The broad scope of my research area is Information Systems. An information system is a computerized system that stores and processes information. For example the system used by the bank clerk to create and manage bank accounts or the system used by the doctor to update her patients' records.
More specifically I am researching in the area of Management Information Systems (MIS), that is, information systems that are used by organizations and are intended to support the organization's operational, managerial and strategic activities, for example, a system that supports managers in their decision making process by presenting them with various business reports.
My research develops and applies data science, machine learning, deep learning methods in different context such as: e-commerce, medicine, and agriculture. For example:
I apply different data science, web-mining, machine learning, deep learning methods to better understand consumers' online behavior. This includes:
characterizing the cognitive stage of a consumer in the purchasing funnel
comparing the different paths to purchase of mobile vs. desktop consumers
developing methods for comparing products and for product recommendations
conversion prediction
analyzing the effect of external events on the behavior of consumer in online markets
I apply different data science, machine learning, and deep learning methods to provide decision support for physicians. This includes:
Early detection of Alzheimer's disease (in Collaboration with the Beilinson hospital)
response to nutrition in ICU patients (in collaboration with the ICU in Beilinson hospital)
Predicting clinical outcomes in critically ill patients based on feeding intolerance (ICU, Beilinson)
Breast cancer diagnosis using breast MRI (In collaboration with Sheba medical center)
Fetus stress prediction using CTG.
Developing an information system is a complex task. It involves different activities and different people: managers, engineers, programmers, users - who have different needs, goals and also who speak "different languages".
The goal of this research is to develop special languages and methods that will improve the communication between the various stakeholders and thus improve the development of information systems (development will be faster, cheaper and achieve the required goals). Usually these languages have graphical notations (since showing things graphically usually improves understanding - as the saying goes: "a picture is worth a thousand words").
This research develops a language for designing and managing information security in organizations. This language helps identifying security requirements, risks and threats and helps developing systems that are more secure.