Internal Module Catalog¶

Internal. This catalog is for maintainers who need to navigate the current codebase. Names here are not a compatibility promise. Private underscore-prefixed helpers are intentionally omitted.

Configuration and runtime¶

Module	Concrete classes/functions	Called from
`core.config.schema`	`SystemConfig`, `DataConfig`, `ModelConfig`, `TrainConfig`, `IOConfig`, `ConfigDocument`	Schema/config tooling.
`core.config.runtime_adapter`	namespace conversion and runtime adaptation functions	Config loader and wrappers.
`core.trainer.classification_trainer`	`BaseTrainerClassification`, `MVTrainerClassification`, `TrackingTrainerClassification`, `FramesTrainerClassification`, `Trainer_Classification`	`ClassificationModel`.
`core.trainer.localization_trainer`	`Trainer_pl`, `Trainer_e2e`, `Inferer`, `Evaluator`	`LocalizationModel`.
`core.trainer.vqa_trainer`	backend trainers, SFT dataset/collator classes, `Trainer_VQA`	`VQAModel`.

Datasets¶

Module	Concrete classes/functions	Caller/route
`datasets.classification_dataset`	`ClassificationDataset`, `VideoDataset`, `TrackingDataset`, `HFTrackingDataset`, `H5TrackingDataset`	Classification dataset factory.
`datasets.localization_dataset`	`FrameReader`, `ActionSpotDataset`, `ActionSpotVideoDataset`, feature and SoccerNet dataset classes	`LocalizationDataset` selection.
`datasets.vqa_dataset`	`VQADataset`	VQA builder route.
`datasets.hf_json` / `hf_tracking`	prepared-split records and readers	Hub-backed manifest preparation.

Models¶

Module family	Concrete implementation groups	Selected by
`models.base`	E2E, ContextAware, LearnablePooling, tracking, VideoMAE/video, rule-based, X-VARS, and Qwen model classes	Top-level model builder.
`models.backbones.builder`	extract-feature classes, graph encoders, video backbones	`build_backbone`.
`models.neck.builder`	aggregation, temporal, pooling, VLAD/RVLAD classes	`build_neck`.
`models.heads.builder`	multi-view, tracking, temporal E2E, linear, and CALF heads	`build_head`.
`models.utils`	temporal-shift, prediction, prompting, feature-index, and base utilities	Model-family implementation.

Metrics and utilities¶

Module	Concrete classes/functions	Notes
`metrics.classification_metric`	classification metric functions and detailed artifact writer	Detailed report function writes files.
`metrics.localization_metric`	AP/mAP functions, `ErrorStat`, `ForegroundF1`, `AverageMeter`, prediction/result writers	Some functions write JSON/evaluation output.
`metrics.vqa_metric`	`compute_vqa_metrics` and internal normalization/scoring helpers	Returns serializable VQA scores.
`tools.*`	conversion and Hub-transfer implementation helpers	Public export boundary is documented in Tool Reference.

Use the extension API pages for supported customization points and source links/signatures. Search the named module before changing an internal class, then add coverage in the closest existing test tier.