collaborators

5 papers

cs.CL2026

AdaPonderLM: Gated Pondering Language Models with Token-Wise Adaptive Depth

Shixiang Song, He Li, Zitong Wang +6

Test-time scaling via recurrent/iterative Transformers enables large language models to spend more computation at inference, but most pretrained recurrent LMs run a fixed number of…

cs.CL2026

Next Concept Prediction in Discrete Latent Space Leads to Stronger Language Models

Yuliang Liu, Yunchong Song, Yixuan Wang +6

We propose Next Concept Prediction (NCP), a generative pretraining paradigm built on top of Next Token Prediction (NTP). NCP predicts discrete concepts that span multiple tokens, t…

cs.CL2025

PonderLM-2: Pretraining LLM with Latent Thoughts in Continuous Space

Boyi Zeng, He Li, Shixiang Song +5

The remarkable success of Chain-of-Thought (CoT), which enhances performance by scaling generation steps at test-time, inspires us to ask: can we leverage a similar scaling of comp…

cs.CL2025

PonderLM: Pretraining Language Models to Ponder in Continuous Space

Boyi Zeng, Shixiang Song, Siyuan Huang +6

Humans ponder before articulating complex sentence elements, enabling deeper cognitive processing through focused effort. In this work, we introduce this pondering process into lan…

cs.CL2025

FreqKV: Key-Value Compression in Frequency Domain for Context Window Extension

Jushi Kai, Yixuan Wang, Boyi Zeng +4

Existing key-value (KV) cache compression methods for large language models (LLMs) often rely on token eviction, which risks losing critical local information in both long prefilli…