Papers by Shiliang Pu

11 papers
Perform like an Engine: A Closed-Loop Neural-Symbolic Learning Framework for Knowledge Graph Inference (2022.coling-1)

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Challenge: Existing knowledge graphs are incomplete and therefore lack interpretability.
Approach: They propose a closed-loop neural-symbolic learning framework EngineKG to address the natural incompleteness of knowledge graphs.
Outcome: The proposed model outperforms baselines on link prediction tasks on four real-world datasets.
LoRAMoE: Alleviating World Knowledge Forgetting in Large Language Models via MoE-Style Plugin (2024.acl-long)

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Challenge: Experimental results show that, as the instruction data increases, LoRAMoE can significantly improve the ability to process downstream tasks, while maintaining the world knowledge stored in the LLM.
Approach: They propose a framework that introduces several low-rank adapters and integrates them by using a router network to freeze the backbone model and force a portion of LoRAs to focus on leveraging world knowledge to solve downstream tasks.
Outcome: The proposed framework freezes the backbone model and forces a portion of LoRAs to focus on leveraging world knowledge to solve downstream tasks, to alleviate world knowledge forgetting.
End-to-End Modeling via Information Tree for One-Shot Natural Language Spatial Video Grounding (2022.acl-long)

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Challenge: Existing methods for grounding video frames with dense annotations require enormous amount of human effort.
Approach: They propose to ground natural language in video frames with only one frame labeled . they propose an end-to-end model that eliminates interference of irrelevant frames .
Outcome: The proposed model can ground natural language in all video frames with only one frame labeled . the proposed model eliminates interference of irrelevant frames based on branch search and cropping techniques .
Insert or Attach: Taxonomy Completion via Box Embedding (2024.acl-long)

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Challenge: Existing taxonomy expansion methods embed concepts as vectors in Euclidean space, causing incorrectly model asymmetric relations.
Approach: They propose to use box containment and center closeness to create geometric scorers that capture intrinsic relationships between concepts.
Outcome: The proposed framework outperforms existing methods on four real-world datasets.
MProto: Multi-Prototype Network with Denoised Optimal Transport for Distantly Supervised Named Entity Recognition (2023.emnlp-main)

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Challenge: Distantly supervised named entity recognition (DS-NER) aims to locate entity mentions and classify their types with knowledge bases or gazetteers and unlabeled corpus.
Approach: They propose a noise-robust prototype network named MProto for a DS-NER task . they propose an optimal transport algorithm to mitigate the noise from incomplete labeling .
Outcome: The proposed network achieves state-of-the-art on several DS-NER benchmarks.
Read Extensively, Focus Smartly: A Cross-document Semantic Enhancement Method for Visual Documents NER (2022.coling-1)

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Challenge: Existing methods to extract entities from visually-rich documents ignore the inherent multimodality of VRDs and thus the suboptimal results are achieved.
Approach: They propose a multimodal semantic enhancement method that filters redundant information in the current document and a cross-document information awareness technique to enrich the entity-related context.
Outcome: The proposed method outperforms existing methods on two documents understanding benchmarks covering eight languages.
AutoETER: Automated Entity Type Representation for Knowledge Graph Embedding (2020.findings-emnlp)

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Challenge: Existing knowledge graphs are incomplete whether they are constructed manually or automatically, limiting the effectiveness when exploited for downstream applications.
Approach: They propose a KGE framework with an automatic type embedding mechanism which can be easily integrated into any existing KGE model.
Outcome: The proposed model can model and infer all the relation patterns and complex relations compared to state-of-the-art models on four datasets.
Multi-modal Action Chain Abductive Reasoning (2023.acl-long)

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Challenge: Existing models for Abductive Reasoning are limited in their ability to infer the most plausible explanation of incomplete known phenomena.
Approach: They propose a vision-language task that aims to imagine the most plausible event by spatio-temporal grounding in past video and infer the hypothesis of subsequent action chain layer by layer.
Outcome: The proposed model outperforms existing video-language models in terms of effectiveness on the proposed dataset.
Entity Concept-enhanced Few-shot Relation Extraction (2021.acl-short)

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Challenge: Existing FSRE methods fail to classify relations based on information of sentences and entity pairs due to limited samples and lack of knowledge.
Approach: They propose a concept-sentence attention module to select the most appropriate concept from multiple concepts of each entity by calculating the semantic similarity between sentences and concepts.
Outcome: The proposed scheme outperforms existing methods on a few-shot relation extraction dataset.
Posterior-regularized REINFORCE for Instance Selection in Distant Supervision (N19-1)

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Challenge: Existing methods to train unbiased methods such as REINFORCE take time to train.
Approach: They propose to use posterior regularization to integrate domain-specific rules in instance selection using REINFORCE to improve the performance of the relation classifier trained on cleaned distant supervision datasets.
Outcome: The proposed method improves the performance of the relation classifier trained on cleaned distant supervision dataset as well as the efficiency of the REINFORCE training.
CAKE: A Scalable Commonsense-Aware Framework For Multi-View Knowledge Graph Completion (2022.acl-long)

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Challenge: Existing knowledge graph embedding techniques rely on fact-view data to predict missing links between entities, limiting their performance.
Approach: They propose a commonsense-aware knowledge embedding framework which generates commonsensense from factual triples with entity concepts for a KGC task.
Outcome: The proposed framework could produce high-quality negative triples and joint commonsense and fact-view link prediction.

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