is a group of researchers who study, analyze, and build different aspects of social systems (e.g. social web systems like Twitter, Facebook), including their security and privacy. By understanding and measuring complex networks, we try and build solutions for social good. Our work primarily derives from Data Science, Computational Social Science, Social Computing,
Machine Learning, and Natural Language Processing.

What's New!

Doing research, building solutions, making a difference in Society

October 2018: Total views of #PSOSMonNPTEL and #HCIonNPTEL courses together cross 100,000! Course Content

October 2018: Yashovardhan Sharma, #PrecogAlum, receives the Commonwealth Scholarship to study Ph.D. in the Department of Computer Science at University of Oxford.

October 2018: PK will be in conversation with Prof. Dena Haritos Tsamitis, Professor CMU about Graduate School Admissions on 2nd October, Facebook Live.

September 2018: Kushagra Bhargava, #PrecogAlum, is selected as a 2018 Youth@IGF Fellow to attend the Internet Governance Forum (IGF) in UNESCO Headquarters Paris, Nov 2018.

September 2018: Kaustubh Welankar, B.Tech. #ClassOf2020 blogs about his experience with us: "A Summer at Precog".

September 2018: Divyansh, who is joining CMU for his Masters, blogs his experience with us: "A tryst with Precog: My journey of 2 years, an adventure of a lifetime".

September 2018: PK visited IIT Gandhinagar: Interacted with faculty, students, delivered a technical talk and another on graduate school admissions. Pics

September 2018: Registrations are now open for "2nd Winter School on User Experience Design" at IIIT Hyderabad, co-organized by Precog! Click here to register.

August 2018: Daksh Shah, B.Tech. #ClassOf2021 blogs about his experience with VideoLAN @GSoC: "My GSoC experience with VLC (macOS Interface Redesign)".

August 2018: Our Election 2014 Twitter Dataset is now public

August 2018: PK was in conversation with Prof. Narendra Ahuja, Professor UIUC about "How to do impactful research?". Video

August 2018: PK expressed his opinions about #FakeNews which got covered in Business Standard Hindi Edition

August 2018: PK visited IIIT Sri City, evaluated the 1st MS thesis of IIIT Sri City. Pics

August 2018: PK was in conversation with Prof. Ben Y. Zhao, Professor University of Chicago about Graduate School Admissions. Part 1 | Part 2 | Full audio transcript

August 2018: Our work on #WhatsApp #FakeNews got covered in The Times of India, The Economic Times, India Today, Outlook India.

July 2018: Gurpriya Bhatia successfully defended her Masters thesis "WorkerRep: Building Trust on Crowdsourcing Platform Using Blockchain". Slides | Video | Pics | Code.

July 2018: PK did mini academic tour of Tamil Nadu, visiting CEG, VIT, SSN, IIT Madras, TCE, KERA

July 2018: Simran Saxena, M.Tech. #ClassOf2018 blogs about her experience with us: The Chronicles of Precog: The Deep Dives, the Socials and the Mailing Lists.

July 2018: Our work "Empowering First Responders through Automated Multimodal Content Moderation" received Best paper award at IEEE International Conference on Cognitive Computing 2018 | Paper | Code & Annotated data | Slides

July 2018: Slides, videos, (code/lab) sessions of the Social Network Analysis days of the Summer School are now public.

July 2018: Vasundhara Ghose successfully defended her Masters thesis "Collecting Linked User Identities Across Online Social networks". Pics

June 2018: PK delivered a talk on Social Computing for Business: Opportunities & Challenges at Honeywell Technology Solutions. Pics.

June 2018: PK captures his experience of teaching his course in IIITD: "Another amazing edition of CSE 501: Designing Human Centered Systems".

June 2018: PK gave a lecture on Social Media as part of the NKN based Faculty Development Programme on "Internet of Things (IoT) at NIT Warangal. Pics.

June 2018: Divam Gupta, B.Tech. #ClassOf2018 blogs about his experience with us: "My enriching journey with Precog".

June 2018: Anshuman Suri, B.Tech. #ClassOf2018 blogs about his experience with us: "Sojourn of an introvert at PreCog".

May 2018: Singh, K., Sen, I. and Kumaraguru, P. A Twitter Corpus for Hindi English Code Mixed Dataset for POS Tagging. Accepted in the Sixth International Workshop on Natural Language Processing for Social Media (SocialNLP 2018). Author's version | Code | Annotated data

May 2018: PK's TED Talk, "Saving Lives: How Many Likes Is Your Life Worth?" is now available on TEDx Talks YouTube Channel.

May 2018: Indira Sen, M.Tech. #ClassOf2018 blogs about her experience with us: "Chi Square Tests, Calendar Events and Cake : A Three Act Precog Tale".

May 2018: Precogs are going places. A list of places where some Precogs will be spending their summer: Inria, France, Carnegie Mellon University, USA, MPI-SWS, Germany, Google Summer of Code, and University of Southern California.

May 2018: Our Graduating Batch (#ClassOf2018) is going places! The growing list of places they are going to: New York University, Goldman Sachs, Microsoft Hyderabad, University of Maryland, Carnegie Mellon University, University of Southern California, and Directi.

April 2018: Gupta, D., Sen, I., Sachdeva, N., Kumaraguru, P. and Buduru, A. Empowering First Responders through Automated Multimodal Content Moderation. Accepetd at The Second IEEE International Congress on Cognitive Computing, San Francisco, 2-7 July, 2018. Author's version.

April 2018: Singh, K., Sen, I. and Kumaraguru, P. "Language Identification and Named Entity Recognition in Hinglish Code Mixed Tweets". Accepted in the ACL Student Research Workshop. 2018. Author's version | Code

April 2018: Simran Saxena successfully defended her Masters thesis "Confidentiality Protection in Crowdsourcing". Slides | Video

April 2018: PK delivered a Live session with students at Carnegie Mellon University regarding graduate admissions.

March 2018: PK delivered a talk on Social Computing at Greater Noida Institute of Technology. Pics.

March 2018: Sen, I., Aggarwal, A., Mian, S., Singh, S., Kumaraguru, P. and Datta, A. Worth its Weight in Likes: Towards Detecting Fake Likes on Instagram. Accepetd as a short paper in the 10th ACM Conference on Web Science, Amsterdam, 27-30 May 2018. Author's version.

March 2018: Gupta, S., Kuchhal, D., Gupta, P., Ahamad, M., Gupta, M. and Kumaraguru, P. "Under the Shadow of Sunshine: Characterizing Spam Campaigns Abusing Phone Numbers Across Online Social Networks. Accepted in the 10th ACM Conference on Web Science, Amsterdam, 27-30 May 2018. Author's version.

March 2018: PK delivered a TEDx talk at Maharaja Agrasen Institute of Technology. Pics | Slides

March 2018: PK delivered a talk at the panel "Privacy: Reaching All Communities" as part of the Workshop on Privacy & Growth in a Global Economy, organised by U.S. Department of State, Federal Trade Commission - USA, U.S.-India Business Council, and U.S. Chamber of Commerce.

February 2018: The Economic Times (Page 22) carries extensive data from our #KillFie research and publishes a full page article on the topic, "Objects in the Camera are Deadlier Than You Think". Read the article here.

February 2018: Nanda, V., Lamba, H., Agarwal, D., Arora, M., Sachdeva, N., and Kumaraguru, P. Stop the Killfies! Using Deep Learning to Identify Dangerous Selfies. Accepted at the 9th International Workshop on Modeling Social Media (MSM'2018) Applying Machine Learning and AI for Modeling Social Media.

February 2018: Indian Express Page 6 today publishes our work on #BlueWhale "Project to flag Blue Whale victims". Access the full report from here.

February 2018: PK delivered a talk on Social Media Forensics at the 24th All India Forensic Science Conference in Gujarat University, Ahmedabad.

January 2018: PK was speaking LIVE about our work on Selfie Deaths on Roundhouse Radio 98.3 (a radio channel based in Canada) at 2245hrs IST on Januray 30, 2017! Listen to the conversation here.

January 2018: Dhruv Kuchhal, B.Tech. #Classof2018 from MAIT, Delhi blogs about his experience with us: “PreCog : The Google of Research Groups". Dhruv interned with us in summer 2017 and is continuing to work with us!

January 2018: PK inaugurated the Cybersecurity Research Group, SherLocked at Department of Computer Science Bennett University, and delivered the ACM Distinguished talk.

January 2018: Goel, M., Agrawal, A., Garcia, D. and Kumaraguru, P. Collective Aspects of Privacy in the Twitter Social Network. Accepted at The European Physical Journal Data Science 2018. Author's version.

January 2018: Our recent technical report, on the Blue Whale Challenge, in order to analyze its effect on social networks like VK, Twitter and Instagram to spot the behavior of users and study their demographics."White or Blue, the Whale gets its Vengeance: A Social Media Analysis of the Blue Whale Challenge". You can request for the dataset from here.

December 2017: Gupta, S., Khattar, A., Gogia, A., Kumaraguru, P. and Chakraborty, T. Collective Classification of Spam Campaigners on Twitter: A Hierarchical Meta-Path Based Approach. Accepted at The Web Conf 2018 (Formerly WWW Conference). Author's version.

November 2017: Indira Sen successfully defended her Masters thesis "InstaFake: Detecting Fake Engagement on Instagram". Slides | Video

November 2017: Aggarwal, A., Viswanath, B., Zhang, L., Kumar, S., Shah, A. and Kumaraguru, P. I Spy with My Little Eye: Analysis and Detection of Spying Browser Extensions. Accepted at 3rd IEEE European Symposium on Security and Privacy. Author's version.

November 2017: Aggarwal, A., Kumar, S., Bhargava, K., and Kumaraguru, P. The Follower Count Fallacy: Detecting Twitter Users with Manipulated Follower Count. Accepted at 33rd ACM / SIGAPP Symposium on Applied Computing. Author's version.

November 2017: Mr. Prateek Dewan --> Dr. Prateek Dewan. Thesis | Slides | Video

November 2017: We are looking for full time Ph.D. students, full time Research Associates, and interns for summer 2018 to join us. Apply here.

October 2017: PK will be speaking LIVE about our work on Selfie Deaths on Doordharshan TV Channel (DD National) at 1700hrs IST on Oct 30, 2017!

October 2017: Kartik Sethi, B.Tech. #Classof2018 from BITS Pilani, Hyderabad Campus, blogs about his experience with us: Precog: A to Z.

October 2017: Saravana Kumar, B.Tech. #Classof2017 from College of Engineering, Guindy, blogs about his experience with us: Precog 101. Saravana was one of the star interns from Summer 2016 and has started Masters in Computer Science at The Ohio State University, this fall 2017.

October 2017: PK will be conducting a session on Graduate School Admissions at IIIT Bangalore on Oct 24, 2017. Facebook Event.

October 2017: Zoha Hamid, 3rd semester B.Tech., receives the LearnIT Girl! scholarship. This scholarship helps women around the globe to be mentored by successful technocrats to develop cool projects.

October 2017: Divyansh Agarwal, Research Associate, is selected as one of 2017 Youth@IGF Fellow to attend the Internet Governance Forum to be held in Geneva in Dec 2017.

October 2017: PK will be conducting a Facebook LIVE session on Graduate School Admissions on Oct 14, 2017. Interested stakeholders may join here.

October 2017: PK will be offering "Introduction to Human Computer Interaction" on NPTEL. This course will be offered from Jan - April 2018.

October 2017: PK's new blog "This is Why I Love My Job #2" capturing the fantastic achievements by our students graduating this year and moving on to next phase in their life! #BestLuckToThem

October 2017: Srishti presented her Ph.D. thesis work at the Computer Science Doctoral Symposium, organized by NIIT University. 17 Ph.D. students from all around the country attended the Symposium, including 4 from #IIITD.

October 2017: Dhruv #Classof2018 at Maharaja Agrasen Institute of Technology presented his Summer 2017 internship work with us to 150+ 3rd and 5th semester students. Dhruv's work was selected as one of the best Summer 2017 work by his college authorities.

September 2017: PK will be co-organizing a Winter School on User Experience Design.

September 2017: Vivek Gupta, B.Tech. #Classof2019 from IIT Kharagpur, blogs about his experience with us: Precog: The Quintessential Group

September 2017: PK is organizing a Session on Graduate School Application / Admissions on Sept 23, 2017, at IIITD. Interested people (student, professional) should register here for attending the session.

August 2017: Singh, S., Nanda, V., Sen, R., Sengupta, S., Kumaraguru, P., and Gummadi, K. Leveraging Facebook’s Free Basics Engine for Web Service Deployment in Developing Regions (ICTD) 2017, November 16–19, 2017, Lahore, Pakistan. Author's version | Slides.

August 2017: Bhavna Nagpal, B.Tech. Class of 2017 and currently pursing Masters in Design from IIT Guwahati, blogs her experience with us: Pages from a chapter called Precog

August 2017: Prateek Dewan, Ph.D. student becomes one of the 15 researchers from Asia-Pacific region who got selected for NextGen@ICANN60. They will be funded to attend to the ICANN60 in Abu Dhabi, UAE.

August 2017: Arpit Gogia, Graduating class of 2018, B.Tech. from DTU, blogs about his experience with us: The Anatomy of a Precog Internship!

July 2017: Goel, S., Ahuja, S., Subramanyam, A., Kumaraguru, P. #VisualHashtags: Visual Summarization of Social Media Events Using Mid-Level Visual Elements. Accepted at 25th ACM Conference on MultiMedia 2017. Author's version | Slides

July 2017: Call for Ph.D. and Research Associate applications . Apply

July 2017: Ms. Niharika Sachdeva --> Dr. Niharika Sachdeva. Thesis | Slides

July 2017: Dipjyoti Bisharad, Graduating class of 2018, B.Tech. from NIT Silchar, blogs about his experience with us: "A stay of 2 months: An experience of lifetime"

July 2017: Kaushal, R., Chandok, S., Jain, P., Dewan, P., Gupta, N., Kumaraguru, P. Nudging Nemo: Helping Users Control Linkability across Social Networks. Accepted at 9th International Conference on Social Informatics, 2017. Paper

July 2017: Mallika Agarwal blogs her experience with us! "On Precog, PK (and everything else that fits between the two entities)"

July 2017: Mayank Vachher blogs about his experience with Precog: "Standing on the shoulders of giants"

July 2017: Srishti Chandok successfully defended her Masters thesis "User Identities Across Social Networks: Quantifying Linkability and Nudging Users to control Linkability. Thesis

July 2017: Shri Nitin Gadkari, Hon'ble Union Minister of Road Transport & Highways and Shipping makes reference to our research on Selfie Deaths / KillFies! Video

June 2017: Mark dangerous locations in the world using our Saftie & Chat Bot to reduce selfie deaths.

June 2017: PK’s FAQs - Preparing, Applying and Deciding on Graduate Schools.

May 2017: PK is offering the Privacy and Security in Online Social Media (PSOSM) course on NPTEL. Registration started | Teaser Video | Flier.

May 2017: Sonu Gupta successfully defended her M.Tech. thesis at JIIT, advised by Prof. Shelly Sachdeva. Sonu collaborated heavily with Prateek Dewan on this thesis work.

May 2017: Mayank Verma successfully defended his M.Tech. thesis at JIIT. Thesis was co-advised by Anuradha Gupta, faculty at JIIT and PK.

May 2017: Our work on Selfie deaths got captured in an article on Factory Daily, "What makes India the selfie death capital of the world?". PK’s interview on the topic.

Apr, 2017: Precogs won the Honarable Mention at the ICADABAI Hackathon 2017, part of 5th IIMA International Conference on Advanced Data Analysis, Business Analytics, and Intelligence at IIM Ahmedabad held on April 08 - 09, 2017. Team members: Neha, Saravana, Kushagra, Divyansh, Nalin, Sahar.

Apr, 2017: Our paper titled "On the Security and Usability of Dynamic Cognitive Game CAPTCHAs" gets accepted at the Journal on Computer Security (JCS). Authors: Manar Mohamed, Song Gao, Niharika Sachdeva, Nitesh Saxena, Chengcui Zhang, PK, and Paul van Oorschot.

Apr, 2017: Our paper titled "Facebook Inspector (FbI): Towards Automatic Real Time Detection of Malicious Content on Facebook" gets accepted at the Journal of Social Network Analysis and Mining (SNAM). Authors: Prateek and PK.

Apr, 2017: Registrations are now open for "Summer School on Privacy and Security on Online Social Networks" at IIIT Hyderabad, co-organized by Precog! Click here to register.

Feb, 2017: Our full paper submission "From Camera to Deathbed: Understanding Dangerous Selfies on Social Media" got accepted as Poster at The 11th Conference on Web and Social Media (ICWSM) 2017! Authors: Hemank Lamba, Varun Bharadhwaj, Mayank Vachher, Divyansh Agarwal, Megha Arora, Niharika Sachdeva and PK.

Feb, 2017: We are organizing a Summer school on Privacy and Security in Online Social Networks in collaboration with IIIT-Hyderabad during July, 2017.

Jan, 2017: Our paper "A Social Media Based Index of Mental Well-Being in College Campuses" accepted at ACM CHI Conference on Human Factors in Computing Systems. Authors: Shrey, PK, Munmun.

Jan, 2017: Niharika is now on the Program Committee of The Eleventh International Conference on Digital Society and eGovernments ICDS 2017. Congrats Niharika!

Jan, 2017: Indira and Kushagra Singh won the Second Prize in Tool contest at International Conference on Natural Language Processing (ICON), 2016. They built a POS tagger for code mixed data for three language pairs (Hindi-English, Bengali-English and Telegu-English) from Twitter, Facebook and WhatsApp. There were 15 entries for the contest.