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相关论文: Context-aware recommendations from implicit data v…

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Recommendation from implicit feedback is a highly challenging task due to the lack of reliable negative feedback data. Existing methods address this challenge by treating all the un-observed data as negative (dislike) but downweight the…

信息检索 · 计算机科学 2021-08-03 Can Wang , Jiawei Chen , Sheng Zhou , Qihao Shi , Yan Feng , Chun Chen

This study centers on overcoming the challenge of selecting the best annotators for each query in Active Learning (AL), with the objective of minimizing misclassifications. AL recognizes the challenges related to cost and time when…

机器学习 · 计算机科学 2025-08-02 Diana Mortagua

Fine-tuning Large Language Models (LLMs) typically involves updating at least a few billions of parameters. A more parameter-efficient approach is Prompt Tuning (PT), which updates only a few learnable tokens, and differently, In-Context…

计算与语言 · 计算机科学 2024-10-23 Tsachi Blau , Moshe Kimhi , Yonatan Belinkov , Alexander Bronstein , Chaim Baskin

Practical recommender systems experience a cold-start problem when observed user-item interactions in the history are insufficient. Meta learning, especially gradient based one, can be adopted to tackle this problem by learning initial…

信息检索 · 计算机科学 2021-11-01 Xidong Feng , Chen Chen , Dong Li , Mengchen Zhao , Jianye Hao , Jun Wang

Given a sparse rating matrix and an auxiliary matrix of users or items, how can we accurately predict missing ratings considering different data contexts of entities? Many previous studies proved that utilizing the additional information…

机器学习 · 计算机科学 2019-08-23 Hyunsik Jeon , Bonhun Koo , U Kang

Contextual biasing improves automatic speech recognition (ASR) by integrating external knowledge, such as user-specific phrases or entities, during decoding. In this work, we use an attention-based biasing decoder to produce scores for…

音频与语音处理 · 电气工程与系统科学 2025-10-29 Wanting Huang , Weiran Wang

Active learning (AL) aims to enable training high performance classifiers with low annotation cost by predicting which subset of unlabelled instances would be most beneficial to label. The importance of AL has motivated extensive research,…

机器学习 · 计算机科学 2018-06-14 Kunkun Pang , Mingzhi Dong , Yang Wu , Timothy Hospedales

Procedural texts help AI enhance reasoning about context and action sequences. Transforming these into Semantic Role Labeling (SRL) improves understanding of individual steps by identifying predicate-argument structure like…

计算与语言 · 计算机科学 2025-05-28 Anil Batra , Laura Sevilla-Lara , Marcus Rohrbach , Frank Keller

Recent work on activation and latent steering has demonstrated that modifying internal representations can effectively guide large language models (LLMs) toward improved reasoning and efficiency without additional training. However, most…

机器学习 · 计算机科学 2026-01-07 Tuc Nguyen , Thai Le

In this paper, we propose a robust sequential learning strategy for training large-scale Recommender Systems (RS) over implicit feedback mainly in the form of clicks. Our approach relies on the minimization of a pairwise ranking loss over…

信息检索 · 计算机科学 2021-09-15 Alexandra Burashnikova , Yury Maximov , Massih-Reza Amini

Despite having achieved great success for sentiment analysis, existing neural models struggle with implicit sentiment analysis. This may be due to the fact that they may latch onto spurious correlations ("shortcuts", e.g., focusing only on…

计算与语言 · 计算机科学 2022-08-22 Siyin Wang , Jie Zhou , Changzhi Sun , Junjie Ye , Tao Gui , Qi Zhang , Xuanjing Huang

By incorporating additional contextual information, deep biasing methods have emerged as a promising solution for speech recognition of personalized words. However, for real-world voice assistants, always biasing on such personalized words…

声音 · 计算机科学 2023-08-16 Tianyi Xu , Zhanheng Yang , Kaixun Huang , Pengcheng Guo , Ao Zhang , Biao Li , Changru Chen , Chao Li , Lei Xie

Recommender systems play a fundamental role in web applications in filtering massive information and matching user interests. While many efforts have been devoted to developing more effective models in various scenarios, the exploration on…

机器学习 · 计算机科学 2020-08-24 Ninghao Liu , Yong Ge , Li Li , Xia Hu , Rui Chen , Soo-Hyun Choi

Implicit in-context learning (ICL) has newly emerged as a promising paradigm that simulates ICL behaviors in the representation space of Large Language Models (LLMs), aiming to attain few-shot performance at zero-shot cost. However,…

计算与语言 · 计算机科学 2025-09-30 Jiaqian Li , Yanshu Li , Ligong Han , Ruixiang Tang , Wenya Wang

In-context learning (ICL) enables large language models (LLMs) to perform downstream tasks through advanced prompting and high-quality demonstrations. However, traditional ICL paradigms encounter significant limitations in complex reasoning…

计算与语言 · 计算机科学 2025-06-03 Jinyang Wu , Mingkuan Feng , Shuai Zhang , Feihu Che , Zengqi Wen , Chonghua Liao , Jianhua Tao

Inference-time scaling (ITS) in latent reasoning models typically relies on heuristic perturbations, such as dropout or fixed Gaussian noise, to generate diverse candidate trajectories. However, we show that stronger perturbations do not…

计算与语言 · 计算机科学 2026-03-19 Minghan Wang , Ye Bai , Thuy-Trang Vu , Ehsan Shareghi , Gholamreza Haffari

Conventional collaborative filtering techniques treat a top-n recommendations problem as a task of generating a list of the most relevant items. This formulation, however, disregards an opposite - avoiding recommendations with completely…

机器学习 · 计算机科学 2016-07-15 Evgeny Frolov , Ivan Oseledets

The integration of large language models (LLMs) with external tools has significantly expanded the capabilities of AI agents. However, as the diversity of both LLMs and tools increases, selecting the optimal model-tool combination becomes a…

计算与语言 · 计算机科学 2026-01-08 Jinyang Wu , Guocheng Zhai , Ruihan Jin , Jiahao Yuan , Yuhao Shen , Shuai Zhang , Zhengqi Wen , Jianhua Tao

Recommender systems are one of the most successful applications of machine learning and data science. They are successful in a wide variety of application domains, including e-commerce, media streaming content, email marketing, and…

信息检索 · 计算机科学 2023-04-04 Juan Pablo Equihua , Maged Ali , Henrik Nordmark , Berthold Lausen

Automatic speech recognition (ASR) is widely used in consumer electronics. ASR greatly improves the utility and accessibility of technology, but usually the output is only word sequences without punctuation. This can result in ambiguity in…

计算与语言 · 计算机科学 2021-02-23 Andrew Silva , Barry-John Theobald , Nicholas Apostoloff