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Hui Shi

4 accepted papers

2023

Everyone's Preference Changes Differently: A Weighted Multi-Interest Model For Retrieval

ICML 2023poster

User embeddings (vectorized representations of a user) are essential in recommendation systems. Numerous approaches have been proposed to construct a representation for the user in order to find similar items for retrieval tasks, and they have been proven effective in industrial recommendation syste…

Cited by 9SourcePDFScholar
2022

Learning Bounded Context-Free-Grammar via LSTM and the Transformer: Difference and the Explanations

AAAI 2022technical

Long Short-Term Memory (LSTM) and Transformers are two popular neural architectures used for natural language processing tasks. Theoretical results show that both are Turing-complete and can represent any context-free language (CFL).In practice, it is often observed that Transformer models have bett…

2021

Continuous Cnn For Nonuniform Time Series

ICASSP 2021accepted

CNN for time series data implicitly assumes that the data are uniformly sampled, whereas many event-based and multi-modal data are nonuniform or have heterogeneous sampling rates. Directly applying regular CNN to nonuniform time series is ungrounded, because it is unable to recognize and extract com…

Cited by 0SourceScholar
2020

Deep Symbolic Superoptimization Without Human Knowledge

ICLR 2020poster

Deep symbolic superoptimization refers to the task of applying deep learning methods to simplify symbolic expressions. Existing approaches either perform supervised training on human-constructed datasets that defines equivalent expression pairs, or apply reinforcement learning with human-defined…

Cited by 8SourcecodeScholar