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While state-of-the-art Text-to-Speech systems can generate natural speech of very high quality at sentence level, they still meet great challenges in speech generation for paragraph / long-form reading. Such deficiencies are due to i)…

计算与语言 · 计算机科学 2023-10-10 Yujia Xiao , Shaofei Zhang , Xi Wang , Xu Tan , Lei He , Sheng Zhao , Frank K. Soong , Tan Lee

Large language models (LLMs) have achieved significant performance gains using advanced prompting techniques over various tasks. However, the increasing length of prompts leads to high computational costs and often obscures crucial…

计算与语言 · 计算机科学 2025-01-03 Eunseong Choi , Sunkyung Lee , Minjin Choi , June Park , Jongwuk Lee

Large Reasoning Models (LRMs) have demonstrated impressive capabilities but suffer from cognitive inefficiencies like "overthinking" simple problems and "underthinking" complex ones. While existing methods that use supervised fine-tuning…

人工智能 · 计算机科学 2026-03-24 Tian Liang , Wenxiang Jiao , Zhiwei He , Jiahao Xu , Haitao Mi , Dong Yu

Long Context Understanding (LCU) is a critical area for exploration in current large language models (LLMs). However, due to the inherently lengthy nature of long-text data, existing LCU benchmarks for LLMs often result in prohibitively…

计算与语言 · 计算机科学 2025-07-31 Zhongzhan Huang , Guoming Ling , Shanshan Zhong , Hefeng Wu , Liang Lin

Fine-grained steering of language model outputs is essential for safety and reliability. Prompting and finetuning are widely used to achieve these goals, but interpretability researchers have proposed a variety of representation-based…

The existing Retrieval-Augmented Generation (RAG) systems face significant challenges in terms of cost and effectiveness. On one hand, they need to encode the lengthy retrieved contexts before responding to the input tasks, which imposes…

计算与语言 · 计算机科学 2024-09-25 Zheng Liu , Chenyuan Wu , Ninglu Shao , Shitao Xiao , Chaozhuo Li , Defu Lian

Reranking, the process of refining the output of a first-stage retriever, is often considered computationally expensive, especially with Large Language Models. Borrowing from recent advances in document compression for RAG, we reduce the…

信息检索 · 计算机科学 2025-05-22 Hervé Déjean , Stéphane Clinchant

The advancement of large language models (LLMs) and multi-modal LLMs (MLLMs) has historically relied on scaling model parameters. However, as hardware limits constrain further model growth, the primary computational bottleneck has shifted…

In-context learning enables language models (LM) to adapt to downstream data or tasks by incorporating few samples as demonstrations within the prompts. It offers strong performance without the expense of fine-tuning. However, the…

计算与语言 · 计算机科学 2024-10-15 Jian Gu , Aldeida Aleti , Chunyang Chen , Hongyu Zhang

As retrieval-augmented generation (RAG) tackles complex tasks, increasingly expanded contexts offer richer information, but at the cost of higher latency and increased cognitive load on the model. To mitigate this bottleneck, especially for…

计算与语言 · 计算机科学 2026-04-28 Jia-Chen Gu , Junyi Zhang , Di Wu , Yuankai Li , Kai-Wei Chang , Nanyun Peng

We propose ContextLM, a framework that implicitly learns multi-token prediction by augmenting standard pretraining with an intrinsic next-context prediction objective. ContextLM builds a language model on top of context embeddings that span…

计算与语言 · 计算机科学 2026-02-12 Beiya Dai , Yuliang Liu , Daozheng Xue , Yunchong Song , Qipeng Guo , Kai Chen , Xinbing Wang , Bowen Zhou , Zhouhan Lin

Recent advances in distributed optimization have shown that Newton-type methods with proper communication compression mechanisms can guarantee fast local rates and low communication cost compared to first order methods. We discover that the…

机器学习 · 计算机科学 2021-11-04 Xun Qian , Rustem Islamov , Mher Safaryan , Peter Richtárik

Prompt engineering enables Large Language Models (LLMs) to perform a variety of tasks. However, lengthy prompts significantly increase computational complexity and economic costs. To address this issue, we study six prompt compression…

计算与语言 · 计算机科学 2025-05-02 Zheng Zhang , Jinyi Li , Yihuai Lan , Xiang Wang , Hao Wang

Many document-level neural machine translation (NMT) systems have explored the utility of context-aware architecture, usually requiring an increasing number of parameters and computational complexity. However, few attention is paid to the…

计算与语言 · 计算机科学 2020-09-22 Pei Zhang , Boxing Chen , Niyu Ge , Kai Fan

The translation of pronouns presents a special challenge to machine translation to this day, since it often requires context outside the current sentence. Recent work on models that have access to information across sentence boundaries has…

计算与语言 · 计算机科学 2019-03-07 Mathias Müller , Annette Rios , Elena Voita , Rico Sennrich

Set-based transformer models for amortized probabilistic inference and meta-learning, such as neural processes, prior-fitted networks, and tabular foundation models, excel at single-pass marginal prediction. However, many applications…

In recent years, compressed domain semantic inference has primarily relied on learned image coding models optimized for mean squared error (MSE). However, MSE-oriented optimization tends to yield latent spaces with limited semantic…

计算机视觉与模式识别 · 计算机科学 2025-07-03 Xu Zhang , Ming Lu , Yan Chen , Zhan Ma

We found that enforcing guidance throughout the sampling process is often counterproductive due to the model-fitting issue, where samples are 'tuned' to match the classifier's parameters rather than generalizing the expected condition. This…

计算机视觉与模式识别 · 计算机科学 2024-10-23 Anh-Dung Dinh , Daochang Liu , Chang Xu

As the industry deploys increasingly large and complex neural networks to mobile devices, more pressure is put on the memory and compute resources of those devices. Deep compression, or compression of deep neural network weight matrices, is…

机器学习 · 计算机科学 2018-02-21 Matthew Sotoudeh , Sara S. Baghsorkhi

Retrieval-Augmented Generation (RAG) has become an essential approach for extending the reasoning and knowledge capacity of large language models (LLMs). While prior research has primarily focused on retrieval quality and prompting…

计算与语言 · 计算机科学 2025-12-09 Jiamin Chen , Yuchen Li , Xinyu Ma , Xinran Chen , Xiaokun Zhang , Shuaiqiang Wang , Chen Ma , Dawei Yin