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Question recommendation is a task that sequentially recommends questions for students to enhance their learning efficiency. That is, given the learning history and learning target of a student, a question recommender is supposed to select…

信息检索 · 计算机科学 2024-09-11 Yuxuan Liu , Haipeng Liu , Ting Long

High accuracy video label prediction (classification) models are attributed to large scale data. These data could be frame feature sequences extracted by a pre-trained convolutional-neural-network, which promote the efficiency for creating…

计算机视觉与模式识别 · 计算机科学 2019-06-04 Feng Mao , Xiang Wu , Hui Xue , Rong Zhang

Despite progress in video large language models (Video-LLMs), research on instructional video understanding, crucial for enhancing access to instructional content, remains insufficient. To address this, we introduce InstructionBench, an…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Haiwan Wei , Yitian Yuan , Xiaohan Lan , Wei Ke , Lin Ma

The ability to reason about temporal and causal events from videos lies at the core of human intelligence. Most video reasoning benchmarks, however, focus on pattern recognition from complex visual and language input, instead of on causal…

计算机视觉与模式识别 · 计算机科学 2020-03-10 Kexin Yi , Chuang Gan , Yunzhu Li , Pushmeet Kohli , Jiajun Wu , Antonio Torralba , Joshua B. Tenenbaum

Discovering and accessing specific content within educational video bases is a challenging task, mainly because of the abundance of video content and its diversity. Recommender systems are often used to enhance the ability to find and…

In the 3D studios the animation scene files undergo a process called as rendering, where the 3D wire frame models are converted into 3D photorealistic images. As the rendering process is both a computationally intensive and a time consuming…

分布式、并行与集群计算 · 计算机科学 2016-12-01 Annette J Ruby , Banu W Aisha , Chandran P Subash

State of the art music recommender systems mainly rely on either matrix factorization-based collaborative filtering approaches or deep learning architectures. Deep learning models usually use metadata for content-based filtering or predict…

信息检索 · 计算机科学 2019-12-20 Khalil Damak , Olfa Nasraoui

Despite advances in the application of MLLMs for various video tasks, video event prediction (VEP) remains relatively underexplored. VEP requires the model to perform fine-grained temporal modeling of videos and establish logical…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Qile Su , Jing Tang , Rui Chen , Lei Sun , Xiangxiang Chu

Volumetric video, also known as hologram video, is a novel medium that portrays natural content in Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR). It is expected to be the next-gen video technology and a prevalent use…

计算机视觉与模式识别 · 计算机科学 2025-06-06 Jie Li , Zhixin Li , Zhi Liu , Pengyuan Zhou , Richang Hong , Qiyue Li , Han Hu

Online travel platforms (OTPs), e.g., Ctrip.com or Fliggy.com, can effectively provide travel-related products or services to users. In this paper, we focus on the multi-scenario click-through rate (CTR) prediction, i.e., training a unified…

信息检索 · 计算机科学 2023-04-18 Peilin Chen , Hong Wen , Jing Zhang , Fuyu Lv , Zhao Li , Qijie Shen , Wanjie Tao , Ying Zhou , Chao Zhang

The cold-start problem is a long-standing challenge in recommender systems. As a promising solution, content-based generative models usually project a cold-start item's content onto a warm-start item embedding to capture collaborative…

信息检索 · 计算机科学 2023-02-23 Zhihui Zhou , Lilin Zhang , Ning Yang

Recommendation systems are essential ingredients in producing matches between products and buyers. Despite their ubiquity, they face two important challenges. First, they are data-intensive, a feature that precludes sophisticated…

综合经济学 · 经济学 2020-10-08 Pedro M. Gardete , Carlos D. Santos

Given an untrimmed video and a natural language query, Natural Language Video Localization (NLVL) aims to identify the video moment described by the query. To address this task, existing methods can be roughly grouped into two groups: 1)…

计算机视觉与模式识别 · 计算机科学 2022-11-02 Shaoning Xiao , Long Chen , Jian Shao , Yueting Zhuang , Jun Xiao

The rapid proliferation of short videos on social media platforms presents unique challenges and opportunities for recommendation systems. Users exhibit diverse preferences, and the responses resulting from different strategies often…

信息检索 · 计算机科学 2025-12-02 Chenhao Zhai , Chang Meng , Xueliang Wang , Shuchang Liu , Xiaolong Hu , Shisong Tang , Xiaoqiang Feng , Xiu Li

Cold-start problem is one of the long-standing challenges in recommender systems, focusing on accurately modeling new or interaction-limited users or items to provide better recommendations. Due to the diversification of internet platforms…

The rapid growth of short videos has necessitated effective recommender systems to match users with content tailored to their evolving preferences. Current video recommendation models primarily treat each video as a whole, overlooking the…

信息检索 · 计算机科学 2025-05-06 Zhiyu He , Zhixin Ling , Jiayu Li , Zhiqiang Guo , Weizhi Ma , Xinchen Luo , Min Zhang , Guorui Zhou

Reinforcement Learning with Verifiable Rewards (RLVR) has substantially advanced the video understanding capabilities of Multimodal Large Language Models (MLLMs). However, the rapid progress of MLLMs is outpacing the complexity of existing…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Zefeng He , Xiaoye Qu , Yafu Li , Siyuan Huang , Daizong Liu , Yu Cheng

Recommender systems are popular in e-commerce as they suggest items of interest to users. Researchers have addressed the cold-start problem where either the user or the item is new. However, the situation with both new user and new item has…

信息检索 · 计算机科学 2013-05-08 Fan Min , William Zhu

The query-based moment retrieval is a problem of localising a specific clip from an untrimmed video according a query sentence. This is a challenging task that requires interpretation of both the natural language query and the video…

计算机视觉与模式识别 · 计算机科学 2020-10-08 Mayu Otani , Yuta Nakashima , Esa Rahtu , Janne Heikkilä

We focus on the problem of streaming recommender system and explore novel collaborative filtering algorithms to handle the data dynamicity and complexity in a streaming manner. Although deep neural networks have demonstrated the…

机器学习 · 计算机科学 2019-06-12 Qingquan Song , Shiyu Chang , Xia Hu