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In this paper, we propose a ``Generalization Stress Test" to assess Large Language Models' (LLMs) generalization ability under slight and controlled perturbations, including option length, problem types, and irrelevant noun replacements. We…

计算与语言 · 计算机科学 2025-09-23 Guangxiang Zhao , Saier Hu , Xiaoqi Jian , Jinzhu Wu , Yuhan Wu , Change Jia , Lin Sun , Xiangzheng Zhang

Deep neural networks (DNNs) are widely studied in various applications. A DNN consists of layers of neurons that compute affine combinations, apply nonlinear operations, and produce corresponding activations. The rectified linear unit…

机器学习 · 计算机科学 2024-02-13 Navid Aftabi , Nima Moradi , Fatemeh Mahroo

This is part II of three-part work. Here, we present a second set of inter-related five variants of simplified Long Short-term Memory (LSTM) recurrent neural networks by further reducing adaptive parameters. Two of these models have been…

神经与进化计算 · 计算机科学 2017-07-18 Atra Akandeh , Fathi M. Salem

Recurrent Neural Networks (RNNs) with sophisticated units that implement a gating mechanism have emerged as powerful technique for modeling sequential signals such as speech or electroencephalography (EEG). The latter is the focus on this…

信号处理 · 电气工程与系统科学 2018-01-09 Meysam Golmohammadi , Saeedeh Ziyabari , Vinit Shah , Eva Von Weltin , Christopher Campbell , Iyad Obeid , Joseph Picone

Machine unlearning offers a promising solution to privacy and safety concerns in large language models (LLMs) by selectively removing targeted knowledge while preserving utility. However, current methods are highly sensitive to downstream…

Large Language Models (LLMs) have made significant progress in dialogue, yet redundant memory contexts severely limit their effectiveness in long-term dialogue agents. External memory systems have been proposed to improve memory…

信息检索 · 计算机科学 2026-05-28 Tan Wang , Yunwei Dong

We propose VL Norm (Variance-reduced Length-dependent Normalization), a simple yet effective loss aggregation method tailored to the characteristic of dynamic generation lengths in Reinforcement Learning with Verifiable Rewards (RLVR).…

机器学习 · 计算机科学 2025-10-14 Zhiyuan He , Xufang Luo , Yike Zhang , Yuqing Yang , Lili Qiu

Continual learning has emerged as an increasingly important challenge across various tasks, including Spoken Language Understanding (SLU). In SLU, its objective is to effectively handle the emergence of new concepts and evolving…

计算与语言 · 计算机科学 2024-02-19 Muqiao Yang , Xiang Li , Umberto Cappellazzo , Shinji Watanabe , Bhiksha Raj

Repetitive action counting, which aims to count periodic movements in a video, is valuable for video analysis applications such as fitness monitoring. However, existing methods largely rely on regression networks with limited…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Ziyu Yao , Xuxin Cheng , Zhiqi Huang , Lei Li

In this paper we compare different types of recurrent units in recurrent neural networks (RNNs). Especially, we focus on more sophisticated units that implement a gating mechanism, such as a long short-term memory (LSTM) unit and a recently…

神经与进化计算 · 计算机科学 2014-12-12 Junyoung Chung , Caglar Gulcehre , KyungHyun Cho , Yoshua Bengio

The presence of Long Distance Dependencies (LDDs) in sequential data poses significant challenges for computational models. Various recurrent neural architectures have been designed to mitigate this issue. In order to test these…

机器学习 · 计算机科学 2018-10-09 Abhijit Mahalunkar , John D. Kelleher

We present a simple regularization technique for Recurrent Neural Networks (RNNs) with Long Short-Term Memory (LSTM) units. Dropout, the most successful technique for regularizing neural networks, does not work well with RNNs and LSTMs. In…

神经与进化计算 · 计算机科学 2015-02-20 Wojciech Zaremba , Ilya Sutskever , Oriol Vinyals

How well do neural networks generalize? Even for grammar induction tasks, where the target generalization is fully known, previous works have left the question open, testing very limited ranges beyond the training set and using different…

计算与语言 · 计算机科学 2023-08-28 Nur Lan , Emmanuel Chemla , Roni Katzir

Large language models (LLMs) have achieved impressive results in natural language processing but are prone to memorizing portions of their training data, which can compromise evaluation metrics, raise privacy concerns, and limit…

机器学习 · 计算机科学 2024-12-03 Eduardo Slonski

Language models are now capable of solving tasks that require dealing with long sequences consisting of hundreds of thousands of tokens. However, they often fail on tasks that require repetitive use of simple rules, even on sequences that…

计算与语言 · 计算机科学 2024-02-21 Mirelle Bueno , Roberto Lotufo , Rodrigo Nogueira

Recurrent neural networks (RNNs), especially long short-term memory (LSTM) RNNs, are effective network for sequential task like speech recognition. Deeper LSTM models perform well on large vocabulary continuous speech recognition, because…

计算与语言 · 计算机科学 2017-03-22 Xu Tian , Jun Zhang , Zejun Ma , Yi He , Juan Wei , Peihao Wu , Wenchang Situ , Shuai Li , Yang Zhang

Large Language Models (LLMs) process every token through all layers of a transformer stack, causing wasted computation on simple queries and insufficient flexibility for harder ones that need deeper reasoning. Adaptive-depth methods can…

计算与语言 · 计算机科学 2026-05-20 Ahmed Heakl , Martin Gubri , Salman Khan , Sangdoo Yun , Seong Joon Oh

Decoder-only large language models (LLMs) are increasingly replacing BERT-style architectures as the backbone for dense retrieval, achieving substantial performance gains and broad adoption. However, the robustness of these LLM-based…

信息检索 · 计算机科学 2026-04-21 Yongkang Li , Panagiotis Eustratiadis , Yixing Fan , Evangelos Kanoulas

Large Language Model (LLM)-based passage expansion has shown promise for enhancing first-stage retrieval, but often underperforms with dense retrievers due to semantic drift and misalignment with their pretrained semantic space. Beyond…

信息检索 · 计算机科学 2025-08-26 Huanwei Xu , Lin Xu , Liang Yuan

Modern approaches to enhancing Large Language Models' factual accuracy and knowledge utilization face a fundamental trade-off: non-parametric retrieval-augmented generation (RAG) provides flexible access to external knowledge but suffers…

计算与语言 · 计算机科学 2026-03-02 Rubin Wei , Jiaqi Cao , Jiarui Wang , Jushi Kai , Qipeng Guo , Bowen Zhou , Zhouhan Lin