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Large language models (LLMs) provide a promising way for accurate session-based recommendation (SBR), but they demand substantial computational time and memory. Knowledge distillation (KD)-based methods can alleviate these issues by…

信息检索 · 计算机科学 2025-02-25 Yingpeng Du , Zhu Sun , Ziyan Wang , Haoyan Chua , Jie Zhang , Yew-Soon Ong

Extractive Question Answering (EQA) in Machine Reading Comprehension (MRC) often faces the challenge of dealing with semantically identical but format-variant inputs. Our work introduces a novel approach, called the ``Query Latent Semantic…

计算与语言 · 计算机科学 2024-05-01 Sheng Ouyang , Jianzong Wang , Yong Zhang , Zhitao Li , Ziqi Liang , Xulong Zhang , Ning Cheng , Jing Xiao

Training models on synthetic data has emerged as an increasingly important strategy for improving the performance of generative AI. This approach is particularly helpful for large multimodal models (LMMs) due to the relative scarcity of…

人工智能 · 计算机科学 2026-01-13 Gabriela Ben Melech Stan , Estelle Aflalo , Avinash Madasu , Vasudev Lal , Phillip Howard

While LLMs have seen substantial improvement in reasoning capabilities, they also sometimes overthink, generating unnecessary reasoning steps, particularly under uncertainty, given ill-posed or ambiguous queries. We introduce statistically…

人工智能 · 计算机科学 2026-02-17 Yangxinyu Xie , Tao Wang , Soham Mallick , Yan Sun , Georgy Noarov , Mengxin Yu , Tanwi Mallick , Weijie J. Su , Edgar Dobriban

Autonomous agents, which perceive environments and take actions to achieve goals, have become increasingly feasible with the advancements in large language models (LLMs). However, current powerful agents often depend on sophisticated prompt…

计算与语言 · 计算机科学 2025-05-27 Yihan Chen , Benfeng Xu , Xiaorui Wang , Yongdong Zhang , Zhendong Mao

Recent studies have demonstrated the effectiveness of LLM test-time scaling. However, existing approaches to incentivize LLMs' deep thinking abilities generally require large-scale data or significant training efforts. Meanwhile, it remains…

计算与语言 · 计算机科学 2025-02-19 Ruotian Ma , Peisong Wang , Cheng Liu , Xingyan Liu , Jiaqi Chen , Bang Zhang , Xin Zhou , Nan Du , Jia Li

As online news consumption grows, personalized recommendation systems have become integral to digital journalism. However, these systems risk reinforcing filter bubbles and political polarization by failing to incorporate diverse…

计算与语言 · 计算机科学 2025-09-23 Dahyun Lee , Jonghyeon Choi , Jiyoung Han , Kunwoo Park

The increasing use of synthetic data generated by Large Language Models (LLMs) presents both opportunities and challenges in data-driven applications. While synthetic data provides a cost-effective, scalable alternative to real-world data…

计算与语言 · 计算机科学 2025-07-25 Tevin Atwal , Chan Nam Tieu , Yefeng Yuan , Zhan Shi , Yuhong Liu , Liang Cheng

Training on model-generated synthetic data is a promising approach for finetuning LLMs, but it remains unclear when it helps or hurts. In this paper, we investigate this question for math reasoning via an empirical study, followed by…

机器学习 · 计算机科学 2024-06-21 Amrith Setlur , Saurabh Garg , Xinyang Geng , Naman Garg , Virginia Smith , Aviral Kumar

Large language models (LLMs) have been widely adopted for synthetic data generation, significantly reducing annotation costs. However, most existing studies treat synthesis as a set of isolated tasks and overlook a more fundamental…

人工智能 · 计算机科学 2026-05-29 Zhenlin Hu , Yan Wang , Zhen Bi , Zihao Xue , Bingyu Zhu , Longtao Huang , Xiongtao Zhang , Zeyu Yang , Zhixuan Chu , Jungang Lou

While existing benchmarks probe the reasoning abilities of large language models (LLMs) across diverse domains, they predominantly assess passive reasoning, providing models with all the information needed to reach a solution. By contrast,…

机器学习 · 计算机科学 2025-06-11 Zhanke Zhou , Xiao Feng , Zhaocheng Zhu , Jiangchao Yao , Sanmi Koyejo , Bo Han

Advances in large language models (LLMs) have encouraged their adoption in the healthcare domain where vital clinical information is often contained in unstructured notes. Cancer staging status is available in clinical reports, but it…

计算与语言 · 计算机科学 2024-08-30 Chia-Hsuan Chang , Mary M. Lucas , Yeawon Lee , Christopher C. Yang , Grace Lu-Yao

Supervised fine-tuning (SFT) is a common method to enhance the tool calling capabilities of Large Language Models (LLMs), with the training data often being synthesized. The current data synthesis process generally involves sampling a set…

计算与语言 · 计算机科学 2025-03-18 Zezhong Wang , Xingshan Zeng , Weiwen Liu , Liangyou Li , Yasheng Wang , Lifeng Shang , Xin Jiang , Qun Liu , Kam-Fai Wong

The Knowledge Tracing (KT) task focuses on predicting a learner's future performance based on the historical interactions. The knowledge state plays a key role in learning process. However, considering that the knowledge state is influenced…

人工智能 · 计算机科学 2024-12-30 Shanshan Wang , Xueying Zhang , Keyang Wang , Xun Yang , Xingyi Zhang

The topical stance detection problem addresses detecting the stance of the text content with respect to a given topic: whether the sentiment of the given text content is in FAVOR of (positive), is AGAINST (negative), or is NONE (neutral)…

计算与语言 · 计算机科学 2018-01-10 Kuntal Dey , Ritvik Shrivastava , Saroj Kaushik

The rapid advancement of large language models (LLMs) has made machine-generated text increasingly difficult to distinguish from human-written text. While recent studies explore leveraging internal representations of language models to…

应用统计 · 统计学 2026-05-14 Luxu Liang , Xiang Li

We introduce a group of related methods for binary classification tasks using probes of the hidden state activations in large language models (LLMs). Performance is on par with the largest and most advanced LLMs currently available, but…

机器学习 · 计算机科学 2024-08-22 John Scoville , Shang Gao , Devanshu Agrawal , Javed Qadrud-Din

Stance Detection (SD) on social media has emerged as a prominent area of interest with implications for social business and political applications thereby garnering escalating research attention within NLP. The inherent subtlety and…

计算与语言 · 计算机科学 2025-03-06 Gibson Nkhata , Susan Gauch

Evaluating large language models (LLMs) on question answering often relies on static benchmarks that reward memorization and understate the role of retrieval, failing to capture the dynamic nature of world knowledge. We present…

计算与语言 · 计算机科学 2025-11-07 Heng Zhou , Ao Yu , Yuchen Fan , Jianing Shi , Li Kang , Hejia Geng , Yongting Zhang , Yutao Fan , Yuhao Wu , Tiancheng He , Yiran Qin , Lei Bai , Zhenfei Yin

We introduce DRESS, a novel approach for generating stylized large language model (LLM) responses through representation editing. Existing methods like prompting and fine-tuning are either insufficient for complex style adaptation or…

计算与语言 · 计算机科学 2025-01-27 Xinyu Ma , Yifeng Xu , Yang Lin , Tianlong Wang , Xu Chu , Xin Gao , Junfeng Zhao , Yasha Wang