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Extraction from raw text to a knowledge base of entities and fine-grained types is often cast as prediction into a flat set of entity and type labels, neglecting the rich hierarchies over types and entities contained in curated ontologies.…

计算与语言 · 计算机科学 2018-07-16 Shikhar Murty* , Patrick Verga* , Luke Vilnis , Irena Radovanovic , Andrew McCallum

Representation learning is a critical ingredient for natural language processing systems. Recent Transformer language models like BERT learn powerful textual representations, but these models are targeted towards token- and sentence-level…

计算与语言 · 计算机科学 2020-05-21 Arman Cohan , Sergey Feldman , Iz Beltagy , Doug Downey , Daniel S. Weld

Current supervised relational triple extraction approaches require huge amounts of labeled data and thus suffer from poor performance in few-shot settings. However, people can grasp new knowledge by learning a few instances. To this end, we…

计算与语言 · 计算机科学 2023-01-26 Haiyang Yu , Ningyu Zhang , Shumin Deng , Hongbin Ye , Wei Zhang , Huajun Chen

Large Language Models (LLMs) frequently lack domain-specific knowledge and even fine-tuned models tend to hallucinate. Hence, more reliable models that can include external knowledge are needed. We present a pipeline, 4StepFocus, and…

计算与语言 · 计算机科学 2024-09-04 Derian Boer , Fabian Koch , Stefan Kramer

This paper investigates techniques for knowledge injection into word embeddings learned from large corpora of unannotated data. These representations are trained with word cooccurrence statistics and do not commonly exploit syntactic and…

计算与语言 · 计算机科学 2020-10-06 Diego Ramirez-Echavarria , Antonis Bikakis , Luke Dickens , Rob Miller , Andreas Vlachidis

The task of completing knowledge triplets has broad downstream applications. Both structural and semantic information plays an important role in knowledge graph completion. Unlike previous approaches that rely on either the structures or…

计算与语言 · 计算机科学 2022-09-20 Jianhao Shen , Chenguang Wang , Linyuan Gong , Dawn Song

Recently, the embedding-based recommendation models (e.g., matrix factorization and deep models) have been prevalent in both academia and industry due to their effectiveness and flexibility. However, they also have such intrinsic…

信息检索 · 计算机科学 2019-12-19 Yuan Zhang , Xiaoran Xu , Hanning Zhou , Yan Zhang

Several methods have been explored for automating parts of Systematic Mapping (SM) and Systematic Review (SR) methodologies. Challenges typically evolve around the gaps in semantic understanding of text, as well as lack of domain and…

计算与语言 · 计算机科学 2021-02-10 Xiajing Li , Marios Daoutis

Literature analysis facilitates researchers to acquire a good understanding of the development of science and technology. The traditional literature analysis focuses largely on the literature metadata such as topics, authors, abstracts,…

人工智能 · 计算机科学 2021-01-29 Linlin Hou , Ji Zhang , Ou Wu , Ting Yu , Zhen Wang , Zhao Li , Jianliang Gao , Yingchun Ye , Rujing Yao

Service manual documents are crucial to the engineering company as they provide guidelines and knowledge to service engineers. However, it has become inconvenient and inefficient for service engineers to retrieve specific knowledge from…

计算与语言 · 计算机科学 2021-06-25 Jia Wei Chong , Zhiyuan Chen , Mei Shin Oh

This paper describes the system submitted to the SOMD 2026 Shared Task for Cross-Document Coreference Resolution (CDCR) of software mentions. Our approach addresses the challenge of identifying and clustering inconsistent software mentions…

计算与语言 · 计算机科学 2026-03-26 Julia Matela , Frank Krüger

In this paper, we propose Precision-Informed Semantic Modeling (PRISM), a structured topic modeling framework combining the benefits of rich representations captured by LLMs with the low cost and interpretability of latent semantic…

机器学习 · 计算机科学 2026-04-06 Connor Douglas , Utkucan Balci , Joseph Aylett-Bullock

This research explores the integration of large language models (LLMs) into scientific data assimilation, focusing on combustion science as a case study. Leveraging foundational models integrated with Retrieval-Augmented Generation (RAG)…

人工智能 · 计算机科学 2024-09-12 Vansh Sharma , Venkat Raman

Structured neuron encapsulation introduces a modular framework that enables more effective aggregation and specialization of information within deep learning architectures. A model modified through this framework demonstrated improved…

Mixture-of-Experts (MoE) Large Language Models (LLMs) face a trilemma of load imbalance, parameter redundancy, and communication overhead. We introduce a unified framework based on dynamic expert clustering and structured compression to…

计算与语言 · 计算机科学 2026-02-06 Peijun Zhu , Ning Yang , Baoliang Tian , Jiayu Wei , Weihao Zhang , Haijun Zhang , Pin Lv

The advancement of transformer neural networks has significantly elevated the capabilities of sentence similarity models, but they still struggle with highly discriminative tasks and may produce sub-optimal representations of important…

机器学习 · 计算机科学 2024-12-19 Logan Hallee , Rohan Kapur , Arjun Patel , Jason P. Gleghorn , Bohdan Khomtchouk

Efficient representation of text documents is an important building block in many NLP tasks. Research on long text categorization has shown that simple weighted averaging of word vectors for sentence representation often outperforms more…

计算与语言 · 计算机科学 2019-11-20 Vivek Gupta , Ankit Saw , Pegah Nokhiz , Harshit Gupta , Partha Talukdar

Since the amount of information on the internet is growing rapidly, it is not easy for a user to find relevant information for his/her query. To tackle this issue, much attention has been paid to Automatic Document Summarization. The key…

计算与语言 · 计算机科学 2019-02-05 Kamal Al-Sabahi , Zhang Zuping , Yang Kang

In the past few years, triplet loss-based metric embeddings have become a de-facto standard for several important computer vision problems, most no-tably, person reidentification. On the other hand, in the area of speech recognition the…

音频与语音处理 · 电气工程与系统科学 2022-02-08 Roman Vygon , Nikolay Mikhaylovskiy

Effective and controllable data selection is critical for LLM instruction tuning, especially with massive open-source datasets. Existing approaches primarily rely on instance-level quality scores, or diversity metrics based on embedding…

计算与语言 · 计算机科学 2026-01-21 Zihan Niu , Wenping Hu , Junmin Chen , Xiyue Wang , Tong Xu , Ruiming Tang