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Multimodal large language models (MLLMs) have achieved strong performance on vision-language tasks, yet often suffer from inefficiencies due to redundant visual tokens. Existing token merging methods reduce sequence length but frequently…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Mouxiao Huang , Borui Jiang , Dehua Zheng , Hailin Hu , Kai Han , Xinghao Chen

Standard Byte-Pair Encoding (BPE) tokenization compresses text by pairing a learned token vocabulary with a detailed merge list. Recent work has shown that this merge list exposes a potential attack surface for extracting information about…

Computation and Language · Computer Science 2025-08-12 Tomohiro Sawada , Kartik Goyal

Vision-language Models (VLMs) have shown remarkable capabilities in advancing general artificial intelligence, yet the irrational encoding of visual positions persists in inhibiting the models' comprehensive perception performance across…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Zhanpeng Chen , Mingxiao Li , Ziyang Chen , Nan Du , Xiaolong Li , Yuexian Zou

In transformers, the positional encoding (PE) provides essential information that distinguishes the position and order amongst tokens in a sequence. Most prior investigations of PE effects on generalization were tailored to 1D input…

Machine Learning · Computer Science 2025-06-24 Takuya Ito , Luca Cocchi , Tim Klinger , Parikshit Ram , Murray Campbell , Luke Hearne

In the last decade, an impressive increase in software adaptions has led to a surge in log data production, making manual log analysis impractical and establishing the necessity for automated methods. Conversely, most automated analysis…

Software Engineering · Computer Science 2025-11-19 Shayan Hashemi , Mika Mäntylä

This paper investigates how LLMs encode inputs with typos. We hypothesize that specific neurons and attention heads recognize typos and fix them internally using local and global contexts. We introduce a method to identify typo neurons and…

Computation and Language · Computer Science 2025-02-28 Kohei Tsuji , Tatsuya Hiraoka , Yuchang Cheng , Eiji Aramaki , Tomoya Iwakura

This paper addresses the challenge of train-short-test-long (TSTL) scenarios in Large Language Models (LLMs) equipped with Rotary Position Embedding (RoPE), where models pre-trained on shorter sequences face difficulty with…

Computation and Language · Computer Science 2024-09-05 Suyuchen Wang , Ivan Kobyzev , Peng Lu , Mehdi Rezagholizadeh , Bang Liu

In-Context Learning (ICL) typically utilizes classification criteria from output probabilities of manually selected label tokens. However, we argue that such token-based classification criteria lead to suboptimal decision boundaries,…

Computation and Language · Computer Science 2025-02-06 Hakaze Cho , Yoshihiro Sakai , Mariko Kato , Kenshiro Tanaka , Akira Ishii , Naoya Inoue

Large Language Models (LLMs) have demonstrated exceptional performance in biochemical tasks, especially the molecule caption translation task, which aims to bridge the gap between molecules and natural language texts. However, previous…

Computation and Language · Computer Science 2025-04-08 Jiatong Li , Wei Liu , Zhihao Ding , Wenqi Fan , Yuqiang Li , Qing Li

Tokenization is the first step in modern neural language model pipelines where an input text is converted to a sequence of subword tokens. We introduce from first principles a finite-state transduction framework which can efficiently encode…

Computation and Language · Computer Science 2024-10-22 Marco Cognetta , Naoaki Okazaki

Large Language Models (LLMs) demonstrate impressive capabilities across various domains, including role-playing, creative writing, mathematical reasoning, and coding. Despite these advancements, LLMs still encounter challenges with length…

Computation and Language · Computer Science 2024-10-10 Zekun Wang , Feiyu Duan , Yibo Zhang , Wangchunshu Zhou , Ke Xu , Wenhao Huang , Jie Fu

While large language models (LLMs) are extensively used, there are raising concerns regarding privacy, security, and copyright due to their opaque training data, which brings the problem of detecting pre-training data on the table. Current…

Computation and Language · Computer Science 2024-08-01 Anqi Zhang , Chaofeng Wu

Recent advancements in image understanding have benefited from the extensive use of web image-text pairs. However, video understanding remains a challenge despite the availability of substantial web video-text data. This difficulty…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Wei Li , Hehe Fan , Yongkang Wong , Mohan Kankanhalli , Yi Yang

Position encoding (PE), an essential part of self-attention networks (SANs), is used to preserve the word order information for natural language processing tasks, generating fixed position indices for input sequences. However, in…

Computation and Language · Computer Science 2020-11-24 Liang Ding , Longyue Wang , Dacheng Tao

Large language models (LLMs), endowed with exceptional reasoning capabilities, are adept at discerning profound user interests from historical behaviors, thereby presenting a promising avenue for the advancement of recommendation systems.…

Information Retrieval · Computer Science 2024-12-19 Guanghan Li , Xun Zhang , Yufei Zhang , Yifan Yin , Guojun Yin , Wei Lin

Traditionally, Latent Dirichlet Allocation (LDA) ingests words in a collection of documents to discover their latent topics using word-document co-occurrences. However, it is unclear how to achieve the best results for languages without…

Computation and Language · Computer Science 2021-08-25 Jin Cheevaprawatdomrong , Alexandra Schofield , Attapol T. Rutherford

There is currently a significant gap between the performance of fine-tuned models and prompting approaches using Large Language Models (LLMs) on the challenging task of text-to-SQL, as evaluated on datasets such as Spider. To improve the…

Computation and Language · Computer Science 2023-11-06 Mohammadreza Pourreza , Davood Rafiei

Large language models(LLMs) excel at text generation and knowledge question-answering tasks, but they are prone to generating hallucinated content, severely limiting their application in high-risk domains. Current hallucination detection…

Computation and Language · Computer Science 2025-12-25 Shize Liang , Hongzhi Wang

While large language models (LLMs) have demonstrated remarkable performance on high-level semantic tasks, they often struggle with fine-grained, token-level understanding and structural reasoning--capabilities that are essential for…

Computation and Language · Computer Science 2025-08-08 Chenzhuo Zhao , Xinda Wang , Yue Huang , Junting Lu , Ziqian Liu

Efficient encoding and representation of large 3D molecular structures with high fidelity is critical for biomolecular design applications. Despite this, many representation learning approaches restrict themselves to modeling smaller…

Machine Learning · Computer Science 2025-04-10 Andrew Liu , Axel Elaldi , Nathan Russell , Olivia Viessmann