TY JOUR TI PROCEDURE OF ASSESSING CREDIBILITY TO THE EXPERT IN TERMS OF THE PROBLEM OF AGE CATEGORIZATION OF WEB CONTENT KW expert KW expert procedure KW expert trust coefficient KW indicator KW reputation coefficient KW feedback coefficient KW survey JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Davidyuk, V.. AU Baitumenov, A.. AU Gostyunina, V.. AU Daviduk, N.. PY 2019 IS PB Astrakhan State Technical University