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Sentiment classification (SC) often suffers from low-resource challenges such as domain-specific contexts, imbalanced label distributions, and few-shot scenarios. The potential of the diffusion language model (LM) for textual data…

计算与语言 · 计算机科学 2024-09-24 Zhuowei Chen , Lianxi Wang , Yuben Wu , Xinfeng Liao , Yujia Tian , Junyang Zhong

When using an LLM to process text outside the training domain(s), an often overlooked factor is vocabulary mismatch, where the general-domain tokenizer fails to capture frequent domain-specific terms, leading to higher token fertility and…

计算与语言 · 计算机科学 2025-10-01 Christian Herold , Michael Kozielski , Nicholas Santavas , Yannick Versley , Shahram Khadivi

Recent advancements in multimodal large language models (MLLMs) have demonstrated remarkable capabilities in processing diverse data types, yet significant disparities persist between human cognitive processes and computational approaches…

计算与语言 · 计算机科学 2025-05-09 Dongxing Yu

Large Language Model (LLM)-based Text-to-Speech (TTS) models have already reached a high degree of naturalness. However, the precision control of TTS inference is still challenging. Although instruction-based Text-to-Speech (Instruct-TTS)…

音频与语音处理 · 电气工程与系统科学 2026-03-17 Sihang Nie , Xiaofen Xing , Jingyuan Xing , Baiji Liu , Xiangmin Xu

While model architecture and training objectives are well-studied, tokenization, particularly in multilingual contexts, remains a relatively neglected aspect of Large Language Model (LLM) development. Existing tokenizers often exhibit high…

Diffusion models have emerged as a powerful paradigm for modern generative modeling, demonstrating strong potential for large language models (LLMs). Unlike conventional autoregressive (AR) models that generate tokens sequentially,…

机器学习 · 计算机科学 2026-01-09 Gen Li , Changxiao Cai

Researchers have explored different ways to improve large language models (LLMs)' capabilities via dummy token insertion in contexts. However, existing works focus solely on the dummy tokens themselves, but fail to leverage the inherent…

计算与语言 · 计算机科学 2026-04-16 Zhichen Liu , Yongyuan Li , Yang Xu

Large language models (LLMs) have shown remarkable performance in various natural language processing tasks. However, a primary constraint they face is the context limit, i.e., the maximum number of tokens they can process. Previous works…

机器学习 · 计算机科学 2024-04-17 Woomin Song , Seunghyuk Oh , Sangwoo Mo , Jaehyung Kim , Sukmin Yun , Jung-Woo Ha , Jinwoo Shin

Large language models (LLMs) excel at natural language understanding and generation but remain vulnerable to factual errors, limiting their reliability in knowledge-intensive tasks. While decoding-time strategies provide a promising…

Diffusion Language Models (DLMs) have emerged as a compelling alternative to autoregressive approaches, enabling parallel text generation with competitive performance. Despite these advantages, there is a critical instability in DLMs: the…

计算与语言 · 计算机科学 2026-02-24 Zihou Zhang , Zheyong Xie , Li Zhong , Haifeng Liu , Yao Hu , Shaosheng Cao

DNA language models are increasingly used to represent genomic sequence, yet their effectiveness depends critically on how raw nucleotides are converted into model inputs. Unlike natural language, DNA offers no canonical boundaries, making…

基因组学 · 定量生物学 2026-05-21 Taewon Kim , Jihwan Shin , Hyomin Kim , Youngmok Jung , Jonghoon Lee , Won-Chul Lee , Sungsoo Ahn , Insu Han

Diffusion large language models (dLLMs) generate text via iterative denoising but consistently underperform on multi-step reasoning. We hypothesize this gap stems from a coordination problem: AR models build coherence token-by-token, while…

人工智能 · 计算机科学 2026-03-17 Earl J St Sauver

While transformer-based Large Language Models (LLMs) theoretically support massive context windows, they suffer from severe performance degradation when processing long numerical sequences. We attribute this failure to the attention…

计算与语言 · 计算机科学 2026-04-10 Jie Sun , Yu Liu , Lu Han , Qiwen Deng , Xiang Shu , Yang Xiao , Xingyu Lu , Jun Zhou , Pengfei Liu , Lintao Ma , Jiancan Wu , Xiang Wang

Integrating audio comprehension and generation into large language models (LLMs) remains challenging due to the continuous nature of audio and the resulting high sampling rates. Here, we introduce a novel approach that combines Variational…

音频与语音处理 · 电气工程与系统科学 2025-03-31 Shivam Mehta , Nebojsa Jojic , Hannes Gamper

With the rapid progress of speech language models (SLMs), discrete speech tokens have emerged as a core interface between speech and text, enabling unified modeling across modalities. Recent speech tokenization approaches aim to isolate…

计算与语言 · 计算机科学 2025-06-23 Daejin Jo , Jeeyoung Yun , Byungseok Roh , Sungwoong Kim

Token embeddings play a crucial role in language modeling but, despite this practical relevance, their theoretical understanding remains limited. Our paper addresses the gap by characterizing the structure of embeddings obtained via…

机器学习 · 计算机科学 2025-06-26 Diyuan Wu , Aleksandr Shevchenko , Samet Oymak , Marco Mondelli

Diffusion language models (DLMs) have recently emerged as a promising alternative to autoregressive (AR) approaches, enabling parallel token generation beyond a rigid left-to-right order. Despite growing empirical success, the theoretical…

机器学习 · 计算机科学 2026-02-24 Yunxiao Zhao , Changxiao Cai

The Transformer architecture, a cornerstone of modern Large Language Models (LLMs), has achieved extraordinary success in sequence modeling, primarily due to its attention mechanism. However, despite its power, the standard attention…

机器学习 · 计算机科学 2026-01-08 Zichuan Fu , Wentao Song , Guojing Li , Yejing Wang , Xian Wu , Yimin Deng , Hanyu Yan , Yefeng Zheng , Xiangyu Zhao

Large Language Models (LLMs) struggle with long-context reasoning, not only due to the quadratic scaling of computational complexity with sequence length but also because of the scarcity and expense of annotating long-context data. There…

计算与语言 · 计算机科学 2025-04-18 Linda He , Jue Wang , Maurice Weber , Shang Zhu , Ben Athiwaratkun , Ce Zhang

Diffusion Language Models (DLMs) promise parallel generation and bidirectional context, yet they underperform autoregressive (AR) models in both likelihood modeling and generated text quality. We identify that this performance gap arises…

计算与语言 · 计算机科学 2025-05-27 Litu Rout , Constantine Caramanis , Sanjay Shakkottai