Mayank Kejriwal

Research Assistant Professor

Ph.D. in Computer Science, University of Texas at Austin, 2016


Mayank Kejriwal is a Research Assistant Professor in the Department of Industrial and Systems Engineering, and a Research Lead at the USC Information Sciences Institute. His research has been, or is currently, funded by programs such as DARPA LORELEI, CauseEx, MEMEX (covered in the press by 60 minutes, Forbes, Scientific American, WSJ, BBC, Wired and several others for its success in spawning real-world systems for tackling human trafficking), AIDA and D3M projects. Prior to joining ISI in 2016, he obtained his Ph.D. from the University of Texas at Austin. His dissertation, titled "Populating a Linked Data Entity Name System", was awarded the Best Dissertation Award by the Semantic Web Science Association in 2017. He is also the author of "Domain-specific Knowledge Graph Construction" (Springer), which has been downloaded thousands of times in the last year and is available internationally.

Dr. Kejriwal is a passionate advocate of using Artificial Intelligence technology for social good, and regularly collaborates with domain-experts to build such systems. He has given talks and tutorials in international academic and industrial venues, most recently serving as a roundtable speaker and participant (on using AI for fighting child trafficking) at the Concordia Summit that was co-held with the UN General Assembly in New York City in September, 2019. Therein, he was co-author of a multi-organization whitepaper on using AI to fight child trafficking. The myDIG system, which he co-built and co-authored and that was a product of the MEMEX program, was nominated for a Best Demonstration award at the prestigious AAAI conference in 2018.


Dr. Kejriwal's research focuses on knowledge graphs (KG), an exciting area of Artificial Intelligence and data analytics research that has found widespread applications in industry (including in e-commerce giants like Amazon, and search providers like Google), academia (health informatics and social sciences) and for social causes (fighting human trafficking and mobilizing resources in the aftermath of crises). Simply put, knowledge graphs are a means to getting a machine to retain and 'understand' knowledge, rather than just raw data. Today, we live in an era when the World Wide Web provides us with an ever-expanding repository of data, yet we are still far from building machines that can process and understand this data in the way that domain experts (or in many cases, ordinary humans) can. Dr. Kejriwal has built and deployed knowledge graph-based systems that have been used by law enforcement and other subject matter experts to fight human trafficking, in addition to tackling other important domains like e-commerce and natural disaster response. Dr. Kejriwal draws on interdisciplinary research inspired by multiple communities in AI and data science, including human-computer interaction, social media, computational social science and Web sciences. His research has been published in top AI venues such as AAAI (nominated for Best Demo), the International Semantic Web Conference (ISWC), ASONAM, ICDM, IEEE Computer and IEEE Intelligent Systems.


Dr. Kejriwal is also the co-author of an upcoming graduate-level textbook on knowledge graphs, to be published in March, 2021 by MIT Press and available for pre-order on Amazon.

Funding and Support

Dr. Kejriwal's work has been funded by DARPA, industry and by private endowments. Currently, he is a Principal Investigator on ISI's funded effort under the DARPA SAIL-ON (Science of Artificial Intelligence and Learning for Open-world Novelty) program and a co-PI on ISI's funded effort under the DARPA Machine Common Sense program.





ISE 540: Text Analytics (Fall 2020, 2021)

ISE 599: Applied Predictive Analytics (Fall 2019)

CSCI 548: Information Integration on the Web (Fall 2016; co-taught with Jose Luis Ambite)


Information Sciences Institute
University of Southern California
4676 Admiralty Way
Marina del Rey, CA 90292