Delegate wearer boundary semantics to review

manuscript/main/main.tex

@@ -233,14 +233,16 @@ participant timeline is retained to derive committed interaction events for
 behavioral evaluation.
 
 \textbf{Behavioral event annotation.}
-We use floor-level wearer transitions as high-recall anchors for positive-event
-annotation. Each wearer onset is examined retrospectively for a preceding
-non-wearer floor release as contextual metadata and labeled as a wearer-entry
-whenever the subsequent wearer speech constitutes a genuine floor take,
-including re-entry while another speaker is active. Similarly, each wearer offset
-is examined for a new competing non-wearer onset during the current wearer turn
-and labeled as INT-yield only when the competing speaker genuinely takes over
-the floor. We use permissive temporal retrieval and let an LLM jointly inspect
+We use every observed wearer activity transition as a high-recall semantic
+candidate. For each wearer onset, nearby preceding non-wearer releases, the
+intervening silence gap, and concurrent activity are retained as contextual
+facts; the onset is labeled as wearer entry only when the subsequent wearer
+speech constitutes a genuine floor take, including re-entry while another
+speaker is active. For each wearer offset, nearby non-wearer onsets and offsets,
+pre-existing and newly active speakers, overlap durations, and subsequent
+speakers are retained without a timing-based takeover gate; the offset is
+labeled as INT-yield only when a non-wearer genuinely takes over and the wearer
+relinquishes the floor. We let an LLM jointly inspect
 participant-resolved timing and transcripts to provide a semantic pre-label,
 followed by mandatory human adjudication. Separately, we mine regions with no
 wearer response that nevertheless constitute false-positive opportunities:
@@ -272,7 +274,9 @@ HN: other backchannel               & \todo{--} & \todo{--} \\
 HN: non-takeover overlap            & \todo{--} & \todo{--} \\
 HN: wearer holds floor              & \todo{--} & \todo{--} \\
 \hline
-Excluded / fallback                 & \todo{--} & \todo{--} \\
+Excluded: valid but out of scope    & \todo{--} & \todo{--} \\
+Excluded: insufficient evidence     & \todo{--} & \todo{--} \\
+Excluded: data quality              & \todo{--} & \todo{--} \\
 \textbf{Scoring-eligible total}     & \todo{--} & \todo{--} \\
 \hline
 \end{tabular}
@@ -557,42 +561,38 @@ because, by definition, many contain no wearer transition.
 
 \subsection{Positive-event mining}
 
-\textbf{Floor-level transitions.}
-Short wearer-silence gaps are conditionally merged before positive mining. In
-the current audit configuration, a raw onset after at most 0.8~s of silence is
-treated as a within-turn resumption unless the gap contains sustained competing
-non-wearer activity. Short feedback-like activity does not by itself split the
-wearer episode. This grouping changes only the behavioral-event layer, not the
-source intervals or dense targets.
+\textbf{Wearer activity transitions.}
+We preserve every raw wearer $0\!\rightarrow\!1$ and $1\!\rightarrow\!0$
+boundary as a semantic review candidate. Candidate construction does not merge
+short silence gaps, infer within-turn resumption, or decide whether overlapping
+speech constitutes takeover. It only records participant-resolved temporal and
+transcript facts. The source intervals and dense targets remain unchanged.
 
 \textbf{Wearer entry.}
-Every floor-level wearer onset at $t_b$ is proposed as a wearer-entry candidate.
-We additionally search backward for plausible non-wearer floor releases. A
-release at $t_r$ is retained as a contextual option
-only when the interval from $t_r$ to $t_b$ contains neither intervening wearer
-speech nor a competing non-wearer onset. Each wearer onset contributes at most
-one review item: $t_b$ is its immutable \emph{behavior anchor}, and the item
-stores every admissible \emph{opportunity-anchor} option and response delay.
-Silence duration alone does not reject an option. A preceding release is not
-required for a positive entry: the wearer may enter after a release, from
-silence, or while another speaker remains active. When a release clearly
-prompts the entry, the LLM or human may select one supplied option; neither may
-invent or move a trigger timestamp. The release relation is metadata for
-response-oriented analyses, not part of the positive entry label.
+Every raw wearer onset at $t_b$ is proposed as one wearer-entry review item.
+We search backward within the retrieval window for non-wearer offsets and store
+each one with its response delay and factual indicators of intervening wearer
+speech, intervening other onsets, and concurrent activity. These are possible
+context anchors rather than deterministically admissible causes. The LLM and
+human reviewer decide whether the boundary is a genuine new entry, a
+within-turn resumption, a wearer backchannel, or an excluded non-event. A
+preceding release is not required for a positive entry: the wearer may enter
+after a release, from silence, or while another speaker remains active. When a
+release clearly prompts the entry, the LLM or human may select one supplied
+option; neither may invent or move a timestamp.
 
 \textbf{INT-yield.}
-Starting from an episode-ending wearer offset $t_y$, we search backward inside
-the current wearer episode for a new competing non-wearer onset $t_o$. With
-$t_w$ denoting the wearer-episode start, an INT candidate must satisfy
-\begin{equation}
- t_w < t_o < t_y < t_o^{\mathrm{off}}.
- \label{eq:int_candidate}
-\end{equation}
-The current audit allows a one-frame (50-ms) tolerance only at the offset
-boundary. Pre-existing other activity, post-completion onsets, offsets inside a
-merged wearer episode, and completion-to-silence remain controls. Timing only
-retrieves a possible interruption; the LLM and human annotator decide whether
-the competitor genuinely takes over and the wearer yields.
+Every raw wearer offset $t_y$ is proposed as an INT-yield review item. The
+generator records the current wearer activity-run start, all nearby non-wearer
+onsets and offsets, activity immediately before and after $t_y$, whether an
+other speaker is pre-existing or begins during wearer speech, strict and
+50-ms-tolerant boundary crossing, overlap duration, the next speech onset,
+transcripts, and target-of-speech metadata. Relations such as
+$t_w<t_o<t_y<t_o^{\mathrm{off}}$ are descriptive evidence only: they neither
+admit nor reject a candidate and do not establish takeover. The LLM and human
+annotator answer whether the wearer stopped because a non-wearer genuinely took
+over the floor. Natural completion, post-completion activity, and within-turn
+pauses are therefore resolved semantically rather than pre-filtered.
 
 \subsection{False-positive opportunity mining}
 
@@ -624,9 +624,11 @@ relabel it, or exclude an
 unscorable region. Only human-confirmed \textsc{Wearer-Entry},
 \textsc{INT-Yield}, and hard-negative opportunities enter evaluation;
 \textsc{Exclude} candidates do not. Thus \textsc{Exclude} is the sole
-non-scoring outcome for out-of-scope non-events (e.g., natural wearer completion
-that merely coincides with feedback), insufficient evidence, unresolvable data
-quality, or pre-label disagreement.
+non-scoring verdict, but every exclusion retains a closed-vocabulary reason and
+derived aggregation group. We report valid-but-out-of-scope behavior (e.g.,
+natural wearer completion coincident with feedback), insufficient semantic
+evidence, and data-quality failures separately; model-pass disagreement belongs
+to insufficient evidence and is never counted as corrupt data.
 Annotation-only transcripts, identities, target-of-speech metadata, LLM output,
 and future observations are never supplied to the evaluated forecasting model.