The Central Entity represents the main subject of a query, document, or cluster of documents. It is the entity most semantically relevant and most strongly connected to other entities. In search engines, identifying the central entity allows the system to ...

Onomastics is the study of names — their origins, history, forms, and cultural usage. It covers personal names (anthroponymy), place names (toponymy), and naming in literature or society. In modern contexts, onomastics also supports linguistics, genealogy, branding, and computational tasks ...

KELM is a pipeline and corpus developed by Google Research that enhances language models with structured knowledge. It doesn’t replace models like BERT or T5 — instead, it improves them by feeding in knowledge graph-derived sentences. Source: Triples from Wikidata. ...

In linguistics, semantic structure refers to the organized system of meanings encoded in language. It defines how: Words relate to each other (synonymy, antonymy, hyponymy) Sentences build complex interpretations from parts Entities, attributes, and roles interact to create meaning This ...

A Discordant Query is a search input that carries conflicting signals about user intent. Unlike a canonical query (which neatly expresses a single goal), discordant queries blur boundaries: Internal conflict: Terms inside the query point to different categories. Example: “cheap ...

A Query Path is the ordered sequence of queries and actions a user takes while pursuing a search task. It spans from the initial query through reformulations, refinements, and clicks, to the termination point where the user either succeeds or ...

A Correlative Query is one where terms or sub-queries are related through statistical, semantic, or task-based association. These queries are not necessarily synonyms or fixed phrases, but interconnected ideas that reveal deeper intent. For example: Single query correlation: “ranking signals ...

Attribute relevance is the degree to which an attribute (a property of an entity) improves meaning, retrieval accuracy, and user satisfaction. It identifies which attributes matter most in search, SEO, or knowledge graphs, ensuring that entities are represented with the ...

A Sequential Query is any query that forms part of a series of related queries within a session or across sessions. Unlike one-off represented queries, sequential queries carry dependency: their meaning or scope often relies on earlier queries. For example: ...

The skip-gram model is a predictive approach for learning word embeddings. Given a center word, the model tries to predict its context words within a fixed window. If the center word is “SEO” and the context window includes words like ...