Frozen in the Middle: Hidden States Remain Unchanged Across Intermediate Layers of Language Models.

@inproceedings{tikhonov-2025-frozen, author = {Pavel Tikhonov and Dmitry Ilvovsky}, editor = {Carl Yang and Meeyoung Cha and Senjuti Basu Roy and Chanyoung Park and Zhenhui Jessie Li and Noseong Park and Carl Yang and Senjuti Basu Roy and Zhenhui Jessie Li and Jaap Kamps and Kijung Shin and Bryan Hooi and Lifang He}, title = {{Frozen in the Middle: Hidden States Remain Unchanged Across Intermediate Layers of Language Models}}, booktitle = {{Proceedings of the 34th ACM International Conference on Information and Knowledge Management, CIKM 2025, Seoul, Republic of Korea, November 10-14, 2025}}, pages = {5289--5293}, publisher = {ACM}, year = {2025}, url = {https://doi.org/10.1145/3746252.3760890}, doi = {https://doi.org/10.1145/3746252.3760890} }