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Pre-training Large Language Models (LLMs) on web-scale datasets becomes fundamental for advancing general-purpose AI. In contrast, enhancing their predictive performance on downstream tasks typically involves adapting their knowledge…

There is vivid research on adapting Large Language Models (LLMs) to perform a variety of tasks in high-stakes domains such as healthcare. Despite their popularity, there is a lack of understanding of the extent and contributing factors that…

We propose a novel approach for class incremental online learning in a limited data setting. This problem setting is challenging because of the following constraints: (1) Classes are given incrementally, which necessitates a class…

机器学习 · 计算机科学 2021-06-15 Mohammed Asad Karim , Vinay Kumar Verma , Pravendra Singh , Vinay Namboodiri , Piyush Rai

This paper presents a new algorithm for online linear regression whose efficiency guarantees satisfy the requirements of the KWIK (Knows What It Knows) framework. The algorithm improves on the complexity bounds of the current…

机器学习 · 计算机科学 2012-05-14 Thomas J. Walsh , Istvan Szita , Carlos Diuk , Michael L. Littman

Knowledge Tracing (KT) infers a student's knowledge state from past interactions to predict future performance. Conventional Deep Learning (DL)-based KT models are typically tied to platform-specific identifiers and latent representations,…

人工智能 · 计算机科学 2026-04-23 Zhiyi Duan , Hongyu Yuan , Rui Liu

Automated question quality rating (AQQR) aims to evaluate question quality through computational means, thereby addressing emerging challenges in online learnersourced question repositories. Existing methods for AQQR rely solely on…

计算与语言 · 计算机科学 2021-11-22 Lin Ni , Qiming Bao , Xiaoxuan Li , Qianqian Qi , Paul Denny , Jim Warren , Michael Witbrock , Jiamou Liu

Large language models (LLMs) show strong capabilities in general reasoning but typically lack reliability in scientific domains like quantum mechanics, which demand strict adherence to physical constraints. This limitation arises from the…

Recent studies have identified one aggravating factor of LLM hallucinations as the knowledge inconsistency between pre-training and fine-tuning, where unfamiliar fine-tuning data mislead the LLM to fabricate plausible but wrong outputs. In…

计算与语言 · 计算机科学 2024-10-28 Yujian Liu , Shiyu Chang , Tommi Jaakkola , Yang Zhang

Reranking is fundamental to information retrieval and retrieval-augmented generation, with recent Large Language Models (LLMs) significantly advancing reranking quality. Most current works rely on large-scale LLMs (>7B parameters),…

信息检索 · 计算机科学 2026-04-17 Xianming Li , Aamir Shakir , Rui Huang , Tsz-fung Andrew Lee , Julius Lipp , Benjamin Clavié , Jing Li

This study introduces DK-PRACTICE (Dynamic Knowledge Prediction and Educational Content Recommendation System), an intelligent online platform that leverages machine learning to provide personalized learning recommendations based on student…

计算机与社会 · 计算机科学 2025-01-22 Marina Delianidi , Konstantinos Diamantaras , Ioannis Moras , Antonis Sidiropoulos

Cognitive diagnosis can infer the students' mastery of specific knowledge concepts based on historical response logs. However, the existing cognitive diagnostic models (CDMs) represent students' proficiency via a unidimensional perspective,…

机器学习 · 计算机科学 2025-02-05 Yawen Chen , Jiande Sun , Jing Li , Huaxiang Zhang

Knowledge Distillation (KD) compresses large language models (LLMs) by transferring the teacher model's capabilities to a smaller student model, reducing inference cost and memory usage while maintaining performance. However, existing KD…

计算与语言 · 计算机科学 2025-06-11 Lingyuan Liu , Mengxiang Zhang

Large language models (LLMs) face the challenges in fine-tuning and deployment due to their high memory demands and computational costs. While parameter-efficient fine-tuning (PEFT) methods aim to reduce the memory usage of the optimizer…

机器学习 · 计算机科学 2023-10-31 Jeonghoon Kim , Jung Hyun Lee , Sungdong Kim , Joonsuk Park , Kang Min Yoo , Se Jung Kwon , Dongsoo Lee

Recommendation systems are widely used in e-commerce websites and online platforms to address information overload. However, existing systems primarily rely on historical data and user feedback, making it difficult to capture user intent…

信息检索 · 计算机科学 2024-02-22 Qian Zhao , Hao Qian , Ziqi Liu , Gong-Duo Zhang , Lihong Gu

Fine-grained skill representations, commonly referred to as knowledge components (KCs), are fundamental to many approaches in student modeling and learning analytics. However, KC-level correctness labels are rarely available in real-world…

计算与语言 · 计算机科学 2026-03-31 Zhangqi Duan , Arnav Kankaria , Dhruv Kartik , Andrew Lan

In this paper, we present a coarse to fine question answering (CFQA) system based on reinforcement learning which can efficiently processes documents with different lengths by choosing appropriate actions. The system is designed using an…

计算与语言 · 计算机科学 2021-06-02 Yu Wang , Hongxia Jin

Quantum machine learning (QML) has been identified as one of the key fields that could reap advantages from near-term quantum devices, next to optimization and quantum chemistry. Research in this area has focused primarily on variational…

量子物理 · 物理学 2022-06-01 Andrea Skolik , Sofiene Jerbi , Vedran Dunjko

Retrieval-augmented large language models (LLMs) have demonstrated efficacy in knowledge-intensive tasks such as open-domain QA, addressing inherent challenges in knowledge update and factual inadequacy. However, inconsistencies between…

计算与语言 · 计算机科学 2024-05-31 Jiajie Jin , Yutao Zhu , Yujia Zhou , Zhicheng Dou

Within the multimodal field, large vision-language models (LVLMs) have made significant progress due to their strong perception and reasoning capabilities in the visual and language systems. However, LVLMs are still plagued by the two…

计算机视觉与模式识别 · 计算机科学 2024-06-14 Sirui Cheng , Siyu Zhang , Jiayi Wu , Muchen Lan

Recommender systems have become increasingly ubiquitous in daily life. While traditional recommendation approaches primarily rely on ID-based representations or item-side content features, they often fall short in capturing the underlying…

信息检索 · 计算机科学 2025-08-12 Yunze Luo , Yinjie Jiang , Gaode Chen , Xinghua Zhang , Jun Zhang , Jian Liang , Kaigui Bian