Research into persuasion within computational systems shows how belief-level interventions can modify downstream agent behavior during long-horizon tasks such as web research and coding. When belief states are prefilled at task initiation, agents conduct on average 26.9 percent fewer searches and visit 16.9 percent fewer unique sources than neutral agents, whereas on-the-fly persuasion produces only weak and inconsistent effects. These findings extend earlier argumentation frameworks that treat persuasion explicitly as a dynamics modifier interacting with attack and defence relations. Such frameworks enrich Dung-style admissibility concepts through computation tree logic encodings, enabling importation of established logical results into dynamic argumentation models. Parallel work on persuasive technologies for sustainable urban mobility systematically classifies strategies from prototype systems and pilot studies, underscoring the value of personalization to user characteristics and context-aware tailoring to increase sustainable transport choices. Separate historical examination of dynamical systems theory clarifies that spectral isomorphism is strictly weaker than spatial isomorphism, as first demonstrated by von Neumann in a 1941 letter establishing that mixed-spectrum ergodic systems need not be spatially isomorphic. Together these lines of work trace the movement of persuasion concepts from static structures into interactive, belief-sensitive, and agentic settings.
Aristotle defines rhetoric as the faculty of observing in any given case the available means of persuasion, treating it as a situational capacity akin to dialectic and a blend of logic with ethical politics rather than a fixed set of techniques. He holds that truth and justice prove naturally stronger than their opposites, so rhetorical competence becomes necessary to prevent just positions from losing to unscrupulous opponents and to allow clear examination of facts along with refutation of unfair claims. The three technical means of persuasion generated by the speech are logos, which proceeds through enthymemes and examples adapted to probable premises and audience knowledge; ethos, achieved by displaying the speaker’s practical wisdom, virtue, and goodwill directly in the discourse; and pathos, produced by placing the audience in targeted emotional states after analyzing each emotion’s objects and triggers. Effective rhetoric integrates all three so that the argument stands sound, the speaker appears credible, and listeners remain in the appropriate frame of mind. The supplied Perplexity extraction supplies these principles without reference to any of the listed arXiv papers, which address unrelated topics in mathematical argumentation or physics.
Aristotle defined persuasion through three modes where ethos establishes the speaker as worthy of credence by demonstrating competence, moral character, and shared values with the audience, thereby building trust during the speech itself rather than relying solely on prior reputation. Pathos places listeners into targeted emotional states such as fear, pity, or hope that shape judgment while also invoking identity-based values like justice or honor through vivid narratives that render claims personally salient. Logos advances conclusions via enthymemes, examples, coherent organization, and supporting evidence including facts and analogies that allow accepted premises to yield the desired outcome. These distinctions inform annotated corpora of online discussions on polarizing topics, enabling quantitative and qualitative study of ethos and pathos patterns across platforms and media. In agentic systems, prefilled belief states reduce searches by 26.9 percent and unique sources by 16.9 percent compared with neutral conditions, illustrating how prior persuasion propagates into downstream task execution. Professional advisors further adapt such approaches to individual traits and states rather than applying uniform methods, underscoring the limits of non-personalized strategies in contexts like home security recommendations.
Classical rhetoric teaches that arguments are invented through stasis theory, topics of invention known as topoi or loci, and distinctions between artificial and inartificial proofs. Stasis theory uses systematic questions to locate the precise point in dispute so that arguments can be framed correctly, with four main types that include conjectural questions about whether an act occurred and who performed it, definitional questions about the kind of thing involved and its parts, qualitative questions about its seriousness or value as good or bad or just or unjust, and translative questions about whether the proper forum or procedure applies. These questions narrow broad issues into specific disputes and decide which lines of argument are relevant. Topics of invention function as standard places to look for arguments through categories of thought that generate reasoning, particularly the common topics usable in any subject. These encompass definition by clarifying genus and species along with essential properties, division of wholes into parts, comparison through similarity difference and degree to produce analogies or greater and lesser arguments, relationships such as cause and effect antecedent and consequence contraries and contradictions, circumstance regarding what is possible or impossible and past or future facts to assess feasibility and plausibility, and testimony drawn from authorities witnesses and statistics. This approach supports systematic discovery of relevant arguments by exploring these established categories.
Classical rhetoric structures persuasive discourse through arrangement, known as dispositio or taxis, the process of ordering speech parts so ethos, logos, and pathos unfold in a sequence that moves the audience most effectively. This canon answers how material should be sequenced for maximum clarity, credibility, and persuasion, and classical theorists treat it as distinct from invention of arguments and their stylistic expression. Roman and later handbooks drawing on Aristotle and developed by Cicero and Quintilian divide a full oration into six parts. The exordium renders the audience well-disposed, attentive, and receptive, relying primarily on ethos to establish speaker credibility and a favorable attitude through attention-getting, subject statement, and positioning as reasonable. The narratio supplies a brief, clear, and plausible account of the situation or case, advancing logos while framing facts so later arguments appear natural. The partitio outlines issues at stake and discourse organization, clarifying the thesis and main lines of argument to create expectations and ease following. The confirmatio presents main arguments and evidence, dominated by logos through deductive and inductive forms, examples, signs, and enthymemes as the argumentative core. The refutatio addresses and undermines opposing arguments, employing logos for counter-reasoning supported by ethos of fairness, often following confirmation but movable depending on case needs. The peroratio sums up, reinforces the position, and moves the audience to judgment or action, emphasizing pathos with proof recaps and final value or urgency appeals to leave the most salient impression through emotional and mnemonic power.
Rhetorical figures encompassing schemes of arrangement and sound alongside tropes that shift meaning play a central role in persuasive communication and appear across domains including hate speech and propaganda. A counterfactual LLM framework disentangles rhetorical style from substantive content by generating multiple persona-based rewrites of the same material then aggregating pairwise judgments through a Bradley-Terry model; applied to 8485 ICLR papers from 2017-2025 this produced over 250000 counterfactual texts and showed visionary framing predicts citations and media attention after controlling for peer review while rhetorical strength rose sharply after 2023. Systematic surveys of computational detection for lesser-known figures highlight persistent obstacles of dataset scarcity language coverage gaps and dependence on rule-based methods rather than learned models. Complementary work restructures the German Rhetorical ontology GRhOOT into a web application called Find your Figure that incorporates retrieval-augmented generation to support consistent annotation of figures beyond metaphor sarcasm and irony thereby addressing the shortage of qualified annotators and expanding resources for downstream tasks such as argument mining and sentiment analysis.
Classical rhetoric primarily employed visual-spatial mnemonic systems above all the method of loci also known as the art of memory which was supplemented by structured repetition and verbal devices such as ordering chunking and associative images. Ancient sources trace the technique to the poet Simonides of Ceos who reconstructed the seating of banquet guests after a building collapse by visualizing where each had sat leading to the idea of associating memories with places. The core principle involves the orator imagining a familiar architectural space such as a house temple garden or public building and fixing its parts in a stable order. In rhetorical handbooks like the Rhetorica ad Herennium the procedure requires creating a series of backgrounds or places memorized in fixed order forming striking images symbolizing the points to remember placing these images mentally at the selected loci in sequence and during delivery mentally walking through the building to encounter each image and recall the corresponding argument. This system is often called architectural mnemonics or the memory palace. Classical rhetorical mnemonics emphasized visual images that are vivid emotionally charged or unusual to make them memorable often exaggerated strange or emotionally striking so that each would reliably evoke the associated idea or argument. The loci system is fundamentally ordering information spatially so that the rigid order of places allows detection of omissions or displacements because each place expects a specific image. Long sequences of material were broken into smaller manageable groups through chunking assigning one main point topic or short list to each locus rather than memorizing the entire speech as one continuous block. Association linked abstract arguments with concrete images and legal or forensic details with iconic tokens so that recalling one element would trigger the rest through a chain of recollection.
In classical rhetoric delivery functions as the final canon of oratory by regulating voice and body to shape how listeners receive a message emotionally and physically. Quintilian identifies voice and gesture as its two essential components noting that voice reaches the ear while gesture reaches the eye. Voice is managed through controlled pitch volume rhythm pace and tone so that expression aligns with emotion and emphasis while remaining adapted to subject and audience rather than strained or mechanical. Gesture incorporates the body as an active persuasive instrument with hand movements and other actions required to appear spontaneous sincere and matched to the speech content instead of rehearsed artificially. Cicero reinforces this by defining delivery as the regulation of voice and body in a manner fitting the subject and language of the speech. Contemporary research supplies empirical grounding for these principles through large annotated video datasets that capture time-aligned facial expressions body language and text to train models generating synchronized nonverbal cues. Dyadic interaction studies apply relevant interval selection followed by Granger causality on facial expression time series to detect transient mutual influence patterns between speakers. Presentation support systems further demonstrate that on-the-fly modulation of speech pace integrated prompts and remote visual control improve synchronization of verbal nonverbal and visual channels without added cognitive load.
Cicero systematized rhetoric in De inventione by defining the five canons as invention for discovering arguments, arrangement for structuring them, style through choices among grand, middle, or plain diction, memory techniques for retention, and delivery covering voice and gesture. He transmitted Aristotle’s three genres of forensic, deliberative, and epideictic speech, making these categories standard in later teaching. In De oratore he advanced the ideal of the perfect orator as a philosopher-statesman who unites wisdom and eloquence, demanding firm general knowledge across many subjects so that the speaker could address any topic with dignified restraint. This model cast the orator as moral and political guide shaping public opinion for the republic’s welfare, solving the danger of rhetoric detached from ethical substance. De inventione supplied an early school-boy compendium of divisions and procedures closely related to the Rhetorica ad Herennium. De oratore, presented as a Platonic dialogue, moved beyond listing rules to debate the necessity of philosophy, law, and history, systematically treating invention, the three speech types, the five canons, and the six parts of a speech while offering guidance on introductions, refutation, and audience analysis. These treatises became comprehensive foundational textbooks used for centuries.
Quintilian defines the ideal orator as a good man skilled in speaking whose formation requires lifelong integration of moral character, intellectual discipline, and rhetorical technique beginning in infancy. The program rejects narrow instruction in verbal tricks and instead demands that the speaker possess genuine philosophical insight so that eloquence serves justice and the common good rather than personal advantage. Moral formation stands as the indispensable foundation; without it no one attains sufficient command even of speech because the orator must internalize precepts of philosophy and reason to desire what is right. Training therefore starts at birth with careful selection of nurses who speak correctly, educated parents whose culture shapes progress, and companions or pedagogues capable of immediate correction of linguistic faults. Greek is introduced first because Latin will be acquired naturally, and every element of the child’s environment is arranged to prevent bad habits from taking root. The resulting speaker acquires both the capacity and the settled will to employ rhetoric on behalf of truth and sound government, answering Plato’s critique by ensuring that technical mastery remains inseparable from ethical commitment throughout the entire course of education.
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