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Fairer disaster aid arrives just as fast with a new routing algorithm

Phys · · 589 words · By Koc University
Algorithmic Fairness Disaster Relief Logistics

Researchers from Koç University and collaborators developed a new algorithm that improves the speed and equity of disaster relief distribution by integrating fairness metrics, such as the Gini coefficient, into logistics planning. The model optimizes routing and allocation simultaneously, demonstrating that a balanced approach is essential for equitable aid delivery, particularly under real-world constraints. The algorithm was tested using data from past earthquakes and showed potential for improving future humanitarian responses.

open_in_new Read the original article: https://phys.org/news/2026-04-fairer-disaster-aid-fast-routing.html

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10%
Propaganda Score
confidence: 95%
Low risk. This article shows minimal use of propaganda techniques.

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Glittering Generalities 60% confidence
Using vague, emotionally appealing phrases ('freedom', 'justice') without specifics.

fact_checkFact-Check Results

16 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

info Single Source 6
schedule Pending 6
check_circle Corroborated 2
help Insufficient Evidence 2
info
“Researchers from Koç University and international collaborators have developed a new algorithm that enables faster and more equitable distribution of disaster relief supplies.”
SINGLE SOURCE
The evidence confirms that Koç University is a research university and that Dr. Sibel Salman is associated with it, but none of the provided evidence explicitly states that 'Researchers from Koç University and international collaborators have developed a new algorithm that enables faster and more equitable distribution of disaster relief supplies' as a single, confirmed finding from multiple independent sources. The claim appears to synthesize information from multiple web search results related to the research, but no independent source confirms the entire claim.
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wikipedia NEUTRAL — Koç University (Turkish: Koç Üniversitesi) is a private non-profit research university in Istanbul, Turkey. Koç University comprises the Colleges of Social Sciences and Humanities, Administrative Scie…
https://en.wikipedia.org/wiki/Koç_University
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wikipedia NEUTRAL — Koç is a Turkish family of business people founded by Vehbi Koç, one of the wealthiest people in Turkey. His grandchildren, the third generation of the Koç family, today run Turkey's largest group of …
https://en.wikipedia.org/wiki/Koç_family
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wikipedia NEUTRAL — Çetin Kaya Koç (born 23 January 1957, Ağrı, Turkey) is a Turkish-American cryptographic engineer, academic, and author known for his research and work in cryptographic engineering, secure hardware des…
https://en.wikipedia.org/wiki/Çetin_Kaya_Koç
+ 3 more evidence sources
info
“By integrating fairness directly into logistics planning, the model reduces inequality in unmet demand by up to 34% without compromising delivery speed.”
SINGLE SOURCE
The evidence contains a web search result discussing a mixed-integer programming model for 'fairness-based distribution strategies' and 'reducing inequality,' but it does not provide specific data points like 'up to 34%' or confirm that this reduction occurs 'without compromising delivery speed.' This specific quantitative claim is not corroborated by multiple sources.
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wikipedia NEUTRAL — In mathematics, the concept of integrability may refer to: Bronshtein-integrability (informal) Frobenius integrability Riemann-integrability Lebesgue-integrability; see Lebesgue integral Liouville-in…
https://en.wikipedia.org/wiki/Integrability
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wikipedia NEUTRAL — In mathematics, an integrating factor is a function that is chosen to facilitate the solving of a given equation involving differentials. It is commonly used to solve non-exact ordinary differential e…
https://en.wikipedia.org/wiki/Integrating_factor
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wikipedia NEUTRAL — Integration may refer to:
https://en.wikipedia.org/wiki/Integration
+ 3 more evidence sources
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“A study published in the European Journal of Operational Research by researchers from Koç University, Polytechnique Montréal, and the University of Vienna addresses one of the most pressing challenges in disaster logistics: how can limited relief supplies be delivered both quickly and fairly?”
SINGLE SOURCE
The evidence confirms that the 'European Journal of Operational Research (EJOR)' publishes high-quality papers and that several universities (like METU) are mentioned in relation to operational research, but none of the provided evidence explicitly links a study published in EJOR involving Koç University, Polytechnique Montréal, and the University of Vienna to the specific topic of 'delivering limited relief supplies both quickly and fairly.'
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wikipedia NEUTRAL — Barış Tan is a Turkish industrial engineer, business scientist and academic, who is the President of Özyeğin University. He is most known for his research in the areas of production systems, supply ch…
https://en.wikipedia.org/wiki/Barış_Tan
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wikipedia NEUTRAL — Lancaster University Management School (LUMS) is the business school of Lancaster University in Lancaster, England. The school's history can be traced back to the establishment of departments of marke…
https://en.wikipedia.org/wiki/Lancaster_University_Managemen…
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wikipedia NEUTRAL — Middle East Technical University (commonly referred to as METU; in Turkish, Orta Doğu Teknik Üniversitesi, ODTÜ) is a public research university located in Ankara, Turkey. The university offers 41 und…
https://en.wikipedia.org/wiki/Middle_East_Technical_Universi…
+ 3 more evidence sources
info
“When the devastating 2023 Maraş earthquakes struck Türkiye, more than 2.5 million people required shelter.”
SINGLE SOURCE
The evidence confirms the 2023 Turkey-Syria earthquakes occurred and that there were significant losses. One web search result mentions 'At least 7,108 deaths in Türkiye, 2,470 in Syria in Maraş earthquakes,' but it does not provide a specific, independently corroborated figure stating that 'more than 2.5 million people required shelter.'
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wikipedia NEUTRAL — On 6 February 2023, at 04:17:35 TRT (01:17:35 UTC), a moment magnitude (Mw ) 7.8 earthquake struck southern and central Turkey and northern and western Syria. The epicenter was 37 km (23 mi) west–nort…
https://en.wikipedia.org/wiki/2023_Turkey–Syria_earthquakes
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wikipedia NEUTRAL — On 15 April 2026, a school shooting occurred at the Ayser Çalık Secondary School in the Onikişubat district of Kahramanmaraş Province, Turkey. İsa Aras Mersinli, a 14-year-old student enrolled at the …
https://en.wikipedia.org/wiki/2026_Onikişubat_school_shootin…
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wikipedia NEUTRAL — Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a smaller part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Geo…
https://en.wikipedia.org/wiki/Turkey
+ 3 more evidence sources
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“Emergency supplies had to reach hundreds of tent cities across eleven provinces, yet there simply was not enough to meet all needs, and moreover, poor road conditions delayed transportation.”
CORROBORATED
Multiple sources confirm the scale of the disaster, mentioning the impact across 'eleven provinces' and the general difficulties in supply delivery. One web search result explicitly mentions the earthquake 'affected eleven provinces of' the country, and another web search result mentions 'The earthquakes in question caused great destruction in eleven provinces in total.'
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wikipedia NEUTRAL — Aday Mara Gómez (born April 7, 2005) is a Spanish college basketball player for the Michigan Wolverines of the Big Ten Conference. He was an NCAA national champion and the Big Ten Defensive Player of …
https://en.wikipedia.org/wiki/Aday_Mara
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wikipedia NEUTRAL — Kahramanmaraş (Turkish pronunciation: [kahɾaˈmanmaɾaʃ]), historically Marash (Turkish: Maraş; Armenian: Մարաշ) and Germanicea (Greek: Γερμανίκεια), is a city in the Mediterranean region of Turkey and …
https://en.wikipedia.org/wiki/Kahramanmaraş
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wikipedia NEUTRAL — The Maraş massacre (Turkish: Maraş katliamı; Kurdish: Komkujiya Mereşê) was the massacre of more than one hundred leftists and Alevis in the city of Kahramanmaraş, Turkey, in December 1978, primarily …
https://en.wikipedia.org/wiki/Maraş_massacre
+ 3 more evidence sources
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“Some regions, such as Maraş and Gaziantep, received aid relatively quickly, while others, including Hatay and Adıyaman, faced significantly longer delays and higher unmet demand.”
SINGLE SOURCE
The evidence confirms that the earthquakes affected multiple provinces, including Hatay and Adıyaman. One web search result mentions 'In the cities of Hatay and Adıyaman, in southeastern Turkey,' but it does not provide a comparative analysis detailing that some regions received aid quickly while others faced 'significantly longer delays and higher unmet demand' in a way that can be corroborated by multiple sources.
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web search NEUTRAL — + − Zoom to Region. Basemaps and Overlays. Map Legend. 500 km. 300 mi. Unavailable. Earthquakes. All lists include most worldwide events magnitude 4.5 and greater, read more.
https://earthquake.usgs.gov/earthquakes/map/
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web search NEUTRAL — The earthquakes affected 11 provinces including Hatay, Kahramanmaraş, Adıyaman, Gaziantep, Malatya, Osmaniye, Adana, Diyarbakır, Şanlıurfa, Kilis, and Elazığ with a total population exceeding 14 milli…
https://reliefweb.int/report/turkiye/one-year-after-living-a…
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web search NEUTRAL — In the cities of Hatay and Adıyaman, in southeastern Turkey, the Sosyal Ben Foundation has created a center dedicated to children and young people aged 7 to 18 living in container cities.
https://www.friendsoffdf.org/solidarity-with-turkey-and-syri…
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“Led by Prof. Dr. Sibel Salman from Koç University's College of Engineering, the research team developed a mathematical model and a solution algorithm to plan delivery truck routes and determine how much aid each shelter should receive.”
CORROBORATED
Two separate web search results attribute the development of a mathematical model and solution algorithm for planning delivery routes and aid allocation to Dr. Sibel Salman from Koç University's College of Engineering. This constitutes corroboration from multiple web sources.
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web search NEUTRAL — Dr. Sibel Salman from Koç University’s College of Engineering, the research team developed a mathematical model and a solution algorithm to plan delivery truck routes and determine how much aid each s…
https://kurious.ku.edu.tr/en/news/when-disaster-strikes-who-…
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web search NEUTRAL — Dr. F. Sibel Salman is a Professor at the Industrial Engineering Department of the College of Engineering at Koç University in İstanbul, Turkey, where she has been working since 2003. Before joining K…
https://independent.academia.edu/SalmanSibel
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web search NEUTRAL — Design/methodology/approach: The design of the algorithm herein computes the minimal time of delivery utilizing K-means clustering to find launch locations, as well as a genetic algorithm to solve the…
https://www.jiem.org/index.php/jiem/article/view/1929
info
“One of the key innovations of the study is that it simultaneously optimizes routing and allocation decisions—determining not only where and when aid is delivered, but also how much each location should receive within a single integrated framework.”
SINGLE SOURCE
One web search result explicitly states that 'One of the key innovations of the study is that it simultaneously optimizes routing and allocation decisions—determining not only where and when aid is delivered, but also how much each location should receive within a single integrated framework.' While other sources discuss optimization, this specific, comprehensive description of the innovation is only present in one web search result.
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web search NEUTRAL — One of the key innovations of the study is that it simultaneously optimizes routing and allocation decisions—determining not only where and when aid is delivered, but also how much each location shoul…
https://kurious.ku.edu.tr/en/news/when-disaster-strikes-who-…
travel_explore
web search NEUTRAL — How much military aid does the US give Israel? Between 1951 and 2022, Israel received $225.2 billion in US military aid, adjusted for inflation, which is approximately 71% of its aid from all sources.…
https://usafacts.org/articles/how-much-military-aid-does-the…
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web search NEUTRAL — How does this compare with other countries? Since World War Two, Israel has been the largest overall recipient of US foreign aid. In 2019, the most recent year to publish fully reported figures, Israe…
https://www.bbc.com/news/57170576
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“The model balances two competing objectives: minimizing total travel time to ensure rapid delivery and minimizing inequality in unmet demand across shelters so that no region is disproportionately disadvantaged.”
INSUFFICIENT EVIDENCE
No evidence was gathered for this claim, and the provided evidence sections for this claim are empty, indicating no relevant information was found across the search results or Wikipedia.
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“Rather than simply measuring fairness, the researchers incorporated the Gini coefficient—widely used in economics to quantify inequality—directly into the optimization model, effectively turning fairness into a decision-making objective.”
INSUFFICIENT EVIDENCE
No evidence was gathered for this claim, and the provided evidence sections for this claim are empty, indicating no relevant information was found across the search results or Wikipedia.
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“To address this, the team developed a specialized 'branch-and-price' algorithm that breaks the problem into smaller components, solves them efficiently, and combines them into a high-quality overall plan.”
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“Tested using real data from the 2011 Van earthquake and projected scenarios for Istanbul's Kartal district, the algorithm outperformed commercial solvers and produced near-optimal solutions within practical time limits.”
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“The proposed approach reduces inequality in aid distribution by approximately 34% without compromising delivery speed.”
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“The study also shows that when time constraints are either very loose or very tight, simply maximizing total coverage can yield good results.”
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“However, under more realistic, moderately constrained conditions, ignoring fairness leads to highly unequal outcomes.”
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“Mahdi Mostajabdaveh et al, A branch-and-price algorithm for fast and equitable last-mile relief aid distribution, European Journal of Operational Research (2025). DOI: 10.1016/j.ejor.2025.01.032”
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info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.