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We propose a novel Transformer encoder-based architecture with syntactical knowledge encoded for intent detection and slot filling. Specifically, we encode syntactic knowledge into the Transformer encoder by jointly training it to predict…

人工智能 · 计算机科学 2020-12-23 Jixuan Wang , Kai Wei , Martin Radfar , Weiwei Zhang , Clement Chung

Knowledge Tracing (KT) is committed to capturing students' knowledge mastery from their historical interactions. Simulating students' memory states is a promising approach to enhance both the performance and interpretability of knowledge…

机器学习 · 计算机科学 2025-08-12 Mingrong Lin , Ke Deng , Zhengyang Wu , Zetao Zheng , Jie Li

The world has transitioned into a new phase of online learning in response to the recent Covid19 pandemic. Now more than ever, it has become paramount to push the limits of online learning in every manner to keep flourishing the education…

机器学习 · 计算机科学 2020-08-31 Shalini Pandey , Jaideep Srivastava

Systems for knowledge-intensive tasks such as open-domain question answering (QA) usually consist of two stages: efficient retrieval of relevant documents from a large corpus and detailed reading of the selected documents to generate…

计算与语言 · 计算机科学 2022-12-06 Zhengbao Jiang , Luyu Gao , Jun Araki , Haibo Ding , Zhiruo Wang , Jamie Callan , Graham Neubig

Accurate modeling of student knowledge is essential for large-scale online learning systems that are increasingly used for student training. Knowledge tracing aims to model student knowledge state given the student's sequence of learning…

计算机与社会 · 计算机科学 2023-01-31 Siqian Zhao , Chunpai Wang , Shaghayegh Sahebi

Knowledge tracing (KT) is a crucial task in computer-aided education and intelligent tutoring systems, predicting students' performance on new questions from their responses to prior ones. An accurate KT model can capture a student's…

计算机与社会 · 计算机科学 2025-02-14 Jiajun Cui , Hong Qian , Chanjin Zheng , Lu Wang , Mo Yu , Wei Zhang

The combinatorial structure of many real-world action spaces leads to exponential growth in the number of possible actions, limiting the effectiveness of conventional reinforcement learning algorithms. Recent approaches for combinatorial…

机器学习 · 计算机科学 2026-02-02 Matthew Landers , Taylor W. Killian , Thomas Hartvigsen , Afsaneh Doryab

The dominant sequence transduction models are based on complex recurrent or convolutional neural networks in an encoder-decoder configuration. The best performing models also connect the encoder and decoder through an attention mechanism.…

Modern online education has the capacity to provide intelligent educational services by automatically analyzing substantial amounts of student behavioral data. Knowledge Tracing (KT) is one of the fundamental tasks for student behavioral…

计算机与社会 · 计算机科学 2024-07-16 Shuanghong Shen , Qi Liu , Zhenya Huang , Yonghe Zheng , Minghao Yin , Minjuan Wang , Enhong Chen

Recent progress on parse tree encoder for sentence representation learning is notable. However, these works mainly encode tree structures recursively, which is not conducive to parallelization. On the other hand, these works rarely take…

计算与语言 · 计算机科学 2022-05-10 Junhua Ma , Jiajun Li , Yuxuan Liu , Shangbo Zhou , Xue Li

Knowledge tracing (KT) models, e.g., the deep knowledge tracing (DKT) model, track an individual learner's acquisition of skills over time by examining the learner's performance on questions related to those skills. A practical limitation…

机器学习 · 计算机科学 2020-05-27 Shashank Sonkar , Andrew E. Waters , Andrew S. Lan , Phillip J. Grimaldi , Richard G. Baraniuk

While attention mechanisms have been proven to be effective in many NLP tasks, majority of them are data-driven. We propose a novel knowledge-attention encoder which incorporates prior knowledge from external lexical resources into deep…

计算与语言 · 计算机科学 2020-03-05 Pengfei Li , Kezhi Mao , Xuefeng Yang , Qi Li

In this paper, we show that a simple self-supervised pre-trained audio model can achieve comparable inference efficiency to more complicated pre-trained models with speech transformer encoders. These speech transformers rely on mixing…

声音 · 计算机科学 2024-02-09 Sungho Jeon , Ching-Feng Yeh , Hakan Inan , Wei-Ning Hsu , Rashi Rungta , Yashar Mehdad , Daniel Bikel

Knowledge Tracing (KT) is crucial in education assessment, which focuses on depicting students' learning states and assessing students' mastery of subjects. With the rise of modern online learning platforms, particularly massive open online…

机器学习 · 计算机科学 2025-01-22 Weihua Cheng , Hanwen Du , Chunxiao Li , Ersheng Ni , Liangdi Tan , Tianqi Xu , Yongxin Ni

Knowledge tracing is the task of predicting a learner's future performance based on the history of the learner's performance. Current knowledge tracing models are built based on an extensive set of data that are collected from multiple…

计算机与社会 · 计算机科学 2022-01-19 Sujanya Suresh , Savitha Ramasamy , P. N. Suganthan , Cheryl Sze Yin Wong

Recently, knowledge tracing models have been applied in educational data mining such as the Self-attention knowledge tracing model(SAKT), which models the relationship between exercises and Knowledge concepts(Kcs). However, relation…

机器学习 · 计算机科学 2023-04-11 Linqing Li , Zhifeng Wang

We study the problem of incorporating prior knowledge into a deep Transformer-based model,i.e.,Bidirectional Encoder Representations from Transformers (BERT), to enhance its performance on semantic textual matching tasks. By probing and…

计算与语言 · 计算机科学 2021-02-23 Tingyu Xia , Yue Wang , Yuan Tian , Yi Chang

Knowledge tracing---where a machine models the knowledge of a student as they interact with coursework---is a well established problem in computer supported education. Though effectively modeling student knowledge would have high…

Transformer based knowledge tracing model is an extensively studied problem in the field of computer-aided education. By integrating temporal features into the encoder-decoder structure, transformers can processes the exercise information…

人工智能 · 计算机科学 2021-02-02 Chengwei Zhang , Yangzhou Jiang , Wei Zhang , Chengyu Gu

In this paper, we propose an encoder-decoder neural architecture (called Channelformer) to achieve improved channel estimation for orthogonal frequency-division multiplexing (OFDM) waveforms in downlink scenarios. The self-attention…

信号处理 · 电气工程与系统科学 2023-02-10 Dianxin Luan , John Thompson