Search Results for author: Hassan Mortagy

Found 3 papers, 2 papers with code

Mixed-Integer Projections for Automated Data Correction of EMRs Improve Predictions of Sepsis among Hospitalized Patients

no code implementations21 Aug 2023 Mehak Arora, Hassan Mortagy, Nathan Dwarshius, Swati Gupta, Andre L. Holder, Rishikesan Kamaleswaran

In particular, by using high-dimensional mixed-integer programs that capture physiological and biological constraints on patient vitals and lab values, we can harness the power of mathematical "projections" for the EMR data to correct patient data.

Reusing Combinatorial Structure: Faster Iterative Projections over Submodular Base Polytopes

1 code implementation NeurIPS 2021 Jai Moondra, Hassan Mortagy, Swati Gupta

Motivated by this trade-off in runtime v/s convergence rates, we consider iterative projections of close-by points over widely-prevalent submodular base polytopes $B(f)$.

Walking in the Shadow: A New Perspective on Descent Directions for Constrained Minimization

1 code implementation NeurIPS 2020 Hassan Mortagy, Swati Gupta, Sebastian Pokutta

We combine these insights into a novel Shadow-CG method that uses FW and shadow steps, while enjoying linear convergence, with a rate that depends on the number of breakpoints in its projection curve, rather than the pyramidal width.

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