Speech Acts: An Essay in the Philosophy of Language

Summary

The book develops a systematic theory of speech acts, building on Austin's work, with the claim that speaking a language is a rule-governed form of behaviour. It distinguishes the act of uttering words, the propositional act (referring and predicating) and the illocutionary act (promising, asserting, requesting, thanking, warning…). The core of the book analyses the conditions under which an illocutionary act succeeds, such as preparatory, sincerity and essential conditions, using promising as the main worked example. It also introduces the idea of illocutionary force indicating devices, linguistic signals such as mood, performative verbs or particular words that mark which act is being performed. The framework became a foundation of pragmatics and of later computational work on dialogue acts.

How Mova uses it

• prag/data/cues.tsv — the cue list's markers of illocutionary force (thanks, apologies, greetings, promises, warnings, suggestions, offers, yes/no) are compiled with this book (and Searle 1975 on indirect speech acts) as the theoretical basis; the list itself is Mova's own.
• prag/src/feats.rs — the cues become the cue feature slot, alongside syntactic slots from the UD tree (mood, inversion, wh-word, modal, subject person…).
• prag/src/model.rs — three classifiers (averaged perceptron, IGTree, k-NN) predict sentence-level fields including the speech act (act) and indirectness (indirect).

Effectiveness in Mova

The cue list is not ablated, so the contribution of this source is not measured separately. The fields it informs, from the prag README, five-fold cross-validation on 2,986 sentences, accuracy / macro-F1 %: act — baseline 28.9 / 3.9, perceptron 70.3 / 38.0, IGTree 64.1 / 23.9, k-NN 68.1 / 26.0; indirect — baseline 92.7 / 48.1, perceptron 92.3 / 59.9.

👨‍🔬💥

Topics: Speech act theory

Cite

The paper itself, not this card. BibTeX from the library's record of the work. DOI 10.1017/cbo9781139173438

@inproceedings{searle1969speech,
  title = {{Speech Acts: An Essay in the Philosophy of Language}},
  author = {Searle, John R.},
  booktitle = {Cambridge University Press (book)},
  year = {1969},
  doi = {10.1017/cbo9781139173438},
  url = {https://doi.org/10.1017/cbo9781139173438}
}

This page in Markdown → https://md.mova.elamur.ai/free/en/docs/papers/searle-1969-speech-acts/