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Comparative Sentiment Analysis
Subfield of NLP that evaluates and compares opinions, emotions, or attitudes expressed toward multiple entities within the same document or corpus.
Target Entity Extraction
Process of identifying and isolating specific products, services, or brands that are the subject of comparative opinions in a text.
Comparative Pair
Set of two distinct entities directly related for the evaluation of their respective attributes, forming the basis of comparative analysis.
Relational Polarity
Measurement of the orientation (positive, negative, neutral) of an opinion specifically in the context of comparing two entities.
Comparison Matrix
Data structure that organizes sentiment scores for each pair of entities and attributes, allowing for a synthetic visualization of preferences.
Comparative Dependency
Syntactic relationship that links one entity to another via logical connectors (e.g., 'better than', 'less...than') to express a preference.
Comparative Aspect Analysis
Advanced technique that dissociates and compares sentiments expressed on different specific attributes or characteristics of each entity.
Pair Classification Model
Machine learning algorithm trained to predict the preference relationship (A > B, B > A, A = B) between two entities mentioned in a text.
Comparative Coreference Resolution
Task of linking pronouns or anaphoric expressions to the correct entities in a complex comparison structure.
Aggregated Preference Score
Metric calculated by consolidating the polarities of multiple comparative mentions to determine a global preference hierarchy.
Comparative Connector
Word or phrase (e.g., 'compared to', 'on the other hand', 'whereas') that explicitly introduces a comparison relationship between two propositions or entities.
Implicit Preference Inference
Ability of a system to infer a preference relationship even in the absence of explicit comparative markers, based on semantic context.
Multi-Entity Sentiment Analysis
Extension of sentiment analysis that simultaneously handles opinions about multiple distinct entities within a single textual unit.
Comparative Relations Graph
Formal representation where nodes are entities and directed, weighted edges symbolize preference relationships and their intensity.
Entity Disambiguation in Comparative Context
Process of clarifying the identity of an entity when multiple homonyms exist, relying on elements of the comparison itself.
Comparative Quantification
Extraction and interpretation of comparison degrees (e.g., 'slightly better', 'much faster') to nuance the intensity of preference.
Inter-sentence Sentiment Analysis
Technique that links and analyzes sentiments expressed about different entities mentioned in adjacent or nearby sentences.