Each Year, Landmines Kill Residents of War-Torn Countries. This Innovative Tool Could Save Lives.

Scoping the Problem
Landmines and other explosive remnants of war killed or wounded at least 4,710 people in at least 49 countries in 2022, according to a recent report from the International Campaign to Ban Landmines, with which the Colombian campaign is affiliated. Ukraine reported 608 casualties. Afghanistan documented 303. Colombia recorded 145. 

Humanitarian organizations are working to remove landmines from these countries, but the explosives can be hard to find. Funding for the work is also limited, meaning the organizations often need to decide which contaminated areas to prioritize. Typically, they estimate where hazard areas are located by first surveying residents and analyzing historical landmine data. 

Dulce Rubio and the rest of the research team believe the RELand system, if replicated, can improve that process. 

“There is a lot of uncertainty on where to deploy teams, where to deploy equipment, and that’s affecting both the operational results, but also the funding,” he continued. “They spend most of it just going to places where they’re unsure if the area is actually contaminated.”

The core component of RELand is a computer program that uses machine learning, a form of artificial intelligence, to estimate the risk that landmines pose to an area. Another component is a dataset, on which the computer program is trained to make its decisions. The dataset includes geographic information, sociodemographic variables and indicators that war remnants exist. 

The final component is an interactive web interface that presents the computer program’s findings.

The Colombian Campaign to Ban Landmines, the humanitarian organization that’s been testing RELand, first deployed the system in late summer 2023. By the end of that year, the organization had uncovered three landmines in a region RELand predicted to have many. In the other region, predicted to have few landmines, the organization had found none. 

As of May 2024, no other landmines have been found in either area. 

Dulce Rubio sought advice on his approach to the research from Alexandra Hiniker, the director of CMU’s Sustainability Initiative. Hiniker spent years in Cambodia, Laos and Lebanon working to ban landmines and cluster munitions, and she said RELand could help humanitarian organizations make better decisions about where to focus their time and resources.

The clearing of landmines ensures that communities can build infrastructure, children can safely play outside and residents can live “full and productive lives,” Hiniker said. RELand could make land “safer, faster for people who face this terrible decision everyday of risking their lives to just carry out basic activities.”

How RELand Reached Colombia
Dulce Rubio wasn’t planning on researching landmines in his doctoral program –– until his second year, when he took a course on “Artificial Intelligence Methods for Social Good.” He worked with two other students to propose a solution to a societal problem using artificial intelligence.

By the semester’s end, Dulce Rubio and the other students had developed an initial framework for RELand and had gathered some encouraging results. The students wanted to continue their research, so their professor, Fei Fang, agreed to remain as an advisor. Fang, an associate professor of software and societal systems in the School of Computer Science, has met with them at least twice a month over the last year.

Hoda HeidariRayid Ghani and Silvia Borzutzky, professors from Heinz College and the School of Computer Science, have also collaborated with the students or provided feedback on their work.

Fang encouraged Dulce Rubio to present the team’s early findings to a humanitarian organization in Colombia, as she believed their feedback would be valuable. Eventually, Dulce Rubio connected with an employee of the United Nations Mine Action Service who has since helped the team account for geographic constraints and underreporting, among other issues.

After several conversations with Dulce Rubio, the service put him in touch with Colombian humanitarian organizations that the government has approved to conduct landmine removal operations. Dulce Rubio presented RELand to the Colombian Campaign to Ban Landmines, and the members of the organization agreed to test the system.

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[RELand could make land] safer, faster for people who face this terrible decision everyday of risking their lives to just carry out basic activities.

Alexandra Hiniker, director of CMU’s Sustainability Initiative

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Under Colombian law, people from the affected communities have to perform the operations, a requirement partly intended to employ residents. Dulce Rubio flew to Colombia in May 2023 to train them on RELand, and they began to deploy the system that August. He’s remained in touch with the organization, which will continue to test RELand for another year. 

Hiniker said she values Dulce Rubio’s continued engagement with people and organizations directly impacted by this issue. He’s not “coming in externally and doing the top-down approach that a lot of people who develop technology tend to do,” she said.

“The people directly affected are the people who know the issue best, the ins-and-outs of how it’s actually happening on the ground,” Hiniker said. “If you don’t take into account the reality on the ground, you could actually cause harm.”

What Comes Next
Siqi Zeng, who designed the algorithm for RELand as an undergraduate majoring in mathematics, said the project taught her about collaboration and solidified her interest in developing trustworthy artificial intelligence models. She graduated from CMU in 2023 and is now in the computer science doctoral program at the University of Illinois, Urbana-Champaign.

“We worked on this system for quite a long time, so we faced a lot of challenges that we didn’t expect at the beginning,” Zeng said. “I learned a lot about the challenges of deploying artificial intelligence algorithms in practice.”

The research team’s work was named a finalist in an INFORMS competition that aims to highlight the most exciting student work that has spurred tangible change. Dulce Rubio was also invited to a session, led by the Geneva International Center for Humanitarian Demining, about using artificial intelligence for mine action.

Dulce Rubio believes RELand can help countries impacted by war and civil strife. The lack of access to land has contributed to the armed conflicts in Colombia, he said, and that problem has only continued because land remains contaminated with explosives.

“Being able to reclaim these lands as part of their territories and their lives,” he said, “is actually a thing that can fuel more long-lasting, stable peace.”

Emma Folts is Communications specialist, HeinzCollege, Carnegie Mellon University. The article was originally posted to the website of Carnegie Mellon University.