Integrating Cues from Language Behaviour and Networks
• IIT Guwahati Assistant Project Engineer Development of Text to Speech System in Assamese and Manipuri Languages

---

Contact

---