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Huge challenges exist for old landslide detection because their morphology features have been partially or strongly transformed over a long time and have little difference from their surrounding. Besides, small-sample problem also restrict…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Zili Lu , Yuexing Peng , Wei Li , Junchuan Yu , Daqing Ge , Wei Xiang

Lexical Semantic Change Detection (LSCD) is a complex, lemma-level task, which is usually operationalized based on two subsequently applied usage-level tasks: First, Word-in-Context (WiC) labels are derived for pairs of usages. Then, these…

计算与语言 · 计算机科学 2026-05-26 Dominik Schlechtweg , Sachin Yadav , Jonas Kuhn , Nikolay Arefyev

We consider probabilistic topic models and more recent word embedding techniques from a perspective of learning hidden semantic representations. Inspired by a striking similarity of the two approaches, we merge them and learn probabilistic…

计算与语言 · 计算机科学 2017-11-15 Anna Potapenko , Artem Popov , Konstantin Vorontsov

Lexical Semantic Change detection, i.e., the task of identifying words that change meaning over time, is a very active research area, with applications in NLP, lexicography, and linguistics. Evaluation is currently the most pressing problem…

计算与语言 · 计算机科学 2020-09-01 Dominik Schlechtweg , Barbara McGillivray , Simon Hengchen , Haim Dubossarsky , Nina Tahmasebi

Existing semantic segmentation approaches either aim to improve the object's inner consistency by modeling the global context, or refine objects detail along their boundaries by multi-scale feature fusion. In this paper, a new paradigm for…

计算机视觉与模式识别 · 计算机科学 2020-08-19 Xiangtai Li , Xia Li , Li Zhang , Guangliang Cheng , Jianping Shi , Zhouchen Lin , Shaohua Tan , Yunhai Tong

Standard fine-tuning of transformer models on causal reasoning tasks leads to catastrophic model collapse, where models learn trivial solutions such as always predicting "Yes" or "No" regardless of input structure. We demonstrate that…

机器学习 · 计算机科学 2026-05-08 Pratik Deshmukh , Atirek Gupta

Remote sensing (RS) change detection is essential for interpreting surface dynamics. Semantic change detection (SCD) further enables pixel-level understanding of multi-class transitions, yet remains sensitive to pseudo-changes induced by…

计算机视觉与模式识别 · 计算机科学 2026-04-30 Hengtong Shen , Li Yan , Hong Xie , Yaxuan Wei , Xinhao Li , Wenfei Shen , Peixian Lv , Fei Tan

Semantic Textual Similarity (STS) is a crucial component of many Natural Language Processing (NLP) applications. However, existing approaches typically reduce semantic nuances to a single score, limiting interpretability. To address this,…

计算与语言 · 计算机科学 2026-05-15 Diego Miguel Lozano , Daryna Dementieva , Alexander Fraser

CLIP (Contrastive Language-Image Pre-training) is a very recent multi-modal model that jointly learns representations of images and texts. The model is trained on a massive amount of English data and shows impressive performance on…

计算与语言 · 计算机科学 2021-08-20 Federico Bianchi , Giuseppe Attanasio , Raphael Pisoni , Silvia Terragni , Gabriele Sarti , Sri Lakshmi

Network representation learning, as an approach to learn low dimensional representations of vertices, has attracted considerable research attention recently. It has been proven extremely useful in many machine learning tasks over large…

机器学习 · 计算机科学 2019-06-11 Hao Peng , Jianxin Li , Hao Yan , Qiran Gong , Senzhang Wang , Lin Liu , Lihong Wang , Xiang Ren

Our languages are in constant flux driven by external factors such as cultural, societal and technological changes, as well as by only partially understood internal motivations. Words acquire new meanings and lose old senses, new words are…

计算与语言 · 计算机科学 2019-03-14 Nina Tahmasebi , Lars Borin , Adam Jatowt

Training dense passage representations via contrastive learning has been shown effective for Open-Domain Passage Retrieval (ODPR). Existing studies focus on further optimizing by improving negative sampling strategy or extra pretraining.…

计算与语言 · 计算机科学 2022-03-08 Bohong Wu , Zhuosheng Zhang , Jinyuan Wang , Hai Zhao

Domain adaptation for semantic segmentation aims to improve the model performance in the presence of a distribution shift between source and target domain. Leveraging the supervision from auxiliary tasks~(such as depth estimation) has the…

计算机视觉与模式识别 · 计算机科学 2021-08-25 Qin Wang , Dengxin Dai , Lukas Hoyer , Luc Van Gool , Olga Fink

X-ray computed tomography (CT) is widely used in medical imaging, with sparse-view reconstruction offering an effective way to reduce radiation dose. However, ill-posed conditions often result in severe streak artifacts. Recent advances in…

图像与视频处理 · 电气工程与系统科学 2025-12-30 Jiashu Dong , Jiabing Xiang , Lisheng Geng , Suqing Tian , Wei Zhao

Many methods of semantic image segmentation have borrowed the success of open compound domain adaptation. They minimize the style gap between the images of source and target domains, more easily predicting the accurate pseudo annotations…

计算机视觉与模式识别 · 计算机科学 2023-09-29 Tingliang Feng , Hao Shi , Xueyang Liu , Wei Feng , Liang Wan , Yanlin Zhou , Di Lin

In this work we analyze the performances of two of the most used word embeddings algorithms, skip-gram and continuous bag of words on Italian language. These algorithms have many hyper-parameter that have to be carefully tuned in order to…

计算与语言 · 计算机科学 2017-12-01 Rocco Tripodi , Stefano Li Pira

With the rapid advancement of image generation techniques, robust forgery detection has become increasingly imperative to ensure the trustworthiness of digital media. Recent research indicates that the learned semantic concepts of…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Ziye Wang , Minghang Yu , Chunyan Xu , Zhen Cui

Supervised deep learning models depend on massive labeled data. Unfortunately, it is time-consuming and labor-intensive to collect and annotate bitemporal samples containing desired changes. Transfer learning from pre-trained models is…

计算机视觉与模式识别 · 计算机科学 2022-09-13 Hao Chen , Wenyuan Li , Song Chen , Zhenwei Shi

The computational study of lexical semantic change (LSC) has taken off in the past few years and we are seeing increasing interest in the field, from both computational sciences and linguistics. Most of the research so far has focused on…

计算与语言 · 计算机科学 2021-01-20 Simon Hengchen , Nina Tahmasebi , Dominik Schlechtweg , Haim Dubossarsky

Remote sensing image segmentation faces persistent challenges in distinguishing morphologically similar categories and adapting to diverse scene variations. While existing methods rely on implicit representation learning paradigms, they…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Xuechao Zou , Yue Li , Shun Zhang , Kai Li , Shiying Wang , Pin Tao , Junliang Xing , Congyan Lang