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News
July 9, 2026
HSE Economists Use Search Queries to Forecast Birth Rates
Researchers from the HSE Faculty of Economic Sciences have shown that the accuracy of birth rate forecasts for Russia can be improved by almost 50% by incorporating the dynamics of online search queries related to pregnancy and childbirth into forecasting models. In the best-performing models, the forecasting error fell from 4.6% to 3.2%. The findings have been published in Populations and Economics.
July 8, 2026
HSE Researchers Discover Who Eats Out in Russia-And Why
Around one-third of Russians (31.3%) rarely eat out or buy ready-made meals. The core group of active consumers—those who eat out or purchase prepared food almost every day or several times a week—accounts for only about 9% of the population. These are the findings of a study conducted by the HSE Institute for Social Policy. According to the researchers eating out is no longer a marker of high social status in Russia.
July 8, 2026
HSE University and RREDA Join Forces to Support 2026 Renewable Energy of the Planet Competition
HSE University and the Russia Renewable Energy Development Association (RREDA) have signed a partnership and information cooperation agreement to support Renewable Energy of the Planet—2026, a national competition with international participation for students and early-career researchers. Applications are open on the competition's website until September 20, 2026.

 

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European Chapter on Combinatorial Optimization (ECCO 2009)

Иер. : 2009.
Chapters
An Algorithm for Total Weighted Completion Time Minimization in Preemptive Equal Job Length With Release Dates on a Single Machine
Kvaratskhelia A., Lazarev A. A., , in: European Chapter on Combinatorial Optimization (ECCO 2009).: Jerusalem: [б.и.], 2009. P. 13–14.
We consider the minimizing total weighted completion time in preemptive equal job length scheduling problem on a single machine with release dates. We propose a polynomial time algorithm that solves the problem. Before this paper, the problem is known to be open. ...
Added: March 4, 2013
An Approximate Method for Solving Scheduling Problems
Lazarev A. A., , in: European Chapter on Combinatorial Optimization (ECCO 2009).: Jerusalem: [б.и.], 2009. P. 23–23.
We consider the scheduling problems α|β|Fmax: A set of n jobs J1,…,Jn with release dates r1,…,rn, processing times p1,…,pn and due dates d1,…,dn has to be scheduled on a single or many machines. The job preemption is not allowed. The goal is to find aschedule that minimizes the regular function F(C1,…,Cn), that Cj is the ...
Added: March 4, 2013
An Approximation Method for Estimating Optimal Value of Minimizing Scheduling Problems
Lazarev A. A., , in: European Chapter on Combinatorial Optimization (ECCO 2009).: Jerusalem: [б.и.], 2009. P. 13–13.
In this paper, for $NP$-hardness single and multi-machine scheduling problems with the criterion of minimization maximum lateness the metrics $\rho$ has been used. We consider some approaches finding of the approximate solution for the problems. The idea of approaches consists in construction to a initial instance $A$ such instance $B$ (with the same number of ...
Added: March 4, 2013
Language: English
European Chapter on Combinatorial Optimization (ECCO 2009)
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