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We propose a new geometric method for measuring the quality of representations obtained from deep learning. Our approach, called Random Polytope Descriptor, provides an efficient description of data points based on the construction of…

Machine Learning · Computer Science 2021-02-16 Michael Joswig , Marek Kaluba , Lukas Ruff

This paper contributes to cross-lingual image annotation and retrieval in terms of data and baseline methods. We propose COCO-CN, a novel dataset enriching MS-COCO with manually written Chinese sentences and tags. For more effective…

Computation and Language · Computer Science 2019-01-16 Xirong Li , Chaoxi Xu , Xiaoxu Wang , Weiyu Lan , Zhengxiong Jia , Gang Yang , Jieping Xu

Web-based services often run randomized experiments to improve their products. A popular way to run these experiments is to use geographical regions as units of experimentation, since this does not require tracking of individual users or…

Social and Information Networks · Computer Science 2019-02-19 David Rolnick , Kevin Aydin , Jean Pouget-Abadie , Shahab Kamali , Vahab Mirrokni , Amir Najmi

We systematically investigate geometric patterns in Chinese character embeddings using PHATE manifold analysis. Through cross-validation across seven embedding models and eight dimensionality reduction methods, we observe clustering…

Computation and Language · Computer Science 2025-10-03 Wen G. Gong

Large vision-language models have achieved remarkable progress in visual reasoning, yet most existing systems rely on single-step or text-only reasoning, limiting their ability to iteratively refine understanding across multiple visual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Wenfang Sun , Hao Chen , Yingjun Du , Yefeng Zheng , Cees G. M. Snoek

Retrieval-Augmented Generation systems depend on retrieving semantically relevant document chunks to support accurate, grounded outputs from large language models. In structured and repetitive corpora such as regulatory filings, chunk…

Information Retrieval · Computer Science 2026-01-21 Raquib Bin Yousuf , Shengzhe Xu , Mandar Sharma , Andrew Neeser , Chris Latimer , Naren Ramakrishnan

Unsupervised hashing methods have attracted widespread attention with the explosive growth of large-scale data, which can greatly reduce storage and computation by learning compact binary codes. Existing unsupervised hashing methods attempt…

Computer Vision and Pattern Recognition · Computer Science 2023-01-09 Huibing Wang , Mingze Yao , Guangqi Jiang , Zetian Mi , Xianping Fu

Geolocation, the task of identifying the geographic location of an image, requires abundant world knowledge and complex reasoning abilities. Though advanced large multimodal models (LMMs) have shown superior aforementioned capabilities,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Yushuo Zheng , Huiyu Duan , Zicheng Zhang , Xiaohong Liu , Xiongkuo Min

Neural ranking models have shown outstanding performance across a variety of tasks, such as document retrieval, re-ranking, question answering and conversational retrieval. However, the inner decision process of these models remains largely…

Information Retrieval · Computer Science 2025-10-09 Cile van Marken , Roxana Petcu

In this work, we address the problem of cross-view geo-localization, which estimates the geospatial location of a street view image by matching it with a database of geo-tagged aerial images. The cross-view matching task is extremely…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Hongji Yang , Xiufan Lu , Yingying Zhu

Due to the advances in mobile computing and multimedia techniques, there are vast amount of multimedia data with geographical information collected in multifarious applications. In this paper, we propose a novel type of image search named…

Multimedia · Computer Science 2018-06-05 Jun Long , Lei Zhu , Chengyuan Zhang , Zhan Yang , Yunwu Lin , Ruipeng Chen

Chinese word segmentation is especially fragile in non-standard text, where language learner errors and other character-level divergences disrupt the word boundaries assumed by downstream annotation and evaluation. This paper formulates…

Computation and Language · Computer Science 2026-05-28 Lusha Wang , Yuchen Li , Su Yuan , Jungyeul Park

This paper describes our system, which placed third in the Multilingual Track (subtask 11), fourth in the Code-Mixed Track (subtask 12), and seventh in the Chinese Track (subtask 9) in the SemEval 2022 Task 11: MultiCoNER Multilingual…

Computation and Language · Computer Science 2022-04-18 Weichao Gan , Yuanping Lin , Guangbo Yu , Guimin Chen , Qian Ye

Sequence-to-sequence neural networks have recently achieved great success in abstractive summarization, especially through fine-tuning large pre-trained language models on the downstream dataset. These models are typically decoded with beam…

Computation and Language · Computer Science 2023-05-29 Mathieu Ravaut , Shafiq Joty , Nancy F. Chen

Current speech enhancement (SE) research has largely neglected channel attention and spatial attention, and encoder-decoder architecture-based networks have not adequately considered how to provide efficient inputs to the intermediate…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-12 Junyu Wang

Retrieval and recommendation are two essential tasks in modern search tools. This paper introduces a novel retrieval-reranking framework leveraging Large Language Models (LLMs) to enhance the spatiotemporal and semantic associated mining…

Information Retrieval · Computer Science 2024-11-21 Yuanyuan Tian , Wenwen Li , Lei Hu , Xiao Chen , Michael Brook , Michael Brubaker , Fan Zhang , Anna K. Liljedahl

Land use and land cover mapping from Earth Observation (EO) data is a critical tool for sustainable land and resource management. While advanced machine learning and deep learning algorithms excel at analyzing EO imagery data, they often…

Computer Vision and Pattern Recognition · Computer Science 2025-04-18 Babak Ghassemi , Cassio Fraga-Dantas , Raffaele Gaetano , Dino Ienco , Omid Ghorbanzadeh , Emma Izquierdo-Verdiguier , Francesco Vuolo

With the rapid development of information technology, online platforms (e.g., news portals and social media) generate enormous web information every moment. Therefore, it is crucial to extract structured representations of events from…

Computation and Language · Computer Science 2021-12-21 Jiangwei Liu , Jingshu Zhang , Xiaohong Huang , Liangyu Min

We introduce GeoBuildBench, a benchmark designed to evaluate whether large language models and multimodal agents can ground informal natural-language plane geometry problems into executable geometric constructions. Unlike existing geometry…

Computation and Language · Computer Science 2026-05-14 Jinwoong Kim , Rui Yang , Huishuai Zhang

Empirical methods in geoparsing have thus far lacked a standard evaluation framework describing the task, metrics and data used to compare state-of-the-art systems. Evaluation is further made inconsistent, even unrepresentative of…

Computation and Language · Computer Science 2019-09-17 Milan Gritta , Mohammad Taher Pilehvar , Nigel Collier