acmmm-author-response

ACM MM Author Response

Use this to write the ACM Multimedia rebuttal. It is optional and anonymous, it must not add new external links, and its real audience is the area chair who will weigh it against the reviews in discussion.

Triage before writing

Sort every review point into one of three buckets:

Bucket	Example	Response
Factual error	"No ablation of the fusion" (there is one, in §4.3)	Point to it precisely; this is your strongest move
Fixable gap	"Missing a late-fusion baseline"	Add the small result if you can run it in time
Judgment call	"The delta is incremental"	Reframe the significance briefly, or concede narrowly

Lead with the factual corrections — they are the points an AC can verify and act on fastest.

Structure for the AC

Write for a reader who is skimming several rebuttals. Make it navigable:

[R1, R2 shared concern: fusion not shown to matter]
  -> Table A (new): leave-one-modality-out; audio-text term = +X of the +Y total gain.
[R1 factual: "no user study"]
  -> §5 reports a user study, N raters, agreement kappa; see supplement S3.
[R3 judgment: "incremental over late fusion"]
  -> Our gain over the late-fusion baseline is in Table 1; the mechanism (Table A) is the novelty.
[R2 request: clarify synchronization assumption]
  -> Conceded; we will state it explicitly in §3 (one sentence).

Group shared concerns once; do not repeat the same answer per reviewer.

Small confirmatory results

• Add only results you can actually produce before the deadline — a leave-one-modality-out ablation, one requested baseline, or a small user-study extension.
• Describe new numbers in text/tables inside the rebuttal; you cannot add a link to an external file, and you cannot add pages to the paper.
• Do not promise experiments you cannot show; an AC discounts unbacked promises.

Calibrated concessions

Conceding a fair minor point raises credibility on the points you contest. State clearly what you will change (a sentence, a clarified assumption, a moved figure) and why the core claim survives it.