Pith Number

pith:EO55UQAS

pith:2026:EO55UQASBAK6CD4FR6NHWWBBME

not attested not anchored not stored refs resolved

An Interpretable Closed-Loop Intelligent Tutoring System for Multimodal Affective Feedback in Asynchronous Presentation Training

Hung-Yue Suen, Kuo-En Hung

A closed-loop multimodal ITS using traceable BARS feedback produces measurable gains in presentation skills for 204 adult learners.

arxiv:2605.17468 v1 · 2026-05-17 · cs.HC · cs.AI

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EO55UQASBAK6CD4FR6NHWWBBME}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

In a pre-post validation study with 204 adult learners over a 30-day practice window, participants demonstrated significant improvements across all seven BARS dimensions (Cohen's d = 0.39-0.90), with practice frequency showing a strong positive association with posttest performance after controlling for baseline scores and demographics.

C2weakest assumption

The pre-post gains are caused by the ITS feedback rather than by repeated practice alone or by self-selection of motivated participants; the abstract does not describe a control group or randomization that would isolate the system's contribution.

C3one line summary

An XGBoost-based ITS with a three-layer interpretable feedback architecture uses multimodal features from 10,360 MOOC video segments to score seven BARS dimensions and produces measurable skill gains in a 204-learner 30-day study.

References

50 extracted · 50 resolved · 0 Pith anchors

[1] Controlled evaluation of a multimodal system to improve oral presentation skills in a real learning setting, 2020 · doi:10.1111/bjet.12987

[2] OpenOPAF: An open source multimodal system for automated feedback for oral presentations, 2024 · doi:10.18608/jla.2024.8411

[3] Evaluation of presentation skills in the context of online learning: A literature review, 2023 · doi:10.18178/ijiet.2023.13.5.1879

[4] Developing a computer -based tutor utilizing generative artificial intelligence (GAI) and retrieval-augmented generation (RAG), 2025 · doi:10.1007/s10639-024-13129-

[5] Predicting presentation skill of a speaker using automatic speaker and audience measurement, 2022 · doi:10.1109/tlt.2022.3171601

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:04:40.491757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23bbda40120815e10f858f9a7b58216126f3b3bbf26d4b23387e74c0b456f0a3

Aliases

arxiv: 2605.17468 · arxiv_version: 2605.17468v1 · doi: 10.48550/arxiv.2605.17468 · pith_short_12: EO55UQASBAK6 · pith_short_16: EO55UQASBAK6CD4F · pith_short_8: EO55UQAS

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EO55UQASBAK6CD4FR6NHWWBBME \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 23bbda40120815e10f858f9a7b58216126f3b3bbf26d4b23387e74c0b456f0a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ee9a1ef8277a5f59ddabeb5cc2eae36dab0a0e0a1473cd19cea92a11fb48c89",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2026-05-17T14:12:40Z",
    "title_canon_sha256": "f9bbddaf17babcfd3b0b44e68da25164a898092714f8e142cba8d1fa2bca0295"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17468",
    "kind": "arxiv",
    "version": 1
  }
}