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With the advent of word embeddings, lexicons are no longer fully utilized for sentiment analysis although they still provide important features in the traditional setting. This paper introduces a novel approach to sentiment analysis that…

Computation and Language · Computer Science 2017-08-24 Bonggun Shin , Timothy Lee , Jinho D. Choi

Sentence embeddings are crucial in measuring semantic similarity. Most recent studies employed large language models (LLMs) to learn sentence embeddings. Existing LLMs mainly adopted autoregressive architecture without explicit backward…

Computation and Language · Computer Science 2024-03-15 Xianming Li , Jing Li

Vision Language Action models (VLAs) trained with policy-based reinforcement learning (RL) encode complex behaviors without explicitly modeling environmental dynamics. However, it remains unclear whether VLAs implicitly learn world models,…

Machine Learning · Computer Science 2025-09-30 Marco Molinari , Leonardo Nevali , Saharsha Navani , Omar G. Younis

Neural attention, especially the self-attention made popular by the Transformer, has become the workhorse of state-of-the-art natural language processing (NLP) models. Very recent work suggests that the self-attention in the Transformer…

Computation and Language · Computer Science 2020-10-16 Zhengxuan Wu , Thanh-Son Nguyen , Desmond C. Ong

Large Vision-Language Models (LVLMs) excel in visual understanding and reasoning, but the excessive visual tokens lead to high inference costs. Although recent token reduction methods mitigate this issue, they mainly target single-turn…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Yi Wang , Haofei Zhang , Qihan Huang , Anda Cao , Gongfan Fang , Wei Wang , Xuan Jin , Jie Song , Mingli Song , Xinchao Wang

Understanding the emotions in a dialogue usually requires external knowledge to accurately understand the contents. As the LLMs become more and more powerful, we do not want to settle on the limited ability of the pre-trained language…

Computation and Language · Computer Science 2025-10-03 Han Zhang , Yu Lu , Liyun Zhang , Dian Ding , Dinghua Zhao , Yi-Chao Chen , Ye Wu , Guangtao Xue

Large Language Models (LLMs) have achieved impressive performance across diverse domains but remain inefficient during the autoregressive decoding phase. Unlike the prefill stage, which employs compute-bound GEMM operations, decoding…

Hardware Architecture · Computer Science 2026-05-26 Bowen Duan , Cong Guo , Chiyue Wei , Haoxuan Shan , Yuzhe Fu , Xinhua Chen , Yifan Xu , Ziyue Zhang , Changchun Zhou , Hai Li , Yiran Chen

Aligning Large Language Models (LLMs) with human values has attracted increasing attention since it provides clarity, transparency, and the ability to adapt to evolving scenarios. In this paper, we introduce a Controlled Value Vector…

Computation and Language · Computer Science 2025-07-16 Haoran Jin , Meng Li , Xiting Wang , Zhihao Xu , Minlie Huang , Yantao Jia , Defu Lian

In recent years, Large Language Models (LLMs) have garnered significant attention from the research community due to their exceptional performance and generalization capabilities. In this paper, we introduce a novel method for…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-21 Egor Lakomkin , Chunyang Wu , Yassir Fathullah , Ozlem Kalinli , Michael L. Seltzer , Christian Fuegen

Vision Language Models (VLMs) excel at identifying and describing objects but often fail at spatial reasoning. We study why VLMs, such as LLaVA, underutilize spatial cues despite having positional encodings and spatially rich vision encoder…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Jianing Qi , Jiawei Liu , Hao Tang , Zhigang Zhu

Large language models (LLMs) have exhibited impressive competence in various tasks, but their internal mechanisms on mathematical problems are still under-explored. In this paper, we study a fundamental question: how language models encode…

Computation and Language · Computer Science 2024-11-15 Fangwei Zhu , Damai Dai , Zhifang Sui

We propose an innovative token representation and update method in a new ultra-small language model: the Wave network. Specifically, we use a complex vector to represent each token, encoding both global and local semantics of the input…

Computation and Language · Computer Science 2024-11-12 Xin Zhang , Victor S. Sheng

Self-supervised learning (SSL) speech representation models, trained on large speech corpora, have demonstrated effectiveness in extracting hierarchical speech embeddings through multiple transformer layers. However, the behavior of these…

Computation and Language · Computer Science 2024-06-18 Zihan Pan , Tianchi Liu , Hardik B. Sailor , Qiongqiong Wang

We present an approach that combines appearance and semantic information for 2D image-based localization (2D-VL) across large perceptual changes and time lags. Compared to appearance features, the semantic layout of a scene is generally…

Computer Vision and Pattern Recognition · Computer Science 2019-07-04 Zachary Seymour , Karan Sikka , Han-Pang Chiu , Supun Samarasekera , Rakesh Kumar

Dense vector representations for sentences made significant progress in recent years as can be seen on sentence similarity tasks. Real-world phrase retrieval applications, on the other hand, still encounter challenges for effective use of…

Computation and Language · Computer Science 2024-05-14 Eyal Orbach , Lev Haikin , Nelly David , Avi Faizakof

Human action recognition often struggles with deep semantic understanding, complex contextual information, and fine-grained distinction, limitations that traditional methods frequently encounter when dealing with diverse video data.…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Jingwei Peng , Zhixuan Qiu , Boyu Jin , Surasakdi Siripong

Vector embeddings derived from large language models (LLMs) show promise in capturing latent information from the literature. Interestingly, these can be integrated into material embeddings, potentially useful for data-driven predictions of…

Computation and Language · Computer Science 2024-09-19 Luke P. J. Gilligan , Matteo Cobelli , Hasan M. Sayeed , Taylor D. Sparks , Stefano Sanvito

Large language models (LLMs) have achieved state-of-the-art results in many natural language processing tasks. They have also demonstrated ability to adapt well to different tasks through zero-shot or few-shot settings. With the capability…

Computer Vision and Pattern Recognition · Computer Science 2023-09-28 Alvin De Jun Tan , Bingquan Shen

Computer vision has benefited from initializing multiple deep layers with weights pretrained on large supervised training sets like ImageNet. Natural language processing (NLP) typically sees initialization of only the lowest layer of deep…

Computation and Language · Computer Science 2018-06-21 Bryan McCann , James Bradbury , Caiming Xiong , Richard Socher

Semantically meaningful sentence embeddings are important for numerous tasks in natural language processing. To obtain such embeddings, recent studies explored the idea of utilizing synthetically generated data from pretrained language…

Computation and Language · Computer Science 2022-08-31 Taehee Kim , ChaeHun Park , Jimin Hong , Radhika Dua , Edward Choi , Jaegul Choo