Search Results for author: Cehao Yang

Found 7 papers, 3 papers with code

Financial Wind Tunnel: A Retrieval-Augmented Market Simulator

no code implementations23 Mar 2025 Bokai Cao, Xueyuan Lin, Yiyan Qi, Chengjin Xu, Cehao Yang, Jian Guo

To address this challenge, we propose Financial Wind Tunnel (FWT), a retrieval-augmented market simulator designed to generate controllable, reasonable, and adaptable market dynamics for model testing.

Retrieval

LongFaith: Enhancing Long-Context Reasoning in LLMs with Faithful Synthetic Data

1 code implementation18 Feb 2025 Cehao Yang, Xueyuan Lin, Chengjin Xu, Xuhui Jiang, Shengjie Ma, Aofan Liu, Hui Xiong, Jian Guo

Despite the growing development of long-context large language models (LLMs), data-centric approaches relying on synthetic data have been hindered by issues related to faithfulness, which limit their effectiveness in enhancing model performance on tasks such as long-context reasoning and question answering (QA).

Misinformation Question Answering

Retrieval, Reasoning, Re-ranking: A Context-Enriched Framework for Knowledge Graph Completion

no code implementations12 Nov 2024 Muzhi Li, Cehao Yang, Chengjin Xu, Xuhui Jiang, Yiyan Qi, Jian Guo, Ho-fung Leung, Irwin King

Firstly, the Retrieval module gathers supporting triples from the KG, collects plausible candidate answers from a base embedding model, and retrieves context for each related entity.

Language Modeling Language Modelling +3

Context-aware Inductive Knowledge Graph Completion with Latent Type Constraints and Subgraph Reasoning

1 code implementation22 Oct 2024 Muzhi Li, Cehao Yang, Chengjin Xu, Zixing Song, Xuhui Jiang, Jian Guo, Ho-fung Leung, Irwin King

With sufficient guidance from proper prompts and supervised fine-tuning, CATS activates the strong semantic understanding and reasoning capabilities of large language models to assess the existence of query triples, which consist of two modules.

Inductive knowledge graph completion

Think-on-Graph 2.0: Deep and Faithful Large Language Model Reasoning with Knowledge-guided Retrieval Augmented Generation

1 code implementation15 Jul 2024 Shengjie Ma, Chengjin Xu, Xuhui Jiang, Muzhi Li, Huaren Qu, Cehao Yang, Jiaxin Mao, Jian Guo

We conduct a series of well-designed experiments to highlight the following advantages of ToG-2: 1) ToG-2 tightly couples the processes of context retrieval and graph retrieval, deepening context retrieval via the KG while enabling reliable graph retrieval based on contexts; 2) it achieves deep and faithful reasoning in LLMs through an iterative knowledge retrieval process of collaboration between contexts and the KG; and 3) ToG-2 is training-free and plug-and-play compatible with various LLMs.

Information Retrieval Knowledge Graphs +6

Financial Knowledge Large Language Model

no code implementations29 Jun 2024 Cehao Yang, Chengjin Xu, Yiyan Qi

Secondly, we propose IDEA-FinKER, a Financial Knowledge Enhancement framework designed to facilitate the rapid adaptation of general LLMs to the financial domain, introducing a retrieval-based few-shot learning method for real-time context-level knowledge injection, and a set of high-quality financial knowledge instructions for fine-tuning any general LLM.

Few-Shot Learning Financial Analysis +5

Context Graph

no code implementations17 Jun 2024 Chengjin Xu, Muzhi Li, Cehao Yang, Xuhui Jiang, Lumingyuan Tang, Yiyan Qi, Jian Guo

Knowledge Graphs (KGs) are foundational structures in many AI applications, representing entities and their interrelations through triples.

Knowledge Graphs Question Answering

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