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Real-time bidding (RTB) is an important mechanism in online display advertising, where a proper bid for each page view plays an essential role for good marketing results. Budget constrained bidding is a typical scenario in RTB where the…

人工智能 · 计算机科学 2018-10-24 Di Wu , Xiujun Chen , Xun Yang , Hao Wang , Qing Tan , Xiaoxun Zhang , Jian Xu , Kun Gai

In this paper, we investigate a quality of experience (QoE)-aware resource allocation problem for reconfigurable intelligent surface (RIS)-assisted digital twin (DT) interaction with uncertain evolution. In the considered system, mobile…

网络与互联网体系结构 · 计算机科学 2025-05-23 Jiayuan Chen , Yuxiang Li , Changyan Yi , Shimin Gong

Modern content platforms offer paid promotion to mitigate cold start by allocating exposure via auctions. Our empirical analysis reveals a counterintuitive flaw in this paradigm: while promotion rescues low-to-medium quality content, it can…

计算机科学与博弈论 · 计算机科学 2026-01-29 Yumou Liu , Zhenzhe Zheng , Jiang Rong , Yao Hu , Fan Wu , Guihai Chen

With the rapid development of online multimedia services, especially in e-commerce platforms, there is a pressing need for personalised recommendation systems that can effectively encode the diverse multi-modal content associated with each…

人工智能 · 计算机科学 2024-07-30 Zixuan Yi , Iadh Ounis

We introduce a new problem in unsupervised domain adaptation, termed as Generalized Universal Domain Adaptation (GUDA), which aims to achieve precise prediction of all target labels including unknown categories. GUDA bridges the gap between…

计算机视觉与模式识别 · 计算机科学 2023-08-31 Didi Zhu , Yinchuan Li , Yunfeng Shao , Jianye Hao , Fei Wu , Kun Kuang , Jun Xiao , Chao Wu

Generative recommendation commonly adopts a two-stage pipeline in which a learnable tokenizer maps items to discrete token sequences (i.e. identifiers) and an autoregressive generative recommender model (GRM) performs prediction based on…

信息检索 · 计算机科学 2026-04-01 Yuebo Feng , Jiahao Liu , Mingzhe Han , Dongsheng Li , Hansu Gu , Peng Zhang , Tun Lu , Ning Gu

Driving planning is a critical component of end-to-end (E2E) autonomous driving. However, prevailing Imitative E2E Planners often suffer from multimodal trajectory mode collapse, failing to produce diverse trajectory proposals. Meanwhile,…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Lin Liu , Caiyan Jia , Guanyi Yu , Ziying Song , JunQiao Li , Feiyang Jia , Peiliang Wu , Xiaoshuai Hao , Yadan Luo

Conventional generative models for materials discovery are predominantly trained and validated using data from Density Functional Theory (DFT) with approximate exchange-correlation functionals. This creates a fundamental bottleneck: these…

人工智能 · 计算机科学 2026-04-30 Mahule Roy

The advent of large language models (LLMs) has ushered in a new paradigm of search engines that use generative models to gather and summarize information to answer user queries. This emerging technology, which we formalize under the unified…

Generative Design (GD) has evolved as a transformative design approach, employing advanced algorithms and AI to create diverse and innovative solutions beyond traditional constraints. Despite its success, GD faces significant challenges…

计算机视觉与模式识别 · 计算机科学 2024-03-20 Jihoon Kim , Yongmin Kwon , Namwoo Kang

A risk-averse preview-based $Q$-learning planner is presented for navigation of autonomous vehicles. To this end, the multi-lane road ahead of a vehicle is represented by a finite-state non-stationary Markov decision process (MDP). A risk…

系统与控制 · 电气工程与系统科学 2022-10-19 Majid Mazouchi , Subramanya Nageshrao , Hamidreza Modares

We study a game between autobidding algorithms that compete in an online advertising platform. Each autobidder is tasked with maximizing its advertiser's total value over multiple rounds of a repeated auction, subject to budget and…

计算机科学与博弈论 · 计算机科学 2024-12-03 Brendan Lucier , Sarath Pattathil , Aleksandrs Slivkins , Mengxiao Zhang

This paper proposes a safe reinforcement learning algorithm for generation bidding decisions and unit maintenance scheduling in a competitive electricity market environment. In this problem, each unit aims to find a bidding strategy that…

系统与控制 · 电气工程与系统科学 2021-12-21 Pegah Rokhforoz , Olga Fink

Generative Retrieval (GR) is rapidly transforming e-commerce search by replacing traditional multi-stage pipelines with the autoregressive decoding of structured Semantic IDs (SIDs). Despite this architectural efficiency, aligning GR models…

信息检索 · 计算机科学 2026-04-29 Zhiguo Chen , Guohao Sun , Yiming Qiu , Xingzhi Yao , Mingming Li , Huimu Wang , Yangqi Zhang , Songlin Wang , Sulong Xu

This study presents a generative optimization framework that builds on a fine-tuned diffusion model and reward-directed sampling to generate high-performance engineering designs. The framework adopts a parametric representation of the…

机器学习 · 计算机科学 2025-08-05 Hadi Keramati , Patrick Kirchen , Mohammed Hannan , Rajeev K. Jaiman

In a multi-stage recommendation system, reranking plays a crucial role in modeling intra-list correlations among items. A key challenge lies in exploring optimal sequences within the combinatorial space of permutations. Recent research…

信息检索 · 计算机科学 2025-10-30 Zhijie Lin , Zhuofeng Li , Chenglei Dai , Wentian Bao , Shuai Lin , Enyun Yu , Haoxiang Zhang , Liang Zhao

Graphical User Interface (GUI) action grounding is a critical step in GUI automation that maps language instructions to actionable elements on GUI screens. Most recent works of GUI action grounding leverage large GUI datasets to fine-tune…

计算与语言 · 计算机科学 2025-01-28 Yue Fan , Handong Zhao , Ruiyi Zhang , Yu Shen , Xin Eric Wang , Gang Wu

Pre-search query recommendation, widely known as HintQ on Taobao's homepage, plays a vital role in intent capture and demand discovery, yet traditional methods suffer from shallow semantics, poor cold-start performance and low serendipity…

信息检索 · 计算机科学 2026-03-23 Jingcao Xu , Jianyun Zou , Renkai Yang , Zili Geng , Qiang Liu , Haihong Tang

World model-based searching and planning are widely recognized as a promising path toward human-level physical intelligence. However, current driving world models primarily rely on video diffusion models, which specialize in visual…

计算机视觉与模式识别 · 计算机科学 2024-12-25 Yuntao Chen , Yuqi Wang , Zhaoxiang Zhang

Generative recommendation (GR) typically first quantizes continuous item embeddings into multi-level semantic IDs (SIDs), and then generates the next item via autoregressive decoding. Although existing methods are already competitive in…

信息检索 · 计算机科学 2026-01-30 Lingyu Mu , Hao Deng , Haibo Xing , Jinxin Hu , Yu Zhang , Xiaoyi Zeng , Jing Zhang