---
title: "Exploring Cognitively Informed Sentence — Säuberli 2026"
description: "Text simplification systems usually learn what counts as \"easy\" from human judgments or crowdsourced reference simplifications."
authors: ["Andreas Säuberli", "Diego Frassinelli", "Barbara Plank"]
year: 2026
venue: "Proceedings fo the Second International Workshop on Eye-Tracking Resources and Evaluation for Human-Aligned NLP"
source: "https://aclanthology.org/2026.gaze4nlp-1.3/"
doi: "10.63317/3cju9gvduaga"
licence: "CC BY-NC 4.0 (ELRA, LREC proceedings)"
licence_url: "https://creativecommons.org/licenses/by-nc/4.0/"
summary_licence: "Elamur Cosmic License"
canonical: "https://research.elamur.ai/free/papers/sauberli-2026-exploring-cognitively-informed-sentence-simplification/"
---
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# Exploring Cognitively Informed Sentence Simplification with Gaze-Guided Text Generation

**Authors:** Andreas Säuberli, [Diego Frassinelli](https://md.research.elamur.ai/free/authors/diego-frassinelli/), [Barbara Plank](https://md.research.elamur.ai/free/authors/barbara-plank/) · **Year:** 2026 · **Venue:** Proceedings fo the Second International Workshop on Eye-Tracking Resources and Evaluation for Human-Aligned NLP · **Licence:** [CC BY-NC 4.0 (ELRA, LREC proceedings)](https://creativecommons.org/licenses/by-nc/4.0/)

**Links:** [Publisher's page](https://aclanthology.org/2026.gaze4nlp-1.3/) · [PDF](https://aclanthology.org/2026.gaze4nlp-1.3.pdf) · [DOI 10.63317/3cju9gvduaga](https://doi.org/10.63317/3cju9gvduaga) · [OpenAlex](https://openalex.org/W7166593412)

**Citations:** 0 citations (openalex-snapshot · 2026-10-14)

## Summary
Text simplification systems usually learn what counts as "easy" from human judgments or crowdsourced reference simplifications. These can diverge from how hard a text actually is to process. This paper tests whether eye-tracking data can steer simplification directly, using gaze-guided text generation (GGTG). In GGTG, a gaze model reranks the next-token candidates proposed by a language model, and a tunable gaze weight sets how strongly predicted reading effort is pushed down. The authors fine-tuned GPT-2 large to predict five word-level reading measures from four English naturalistic-reading corpora. They also built "residual" variants that factor out word length and frequency, so the models would focus on deeper sources of difficulty. Generation used Llama 3.2 (3B, instruction-tuned) with either a paraphrase or a simplify prompt, and the system was evaluated on ASSET. Mild gaze steering slightly improved automatic metrics, even on top of an explicit simplify prompt. However, the changes stayed mostly lexical, and stronger steering produced longer outputs with deeper syntax. The work matters as a first attempt to put cognitive signals inside the simplification process itself, and because the method is modular it can be combined with prompting or fine-tuning.

## Key points
- **Gaze models:** GPT-2 large (774M) was trained separately for each of five measures:
  - duration of the initial fixation on a word
  - total time spent on a word during the first pass
  - time from first reaching a word until moving beyond it to the right
  - first-pass skipping rate
  - first-pass regression rate
- **Training data:** EMTeC, OneStopQA, MECO-L1 English and Provo, with a 90/10 split by text. Residual models predict what remains after a linear regression on word length and Zipf frequency (wordfreq).
- **Evaluation setup:** ASSET validation set (2,000 sentences, ten references each), beam search with beam size 8, and gaze weights from 0 to −3. Metrics were SARI, LENS, LENS-SALSA and FKGL, plus word frequency and Stanza dependency tree depth.
- **Results by gaze weight:** At weight −1, SARI and LENS-SALSA rose slightly, but they fell at stronger weights. Around −3, longer sentences cancelled the FKGL gains, and tree depth tended to increase.
- **Results by measure:** First-pass reading time gave the most consistent improvements. Residual models had weaker effects overall. Code is available at github.com/mainlp/gaze-guided-sentence-simplification.

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

Fields: [Machine translation](https://md.research.elamur.ai/free/shelves/machine-translation/) · [Natural language processing](https://md.research.elamur.ai/free/shelves/nlp/)

## Cite

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

```bibtex
@inproceedings{sauberli2026exploring,
  title = {{Exploring Cognitively Informed Sentence Simplification with Gaze-Guided Text Generation}},
  author = {Säuberli, Andreas and Frassinelli, Diego and Plank, Barbara},
  booktitle = {Proceedings fo the Second International Workshop on Eye-Tracking Resources and Evaluation for Human-Aligned NLP},
  year = {2026},
  doi = {10.63317/3cju9gvduaga},
  url = {https://doi.org/10.63317/3cju9gvduaga}
}
```

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