Search Results for author: Wang Jun

Found 8 papers, 0 papers with code

Threshold distribution of equal states for quantitative amplitude fluctuations

no code implementations24 Sep 2023 Yao Wenpo, Yao Wenli, Wang Jun

Synthetic signals and detrend-filtered sleep EEGs have no neighboring equal values; however, tDES can effectively measure the amplitude fluctuations within these data.

EEG

Deep Doubly Supervised Transfer Network for Diagnosis of Breast Cancer with Imbalanced Ultrasound Imaging Modalities

no code implementations29 Jun 2020 Han Xiangmin, Wang Jun, Zhou Weijun, Chang Cai, Ying Shihui, Shi Jun

However, joint utilization of both BUS and EUS is not popular due to the lack of EUS devices in rural hospitals, which arouses a novel modality im-balance problem in computer-aided diagnosis (CAD) for breast cancers.

Transfer Learning

On the Equilibrium of Query Reformulation and Document Retrieval

no code implementations20 Jul 2018 Zou Shihao, Tao Guanyu, Wang Jun, Zhang Weinan, Zhang Dell

In this paper, we study jointly query reformulation and document relevance estimation, the two essential aspects of information retrieval (IR).

Information Retrieval Retrieval +1

Differentially Private Neighborhood-based Recommender Systems

no code implementations10 Mar 2017 Wang Jun, Tang Qiang

We also compare our solutions to the recent differentially private matrix factorization (MF) recommender systems, and show that our solutions achieve better accuracy when the privacy budget is reasonably small.

Recommendation Systems

A Term-Based Methodology for Query Reformulation Understanding

no code implementations19 Jan 2016 Sloan Marc, Yang Hui, Wang Jun

Key to any research involving session search is the understanding of how a user's queries evolve throughout the session.

Session Search

Dynamic Information Retrieval: Theoretical Framework and Application

no code implementations18 Jan 2016 Sloan Marc, Wang Jun

Theoretical frameworks like the Probability Ranking Principle and its more recent Interactive Information Retrieval variant have guided the development of ranking and retrieval algorithms for decades, yet they are not capable of helping us model problems in Dynamic Information Retrieval which exhibit the following three properties; an observable user signal, retrieval over multiple stages and an overall search intent.

Information Retrieval Retrieval

A Theoretical Analysis of Two-Stage Recommendation for Cold-Start Collaborative Filtering

no code implementations18 Jan 2016 Zhao Xiaoxue, Wang Jun

In this paper, we present a theoretical framework for tackling the cold-start collaborative filtering problem, where unknown targets (items or users) keep coming to the system, and there is a limited number of resources (users or items) that can be allocated and related to them.

Collaborative Filtering

An Empirical Study on Display Ad Impression Viewability Measurements

no code implementations21 May 2015 Zhang Weinan, Pan Ye, Zhou Tianxiong, Wang Jun

Display advertising normally charges advertisers for every single ad impression.

Position

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