Create: 2022-07-16 Update: 2024-05-16 17:29:57

На канале у Ромы вышло новое видео с разбором текстовых факторов ранжирования яндекса.

Напомню, что цель этого обучающего проекта - простыми словами объяснить как думает поисковая система.

Краткое содержание ролика:
- Классические текстовые факторы, tf/idf
- Факторы основанные на bm25
- Факторы BCLM

Коротко данные группы факторов можно описать так:
TF/IDF - отвечает за редкость слов запроса в индексе поисковой системы и частоту встречаемости
BM25 - за контрастность частотностей слов в многословных запросах
BCLM - кучность слов запроса в тексте

Совсем коротко так:
TF/IDF - редкость
BM25 - контрастность
BCLM - кучность

А все эти факторы вместе дают приемлимое качество поиска по длинным НЧ запросам, по которым поисковикам традиционно приходится опираться на текстовые факторы, ведь статистики по ПФ по таким запросам не накоплено.

Ну а в следующую субботу выйдет 2 часть видео про оставшиеся группы текстовых факторов

stavsky

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938 viewsJul 16, 2022 at 15:28

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На канале у Ромы вышло новое видео с разбором текстовых факторов ранжирования яндекса.

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