This paper provides an extensive and thorough overview of the models and techniques
utilized in the first and second stages of the typical information retrieval processing chain …

Implicit recommendation refers to the users' feedback on items derived from their
interactions with items, ie, clicks, and purchases. The methods in the implicit …

Micro-video online platforms have become prevalent in recent years, necessitating effective
recommender systems to help identify users' preferences. Previous works have made …

Data protection legislation like the European Union's General Data Protection Regulation
(GDPR) establishes the right to be forgotten: a user (client) can request contributions made …

Relevance search over knowledge graphs seeks top-ranked answer entities that are most
relevant to a query entity. Since the semantics of relevance varies with the user need and its …

Deep neural networks (DNNs) demonstrates significant advantages in improving ranking
performance in retrieval tasks. Driven by the recent developments in optimization and …