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Replacing static word embeddings with contextualized word representations has yielded significant improvements on many NLP tasks. However, just how contextual are the contextualized representations produced by models such as ELMo and BERT?…

计算与语言 · 计算机科学 2019-09-04 Kawin Ethayarajh

Natural language exhibits statistical dependencies at a wide range of scales. For instance, the mutual information between words in natural language decays like a power law with the temporal lag between them. However, many statistical…

计算与语言 · 计算机科学 2019-12-17 Aakash Sarkar , Marc Howard

Semantic representations of words have been successfully extracted from unlabeled corpuses using neural network models like word2vec. These representations are generally high quality and are computationally inexpensive to train, making them…

计算与语言 · 计算机科学 2019-10-24 Raj Patel , Carlotta Domeniconi

We address the problem of phrase grounding by lear ing a multi-level common semantic space shared by the textual and visual modalities. We exploit multiple levels of feature maps of a Deep Convolutional Neural Network, as well as…

计算机视觉与模式识别 · 计算机科学 2019-05-31 Hassan Akbari , Svebor Karaman , Surabhi Bhargava , Brian Chen , Carl Vondrick , Shih-Fu Chang

Human language is grounded on multimodal knowledge including visual knowledge like colors, sizes, and shapes. However, current large-scale pre-trained language models rely on text-only self-supervised training with massive text data, which…

计算与语言 · 计算机科学 2023-02-28 Weizhi Wang , Li Dong , Hao Cheng , Haoyu Song , Xiaodong Liu , Xifeng Yan , Jianfeng Gao , Furu Wei

We study the problem of grounding distributional representations of texts on the visual domain, namely visual-semantic embeddings (VSE for short). Begin with an insightful adversarial attack on VSE embeddings, we show the limitation of…

计算与语言 · 计算机科学 2018-06-28 Haoyue Shi , Jiayuan Mao , Tete Xiao , Yuning Jiang , Jian Sun

Visual Word Sense Disambiguation (VWSD) is a multi-modal task that aims to select, among a batch of candidate images, the one that best entails the target word's meaning within a limited context. In this paper, we propose a multi-modal…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Zhuohao Yin , Xin Huang

Word vector representations open up new opportunities to extract useful information from unstructured text. Defining a word as a vector made it easy for the machine learning algorithms to understand a text and extract information from. Word…

计算与语言 · 计算机科学 2021-05-19 Mohammed Ibrahim , Susan Gauch , Tyler Gerth , Brandon Cox

Modern Large Language Model (LLM)-based programming agents often rely on test execution feedback to refine their generated code. These tests are synthetically generated by LLMs. However, LLMs may produce invalid or hallucinated test cases,…

Zero-shot learning (ZSL) highly depends on a good semantic embedding to connect the seen and unseen classes. Recently, distributed word embeddings (DWE) pre-trained from large text corpus have become a popular choice to draw such a…

计算机视觉与模式识别 · 计算机科学 2017-07-19 Ruizhi Qiao , Lingqiao Liu , Chunhua Shen , Anton van den Hengel

Modeling semantic information is helpful for scene text recognition. In this work, we propose to model semantic and visual information jointly with a Visual-Semantic Transformer (VST). The VST first explicitly extracts primary semantic…

计算机视觉与模式识别 · 计算机科学 2021-12-03 Xin Tang , Yongquan Lai , Ying Liu , Yuanyuan Fu , Rui Fang

Capturing spatial relationships from visual inputs is a cornerstone of human-like general intelligence. Several previous studies have tried to enhance the spatial awareness of Vision-Language Models (VLMs) by adding extra expert encoders,…

计算机视觉与模式识别 · 计算机科学 2025-11-10 Rui Yang , Ziyu Zhu , Yanwei Li , Jingjia Huang , Shen Yan , Siyuan Zhou , Zhe Liu , Xiangtai Li , Shuangye Li , Wenqian Wang , Yi Lin , Hengshuang Zhao

Traditional Semantic Table Interpretation (STI) methods rely primarily on the underlying table data to create semantic annotations. This year's SemTab challenge introduced the ``Metadata to KG'' track, which focuses on performing STI by…

计算与语言 · 计算机科学 2024-09-24 Margherita Martorana , Xueli Pan , Benno Kruit , Tobias Kuhn , Jacco van Ossenbruggen

Understanding the inner workings of neural embeddings, particularly in models such as BERT, remains a challenge because of their high-dimensional and opaque nature. This paper proposes a framework for uncovering the specific dimensions of…

计算与语言 · 计算机科学 2025-05-06 Saniya Karwa , Navpreet Singh

Saliency maps can explain a neural model's predictions by identifying important input features. They are difficult to interpret for laypeople, especially for instances with many features. In order to make them more accessible, we formalize…

In this study, we present our methodology for two tasks: the Emotional Mimicry Intensity (EMI) Estimation Challenge and the Behavioural Ambivalence/Hesitancy (BAH) Recognition Challenge, both conducted as part of the 8th Workshop and…

计算机视觉与模式识别 · 计算机科学 2025-04-21 Tobias Hallmen , Robin-Nico Kampa , Fabian Deuser , Norbert Oswald , Elisabeth André

State-of-the-art large language models (LLMs) are now claiming remarkable supported context lengths of 256k or even more. In contrast, the average context lengths of mainstream benchmarks are insufficient (5k-21k), and they suffer from…

计算与语言 · 计算机科学 2025-10-23 Tao Yuan , Xuefei Ning , Dong Zhou , Zhijie Yang , Shiyao Li , Minghui Zhuang , Zheyue Tan , Zhuyu Yao , Dahua Lin , Boxun Li , Guohao Dai , Shengen Yan , Yu Wang

This research introduces the Multilevel Embedding Association Test (ML-EAT), a method designed for interpretable and transparent measurement of intrinsic bias in language technologies. The ML-EAT addresses issues of ambiguity and difficulty…

计算与语言 · 计算机科学 2024-08-29 Robert Wolfe , Alexis Hiniker , Bill Howe

One of the long-standing challenges in lexical semantics consists in learning representations of words which reflect their semantic properties. The remarkable success of word embeddings for this purpose suggests that high-quality…

计算与语言 · 计算机科学 2021-06-16 Yixiao Wang , Zied Bouraoui , Luis Espinosa Anke , Steven Schockaert

Word embedding, a high-dimensional (HD) numerical representation of words generated by machine learning models, has been used for different natural language processing tasks, e.g., translation between two languages. Recently, there has been…

人机交互 · 计算机科学 2024-03-26 Haoyu Li , Junpeng Wang , Yan Zheng , Liang Wang , Wei Zhang , Han-Wei Shen