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Pijian Li

4 accepted papers

2024

Rethinking Two-Stage Referring Expression Comprehension: A Novel Grounding and Segmentation Method Modulated by Point

AAAI 2024technical

As a fundamental and challenging task in the vision and language domain, Referring Expression Comprehension (REC) has shown impressive improvements recently. However, for a complex task that couples the comprehension of abstract concepts and the localization of concrete instances, one-stage approach…

2023

Linking People across Text and Images Based on Social Relation Reasoning

AAAI 2023technical

As a sub-task of visual grounding, linking people across text and images aims to localize target people in images with corresponding sentences. Existing approaches tend to capture superficial features of people (e.g., dress and location) that suffer from the incompleteness information across text an…

2021

Entity Guided Question Generation with Contextual Structure and Sequence Information Capturing

AAAI 2021technical

Question generation is a challenging task and has attracted widespread attention in recent years. Although previous studies have made great progress, there are still two main shortcomings: First, previous work did not simultaneously capture the sequence information and structure information hidden i…

2021

Story Ending Generation with Multi-Level Graph Convolutional Networks over Dependency Trees

AAAI 2021technical

As an interesting and challenging task, story ending generation aims at generating a reasonable and coherent ending for a given story context. The key challenge of the task is to comprehend the context sufficiently and capture the hidden logic information effectively, which has not been well explore…