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An Evaluation Dataset for Identifying Communicative Functions of Sentences in English Scholarly Papers

Paper · 2020 · Kenichi Iwatsuki, Florian Boudin and Akiko Aizawa

Summary

Writing-assistance tools for scholarly English suggest stock phrases. They typically match keywords, so typing "propose" only returns phrases containing that word. Searching by communicative function, such as announcing the paper's aim, would serve writers better, but no public annotated data exists for testing systems that detect these functions. Iwatsuki, Boudin and Aizawa build such a resource. They take labelled example expressions from Academic Phrasebank as seeds and use them to retrieve real, unedited sentences, with surrounding context, from the ACL Anthology Sentence Corpus (AASC). Several human annotators then assign function labels and mark minimal formulaic spans. Following earlier work, the authors treat the whole sentence as the unit carrying a function. They assume the function should be recoverable from a sentence embedding, so they frame evaluation as ranking sentence vectors against a target function. They compare models such as word2vec and BERT. Contextualised models trained in-domain (Beltagy et al., 2019) score best, yet every model falls well short of human performance. This suggests that functional, not just semantic, sentence representation is still an open problem.

Key points

  • The dataset contains AASC sentences from the ACL Anthology (a single discipline: computational linguistics). Each sentence is labelled with communicative functions and minimal formulaic expressions, using a label set derived from Academic Phrasebank (Morley, 2014).
  • Academic Phrasebank alone is unsuitable as ground truth for three reasons:
    • its entries are mostly sentence fragments;
    • they lack context;
    • they mix disciplines from humanities to medicine, whose rhetorical habits differ.
  • In the retrieved corpus sentences, citations are replaced by placeholder tokens (e.g. "CITE-p-20-1-18").
  • The proposed task ranks sentence representations by a given function. In-domain contextualised models win, but all models trail humans by a wide margin.
  • Paper: LREC 2020, pp. 1712–1720. Data released at github.com/Alab-NII/FECFevalDataset.

Interesting ideas

  • I1. The resource is bootstrapped from a curated list of fragmentary, templated examples (with slots like "X"), used as queries to pull authentic in-context sentences, which humans then label; this yields realistic evaluation data cheaply while keeping a principled label set.
  • I2. Function is separated from wording: different surface phrasings can perform the same rhetorical act, so queries and labels should be functions rather than keywords.
  • I3. The authors deliberately sidestep disputes about minimal span by attaching the function to the whole sentence, while still annotating the formulaic core separately.
  • I4. A representation is probed by asking whether it can rank items by a target property, and the result is compared against human ceiling performance; a large gap is itself reported as a finding.
  • I5. Genre and discipline are controlled because rhetorical conventions vary across fields, so evaluating on a mixed-domain resource would blur conclusions.

For Mova

How these ideas could serve Mova, our small open language model — its files, stages and tests:

  • I1 (learn): seed short speech-act or construction templates, harvest matching corpus sentences, and have parsers or the LLM teacher propose labels before human spot-checks, producing silver data tied to an explicit inventory.
  • I2 (frames): prag could tag sentences with a communicative-function or speech-act layer independent of lexical choice, letting "we propose" and "this paper presents" map to the same act.
  • I3 (frames): prag could assign speech acts at sentence level and record the triggering subtree from the UD tree as an explanation, keeping both robustness and traceability.
  • I4 (learn): Mova's evaluations could include human or oracle ceilings and ranking-style probes, so gains are judged against what is achievable, not only against baselines.
  • I5 (answer): keep test sets for school courses, word problems and fables separate, and report per-genre scores rather than one pooled number.

Our summary of the paper, in our own words — not its text. The work belongs to its authors; read it at the links above.

 Institutions

Cite

Cite as Kenichi Iwatsuki, Florian Boudin and Akiko Aizawa. 2020. An Evaluation Dataset for Identifying Communicative Functions of Sentences in English Scholarly Papers. Proceedings of the Twelfth Language Resources and Evaluation Conference.

The paper itself, not this page. BibTeX from the library's record of the work.

@inproceedings{iwatsuki2020evaluation,
  title = {{An Evaluation Dataset for Identifying Communicative Functions of Sentences in English Scholarly Papers}},
  author = {Kenichi Iwatsuki, Florian Boudin and Akiko Aizawa},
  booktitle = {Proceedings of the Twelfth Language Resources and Evaluation Conference},
  year = {2020},
  url = {https://aclanthology.org/2020.lrec-1.212/}
}

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