DICE API Documentation/com.embabel.dice.common.filter/MentionFilter

MentionFilter

Filter for validating entity mentions during proposition extraction.

Filters can reject low-quality mentions (vague references, overly long spans, generic descriptions) before they create entities in the knowledge graph.

Example usage:

// Schema-driven validation (recommended)
val filter = SchemaValidatedMentionFilter(dataDictionary)

// Or context-aware filtering
val contextFilter = CompositeMentionFilter(listOf(
    SchemaValidatedMentionFilter(dataDictionary),
    PropositionDuplicateFilter()
))

if (filter.isValid(mention, propositionText)) {
    // Create entity from mention
}

Inheritors

PropositionDuplicateFilter

CompositeMentionFilter

ObservableMentionFilter

SchemaValidatedMentionFilter

Functions

isValid

abstract fun isValid(mention: SuggestedMention, propositionText: String): Boolean

Validates whether an entity mention should be included in entity resolution.

rejectionReason

open fun rejectionReason(mention: SuggestedMention): String?

Optional: Provides reason for rejection (useful for debugging/logging).