Author

Lin-Hai Ma

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Preprint Aug 2026

Factorized Hypothesis Search for Evidence-to-Taxonomy Retrieval

Large-taxonomy retrieval often assumes that the input already expresses the target concept. In many settings, however, the input is indirect evidence, such as a table cell whose meaning depends on its row, column, datatype, and context. We call this mismatch the retrieval readiness gap. Our analysis shows that the curr...

Lin-Hai Ma, Ethan F. Wei, Xue-Qing Peng et al. · 0 citations

#artificial intelligence Preprint Aug 2026

Assessing Suicide Risk in Arabic Crisis Helpline Calls: A Comparison of Arabic and English Large Language Models

Crisis helplines assess suicide risk through structured interviews, a process that is slow and dependent on operator training and workload. Natural language processing could support risk assessment and call prioritization, but almost no work addresses Arabic-language helpline calls or operates within the privacy constr...

Lin-Hai Ma, Rita El Hachem, Mahatab El Hajj et al. · 0 citations