# Matrix Completion

131 papers with code • 0 benchmarks • 4 datasets

**Matrix Completion** is a method for recovering lost information. It originates from machine learning and usually deals with highly sparse matrices. Missing or unknown data is estimated using the low-rank matrix of the known data.

Source: A Fast Matrix-Completion-Based Approach for Recommendation Systems

## Benchmarks

These leaderboards are used to track progress in Matrix Completion
## Libraries

Use these libraries to find Matrix Completion models and implementations## Most implemented papers

# Graph Convolutional Matrix Completion

We consider matrix completion for recommender systems from the point of view of link prediction on graphs.

# Matrix Completion and Low-Rank SVD via Fast Alternating Least Squares

The matrix-completion problem has attracted a lot of attention, largely as a result of the celebrated Netflix competition.

# Hybrid Recommender System based on Autoencoders

A standard model for Recommender Systems is the Matrix Completion setting: given partially known matrix of ratings given by users (rows) to items (columns), infer the unknown ratings.

# Estimating Missing Data in Temporal Data Streams Using Multi-directional Recurrent Neural Networks

Existing methods address this estimation problem by interpolating within data streams or imputing across data streams (both of which ignore important information) or ignoring the temporal aspect of the data and imposing strong assumptions about the nature of the data-generating process and/or the pattern of missing data (both of which are especially problematic for medical data).

# An Exact and Robust Conformal Inference Method for Counterfactual and Synthetic Controls

We introduce new inference procedures for counterfactual and synthetic control methods for policy evaluation.

# Sequence-Aware Recommender Systems

In this work we review existing works that consider information from such sequentially-ordered user- item interaction logs in the recommendation process.

# Unsupervised Metric Learning in Presence of Missing Data

Here, we present a new algorithm MR-MISSING that extends these previous algorithms and can be used to compute low dimensional representation on data sets with missing entries.

# Inductive Matrix Completion Based on Graph Neural Networks

Under the extreme setting where not any side information is available other than the matrix to complete, can we still learn an inductive matrix completion model?

# GLocal-K: Global and Local Kernels for Recommender Systems

Then, the pre-trained auto encoder is fine-tuned with the rating matrix, produced by a convolution-based global kernel, which captures the characteristics of each item.

# Matrix Completion on Graphs

Our main goal is thus to find a low-rank solution that is structured by the proximities of rows and columns encoded by graphs.