expansion strategy
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- Information Technology > Artificial Intelligence > Machine Learning (1.00)
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- Information Technology > Artificial Intelligence > Representation & Reasoning > Uncertainty (0.68)
Contextual Augmentation for Entity Linking using Large Language Models
Vollmers, Daniel, Zahera, Hamada M., Moussallem, Diego, Ngomo, Axel-Cyrille Ngonga
Entity Linking involves detecting and linking entity mentions in natural language texts to a knowledge graph. Traditional methods use a two-step process with separate models for entity recognition and disambiguation, which can be computationally intensive and less effective. We propose a fine-tuned model that jointly integrates entity recognition and disambiguation in a unified framework. Furthermore, our approach leverages large language models to enrich the context of entity mentions, yielding better performance in entity disambiguation. We evaluated our approach on benchmark datasets and compared with several baselines. The evaluation results show that our approach achieves state-of-the-art performance on out-of-domain datasets.
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- Europe > United Kingdom > Scotland > City of Edinburgh > Edinburgh (0.04)
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- North America > Canada > British Columbia > Metro Vancouver Regional District > Vancouver (0.04)
- Europe > Sweden > Stockholm > Stockholm (0.04)
- Oceania > Australia (0.14)
- North America > Canada > British Columbia > Vancouver (0.04)
- Europe > Spain > Andalusia > Cádiz Province > Cadiz (0.04)
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- Information Technology > Artificial Intelligence > Cognitive Science > Problem Solving (0.73)
- Information Technology > Artificial Intelligence > Representation & Reasoning > Uncertainty (0.68)
Geo-Semantic-Parsing: AI-powered geoparsing by traversing semantic knowledge graphs
Nizzoli, Leonardo, Avvenuti, Marco, Tesconi, Maurizio, Cresci, Stefano
Online Social Networks (OSN) are privileged observation channels for understanding the geospatial facets of many real-world phenomena [1]. Unfortunately, in most cases OSN content lacks explicit and structured geographic information, as in the case of Twitter, where only a minimal fraction (1% to 4%) of messages are natively geotagged [2]. This shortage of explicit geographic information drastically limits the exploitation of OSN data in geospatial Decision Support Systems (DSS) [3]. Conversely, the prompt availability of geotagged content would empower existing systems and would open up the possibility to develop new and better geospatial services and applications [4, 5]. As a practical example of this kind, several social media-based systems have been proposed in recent years for mapping and visualizing situational information in the aftermath of mass disasters - a task dubbed as crisis mapping - in an effort to augment emergency response [6, 7]. These systems, however, demand geotagged data to be placed on crisis maps, which in turn imposes to perform the geoparsing task on the majority of social media content. Explicit geographic information is not only needed in early warning [8, 9] and emergency response systems [10, 11, 12, 13, 14], but also in systems and applications for improving event promotion [15, 16], touristic planning [17, 18, 19], healthcare accessibility [20], news aggregation [21] Post-print of the article published in Decision Support Systems 136, 2020. Please refer to the published version: doi.org/10.1016/j.dss.2020.113346
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