William C. Mann’s research while affiliated with USC Institute for Creative Technologies and other places

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Publications (19)


Antithesis: a study in clause combining and discourse structure
  • Chapter

April 2011

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8 Reads

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William C. Mann

This second volume in honour of Michael Halliday contains three sections: The Design of Language, Text and Discourse and Exploring Language as Social Semiotic, and concludes with a recent interview conducted by Paul Thibault in which Halliday provides further insights in his theory of language. The essential design features of language are semantic, lexico-grammatical and phonological. Text for Halliday is a semantic unit expressed by the lexico-grammatical and phonological patterns in language. The papers in the first section study aspects of these three strata of language and the relation between them. The second section deals with units higher than the clause complex and the papers there attempt to integrate the analysis of the lexico-grammatical and phonological systems into higher level discourse units. The papers in the third section develop the notion of language as social semiotic which is central to Haliday’s model of language.





Table 1 : Relation names in RST
Table 3 : Systemic Metafunction and Locus of Effect of RST Relations
Functions of Language in Two Frameworks
  • Article
  • Full-text available

June 1990

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14,034 Reads

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38 Citations

WORD

This paper is the first in a pair of papers that compare two particular accounts: Rhetorical Structure Theory and Systemic linguistics. Rhetorical Structure Theory, Initially formulated In 1983, describes texts in terms of functionally-defined relations that hold between parts. Systemic Linguistics Is a much more comprehensive view of language initiated In the early 1960s. Where the two approaches are comparable, systemic linguistics describe text in terms of categories of processes which the texts perform. The paper focus on correlating the relations used In rhetorical structure theory with the categories of function found in systemic linguistics. The correlation employs descriptions of speakers' Intentions in an essential way. A surprisingly strong correlation results. Functional Linguistics, Rhetorical Structure Theory, Systemic-Functional Linguistics, Discourse Relations, Discourse Function.

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Rhetorical Structure Theory and Text Analysis

November 1989

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10,374 Reads

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472 Citations

Recent research on text generation has shown that there is a need for stronger linguistic theories that tell in detail how texts communicate. The prevailing theories are very difficult to compare, and it is also very difficult to see how they might be combined into stronger theories. To make comparison and combination a bit more approachable, we (Mann and Thompson) have created a book which is designed to encourage comparison. A dozen different authors or teams, all experienced in discourse research, are given exactly the same text to analyze. The text is an appeal for money by a lobbying organization in Washington, D.D. It informs, stimulates and manipulates the reader in a fascinating way. The joint analysis is far more insightful than any one team's analysis alone. This paper is our contribution to the book. Rhetorical Structure Theory (RST), the focus of this paper, is a way to account for the functional potential of text, its capacity to achieve the purposes of speakers and produce effects in hearers. It also shows a way to distinguish coherent texts from incoherent ones, and identifies consequences of text structure. Keywords: Artificial intelligence; Coherence; Computational linguistics; Discourse analysis; Linguistics; Natural language; Rhetorical structure theory; Text structure.


Rethorical Structure Theory: Toward a functional theory of text organization

January 1988

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8,450 Reads

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3,736 Citations

Text - Interdisciplinary Journal for the Study of Discourse

Rhetorical Structure Theory is a descriptive theory of a major aspect of the organization of natural text. It is a linguistically useful method for describing natural texts, characterizing their structure primarily in terms of relations that hold between parts of the text. This paper establishes a new definitional foundation for RST. The paper also examines three claims of RST: the predominance of nucleus/satellite structural patterns, the functional basis of hierarchy, and the communicative role of text structure.


Antithesis: A Study in Clause Combining and Discourse Structure

April 1987

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140 Reads

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41 Citations

Al Research in text generation needs a strong linguistically justified descriptive theory as a basis for creating methods by which programs can write multiparagraph texts. This paper sketches Rhetorical Structure Theory, which has been designed to support text generation, and then applies RST to describing a particular class of discourse constructs. There is no concensus as to the status of clause combining relations relative to larger texts. This paper demonstrates a clause combining relation that is also found as part of larger text structures, and shows how this fact can be used to explain cases in which contrastive clause combining appears between clauses that are not in fact in contrast. The appropriate generalization is that the relations of clause combining and the relations of general text structure are the same. Use of this generalization should make Al text planning and text generation significantly easier.




Citations (16)


... To gain deeper insight into the linguistic structure of these rubrics, we apply hierarchical discourse parsing and analyze the resulting discourse subgraphs-referred to as "discourse motifs"-which capture pragmatic discourse relations between textual units ranging from phrases to full paragraphs. This analysis builds on the method introduced by Kim et al. [2024], who used Rhetorical Structure Theory (RST) [Mann and Thompson, 1987] to study discourse patterns in LLM-and human-generated texts. In our setting, we compute the distribution of discourse motifs across three versions of the rubric: the initial version, the version after a single MPO refinement, and the final version at the end of training. ...

Reference:

Toward Evaluative Thinking: Meta Policy Optimization with Evolving Reward Models
Rhetorical Structure Theory: A Theory of Text Organization

... The objective is to describe how the architecture of the advertising textual genre is organized, in interface with the proverb genre, and the relationships that emerge between their parts. The qualitative-interpretative analysis is based on the Rhetorical Structure Theory (RST) by Mann & Thompson (1983, 1985 and ...

Relational Propositions in Discourse
  • Citing Article
  • January 1986

Discourse Processes

... Los conectores discursivos forman una categoría funcional de elementos léxicos que marcan relaciones discursivas, como la explicación o el contraste entre unidades discursivas (Halliday y Hasan, 1976;Mann y Thomson, 1992;Asher, 1993;Knott y Dale, 1994;Sanders, 1997). «Las conjunciones constituyen una clase de palabras invariables, generalmente átonas, que relacionan entre sí vocablos, grupos sintácticos u oraciones, unas veces equiparándolos y otras jerarquizándolos y haciéndolos depender unos de otros» (RAE, 2010, p. 604). ...

Relational discourse structure: a comparison of approaches to structuring text by 'contrast'
  • Citing Article
  • January 1992

... In the "classical" RST (Mann and Thompson 1987;Mann, Matthiessen and Thompson 1992;Matthiessen and Thompson 1988 and later work), EDUs are considered to be clauses with the exception of clausal subjects and objects, other clausal complements and restrictive relative clauses. In the "modern" RST (Carlson et al. 2003), EDUs are clauses -including relative clauses -as well as attribution clauses and various phrases with strong discourse cues, such as because of, in spite of, according to. ...

Mann, William C., Christian M.I.M. Matthiessen & Sandra A. Thompson. 1992. Rhetorical Structure Theory and Text Analysis. USC/ISI Report. Also in William C. Mann & Sandra A. Thompson (eds.), Discourse Description: Diverse Linguistic Analyses of a Fund Raising Text. Amsterdam: Benjamins. 39-78.
  • Citing Chapter
  • January 1992

... As the first layer of analysis, Rhetorical Structure Theory (e.g., Mann and Taboada, 2021;Mann, Matthiessen, and Thompson, 1992;Mann and Thompson, 1988) is adopted as 'a descriptive linguistic approach to a range of phenomena in the organisation of discourse' (Taboada and Mann, 2006: 424). The basic premise of RST is that a text is hierarchically organised by connecting parts of the text as a coherent whole instead of strings of sequiturs. ...

Discourse Description: Diverse Linguistic Analyses of a Fund-Raising Text
  • Citing Article
  • September 1993

Language

... There are many micro-discourse structure theories, including rhetorical structure theory, Pennsylvania discourse tree bank theory, sentence group theory, complex sentence theory, discourse structure theory based on connection dependency trees, etc. Among them, rhetorical structure theory (RST) [33] was founded by Mann and Thompson in 1986 and defined 23 structural relationships. When two or more discourse units are connected through rhetorical relationships, they constitute a structure tree. ...

Relation propositions in discourse

Discourse Processes

... On the other hand, recognizing textual entailment requires automated systems to identify when two spans of text share a common meaning; (ix) implicature (also called conversational implicature) is a pragmatic concept introduced by British philosopher (Grice 1975), which showed how meaning expressed by the speaker (speaker meaning) in conversation, not directly encoded in the words, maybe inferred (recognized) by the hearer; (x) discourse coherence, as defined by Jurafsky (2020), consists of a coherent structured group of sentences, in which the word "coherence" is used to refer to the relationship between sentences that makes real discourses different than just random assemblages of sentences. Furthermore, according to Mann et al. (1992), theories of discourse coherence, which were broadly defined as "the sense of overall unity of a text," are often used as descriptive tools in the analysis of coherence. ...

Rhetorical Structure Theory and Text Analysis

... As we demonstrate, that leads to LLMs encoding representations of both the linguistic properties critical to conveying meaning in gesture performances, as well as the relation of those phenomena to actual gestures. Furthermore, we explore and evaluate LLMs' ability to represent rheme and theme [11,31], metaphor [7,13], image schemas [6] and rhetorical structures [29]. GPT4's ability is assessed in the context of crafting a specific individual, a skilled presenter from a labor organization. ...

Rhetorical Structure Theory: Description and Construction of Text Structures
  • Citing Article
  • October 1986

... An early attempt at exploring the usefulness of RST in persuasive writing was undertaken by Mann and Matthiessen (1991), who noted that the primary goal of a written text functioned as the nucleus and the supplementary material that supported this goal were contained in the satellites. Later, Azar (1999) also confirmed that many RST relations were related to argumentation including evidence, justification, antithesis, and concessions. ...

Functions of Language in Two Frameworks

WORD