Search Results for author: Young-joo Chung

Found 9 papers, 3 papers with code

Position Bias Estimation with Item Embedding for Sparse Dataset

no code implementations10 May 2023 Shion Ishikawa, Yun Ching Liu, Young-joo Chung, Yu Hirate

Using a public dataset and internal carousel advertisement click dataset, we empirically show that item embedding with Latent Semantic Indexing (LSI) and Variational Auto-Encoder (VAE) improves the accuracy of position bias estimation and the estimated position bias enhances Learning to Rank performance.

Denoising Learning-To-Rank +2

Meta-Shop: Improving Item Advertisement For Small Businesses

no code implementations2 Dec 2022 Yang Shi, Guannan Liang, Young-joo Chung

Training samples in RS can be highly biased toward popular businesses with sufficient sales and can decrease advertising performance for small businesses.

Meta-Learning Recommendation Systems

One-class Recommendation Systems with the Hinge Pairwise Distance Loss and Orthogonal Representations

1 code implementation31 Aug 2022 Ramin Raziperchikolaei, Young-joo Chung

In one-class recommendation systems, the goal is to learn a model from a small set of interacted users and items and then identify the positively-related user-item pairs among a large number of pairs with unknown interactions.

Recommendation Systems

Dynamic collaborative filtering Thompson Sampling for cross-domain advertisements recommendation

no code implementations25 Aug 2022 Shion Ishikawa, Young-joo Chung, Yu Hirate

We first show transferring knowledge and incorporating temporal dynamics improve the performance of the baseline models on a synthetic dataset.

Collaborative Filtering Recommendation Systems +1

Learning Similarity Preserving Binary Codes for Recommender Systems

no code implementations18 Apr 2022 Yang Shi, Young-joo Chung

We conducted experiments on MovieLens1M, Amazon product review, Ichiba purchase dataset and confirmed CCSR outperformed the existing matrix factorization-based methods.

Binarization Cross-Modal Retrieval +2

Simultaneous Learning of the Inputs and Parameters in Neural Collaborative Filtering

no code implementations14 Mar 2022 Ramin Raziperchikolaei, Young-joo Chung

Then, we propose to learn the value of the non-zero elements of the inputs jointly with the neural network parameters.

Collaborative Filtering

Efficient Cross-Modal Retrieval via Deep Binary Hashing and Quantization

1 code implementation15 Feb 2022 Yang Shi, Young-joo Chung

We simultaneously learn binary hash codes and quantization codes to preserve semantic information in multiple modalities by an end-to-end deep learning architecture.

Cross-Modal Retrieval Deep Hashing +1

Recommending Short-lived Dynamic Packages for Golf Booking Services

no code implementations13 Mar 2021 Robin Swezey, Young-joo Chung

We introduce an approach to recommending short-lived dynamic packages for golf booking services.

Clustering Collaborative Filtering +1

Neural Representations in Hybrid Recommender Systems: Prediction versus Regularization

1 code implementation12 Oct 2020 Ramin Raziperchikolaei, Tianyu Li, Young-joo Chung

We also apply the NRP framework to a direct neural network structure which predicts the ratings without reconstructing the user and item information.

Recommendation Systems

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