David Wild — Indiana University

About

David Wild

David Wild at Öxarárfoss, Iceland

I am Professor of Informatics and Computing at Indiana University Luddy School, where I direct RedLab and lead a group researching representing and reasoning for data that is messy, incomplete, and spread across sources. These methods are applied in drug discovery, healthcare, emergency response, economics, cybersecurity and defense.

I trained as a computer scientist and spent the first part of my career in the pharmaceutical industry, leading scientific computing teams in computational chemistry and molecular modeling. I came to Indiana University in 2005 from that industry background, which still shapes how I work: I am equally interested in whether something functions in the field and whether it is elegant in theory.

For over ten years I practised as a volunteer EMT and emergency manager, which gave me a new lens on technology and data in critical decision making. The gap between the data that exists and the decision that has to be made is what most of my work is about.

I love creating and exploring new ideas and possibilities. I still write code, I am a persistent tinkerer with new tools, and I read widely outside my field. I write about AI and its wider consequences at Prior Shift. Originally from the UK; based in Bloomington, Indiana.

Research scope

Reasoning over incomplete and heterogeneous evidence

My research concerns acquiring, building and reasoning over data in domains where data acquisition is difficult, data is incomplete and heterogeneous, and decisions are consequential. Methods include graph, semantic and topological representation, machine learning, embeddings and language models and human-computer interaction design frameworks that put structure in front of the person who has to act.

A network with unobserved nodes Two dense clusters of entities joined by a narrow bridge. Several nodes are unobserved, yet the bridge — the structurally significant feature — remains readable.
observed unobserved A partially observed network. Unobserved membership of the network can be inferred through the existing paths and structures.

Application Areas

Grounded in drug discovery, exploring new applications

The mathematical methods apply to any domain where the data is complex, heterogeneous and incomplete. They were developed against the most complex system we know of - the human body - and are now being applied in areas including situational awareness and cybersecurity.

Grounded in

Drug discovery and healthcare

Where the methods were built and where they continue to impact: cheminformatics, bioinformatics, chemogenomics, and link prediction over sparse biological evidence — most recently yielding experimentally confirmed drug candidates for tuberculosis.

Current focus

Situational awareness

First responders, disaster responders, and emergency managers have to make decisions in complex, adverse, and data overload contexts. My focus is on filling data gaps, fusing heterogeneous real-time streams, and surfacing the signal in an actionable way in high stress environments.

Extending to

Cybersecurity, multi-domain

Increasingly decisions have to be made across domains and with overlapping data and expertise structures, for example, in cyber-physical systems. These same methods can be applied at higher or different abstraction levels across domains, maybe even to enable decisions that go beyond human capacity to acquire and fuse data.

Research topics

Topics and select publications

For full publication list see my Google Scholar profile.

Semantic graph and topological representation

Integrating heterogeneous, often messy sources into a single object that permits inference: semantic frameworks, linked open data, ontological annotation, learned embeddings, and the topography of high-dimensional activity spaces. The representational choices made here determine what can subsequently be computed.

  1. 2019

    Gao Z, Fu G, Ouyang C, Tsutsui S, Liu X, Yang JJ, Gessner C, Foote B, Wild DJ, Ding Y, Yu Q. edge2vec: representation learning using edge semantics for biomedical knowledge discovery. BMC Bioinformatics 20:306.

  2. 2016

    Kulkarni VS, Wild DJ. An activity canyon characterization of the pharmacological topography. Journal of Cheminformatics 8:41.

  3. 2013

    Willighagen EL, Waagmeester A, Spjuth O, Ansell P, Williams AJ, Tkachenko V, Hastings J, Chen B, Wild DJ. The ChEMBL database as linked open data. Journal of Cheminformatics 5:23.

  4. 2012

    Kong X, Yu PS, Ding Y, Wild DJ. Meta path-based collective classification in heterogeneous information networks. Proceedings of the 21st ACM International Conference on Information and Knowledge Management (CIKM) 1567–1571.

  5. 2010

    Chen B, Dong X, Jiao D, Wang H, Zhu Q, Ding Y, Wild DJ. Chem2Bio2RDF: a semantic framework for linking and data mining chemogenomic and systems chemical biology data. BMC Bioinformatics 11:255.

Reasoning over heterogeneous evidence

Inference across integrated biological, chemical and clinical evidence: estimating what is absent, treating the pattern of absence as evidence in its own right, and keeping provenance inspectable where ground truth is uncertain. Carried through, in the tuberculosis work, to wet-lab confirmed drug candidates.

  1. 2024

    Yang JJ, Goff A, Wild DJ, Ding Y, Annis A, Kerber R, Foote B, Passi A, Duerksen JL, London S, Puhl AC, Lane TR, Braunstein M, Waddell SJ, Ekins S. Computational drug repositioning identifies niclosamide and tribromsalan as inhibitors of Mycobacterium tuberculosis and Mycobacterium abscessus. Tuberculosis 146:102500.

  2. 2022

    Yang JJ, Gessner CR, Duerksen JL, Biber D, Binder JL, Ozturk M, Foote B, McEntire R, Stirling K, Ding Y, Wild DJ. Knowledge graph analytics platform with LINCS and IDG for Parkinson's disease target illumination. BMC Bioinformatics 23:37.

  3. 2021

    Yang JJ, Grissa D, Lambert CG, Bologa CG, Mathias SL, Waller A, Wild DJ, Jensen LJ, Oprea TI. TIGA: target illumination GWAS analytics. Bioinformatics 37(21):3865–3873.

  4. 2018

    Seal A, Wild DJ. NetPredictor: R and Shiny package to perform drug–target network analysis and prediction of missing links. BMC Bioinformatics 19:265.

  5. 2018

    Passi A, Rajput NK, Wild DJ, Bhardwaj A. RepTB: a gene ontology based drug repurposing approach for tuberculosis. Journal of Cheminformatics 10:24.

  6. 2015

    Seal A, Ahn Y-Y, Wild DJ. Optimizing drug–target interaction prediction based on random walk on heterogeneous networks. Journal of Cheminformatics 7:40.

  7. 2013

    Seal A, Yogeeswari P, Sriram D, OSDD Consortium, Wild DJ. Enhanced ranking of PknB inhibitors using data fusion methods. Journal of Cheminformatics 5:2.

  8. 2012

    Chen B, Ding Y, Wild DJ. Assessing drug target association using semantic linked data. PLoS Computational Biology 8(7):e1002574.

  9. 2012

    Wild DJ, Ding Y, Sheth AP, Harland L, Gifford EM, Lajiness MS. Systems chemical biology and the Semantic Web: what they mean for the future of drug discovery research. Drug Discovery Today 17:469–474.

Decision support and human factors in emergency and critical settings

Getting structure in front of a responder, commander or analyst in a form they can act on — and understanding the people on the other side of it: what information they actually need, how they experience vulnerability, and when such systems are and are not trusted.

  1. 2026

    Rolfson A, Rosen A, Jennings C, Wild DJ. Using semi-structured interviews to elicit information needs and flows for pre-incident planning and technology implementation in emergency management and response. Journal of Homeland Security and Emergency Management, submitted.

  2. 2023

    Obi I, Paul LJ, Liao W, Loukil M, Hayashi S, Comer M, Rogers CO, Wild DJ, Shih PC. Project APRED: a web-based data analytics platform for supporting community disaster resilience. Journal of Emergency Management 21(5):399–419.

  3. 2023

    Hill JJ, Wild DJ, Schmidt PM. Optimizing virtual health technologies through a performance-based readiness model: lessons from the field deployment of the National Emergency Tele-Critical Care Network. Military Medicine 188(Suppl 6):377–384.

  4. 2022

    Seberger JS, Obi I, Loukil M, Liao W, Wild DJ, Patil S. Speculative vulnerability: uncovering the temporalities of vulnerability in people's experiences of the pandemic. Proceedings of the ACM on Human-Computer Interaction 6(CSCW2):1–27.

  5. 2022

    Dubois E, Yuan X, Bennett Gayle D, Khurana P, Knight T, Laforce S, Turetsky D, Wild DJ. Socially vulnerable populations adoption of technology to address lifestyle changes amid COVID-19 in the US. Data and Information Management 6(2):100001.

Cybersecurity and autonomous defense

The newest strand: applying the same graph and inference machinery where the adversary is active and the time budget is measured in seconds rather than months.

  1. 2026

    Vallabhaneni U, Cagwin CL, Wild DJ. SENTINEL-RL: offloading topological reasoning from LLM agents in the security operations center. arXiv:2609.04159 [cs.CR].

Digital transformation and data science process

How organisations and teams actually adopt these methods: the process, the project management, and the education that has to accompany them.

  1. 2023

    Bentum S. Digital transformation strategies for applied science domains. Doctoral dissertation, Indiana University; supervised.

  2. 2018

    Saltz J, Hotz N, Wild DJ, Stirling K. Exploring project management methodologies used within data science teams.

  3. 2015

    Fox G, Maini S, Rosenbaum H, Wild DJ. Data science and online education. IEEE 7th International Conference on Cloud Computing Technology and Science (CloudCom).

Full list at Google Scholar.

Affiliations

Labs, groups and affiliations

DIRECTOR

RedLab

Artificial intelligence for command, control and communications, and critical infrastructure technologies for first responders, cybersecurity and defense. Spanning basic research through to operational application. Successor to the Crisis Technologies Innovation Lab.

DIRECTOR

Structural reasoning group

The methodological core: graph and semantic representation, topological structure, and inference under partial observation

Core faculty

Luddy AI Center

Center of foundational and applied research in AI at Indiana University

Faculty fellow

IU Applied Research Center

Exploring applications in defense including international disaster response, safety, military medicine and situational awareness.

Faculty Fellow

Center for Applied Cybersecurity Research

Alongside faculty appointments in cybersecurity and data science at the Luddy School — the institutional home for the security applications of this work.

Lead Instructor

Project based learning

I am lead instructor or co-instructor for several applied project-based learning classes, including IU's Hacking for Defense program.

Contact

Enquiries


Luddy School of Informatics, Computing and Engineering
Indiana University, Bloomington