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Sequential recommendation models have achieved state-of-the-art performance using self-attention mechanism. It has since been found that moving beyond only using item ID and positional embeddings leads to a significant accuracy boost when…

信息检索 · 计算机科学 2024-09-10 Linsey Pang , Amir Hossein Raffiee , Wei Liu , Keld Lundgaard

Retrieval-augmented generation models augment knowledge encoded in a language model by providing additional relevant external knowledge (context) during generation. Although it has been shown that the quantity and quality of context impact…

计算与语言 · 计算机科学 2024-03-22 Kosuke Akimoto , Kunihiro Takeoka , Masafumi Oyamada

Self-attention model have shown its flexibility in parallel computation and the effectiveness on modeling both long- and short-term dependencies. However, it calculates the dependencies between representations without considering the…

计算与语言 · 计算机科学 2019-02-18 Baosong Yang , Jian Li , Derek Wong , Lidia S. Chao , Xing Wang , Zhaopeng Tu

Generating domain-specific content using small language models poses challenges, especially when dealing with multiple distinct datasets with minimal overlap. In this study, we explore methods to enable a small language model to produce…

计算与语言 · 计算机科学 2024-10-03 Ankit Maloo , Abhinav Garg

Modeling long sequences of user behaviors has emerged as a critical frontier in generative recommendation. However, existing solutions face a dilemma: linear attention mechanisms achieve efficiency at the cost of retrieval precision due to…

信息检索 · 计算机科学 2026-02-23 Lei Xin , Yuhao Zheng , Ke Cheng , Changjiang Jiang , Zifan Zhang , Fanhu Zeng

Generative AI has significantly changed industries by enabling text-driven image generation, yet challenges remain in achieving high-resolution outputs that align with fine-grained user preferences. Consequently, multi-round interactions…

计算机视觉与模式识别 · 计算机科学 2025-04-28 Kun Li , Jianhui Wang , Yangfan He , Xinyuan Song , Ruoyu Wang , Hongyang He , Wenxin Zhang , Jiaqi Chen , Keqin Li , Sida Li , Miao Zhang , Tianyu Shi , Xueqian Wang

Accurate accident anticipation remains challenging when driver cognition and dynamic road conditions are underrepresented in predictive models. In this paper, we propose CAMERA (Context-Aware Multi-modal Enhanced Risk Anticipation), a…

计算工程、金融与科学 · 计算机科学 2025-07-17 Jiaxun Zhang , Haicheng Liao , Yumu Xie , Chengyue Wang , Yanchen Guan , Bin Rao , Zhenning Li

We consider incorporating topic information into the sequence-to-sequence framework to generate informative and interesting responses for chatbots. To this end, we propose a topic aware sequence-to-sequence (TA-Seq2Seq) model. The model…

计算与语言 · 计算机科学 2016-09-20 Chen Xing , Wei Wu , Yu Wu , Jie Liu , Yalou Huang , Ming Zhou , Wei-Ying Ma

Recurrent neural networks with differentiable attention mechanisms have had success in generative and classification tasks. We show that the classification performance of such models can be enhanced by guiding a randomly initialized model…

机器学习 · 计算机科学 2017-12-18 Jack Lindsey

Traditional event coreference systems usually rely on pipeline framework and hand-crafted features, which often face error propagation problem and have poor generalization ability. In this paper, we propose an End-to-End Event Coreference…

计算与语言 · 计算机科学 2020-09-18 Yaojie Lu , Hongyu Lin , Jialong Tang , Xianpei Han , Le Sun

A variety of real-world processes (over networks) produce sequences of data whose complex temporal dynamics need to be studied. More especially, the event timestamps can carry important information about the underlying network dynamics,…

机器学习 · 计算机科学 2017-03-27 Shuai Xiao , Junchi Yan , Mehrdad Farajtabar , Le Song , Xiaokang Yang , Hongyuan Zha

The task of event extraction has long been investigated in a supervised learning paradigm, which is bound by the number and the quality of the training instances. Existing training data must be manually generated through a combination of…

计算与语言 · 计算机科学 2017-12-12 Ying Zeng , Yansong Feng , Rong Ma , Zheng Wang , Rui Yan , Chongde Shi , Dongyan Zhao

Commonsense generation aims at generating plausible everyday scenario description based on a set of provided concepts. Digging the relationship of concepts from scratch is non-trivial, therefore, we retrieve prototypes from external…

计算与语言 · 计算机科学 2020-12-02 Zhihao Fan , Yeyun Gong , Zhongyu Wei , Siyuan Wang , Yameng Huang , Jian Jiao , Xuanjing Huang , Nan Duan , Ruofei Zhang

Current storytelling systems focus more ongenerating stories with coherent plots regard-less of the narration style, which is impor-tant for controllable text generation. There-fore, we propose a new task, stylized story gen-eration, namely…

计算与语言 · 计算机科学 2021-08-20 Xiangzhe Kong , Jialiang Huang , Ziquan Tung , Jian Guan , Minlie Huang

The task of event detection and classification is central to most information retrieval applications. We show that a Transformer based architecture can effectively model event extraction as a sequence labeling task. We propose a combination…

计算与语言 · 计算机科学 2020-09-16 Parul Awasthy , Tahira Naseem , Jian Ni , Taesun Moon , Radu Florian

Recent generative data augmentation methods conditioned on both image and text prompts struggle to balance between fidelity and diversity, as it is challenging to preserve essential image details while aligning with varied text prompts.…

计算机视觉与模式识别 · 计算机科学 2025-10-20 Tianchen Zhao , Xuanbai Chen , Zhihua Li , Jun Fang , Dongsheng An , Xiang Xu , Zhuowen Tu , Yifan Xing

Point processes offer a versatile framework for sequential event modeling. However, the computational challenges and constrained representational power of the existing point process models have impeded their potential for wider…

机器学习 · 统计学 2025-01-22 Zheng Dong , Zekai Fan , Shixiang Zhu

We consider the problem of how to improve automatic target recognition by fusing the naive sensor-level classification decisions with "intuition," or context, in a mathematically principled way. This is a general approach that is compatible…

人工智能 · 计算机科学 2018-06-01 Christopher A. George , Pranab Banerjee , Kendra E. Moore

Joint entity and relation extraction plays a pivotal role in various applications, notably in the construction of knowledge graphs. Despite recent progress, existing approaches often fall short in two key aspects: richness of representation…

计算与语言 · 计算机科学 2024-04-22 Urchade Zaratiana , Nadi Tomeh , Yann Dauxais , Pierre Holat , Thierry Charnois

Improving Large Language Model (LLM) agents for sequential decision-making tasks typically requires extensive task-specific knowledge engineering--custom prompts, curated examples, and specialized observation/action spaces. We investigate a…

机器学习 · 计算机科学 2025-05-20 Vishnu Sarukkai , Zhiqiang Xie , Kayvon Fatahalian