activity
20242026
most citedThe Amazon Nova Family of Models: Technical Report and Model Card

2 citations · 2 across the 17 of their papers we have counts for

collaborators

17 papers

cs.IR2026

Beyond Semantic IDs: Encoding Business-Value Ranking into Document Identifiers for Generative Retrieval

Gui Ling, Zhihong Chen, Yu Li +7

Generative Retrieval (GR) formulates retrieval as a sequence-to-sequence generation task, assigning each document a document identifier (DocID) and retrieving it through autoregres…

cs.IR2026

Pailitao-VL: Unified Embedding and Reranker for Real-Time Multi-Modal Industrial Search

Lei Chen, Chen Ju, Xu Chen +13

In this work, we presented Pailitao-VL, a comprehensive multi-modal retrieval system engineered for high-precision, real-time industrial search. We here address three critical chal…

cs.LG2026

Zenith: Scaling up Ranking Models for Billion-scale Livestreaming Recommendation

Ruifeng Zhang, Zexi Huang, Zikai Wang +11

Accurately capturing feature interactions is essential in recommender systems, and recent trends show that scaling up model capacity could be a key driver for next-level predictive…

cs.DC2026

Canzona: A Unified, Asynchronous, and Load-Balanced Framework for Distributed Matrix-based Optimizers

Liangyu Wang, Siqi Zhang, Junjie Wang +7

The scaling of Large Language Models (LLMs) drives interest in matrix-based optimizers (e.g., Shampoo, Muon, SOAP) for their convergence efficiency; yet their requirement for holis…

cs.CV2026

E-VAds: An E-commerce Short Videos Understanding Benchmark for MLLMs

Xianjie Liu, Yiman Hu, Liang Wu +4

E-commerce short videos represent a high-revenue segment of the online video industry characterized by a goal-driven format and dense multi-modal signals. Current models often stru…

cs.AI2026

ShopSimulator: Evaluating and Exploring RL-Driven LLM Agent for Shopping Assistants

Pei Wang, Yanan Wu, Xiaoshuai Song +13

Large language model (LLM)-based agents are increasingly deployed in e-commerce shopping. To perform thorough, user-tailored product searches, agents should interpret personal pref…

cs.AI2026

Multi-Behavior Sequential Modeling with Transition-Aware Graph Attention Network for E-Commerce Recommendation

Hanqi Jin, Gaoming Yang, Zhangming Chan +7

User interactions on e-commerce platforms are inherently diverse, involving behaviors such as clicking, favoriting, adding to cart, and purchasing. The transitions between these be…

cs.AI2026

DecisionLLM: Large Language Models for Long Sequence Decision Exploration

Xiaowei Lv, Zhilin Zhang, Yijun Li +10

Long-sequence decision-making, which is usually addressed through reinforcement learning (RL), is a critical component for optimizing strategic operations in dynamic environments,…

cs.SD2026

A Semantically Consistent Dataset for Data-Efficient Query-Based Universal Sound Separation

Kai Li, Jintao Cheng, Chang Zeng +5

Query-based universal sound separation is fundamental to intelligent auditory systems, aiming to isolate specific sources from mixtures. Despite recent advances, existing methods c…

cs.IR2025

Beyond Existing Retrievals: Cross-Scenario Incremental Sample Learning Framework

Tao Wang, Xun Luo, Jinlong Guo +4

The parallelized multi-retrieval architecture has been widely adopted in large-scale recommender systems for its computational efficiency and comprehensive coverage of user interes…

cs.AI2025

Unbiased Platform-Level Causal Estimation for Search Systems: A Competitive Isolation PSM-DID Framework

Ying Song, Yijing Wang, Hui Yang +12

Evaluating platform-level interventions in search-based two-sided marketplaces is fundamentally challenged by systemic effects such as spillovers and network interference. While wi…

cs.IR2025

Retrieval-GRPO: A Multi-Objective Reinforcement Learning Framework for Dense Retrieval in Taobao Search

Xingxian Liu, Dongshuai Li, Jiahui Wan +7

Dense retrieval, as the core component of e-commerce search engines, maps user queries and items into a unified semantic space through pre-trained embedding models to enable large-…

cs.IR2025

GSID: Generative Semantic Indexing for E-Commerce Product Understanding

Haiyang Yang, Qinye Xie, Qingheng Zhang +7

Structured representation of product information is a major bottleneck for the efficiency of e-commerce platforms, especially in second-hand ecommerce platforms. Currently, most pr…

cs.CL2025

InvestAlign: Overcoming Data Scarcity in Aligning Large Language Models with Investor Decision-Making Processes under Herd Behavior

Huisheng Wang, Zhuoshi Pan, Hangjing Zhang +3

Aligning Large Language Models (LLMs) with investor decision-making processes under herd behavior is a critical challenge in behavioral finance, which grapples with a fundamental l…

cs.AI2025★ 2 cited

The Amazon Nova Family of Models: Technical Report and Model Card

Amazon AGI, Aaron Langford, Aayush Shah +783

We present Amazon Nova, a new generation of state-of-the-art foundation models that deliver frontier intelligence and industry-leading price performance. Amazon Nova Pro is a highl…

cs.LG2025

D3: Diversity, Difficulty, and Dependability-Aware Data Selection for Sample-Efficient LLM Instruction Tuning

Jia Zhang, Chen-Xi Zhang, Yao Liu +5

Recent advancements in instruction tuning for large language models (LLMs) suggest that a small, high-quality dataset can significantly equip LLMs with instruction-following capabi…

cs.CL2024

MPPO: Multi Pair-wise Preference Optimization for LLMs with Arbitrary Negative Samples

Shuo Xie, Fangzhi Zhu, Jiahui Wang +6

Aligning Large Language Models (LLMs) with human feedback is crucial for their development. Existing preference optimization methods such as DPO and KTO, while improved based on Re…