Add W2V2-AASIST submission (ASVspoof5)

submissions/w2v2-aasist.yaml

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+schema_version: 4
+system:
+  name: W2V2-AASIST
+  slug: w2v2-aasist
+  description: 'wav2vec 2.0 (XLS-R 300M) self-supervised front-end fine-tuned end-to-end
+    with an AASIST spectro-temporal graph-attention back-end for speech anti-spoofing.
+    The XLS-R features are projected to 128-d, max-pooled, and fed through a RawNet2-style
+    residual encoder and heterogeneous stacking graph-attention layers. Official TakHemlata/SSL_Anti-spoofing
+    LA checkpoint (LA_model.pth), trained on ASVspoof2019 LA with RawBoost augmentation,
+    FP32, deterministic first-64600-sample window (no random crop).
+
+    '
+  code: https://github.com/TakHemlata/SSL_Anti-spoofing
+  checkpoint: https://huggingface.co/SpeechAntiSpoofingBenchmarks/W2V2-AASIST
+  params_millions: 317.8378
+  paper:
+    arxiv_id: '2202.12233'
+    url: https://arxiv.org/abs/2202.12233
+    bibtex: "@inproceedings{tak2022automatic,\n  title={Automatic speaker verification\
+      \ spoofing and deepfake detection using wav2vec 2.0 and data augmentation},\n\
+      \  author={Tak, Hemlata and Todisco, Massimiliano and Wang, Xin and Jung, Jee-weon\
+      \ and Yamagishi, Junichi and Evans, Nicholas},\n  booktitle={The Speaker and\
+      \ Language Recognition Workshop (Odyssey 2022)},\n  pages={112--119},\n  year={2022}\n\
+      }\n"
+dataset:
+  id: SpeechAntiSpoofingBenchmarks/ASVspoof5
+  revision: 9937de5e630b137bb31e9f5901209b2705ddef63
+  split: test
+scores:
+  eer_percent: 16.2483443586442
+  n_trials: 680774
+  n_skipped: 0
+artifact:
+  scores_url: https://huggingface.co/SpeechAntiSpoofingBenchmarks/W2V2-AASIST/resolve/c694e6687e18b1629449a2a7078583e8d5b2136d/.eval_results/SpeechAntiSpoofingBenchmarks/ASVspoof5/scores.txt
+  scores_sha256: e8acb32f9b5558a7d5e90aca933b9497f76c2d06bf1c868f2bd68b582e75b1fd
+  bench_version: speech-spoof-bench==0.3.4
+submitter:
+  hf_username: korallll
+  contact: k.n.borodin@mtuci.ru
+submitted_at: '2026-06-08'
+notes: XLS-R 300M (wav2vec 2.0) front-end + AASIST back-end, LA_model.pth. Deterministic
+  first-64600-sample window (no random crop).
+reproduction:
+  reproduced_by: SpeechAntiSpoofingBenchmarks
+  reproduced_at: '2026-06-08'
+  reproduced_bench_version: speech-spoof-bench==0.3.4
+  match: scoring