activity
20242026
collaborators

7 papers

cs.CL2026

Customer-Agent: Overcoming Context Limitations in Ultra-Long Shopping Trajectories via Tool-Augmented Agents and RLVR

Hongye Liu, Rongmei Lin, Anurag Kashyap +4

Understanding customer shopping trajectories is essential for enabling personalized shopping experiences. However, shopping records (i.e., customer's search, clicks, purchases, etc…

cs.CL2026

ByteFlow: Language Modeling through Adaptive Byte Compression without a Tokenizer

Chunyuan Deng, Sanket Lokegaonkar, Colin Lockard +3

Modern language models still rely on fixed, pre-defined subword tokenizations. Once a tokenizer is trained, the LM can only operate at this fixed level of granularity, which often…

cs.CL2026

Stepwise Penalization for Length-Efficient Chain-of-Thought Reasoning

Xintong Li, Sha Li, Rongmei Lin +10

Large reasoning models improve with more test-time computation, but often overthink, producing unnecessarily long chains-of-thought that raise cost without improving accuracy. Prio…

cs.CL2025

Wizard of Shopping: Target-Oriented E-commerce Dialogue Generation with Decision Tree Branching

Xiangci Li, Zhiyu Chen, Jason Ingyu Choi +4

The goal of conversational product search (CPS) is to develop an intelligent, chat-based shopping assistant that can directly interact with customers to understand shopping intents…

cs.IR2024

Identifying High Consideration E-Commerce Search Queries

Zhiyu Chen, Jason Choi, Besnik Fetahu +1

In e-commerce, high consideration search missions typically require careful and elaborate decision making, and involve a substantial research investment from customers. We consider…

cs.CL2024

Generative Explore-Exploit: Training-free Optimization of Generative Recommender Systems using LLM Optimizers

Lütfi Kerem Senel, Besnik Fetahu, Davis Yoshida +5

Recommender systems are widely used to suggest engaging content, and Large Language Models (LLMs) have given rise to generative recommenders. Such systems can directly generate ite…