DeepJSONEval: Benchmarking Complex Nested JSON Data Mining for Large Language Models

Fuente: arXiv
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Autores principales: Zhou, Zhicheng, Li, Jing, Qiu, Suming, Huang, Junjie, Qiu, Linyuan, Sun, Zhijie
Formato: Preprint
Publicado: 2025
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author Zhou, Zhicheng
Li, Jing
Qiu, Suming
Huang, Junjie
Qiu, Linyuan
Sun, Zhijie
author_facet Zhou, Zhicheng
Li, Jing
Qiu, Suming
Huang, Junjie
Qiu, Linyuan
Sun, Zhijie
contents The internet is saturated with low-density, high-redundancy information, such as social media comments, repetitive news, and lengthy discussions, making it difficult to extract valuable insights efficiently. Multi-layer nested JSON structures provide an effective solution by compressing such information into semantically rich, hierarchical representations, which organize data into key-value pairs, arrays, and nested objects, preserving contextual relationships and enabling efficient storage, retrieval, and semantic querying. For instance, in news aggregation, a JSON object can nest an article's metadata (title, author, date), content (text, multimedia), and multimedia information (multimedia type, caption) hierarchically. Large Language Models (LLMs) play a transformative role in web data mining by parsing unstructured text and outputting structured results directly into complex JSON schemas. However, current benchmarks for evaluating LLMs' JSON output capabilities overemphasize pure JSON generation rather than assessing data comprehension and extraction abilities, a limitation that lacks relevance to practical web data mining tasks. To address this, we introduce DeepJSONEval, a novel benchmark featuring 2100 multi-domain instances with deep nested structures, categorized by difficulty. Experiments show significant performance gaps among LLMs in handling such complexity. Our benchmark and datasets are open-sourced to advance research in structured JSON generation.(https://github.com/GTS-AI-Infra-Lab-SotaS/DeepJSONEval).
format Preprint
id arxiv_https___arxiv_org_abs_2509_25922
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle DeepJSONEval: Benchmarking Complex Nested JSON Data Mining for Large Language Models
Zhou, Zhicheng
Li, Jing
Qiu, Suming
Huang, Junjie
Qiu, Linyuan
Sun, Zhijie
Artificial Intelligence
Computation and Language
The internet is saturated with low-density, high-redundancy information, such as social media comments, repetitive news, and lengthy discussions, making it difficult to extract valuable insights efficiently. Multi-layer nested JSON structures provide an effective solution by compressing such information into semantically rich, hierarchical representations, which organize data into key-value pairs, arrays, and nested objects, preserving contextual relationships and enabling efficient storage, retrieval, and semantic querying. For instance, in news aggregation, a JSON object can nest an article's metadata (title, author, date), content (text, multimedia), and multimedia information (multimedia type, caption) hierarchically. Large Language Models (LLMs) play a transformative role in web data mining by parsing unstructured text and outputting structured results directly into complex JSON schemas. However, current benchmarks for evaluating LLMs' JSON output capabilities overemphasize pure JSON generation rather than assessing data comprehension and extraction abilities, a limitation that lacks relevance to practical web data mining tasks. To address this, we introduce DeepJSONEval, a novel benchmark featuring 2100 multi-domain instances with deep nested structures, categorized by difficulty. Experiments show significant performance gaps among LLMs in handling such complexity. Our benchmark and datasets are open-sourced to advance research in structured JSON generation.(https://github.com/GTS-AI-Infra-Lab-SotaS/DeepJSONEval).
title DeepJSONEval: Benchmarking Complex Nested JSON Data Mining for Large Language Models
topic Artificial Intelligence
Computation and Language
url https://arxiv.org/abs/2509.25922