Public data of social networks reflects various aspects of human activity at the individual level. The data geographical mapping in general enables us to analyze the demographic, social and psychological pattern of the population activity in different cities and regions. To collect such data, we develop and use special software tools -... more

Informal groups’ visibility in social networks is conditioned upon the peculiarities of the communication structure and relevant information distribution policy. To analyze the successful experience of domain-oriented communities having significant influence in the information space and to define opinion makers and the ways of information... more

Stenting coronary arteries is one of the safest and most efficient procedures for restoring the normal lumen diameter in atherosclerotic arterial segments. A stent is a metal mesh which is deployed in the affected arterial segment to open it up and keep it from narrowing again. After deployment the stent naturally becomes covered by smooth... more

The human cardiovascular system is cardinal for sustaining life: it supplies living tissue with oxygen and nutrients, and also has signalling, metabolic, and adaptive functions. Abnormalities in cardiovascular function are the main reason for many age-related diseases, the most typical of them being ischemic heart disease. The modern... more

The use of High-Performance Computing methods and technologies can ultimately facilitate the investigation of dynamical processes in very large (in order of billion vertexes) networks. In particular, the generation of a large network with given properties, as well as the modeling of interactions between vertices, can be done in... more

Financial crises are caused by numerous factors, which impedes the study of critical phenomena in banking networks. The shock initiated by a single institute bankruptcy can result in avalanches or absorption. Systemic risk in banking ecosystems also depends on the network topology and system’s adaptability.

Banking networks of... more

Today there is a range of metrics used to assess the economic life of the city, yet some of its spheres remain hidden from researchers’ eyes. In the literature they are frequently referred to as parts of the shadow or informal economy. Among the examples of activities that constitute the informal economy are street vending, uncertified... more

The metro may be considered to be the structural backbone of most cities that have it. The frequency and patterns of its usage indirectly affect the various social and economic processes.

Here in the lab, we model the passenger flows based on the influence of factors that determine the intra-urban mobility of city dwellers and the... more

The variability in population density in large cities during the day does not always lend itself to straightforward monitoring and control. This is particularly true for public spaces attracting tourists (embankments, parks, pedestrian zones etc.) and those not linked to professional or consumer activity of the city residents.

We can... more

In spite of the fact that shipping is very safe, disasters are still taking place when a ship’s crew and/or passengers have to abandon the vessel. Search and rescue operations are complex and have to take into account currents, weather, and sea surface conditions.

We simulate human body motion induced by wind and waves. To simulate... more

Carrier landing in high seas is a complicated task: deck oscillation amplitude could be up to several meters and a single inaccurate pilot reaction could lead to an aircraft crash. It is necessary to create training programs that take into account complex wave-vessel interaction in real-time using a hydrodynamic approach.

We simulate... more

The evolution of cloud computing affects various aspects of the organization of high-performance computing, including the provision of seamless and efficient interaction between supercomputers with different architecture, Big Data sources and systems of visualization and interpretation. To meet such goals, second-generation cloud... more

Storm surge is a common hazard for many coastal cities worldwide. Since Saint Petersburg, since it was founded in 1703, it has suffered from more than 300 hundreds of floods (i.e. when the water level in the estuary of the Neva River has exceeded 160 cm). Floods in Saint Petersburg are caused by deep cyclones that cross the Baltic Sea along... more

Critical phenomena, spontaneously arising or intentionally initiated in the crowd during mass events, can cause mass panic. If the surrounding area and escape routes are not prepared in advance, uncontrolled crowd behavior can produce crush and consequentially, causes casualties and injuries.

In our institute, we investigate the... more

HIV-infection is a virus disease with slow progression which affects the immune system. In present time the dominating way of the HIV spread is connected with the sexual transmission. The structure of sexual contacts is hard to be monitored, particularly due to ethical limitations. As a result, the investigation and the forecasting of HIV... more

Influenza is a severe virus infection which affects the people of any age and social status. The influenza propagation is caused by the contacts between the people and depends on the social activity and individual characteristics of the persons, particularly on the immunity level. These contacts occur at random (in public transport, at... more

One of the most relevant problems for public places flooded with crowds of people such as airports, railway stations, and stadiums, is the detection of different biological, chemical or radioactive contaminations and threats related to individuals who are carrying drugs or explosives. To detect such threats in advance the place has to be... more

International criminal organizations create complex, decentralized networking structures. The fight against them is extremely complicated by a significant number of hidden links and agile processes of adjustment as a response to external influences. An example is the criminal network of cannabis trafficking in the Netherlands.... more

The study of the general human anatomy is fundamental to the formation of healthcare professionals' skills. Traditional textbooks have several disadvantages related to (a) fragmented data, (b) the limits of two-dimensional perception, and (c) the impossibility of detailed elaboration (scaling) of the most important objects.

To... more