Search Results for author: Zifeng Ding

Found 14 papers, 5 papers with code

Learning Neural Ordinary Equations for Forecasting Future Links on Temporal Knowledge Graphs

no code implementations EMNLP 2021 Zhen Han, Zifeng Ding, Yunpu Ma, Yujia Gu, Volker Tresp

In addition, a novel graph transition layer is applied to capture the transitions on the dynamic graph, i. e., edge formation and dissolution.

Knowledge Graphs

TempCaps: A Capsule Network-based Embedding Model for Temporal Knowledge Graph Completion

1 code implementation spnlp (ACL) 2022 Guirong Fu, Zhao Meng, Zhen Han, Zifeng Ding, Yunpu Ma, Matthias Schubert, Volker Tresp, Roger Wattenhofer

In this paper, we tackle the temporal knowledge graph completion task by proposing TempCaps, which is a Capsule network-based embedding model for Temporal knowledge graph completion.

Entity Embeddings Temporal Knowledge Graph Completion

Red Teaming GPT-4V: Are GPT-4V Safe Against Uni/Multi-Modal Jailbreak Attacks?

no code implementations4 Apr 2024 Shuo Chen, Zhen Han, Bailan He, Zifeng Ding, Wenqian Yu, Philip Torr, Volker Tresp, Jindong Gu

Various jailbreak attacks have been proposed to red-team Large Language Models (LLMs) and revealed the vulnerable safeguards of LLMs.

Stop Reasoning! When Multimodal LLMs with Chain-of-Thought Reasoning Meets Adversarial Images

no code implementations22 Feb 2024 Zefeng Wang, Zhen Han, Shuo Chen, Fan Xue, Zifeng Ding, Xun Xiao, Volker Tresp, Philip Torr, Jindong Gu

Our research evaluates the adversarial robustness of MLLMs when employing CoT reasoning, finding that CoT marginally improves adversarial robustness against existing attack methods.

Adversarial Robustness

Text2Loc: 3D Point Cloud Localization from Natural Language

no code implementations27 Nov 2023 Yan Xia, Letian Shi, Zifeng Ding, João F. Henriques, Daniel Cremers

We tackle the problem of 3D point cloud localization based on a few natural linguistic descriptions and introduce a novel neural network, Text2Loc, that fully interprets the semantic relationship between points and text.

Contrastive Learning

zrLLM: Zero-Shot Relational Learning on Temporal Knowledge Graphs with Large Language Models

1 code implementation15 Nov 2023 Zifeng Ding, Heling Cai, Jingpei Wu, Yunpu Ma, Ruotong Liao, Bo Xiong, Volker Tresp

We first input the text descriptions of KG relations into large language models (LLMs) for generating relation representations, and then introduce them into embedding-based TKGF methods.

Knowledge Graphs Relation +1

Exploring Link Prediction over Hyper-Relational Temporal Knowledge Graphs Enhanced with Time-Invariant Relational Knowledge

no code implementations14 Jul 2023 Zifeng Ding, Jingcheng Wu, Jingpei Wu, Yan Xia, Volker Tresp

We develop two new benchmark hyper-relational TKG (HTKG) datasets, i. e., Wiki-hy and YAGO-hy, and propose an HTKG reasoning model that efficiently models both temporal facts and qualifiers.

Knowledge Graphs Link Prediction +1

Improving Few-Shot Inductive Learning on Temporal Knowledge Graphs using Confidence-Augmented Reinforcement Learning

1 code implementation2 Apr 2023 Zifeng Ding, Jingpei Wu, Zongyue Li, Yunpu Ma, Volker Tresp

Most previous TKGC methods only consider predicting the missing links among the entities seen in the training set, while they are unable to achieve great performance in link prediction concerning newly-emerged unseen entities.

Few-Shot Learning Link Prediction +1

Few-Shot Inductive Learning on Temporal Knowledge Graphs using Concept-Aware Information

no code implementations15 Nov 2022 Zifeng Ding, Jingpei Wu, Bailan He, Yunpu Ma, Zhen Han, Volker Tresp

Similar problem exists in temporal knowledge graphs (TKGs), and no previous temporal knowledge graph completion (TKGC) method is developed for modeling newly-emerged entities.

Link Prediction Meta-Learning +1

Learning Meta Representations of One-shot Relations for Temporal Knowledge Graph Link Prediction

no code implementations21 May 2022 Zifeng Ding, Bailan He, Yunpu Ma, Zhen Han, Volker Tresp

In this paper, we follow the previous work that focuses on few-shot relational learning on static KGs and extend two fundamental TKG reasoning tasks, i. e., interpolated and extrapolated link prediction, to the one-shot setting.

Few-Shot Learning Knowledge Graphs +2

ECOLA: Enhanced Temporal Knowledge Embeddings with Contextualized Language Representations

no code implementations17 Mar 2022 Zhen Han, Ruotong Liao, Jindong Gu, Yao Zhang, Zifeng Ding, Yujia Gu, Heinz Köppl, Hinrich Schütze, Volker Tresp

Since conventional knowledge embedding models cannot take full advantage of the abundant textual information, there have been extensive research efforts in enhancing knowledge embedding using texts.

Knowledge Graph Embedding Link Prediction +1

A Simple But Powerful Graph Encoder for Temporal Knowledge Graph Completion

no code implementations14 Dec 2021 Zifeng Ding, Yunpu Ma, Bailan He, Volker Tresp

Knowledge graphs contain rich knowledge about various entities and the relational information among them, while temporal knowledge graphs (TKGs) describe and model the interactions of the entities over time.

Temporal Knowledge Graph Completion

Temporal Knowledge Graph Forecasting with Neural ODE

1 code implementation13 Jan 2021 Zhen Han, Zifeng Ding, Yunpu Ma, Yujia Gu, Volker Tresp

In addition, a novel graph transition layer is applied to capture the transitions on the dynamic graph, i. e., edge formation and dissolution.

Future prediction Knowledge Graphs

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