Zajednički sastanci Seminara za računarstvo i primenjenu matematiku i Odeljenja za matematiku, 12. i 26. avgust 2016.

Detaljnije: U toku avgusta biće održana dva zajednička sastanka Seminara za računarstvo i primenjenu matematiku i Odeljenja za matematiku.

Prvi sastanak biće održan u petak, 12. avgusta 2016. u sali 301f Matematičkog instituta SANU sa početkom u 14:15 časova.

Predavač: Snežana Minić, Simon Fraser University, Vancouver

Naslov predavanja: A NEW VARIATION OF THE TRAVELING SALESMAN PROBLEM: SATELLITE IMAGE ACQUISITION SCHEDULING OF DEEP-SPACE EARTH-ORBITING OBJECTS

Apstrakt: This talk presents an image acquisition scheduling problem for a Canadian surveillance-of-space satellite named Sapphire that takes images of deep space Earthorbiting objects. For a set of resident space objects (RSOs) that needs to be imaged within the time horizon of one day, the Sapphire image acquisition scheduling (SIAS) problem is to find a schedule that maximizes the Figure of Merit of all the scheduled RSO images. To address the problem, we propose an effective GRASP heuristic that alternates between a randomized greedy constructive procedure and a local search procedure.

Drugi sastanak biće održan u petak, 26. avgusta 2016. u sali 301f Matematičkog instituta SANU sa početkom u 14:00 časova.

Predavač: Zoran Obradović, Temple University, Philadelphia, USA

Naslov predavanja: DISEASE TYPES DISCOVERY AND HEALTHCARE QUALITY MODELING FROM A LARGE DATABASE OF INPATIENT RECORDS

Apstrakt: We map a very large EHR database of Electronic Health Records containing millions of inpatient cases into a low dimensional space where diseases with similar phenotypes have similar representation. This embedding allows for an effective segmentation of diseases into more homogeneous categories, an important task of discovering disease types for precision medicine. Our results show evidence that such representations have phenotypes of higher quality and also provide benefit when predicting hospitalization length of stay, total incurred charges, and mortality rates.

Results reported in this talk are in press at Gligorijević, Đ., Stojanović, J., Obradović, Z., "Discovering Disease Phenotypes from a Large Database of Inpatient Records: A Sepsis Study", Methods, in press, Stojanović, J., Gligorijević, Đ., Radosavljević, V., Đuric, N., Grbović, M., Obradović, Z., "Modeling Healthcare Quality via Compact Representations of Electronic Health Records", IEEE/ACM Transactions on Computational Biology and Bioinformatics, in press.



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