João Coelho

2026

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Agentic Search in the Wild: Intents and Trajectory Dynamics from 14M+ Real Search Requests.
Zhaohua Zhang|Jingjie Ning|João Coelho|Boran Hou|Zhaohua Zhang|Jingjie Ning|Masoud Makrehchi|Chenyan Xiong|Yibo Kong|Rebecca J. Stones|João Coelho|Boran Hou|Yunfan Long|Gang Wang|Yibo Kong|Rebecca J. Stones|Xiaoguang Liu|Bruno Martins|Yunfan Long|Gang Wang|João Magalhães|Xiaoguang Liu|Bruno Martins|Jamie Callan|Masoud Makrehchi|Chenyan Xiong
Proceedings of the 49th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2026, MelbourneVICAustralia, July 20-24, 2026

2025

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TeamCMU at Touché: Adversarial Co-Evolution for Advertisement Integration and Detection in Conversational Search.
To Eun Kim|João Coelho|Gbemileke Onilude|Jai Singh
Working Notes of the Conference and Labs of the Evaluation Forum, CLEF 2025, Madrid, Spain, 9-12 September 2025.
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Aligning Web Query Generation with Ranking Objectives via Direct Preference Optimization.
João Coelho|Bruno Martins|João Magalhães|Chenyan Xiong
Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025