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A vast amount of geographic information exists in natural language texts, such as tweets and news. Extracting geographic information from texts is called Geoparsing, which includes two subtasks: toponym recognition and toponym…

Information Retrieval · Computer Science 2022-09-20 Xuke Hu , Yeran Sun , Jens Kersten , Zhiyong Zhou , Friederike Klan , Hongchao Fan

Toponym Resolution, the task of assigning a location mention in a document to a geographic referent (i.e., latitude/longitude), plays a pivotal role in analyzing location-aware content. However, the ambiguities of natural language and a…

Information Retrieval · Computer Science 2018-05-10 Ehsan Kamalloo , Davood Rafiei

Recognizing toponyms and resolving them to their real-world referents is required for providing advanced semantic access to textual data. This process is often hindered by the high degree of variation in toponyms. Candidate selection is the…

Computation and Language · Computer Science 2020-09-23 Mariona Coll Ardanuy , Kasra Hosseini , Katherine McDonough , Amrey Krause , Daniel van Strien , Federico Nanni

Chinese geographic re-ranking task aims to find the most relevant addresses among retrieved candidates, which is crucial for location-related services such as navigation maps. Unlike the general sentences, geographic contexts are closely…

Computation and Language · Computer Science 2024-02-05 Yong Cao , Ruixue Ding , Boli Chen , Xianzhi Li , Min Chen , Daniel Hershcovich , Pengjun Xie , Fei Huang

Geolocation, the task of identifying an image's location, requires complex reasoning and is crucial for navigation, monitoring, and cultural preservation. However, current methods often produce coarse, imprecise, and non-interpretable…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Zirui Song , Jingpu Yang , Yuan Huang , Jonathan Tonglet , Zeyu Zhang , Tao Cheng , Meng Fang , Iryna Gurevych , Xiuying Chen

High-quality geometric diagram generation presents both a challenge and an opportunity: it demands strict spatial accuracy while offering well-defined constraints to guide generation. Inspired by recent advances in geometry problem solving…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Xiaojing Wei , Ting Zhang , Wei He , Jingdong Wang , Hua Huang

Mordecai3 is a new end-to-end text geoparser and event geolocation system. The system performs toponym resolution using a new neural ranking model to resolve a place name extracted from a document to its entry in the Geonames gazetteer. It…

Computation and Language · Computer Science 2023-03-27 Andrew Halterman

Geocoding is the task of linking a location reference to an actual geographic location and is essential for many downstream analyses of unstructured text. In this paper, we explore the challenging setting of geocoding compositional location…

Computation and Language · Computer Science 2026-01-27 Tessa Masis , Brendan O'Connor

We study the problem of resolving a perhaps misspelled address of a location into geographic coordinates of latitude and longitude. Our data structure solves this problem within a few milliseconds even for misspelled and fragmentary…

Information Retrieval · Computer Science 2011-02-17 Christian Jung , Daniel Karch , Sebastian Knopp , Dennis Luxen , Peter Sanders

Geoparsing is an important task in geographic information retrieval. A geoparsing system, known as a geoparser, takes some texts as the input and outputs the recognized place mentions and their location coordinates. In June 2019, a…

Computation and Language · Computer Science 2020-07-16 Jimin Wang , Yingjie Hu

In human reading and communication, individuals tend to engage in geospatial reasoning, which involves recognizing geographic entities and making informed inferences about their interrelationships. To mimic such cognitive process, current…

Computation and Language · Computer Science 2024-08-22 Yibo Yan , Joey Lee

Image geolocalization, the task of determining an image's geographic origin, poses significant challenges, largely due to visual similarities across disparate locations and the large search space. To address these issues, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Narges Ghasemi , Amir Ziashahabi , Salman Avestimehr , Cyrus Shahabi

Geocoding involves automatic extraction of location coordinates of incidents reported in news articles, and can be used for epidemic intelligence or disaster management. This paper introduces Retrieval-Augmented Coordinate Capture Of Online…

Computation and Language · Computer Science 2025-01-22 Jonathan Lin , Aditya Joshi , Hye-young Paik , Tri Dung Doung , Deepti Gurdasani

The placement of normalization layers, specifically Pre-Norm and Post-Norm, remains an open question in Transformer architecture design. In this work, we rethink these approaches through the lens of manifold optimization, interpreting the…

This paper presents GeoAgent, a model capable of reasoning closely with humans and deriving fine-grained address conclusions. Previous RL-based methods have achieved breakthroughs in performance and interpretability but still remain…

Artificial Intelligence · Computer Science 2026-02-16 Modi Jin , Yiming Zhang , Boyuan Sun , Dingwen Zhang , MingMing Cheng , Qibin Hou

Worldwide image geolocalization-the task of predicting GPS coordinates from images taken anywhere on Earth-poses a fundamental challenge due to the vast diversity in visual content across regions. While recent approaches adopt a two-stage…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Pengyue Jia , Seongheon Park , Song Gao , Xiangyu Zhao , Sharon Li

In transformer architectures, position encoding primarily provides a sense of sequence for input tokens. While the original transformer paper's method has shown satisfactory results in general language processing tasks, there have been new…

Computation and Language · Computer Science 2024-03-26 Eren Unlu

Location tagging, also known as geotagging or geolocation, is the process of assigning geographical coordinates to input data. In this paper we present an algorithm for location tagging of textual documents. Our approach makes use of…

Artificial Intelligence · Computer Science 2016-01-25 Shawn Brunsting , Hans De Sterck , Remco Dolman , Teun van Sprundel

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

We demonstrate how language can improve geolocation: the task of predicting the location where an image was taken. Here we study explicit knowledge from human-written guidebooks that describe the salient and class-discriminative visual…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Grace Luo , Giscard Biamby , Trevor Darrell , Daniel Fried , Anna Rohrbach
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