File size: 24,020 Bytes
540e67a
 
 
 
6b76d01
540e67a
 
 
 
c614c4e
6b76d01
c614c4e
 
540e67a
 
 
 
 
 
a8124a8
540e67a
 
a8124a8
540e67a
 
6b76d01
 
 
 
 
 
 
 
c614c4e
540e67a
 
 
 
 
 
 
 
04c0bde
540e67a
 
04c0bde
540e67a
 
 
 
 
 
 
 
 
 
 
04c0bde
540e67a
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
eeac43c
6b76d01
540e67a
 
 
 
 
 
 
 
 
 
 
 
 
a8124a8
540e67a
6b76d01
 
 
540e67a
 
 
eeac43c
6b76d01
540e67a
 
 
 
 
 
 
 
 
 
 
 
a8124a8
 
540e67a
6b76d01
 
 
540e67a
 
 
eeac43c
6b76d01
540e67a
 
 
 
 
 
 
 
 
 
 
 
a8124a8
 
540e67a
6b76d01
 
 
540e67a
 
 
eeac43c
6b76d01
540e67a
 
 
 
 
 
 
 
 
 
 
 
 
a8124a8
540e67a
6b76d01
 
 
540e67a
 
 
eeac43c
6b76d01
540e67a
 
 
 
 
 
 
 
 
 
 
 
a8124a8
 
540e67a
6b76d01
 
 
540e67a
 
 
eeac43c
6b76d01
540e67a
 
04c0bde
540e67a
 
 
 
 
 
 
 
 
 
 
 
6b76d01
 
 
540e67a
 
 
eeac43c
6b76d01
540e67a
 
04c0bde
540e67a
 
 
 
 
 
 
 
 
a8124a8
 
540e67a
6b76d01
 
 
540e67a
 
 
eeac43c
6b76d01
540e67a
 
 
 
 
 
 
 
 
 
 
 
a8124a8
 
540e67a
6b76d01
 
 
540e67a
 
 
eeac43c
6b76d01
540e67a
 
 
 
 
 
04c0bde
540e67a
 
 
 
 
a8124a8
 
540e67a
6b76d01
 
 
540e67a
 
 
eeac43c
6b76d01
540e67a
 
 
 
 
 
04c0bde
540e67a
 
 
 
a8124a8
 
540e67a
6b76d01
 
 
540e67a
 
 
eeac43c
6b76d01
540e67a
 
 
 
 
 
 
 
 
 
 
 
a8124a8
 
540e67a
6b76d01
 
 
540e67a
 
 
eeac43c
6b76d01
540e67a
 
 
 
 
 
 
 
 
 
 
 
a8124a8
 
540e67a
6b76d01
 
 
 
c614c4e
 
 
6b76d01
c614c4e
 
 
 
 
 
 
 
 
 
6b76d01
 
 
c614c4e
 
 
 
6b76d01
c614c4e
 
 
 
 
 
 
 
 
 
6b76d01
 
 
c614c4e
 
 
 
6b76d01
c614c4e
 
 
 
 
 
 
 
 
 
6b76d01
 
 
c614c4e
 
 
 
6b76d01
c614c4e
 
 
 
 
 
 
 
 
 
6b76d01
 
 
c614c4e
 
 
 
6b76d01
c614c4e
 
 
 
 
 
 
 
 
 
6b76d01
 
 
c614c4e
 
 
 
6b76d01
c614c4e
 
 
 
 
 
 
 
 
 
6b76d01
 
 
c614c4e
 
 
 
6b76d01
c614c4e
 
 
 
 
 
 
 
 
 
6b76d01
 
 
c614c4e
 
 
 
6b76d01
c614c4e
 
 
 
 
 
 
 
 
 
6b76d01
 
 
c614c4e
 
540e67a
 
 
 
04c0bde
540e67a
 
 
2bd8497
540e67a
eeac43c
45c1706
540e67a
 
2bd8497
fc9e8cf
540e67a
2bd8497
540e67a
 
 
eeac43c
540e67a
2bd8497
 
540e67a
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
{
  "title": "Ropedia Xperience-10M Task Suite Evaluation Protocol",
  "status": "pass",
  "version": "2026-06-01",
  "generated_at_utc": "2026-06-16T04:47:57+00:00",
  "source_files": [
    "docs/data/summary_metrics.json",
    "results/episode_task_suite/summary_report.json",
    "results/episode_task_suite/windows.csv",
    "results/episode_task_suite/feature_manifest.json",
    "docs/data/task_suite_20.json",
    "docs/data/tier2_task_suite.json",
    "results/episode_task_suite/tier2_task_suite/tier2_task_suite_results.json"
  ],
  "scope": {
    "validated_episode_count": 1,
    "annotation": "data/sample/xperience-10m-sample/annotation.hdf5",
    "num_frames": 5821,
    "num_windows": 1161,
    "feature_dim": 8546,
    "window_frames": 20,
    "stride_frames": 5,
    "audio_featurized": true,
    "raw_data_redistributed": false
  },
  "task_suite": {
    "status": "unified_public_sample_suite",
    "task_count": 20,
    "original_public_sample_tasks": 12,
    "additional_public_sample_tasks": 8,
    "unified_results": "docs/data/task_suite_20.json",
    "legacy_additional_task_result_path": "docs/data/tier2_task_suite.json",
    "legacy_path_note": "The tier2_task_suite path is retained for stable links only; tasks 13-20 are presented as part of the same 20-task suite."
  },
  "split_policy": {
    "name": "single_episode_chronological",
    "train_fraction": 0.7,
    "test_fraction": 0.3,
    "why": "The split preserves time order so future episode segments are not mixed randomly into the train set.",
    "limitation": "It is still one episode; cross-episode generalization is evaluated in the multi-episode stage."
  },
  "feature_policy": {
    "input_contract": "8,546-dimensional current feature vector",
    "source_manifest": "results/episode_task_suite/feature_manifest.json",
    "normalization": "Scalers are fit on train windows only for the baseline heads.",
    "audio_status": "Audio is represented in the current feature vector."
  },
  "baselines": [
    {
      "name": "minimal",
      "heads": [
        "softmax",
        "binary logistic",
        "multi-label logistic",
        "ridge regression",
        "ridge projection plus cosine ranking"
      ],
      "purpose": "Keep each task contract interpretable and easy to inspect."
    },
    {
      "name": "neural_mlp",
      "heads": [
        "PyTorch MLP classifier",
        "PyTorch MLP regressor",
        "PyTorch MLP multi-label head"
      ],
      "purpose": "Check nonlinear gains before larger omni-model fine-tuning.",
      "config": {
        "name": "neural_mlp",
        "type": "lightweight PyTorch MLP over shared window features",
        "epochs": 80,
        "hidden_dim": 128,
        "batch_size": 128,
        "learning_rate": 0.001,
        "weight_decay": 0.0001,
        "dropout": 0.1,
        "device": "auto"
      }
    }
  ],
  "task_protocols": [
    {
      "task": "timeline_action",
      "task_display_name": "Action Recognition",
      "origin": "original_public_sample_tasks",
      "family": "supervised classification",
      "unit": "single window",
      "input": "current 20-frame all-feature window",
      "target": "current action label",
      "primary_metric": "macro_f1",
      "higher_is_better": true,
      "leakage_rule": "No future labels enter the input. Chronological split exposes unseen later action labels.",
      "counts": {
        "num_windows": 1144,
        "num_train_windows": 801,
        "num_test_windows": 343
      },
      "minimal_primary_metric": 0.05,
      "neural_primary_metric": 0.014814814814814814,
      "minimal_metric_source": "results/episode_task_suite/timeline_action/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/timeline_action/metrics.json",
      "task_number": 1,
      "suite_label": "Task 01"
    },
    {
      "task": "timeline_subtask",
      "task_display_name": "Procedure Step Recognition",
      "origin": "original_public_sample_tasks",
      "family": "supervised classification",
      "unit": "single window",
      "input": "current 20-frame all-feature window",
      "target": "current subtask label",
      "primary_metric": "macro_f1",
      "higher_is_better": true,
      "leakage_rule": "No future labels enter the input. Chronological split exposes unseen later subtask labels.",
      "counts": {
        "num_windows": 1147,
        "num_train_windows": 803,
        "num_test_windows": 344
      },
      "minimal_primary_metric": 0.05056355513846935,
      "neural_primary_metric": 0.02810810810810811,
      "minimal_metric_source": "results/episode_task_suite/timeline_subtask/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/timeline_subtask/metrics.json",
      "task_number": 2,
      "suite_label": "Task 02"
    },
    {
      "task": "transition_detection",
      "task_display_name": "Action Boundary Detection",
      "origin": "original_public_sample_tasks",
      "family": "temporal diagnostic",
      "unit": "single window",
      "input": "current 20-frame all-feature window",
      "target": "action boundary versus steady",
      "primary_metric": "macro_f1",
      "higher_is_better": true,
      "leakage_rule": "Boundary labels are targets only. Boundary timing is evaluated after prediction.",
      "counts": {
        "num_windows": 1161,
        "num_train_windows": 813,
        "num_test_windows": 348
      },
      "minimal_primary_metric": 0.6118237590630229,
      "neural_primary_metric": 0.5862068965517241,
      "minimal_metric_source": "results/episode_task_suite/transition_detection/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/transition_detection/metrics.json",
      "task_number": 3,
      "suite_label": "Task 03"
    },
    {
      "task": "next_action",
      "task_display_name": "Next-Action Prediction",
      "origin": "original_public_sample_tasks",
      "family": "short-horizon prediction",
      "unit": "single window",
      "input": "current 20-frame all-feature window at time t",
      "target": "action label at t + 20 frames",
      "primary_metric": "macro_f1",
      "higher_is_better": true,
      "leakage_rule": "Future labels are shifted into targets only; model inputs remain current-window features.",
      "counts": {
        "num_windows": 1161,
        "num_train_windows": 813,
        "num_test_windows": 348
      },
      "minimal_primary_metric": 0.05925925925925927,
      "neural_primary_metric": 0.04186046511627907,
      "minimal_metric_source": "results/episode_task_suite/next_action/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/next_action/metrics.json",
      "task_number": 4,
      "suite_label": "Task 04"
    },
    {
      "task": "hand_trajectory_forecast",
      "task_display_name": "Hand Trajectory Forecasting",
      "origin": "original_public_sample_tasks",
      "family": "trajectory regression",
      "unit": "single window",
      "input": "current all-feature window",
      "target": "future left/right hand 3D joints for 10 frames",
      "primary_metric": "mpjpe",
      "higher_is_better": false,
      "leakage_rule": "Future mocap coordinates are targets only, not inputs.",
      "counts": {
        "num_windows": 1159,
        "num_train_windows": 811,
        "num_test_windows": 348
      },
      "minimal_primary_metric": 0.8646570444107056,
      "neural_primary_metric": 0.10785018652677536,
      "minimal_metric_source": "results/episode_task_suite/hand_trajectory_forecast/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/hand_trajectory_forecast/metrics.json",
      "task_number": 5,
      "suite_label": "Task 05"
    },
    {
      "task": "contact_prediction",
      "task_display_name": "Contact State Prediction",
      "origin": "original_public_sample_tasks",
      "family": "binary classification",
      "unit": "single window",
      "input": "non-contact and non-caption feature blocks",
      "target": "any body contact",
      "primary_metric": "macro_f1",
      "higher_is_better": true,
      "leakage_rule": "Contact-derived fields and caption labels are excluded from inputs.",
      "counts": {
        "num_windows": 1161,
        "num_train_windows": 813,
        "num_test_windows": 348
      },
      "minimal_primary_metric": 1.0,
      "neural_primary_metric": 1.0,
      "minimal_metric_source": "results/episode_task_suite/contact_prediction/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/contact_prediction/metrics.json",
      "task_number": 6,
      "suite_label": "Task 06"
    },
    {
      "task": "object_relevance",
      "task_display_name": "Object Relevance Prediction",
      "origin": "original_public_sample_tasks",
      "family": "multi-label classification",
      "unit": "single window",
      "input": "non-caption feature blocks",
      "target": "current relevant object set",
      "primary_metric": "micro_f1",
      "higher_is_better": true,
      "leakage_rule": "Caption/object-label fields are excluded from inputs.",
      "counts": {
        "num_windows": 1161,
        "num_train_windows": 813,
        "num_test_windows": 348
      },
      "minimal_primary_metric": 0.18034382095361662,
      "neural_primary_metric": 0.1679279279279279,
      "minimal_metric_source": "results/episode_task_suite/object_relevance/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/object_relevance/metrics.json",
      "task_number": 7,
      "suite_label": "Task 07"
    },
    {
      "task": "caption_grounding",
      "task_display_name": "Language Grounding",
      "origin": "original_public_sample_tasks",
      "family": "retrieval",
      "unit": "caption query",
      "input": "caption object/interaction query plus candidate sensor windows",
      "target": "matching time window",
      "primary_metric": "mrr",
      "higher_is_better": true,
      "leakage_rule": "Queries are ranked against held-out candidate windows; reported ranks are computed after model scoring.",
      "counts": {
        "num_queries": 348,
        "num_train_windows": 813,
        "num_test_windows": 348
      },
      "minimal_primary_metric": 0.016023479050338015,
      "neural_primary_metric": 0.01684125567132316,
      "minimal_metric_source": "results/episode_task_suite/caption_grounding/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/caption_grounding/metrics.json",
      "task_number": 8,
      "suite_label": "Task 08"
    },
    {
      "task": "cross_modal_retrieval",
      "task_display_name": "Cross-Modal Retrieval",
      "origin": "original_public_sample_tasks",
      "family": "retrieval",
      "unit": "sensor query",
      "input": "motion, IMU, and camera query features",
      "target": "matching depth/video window",
      "primary_metric": "top5_accuracy",
      "higher_is_better": true,
      "leakage_rule": "Query-side and candidate-side feature blocks are split before projection/ranking.",
      "counts": {
        "num_queries": 348,
        "num_train_windows": 813,
        "num_test_windows": 348
      },
      "minimal_primary_metric": 0.367816091954023,
      "neural_primary_metric": 0.19827586206896552,
      "minimal_metric_source": "results/episode_task_suite/cross_modal_retrieval/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/cross_modal_retrieval/metrics.json",
      "task_number": 9,
      "suite_label": "Task 09"
    },
    {
      "task": "modality_reconstruction",
      "task_display_name": "Cross-Modal Reconstruction",
      "origin": "original_public_sample_tasks",
      "family": "cross-modal regression",
      "unit": "single window",
      "input": "motion, IMU, and camera features",
      "target": "depth/video feature vector",
      "primary_metric": "r2",
      "higher_is_better": true,
      "leakage_rule": "Target feature blocks are excluded from the input side.",
      "counts": {
        "num_train_windows": 813,
        "num_test_windows": 348
      },
      "minimal_primary_metric": -0.015271898913936655,
      "neural_primary_metric": -0.010171410134180991,
      "minimal_metric_source": "results/episode_task_suite/modality_reconstruction/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/modality_reconstruction/metrics.json",
      "task_number": 10,
      "suite_label": "Task 10"
    },
    {
      "task": "temporal_order",
      "task_display_name": "Temporal Order Verification",
      "origin": "original_public_sample_tasks",
      "family": "pairwise diagnostic",
      "unit": "adjacent window pair",
      "input": "two adjacent windows",
      "target": "correct versus reversed order",
      "primary_metric": "f1",
      "higher_is_better": true,
      "leakage_rule": "Pairs are built after windowing; labels are synthetic order labels, not input features.",
      "counts": {
        "num_samples": 2320,
        "num_train_samples": 1624,
        "num_test_samples": 696
      },
      "minimal_primary_metric": 0.5399515738498789,
      "neural_primary_metric": 0.8520179372197308,
      "minimal_metric_source": "results/episode_task_suite/temporal_order/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/temporal_order/metrics.json",
      "task_number": 11,
      "suite_label": "Task 11"
    },
    {
      "task": "misalignment_detection",
      "task_display_name": "Multimodal Synchronization Detection",
      "origin": "original_public_sample_tasks",
      "family": "pairwise diagnostic",
      "unit": "paired modality window",
      "input": "motion side plus visual/depth side",
      "target": "aligned versus shifted by 8 windows",
      "primary_metric": "f1",
      "higher_is_better": true,
      "leakage_rule": "Shift labels are synthetic targets; shifted visual/depth blocks are generated after feature splitting.",
      "counts": {
        "num_samples": 2306,
        "num_train_samples": 1614,
        "num_test_samples": 692
      },
      "minimal_primary_metric": 0.5051698670605613,
      "neural_primary_metric": 0.7152682255845944,
      "minimal_metric_source": "results/episode_task_suite/misalignment_detection/metrics.json",
      "neural_metric_source": "results/episode_task_suite/neural_mlp/misalignment_detection/metrics.json",
      "task_number": 12,
      "suite_label": "Task 12"
    },
    {
      "task": "long_horizon_next_action",
      "task_display_name": "Long-Horizon Next-Action Forecasting",
      "origin": "additional_public_sample_tasks",
      "family": "classification",
      "unit": "single aligned window",
      "input": "Current 20-frame non-caption multimodal window.",
      "target": "Action label five seconds later.",
      "primary_metric": "macro_f1",
      "higher_is_better": true,
      "minimal_primary_metric": 0.07499999999999998,
      "neural_primary_metric": 0.06545454545454546,
      "minimal_metric_source": "results/episode_task_suite/tier2_task_suite/long_horizon_next_action/metrics.json",
      "neural_metric_source": "results/episode_task_suite/tier2_task_suite/neural_mlp/long_horizon_next_action/metrics.json",
      "meaning": "Tests whether the current state carries enough procedure context to forecast beyond the one-second core next-action task.",
      "task_number": 13,
      "suite_label": "Task 13"
    },
    {
      "task": "next_subtask_forecast",
      "task_display_name": "Long-Horizon Next-Subtask Forecasting",
      "origin": "additional_public_sample_tasks",
      "family": "classification",
      "unit": "single aligned window",
      "input": "Current 20-frame non-caption multimodal window.",
      "target": "Procedure subtask label five seconds later.",
      "primary_metric": "macro_f1",
      "higher_is_better": true,
      "minimal_primary_metric": 0.04545454545454545,
      "neural_primary_metric": 0.050724637681159424,
      "minimal_metric_source": "results/episode_task_suite/tier2_task_suite/next_subtask_forecast/metrics.json",
      "neural_metric_source": "results/episode_task_suite/tier2_task_suite/neural_mlp/next_subtask_forecast/metrics.json",
      "meaning": "Moves from immediate action anticipation to higher-level procedure-state prediction.",
      "task_number": 14,
      "suite_label": "Task 14"
    },
    {
      "task": "interaction_text_prediction",
      "task_display_name": "Interaction Text Prediction",
      "origin": "additional_public_sample_tasks",
      "family": "classification",
      "unit": "single aligned window",
      "input": "Current 20-frame sensor window with caption-text features removed.",
      "target": "Raw annotation interaction phrase for the same window.",
      "primary_metric": "macro_f1",
      "higher_is_better": true,
      "minimal_primary_metric": 0.04444444444444444,
      "neural_primary_metric": 0.0380952380952381,
      "minimal_metric_source": "results/episode_task_suite/tier2_task_suite/interaction_text_prediction/metrics.json",
      "neural_metric_source": "results/episode_task_suite/tier2_task_suite/neural_mlp/interaction_text_prediction/metrics.json",
      "meaning": "Uses the raw caption JSON interaction field as a language target instead of only the hashed text feature.",
      "task_number": 15,
      "suite_label": "Task 15"
    },
    {
      "task": "action_object_relation",
      "task_display_name": "Action-Object Relation Prediction",
      "origin": "additional_public_sample_tasks",
      "family": "classification",
      "unit": "single aligned window",
      "input": "Current 20-frame sensor window with caption-text features removed.",
      "target": "Joint action plus active object-set relation.",
      "primary_metric": "macro_f1",
      "higher_is_better": true,
      "minimal_primary_metric": 0.0,
      "neural_primary_metric": 0.0,
      "minimal_metric_source": "results/episode_task_suite/tier2_task_suite/action_object_relation/metrics.json",
      "neural_metric_source": "results/episode_task_suite/tier2_task_suite/neural_mlp/action_object_relation/metrics.json",
      "meaning": "Evaluates whether a model can bind what action is happening to which objects are involved.",
      "task_number": 16,
      "suite_label": "Task 16"
    },
    {
      "task": "object_set_forecast",
      "task_display_name": "Future Object-Set Forecasting",
      "origin": "additional_public_sample_tasks",
      "family": "multi_label",
      "unit": "single aligned window",
      "input": "Current 20-frame sensor window with caption-text features removed.",
      "target": "Object set active five seconds later.",
      "primary_metric": "micro_f1",
      "higher_is_better": true,
      "minimal_primary_metric": 0.16939890710382516,
      "neural_primary_metric": 0.19718309859154928,
      "minimal_metric_source": "results/episode_task_suite/tier2_task_suite/object_set_forecast/metrics.json",
      "neural_metric_source": "results/episode_task_suite/tier2_task_suite/neural_mlp/object_set_forecast/metrics.json",
      "meaning": "Predicts which objects will become relevant soon, not only which objects are relevant now.",
      "task_number": 17,
      "suite_label": "Task 17"
    },
    {
      "task": "imu_to_hand_pose",
      "task_display_name": "IMU-to-Hand Pose Reconstruction",
      "origin": "additional_public_sample_tasks",
      "family": "regression",
      "unit": "single aligned window",
      "input": "Current IMU acceleration/gyroscope feature block only.",
      "target": "Current left/right hand joint feature blocks.",
      "primary_metric": "mae",
      "higher_is_better": false,
      "minimal_primary_metric": 0.042049407958984375,
      "neural_primary_metric": 0.042562149465084076,
      "minimal_metric_source": "results/episode_task_suite/tier2_task_suite/imu_to_hand_pose/metrics.json",
      "neural_metric_source": "results/episode_task_suite/tier2_task_suite/neural_mlp/imu_to_hand_pose/metrics.json",
      "meaning": "A sensor-bridge probe for how much hand configuration can be recovered from inertial motion alone.",
      "task_number": 18,
      "suite_label": "Task 18"
    },
    {
      "task": "camera_view_sync_retrieval",
      "task_display_name": "Camera-View Synchronization Retrieval",
      "origin": "additional_public_sample_tasks",
      "family": "retrieval",
      "unit": "held-out query window",
      "input": "Fisheye camera-1 feature query projected into fisheye camera-3 feature space.",
      "target": "The synchronized held-out camera-3 window.",
      "primary_metric": "mrr",
      "higher_is_better": true,
      "minimal_primary_metric": 0.4943004846572876,
      "neural_primary_metric": 0.24086658656597137,
      "minimal_metric_source": "results/episode_task_suite/tier2_task_suite/camera_view_sync_retrieval/metrics.json",
      "neural_metric_source": "results/episode_task_suite/tier2_task_suite/neural_mlp/camera_view_sync_retrieval/metrics.json",
      "meaning": "Stress-tests multi-camera time alignment beyond the core cross-modal retrieval task.",
      "task_number": 19,
      "suite_label": "Task 19"
    },
    {
      "task": "time_to_transition",
      "task_display_name": "Time-to-Next-Transition Regression",
      "origin": "additional_public_sample_tasks",
      "family": "regression",
      "unit": "single aligned window",
      "input": "Current 20-frame non-caption multimodal window.",
      "target": "Frames until the next action-label boundary, capped at 200 frames.",
      "primary_metric": "mae",
      "higher_is_better": false,
      "minimal_primary_metric": 10.53735637664795,
      "neural_primary_metric": 10.55449390411377,
      "minimal_metric_source": "results/episode_task_suite/tier2_task_suite/time_to_transition/metrics.json",
      "neural_metric_source": "results/episode_task_suite/tier2_task_suite/neural_mlp/time_to_transition/metrics.json",
      "meaning": "Turns boundary detection into a continuous timing estimate for procedural control.",
      "task_number": 20,
      "suite_label": "Task 20"
    }
  ],
  "global_leakage_controls": [
    "Use chronological train/test splits instead of random window shuffling.",
    "Fit scalers and learned projections on train windows only.",
    "Keep future labels, future mocap, contact labels, object labels, and caption labels on the target side unless a task explicitly treats language as the query.",
    "For cross-modal tasks, split query-side and candidate-side feature blocks before training and ranking.",
    "Report unseen test classes when the chronological split exposes labels absent from the train segment."
  ],
  "current_limitations": [
    "Cross-episode generalization for Qwen3-Omni has a first verified diagnostic pilot, but strong model quality is not yet shown.",
    "Feature-vector reconstruction is separate from pixel depth, mesh, NeRF, or Gaussian reconstruction.",
    "The final verified Qwen3-Omni diagnostic result meets the strict-JSON target, but action/subtask held-out quality remains weak and needs error analysis before larger model-quality claims.",
    "Full audio-visual representation learning still needs multi-episode training; the current report includes single-episode audio/no-audio ablations."
  ],
  "scale_up_gate": {
    "required_before_next_omni_quality_pilot": [
      "selected prepared Xperience-10M episodes",
      "held-out episode split with no train/test episode leakage",
      "validation samples during training",
      "manifest, training metadata, progress logs, metrics, predictions, and run report",
      "held-out evaluation on test episodes rather than train windows"
    ],
    "current_status": "verified diagnostic result; strict-JSON quality target met, action/subtask quality still weak",
    "evidence": [
      "docs/data/omni_finetune_verified_result.json",
      "results/omni_finetune/verified_public/"
    ]
  }
}