TY JOUR TI ANALYSIS OF COLLECTION METHODS AND MATHEMATICAL PROCESSING OF HETEROGENEOUS INFORMATION ON THE CONDITION OF THE NETWORK COVERAGE AREA OF A COMMUNICATIONS OPERATOR KW mobile operator KW collection of information KW information processing KW network coverage area KW integral parameters KW neural networks KW fuzzy sets KW marketing research JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Maltseva, N.. AU Sorokin, A.. AU Pham Khac Trong, .. PY 2019 IS PB Astrakhan State Technical University