Zero- and Few-Shot Named-Entity Recognition: Case Study and Dataset in the Crime Domain (CrimeNER)

Fuente: arXiv
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Main Authors: Lopez-Duran, Miguel, Fierrez, Julian, Morales, Aythami, DeAlcala, Daniel, Mancera, Gonzalo, Irigoyen, Javier, Tolosana, Ruben, Delgado, Oscar, Jurado, Francisco, Ortigosa, Alvaro
Format: Preprint
Published: 2026
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author Lopez-Duran, Miguel
Fierrez, Julian
Morales, Aythami
DeAlcala, Daniel
Mancera, Gonzalo
Irigoyen, Javier
Tolosana, Ruben
Delgado, Oscar
Jurado, Francisco
Ortigosa, Alvaro
author_facet Lopez-Duran, Miguel
Fierrez, Julian
Morales, Aythami
DeAlcala, Daniel
Mancera, Gonzalo
Irigoyen, Javier
Tolosana, Ruben
Delgado, Oscar
Jurado, Francisco
Ortigosa, Alvaro
contents The extraction of critical information from crime-related documents is a crucial task for law enforcement agencies. Named-Entity Recognition (NER) can perform this task in extracting information about the crime, the criminal, or law enforcement agencies involved. However, there is a considerable lack of adequately annotated data on general real-world crime scenarios. To address this issue, we present CrimeNER, a case-study of Crime-related zero- and Few-Shot NER, and a general Crime-related Named-Entity Recognition database (CrimeNERdb) consisting of more than 1.5k annotated documents for the NER task extracted from public reports on terrorist attacks and the U.S. Department of Justice's press notes. We define 5 types of coarse crime entity and a total of 22 types of fine-grained entity. We address the quality of the case-study and the annotated data with experiments on Zero and Few-Shot settings with State-of-the-Art NER models as well as generalist and commonly used Large Language Models.
format Preprint
id arxiv_https___arxiv_org_abs_2603_02150
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Zero- and Few-Shot Named-Entity Recognition: Case Study and Dataset in the Crime Domain (CrimeNER)
Lopez-Duran, Miguel
Fierrez, Julian
Morales, Aythami
DeAlcala, Daniel
Mancera, Gonzalo
Irigoyen, Javier
Tolosana, Ruben
Delgado, Oscar
Jurado, Francisco
Ortigosa, Alvaro
Computation and Language
Artificial Intelligence
Databases
The extraction of critical information from crime-related documents is a crucial task for law enforcement agencies. Named-Entity Recognition (NER) can perform this task in extracting information about the crime, the criminal, or law enforcement agencies involved. However, there is a considerable lack of adequately annotated data on general real-world crime scenarios. To address this issue, we present CrimeNER, a case-study of Crime-related zero- and Few-Shot NER, and a general Crime-related Named-Entity Recognition database (CrimeNERdb) consisting of more than 1.5k annotated documents for the NER task extracted from public reports on terrorist attacks and the U.S. Department of Justice's press notes. We define 5 types of coarse crime entity and a total of 22 types of fine-grained entity. We address the quality of the case-study and the annotated data with experiments on Zero and Few-Shot settings with State-of-the-Art NER models as well as generalist and commonly used Large Language Models.
title Zero- and Few-Shot Named-Entity Recognition: Case Study and Dataset in the Crime Domain (CrimeNER)
topic Computation and Language
Artificial Intelligence
Databases
url https://arxiv.org/abs/2603.02150