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Sahar Vahdati

4 accepted papers

2026

Advancing Safe Mechanical Ventilation Using Offline RL with Hybrid Actions and Clinically Aligned Rewards

AAAI 2026technical

Invasive mechanical ventilation (MV) is a life-sustaining therapy commonly used in the intensive care unit (ICU) for patients with severe and acute conditions. These patients frequently rely on MV for breathing. Given the high risk of death in such cases, optimal MV settings can reduce mortality, mi

Cited by 0SourcePDFScholar
2024

Knowledge GeoGebra: Leveraging Geometry of Relation Embeddings in Knowledge Graph Completion

COLING 2024main

Knowledge graph embedding (KGE) models provide a low-dimensional representation of knowledge graphs in continuous vector spaces. This representation learning enables different downstream AI tasks such as link prediction for graph completion. However, most embedding models are only designed consideri…

2021

5* Knowledge Graph Embeddings with Projective Transformations

AAAI 2021technical

Performing link prediction using knowledge graph embedding models has become a popular approach for knowledge graph completion. Such models employ a transformation function that maps nodes via edges into a vector space in order to measure the likelihood of the links. While mapping the individual nod…

Cited by 41SourcePDFScholar
2021

Knowledge Graph Representation Learning using Ordinary Differential Equations

EMNLP 2021main

Knowledge Graph Embeddings (KGEs) have shown promising performance on link prediction tasks by mapping the entities and relations from a knowledge graph into a geometric space. The capability of KGEs in preserving graph characteristics including structural aspects and semantics, highly depends on th…