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Contrastive learning methods have attracted considerable attention due to their remarkable success in analyzing graph-structured data. Inspired by the success of contrastive learning, we propose a novel framework for contrastive…

Machine Learning · Computer Science 2023-06-21 Xiaojuan Zhang , Jun Fu , Shuang Li

Knowledge graph completion (KGC) tasks aim to infer missing facts in a knowledge graph (KG) for many knowledge-intensive applications. However, existing embedding-based KGC approaches primarily rely on factual triples, potentially leading…

Artificial Intelligence · Computer Science 2024-10-08 Guanglin Niu , Bo Li , Siling Feng

Learner-item cognitive modeling plays a central role in the web-based online intelligent education system by enabling cognitive diagnosis (CD) across diverse online educational scenarios. Although ID embedding remains the mainstream…

Computation and Language · Computer Science 2026-04-07 Yuanhao Liu , Zihan Zhou , Kaiying Wu , Shuo Liu , Yiyang Huang , Jiajun Guo , Aimin Zhou , Hong Qian

In recent years, there has been a resurgence in methods that use distributed (neural) representations to represent and reason about semantic knowledge for robotics applications. However, while robots often observe previously unknown…

Robotics · Computer Science 2021-05-11 Angel Daruna , Mehul Gupta , Mohan Sridharan , Sonia Chernova

Explaining deep learning model inferences is a promising venue for scientific understanding, improving safety, uncovering hidden biases, evaluating fairness, and beyond, as argued by many scholars. One of the principal benefits of…

Machine Learning · Computer Science 2022-03-16 Asma Ghandeharioun , Been Kim , Chun-Liang Li , Brendan Jou , Brian Eoff , Rosalind W. Picard

Large language models internalize enormous parametric knowledge during pre-training. Concurrently, realistic applications necessitate external contextual knowledge to aid models on the underlying tasks. This raises a crucial dilemma known…

Artificial Intelligence · Computer Science 2024-07-29 Xiaowei Yuan , Zhao Yang , Yequan Wang , Shengping Liu , Jun Zhao , Kang Liu

Knowledge tracing (KT) which aims at predicting learner's knowledge mastery plays an important role in the computer-aided educational system. In recent years, many deep learning models have been applied to tackle the KT task, which have…

Computers and Society · Computer Science 2022-08-30 Hanshuang Tong , Zhen Wang , Yun Zhou , Shiwei Tong , Wenyuan Han , Qi Liu

Entity alignment aims at integrating heterogeneous knowledge from different knowledge graphs. Recent studies employ embedding-based methods by first learning the representation of Knowledge Graphs and then performing entity alignment via…

Machine Learning · Computer Science 2022-01-28 Xinhang Li , Yong Zhang , Chunxiao Xing

Modern deep neural networks remain challenging to interpret due to the opacity of their latent representations, impeding model understanding, debugging, and debiasing. Concept Embedding Models (CEMs) address this by mapping inputs to…

Machine Learning · Computer Science 2026-03-02 Oscar Hill , Mateo Espinosa Zarlenga , Mateja Jamnik

Deep learning models exhibit limited generalizability across different domains. Specifically, transferring knowledge from available entangled domain features(source/target domain) and categorical features to new unseen categorical features…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Qingjie Meng , Daniel Rueckert , Bernhard Kainz

Cognitive diagnosis aims to infer students' mastery levels based on their historical response logs. However, existing cognitive diagnosis models (CDMs), which rely on ID embeddings, often have to train specific models on specific domains.…

Computation and Language · Computer Science 2025-01-27 Shuo Liu , Zihan Zhou , Yuanhao Liu , Jing Zhang , Hong Qian

In this paper, we consider a real-world scenario where a model that is trained on pre-defined classes continually encounters unlabeled data that contains both known and novel classes. The goal is to continually discover novel classes while…

Computer Vision and Pattern Recognition · Computer Science 2023-10-19 Yanan Wu , Zhixiang Chi , Yang Wang , Songhe Feng

The key idea behind the unsupervised learning of disentangled representations is that real-world data is generated by a few explanatory factors of variation which can be recovered by unsupervised learning algorithms. In this paper, we…

Machine Learning · Computer Science 2019-06-19 Francesco Locatello , Stefan Bauer , Mario Lucic , Gunnar Rätsch , Sylvain Gelly , Bernhard Schölkopf , Olivier Bachem

Knowledge Distillation (KD) aims at transferring knowledge from a larger well-optimized teacher network to a smaller learnable student network.Existing KD methods have mainly considered two types of knowledge, namely the individual…

Computer Vision and Pattern Recognition · Computer Science 2021-08-13 Sheng Zhou , Yucheng Wang , Defang Chen , Jiawei Chen , Xin Wang , Can Wang , Jiajun Bu

Brain-inspired hyperdimensional computing (HDC) has been recently considered a promising learning approach for resource-constrained devices. However, existing approaches use static encoders that are never updated during the learning…

Machine Learning · Computer Science 2023-04-13 Junyao Wang , Sitao Huang , Mohsen Imani

Cognitive Diagnosis (CD) aims to evaluate students' cognitive states based on their interaction data, enabling downstream applications such as exercise recommendation and personalized learning guidance. However, existing methods often…

Machine Learning · Computer Science 2024-12-09 Fei Liu , Yizhong Zhang , Shuochen Liu , Shengwei Ji , Kui Yu , Le Wu

Multi-label text classification (MLTC) tasks in the medical domain often face the long-tail label distribution problem. Prior works have explored hierarchical label structures to find relevant information for few-shot classes, but mostly…

Computation and Language · Computer Science 2024-06-21 Xueren Ge , Satpathy Abhishek , Ronald Dean Williams , John A. Stankovic , Homa Alemzadeh

Knowledge Distillation (KD) transfers the knowledge from a high-capacity teacher network to strengthen a smaller student. Existing methods focus on excavating the knowledge hints and transferring the whole knowledge to the student. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-13 Chenxin Li , Mingbao Lin , Zhiyuan Ding , Nie Lin , Yihong Zhuang , Yue Huang , Xinghao Ding , Liujuan Cao

Recently, a considerable literature has grown up around the theme of Graph Convolutional Network (GCN). How to effectively leverage the rich structural information in complex graphs, such as knowledge graphs with heterogeneous types of…

Machine Learning · Computer Science 2021-04-26 Donghan Yu , Yiming Yang , Ruohong Zhang , Yuexin Wu

The problem of missing modalities is both critical and non-trivial to be handled in multi-modal models. It is common for multi-modal tasks that certain modalities contribute more compared to other modalities, and if those important…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Hu Wang , Congbo Ma , Jianpeng Zhang , Yuan Zhang , Jodie Avery , Louise Hull , Gustavo Carneiro