Search Results for author: Yifei Jin

Found 7 papers, 2 papers with code

SVM via Saddle Point Optimization: New Bounds and Distributed Algorithms

no code implementations20 May 2017 Yifei Jin, Lingxiao Huang, Jian Li

Our algorithms achieve $(1-\epsilon)$-approximations with running time $\tilde{O}(nd+n\sqrt{d / \epsilon})$ for both variants, where $n$ is the number of points and $d$ is the dimensionality.

DoubleEnsemble: A New Ensemble Method Based on Sample Reweighting and Feature Selection for Financial Data Analysis

1 code implementation3 Oct 2020 Chuheng Zhang, Yuanqi Li, Xi Chen, Yifei Jin, Pingzhong Tang, Jian Li

Modern machine learning models (such as deep neural networks and boosting decision tree models) have become increasingly popular in financial market prediction, due to their superior capacity to extract complex non-linear patterns.

BIG-bench Machine Learning feature selection

A Graph Attention Learning Approach to Antenna Tilt Optimization

no code implementations27 Dec 2021 Yifei Jin, Filippo Vannella, Maxime Bouton, Jaeseong Jeong, Ezeddin Al Hakim

GAQ relies on a graph attention mechanism to select relevant neighbors information, improve the agent state representation, and update the tilt control policy based on a history of observations using a Deep Q-Network (DQN).

Graph Attention Q-Learning +1

Open World Learning Graph Convolution for Latency Estimation in Routing Networks

no code implementations8 Jul 2022 Yifei Jin, Marios Daoutis, Sarunas Girdzijauskas, Aristides Gionis

Accurate routing network status estimation is a key component in Software Defined Networking.

Learning Cellular Coverage from Real Network Configurations using GNNs

1 code implementation20 Apr 2023 Yifei Jin, Marios Daoutis, Sarunas Girdzijauskas, Aristides Gionis

Cellular coverage quality estimation has been a critical task for self-organized networks.

Are We Wasting Time? A Fast, Accurate Performance Evaluation Framework for Knowledge Graph Link Predictors

no code implementations25 Jan 2024 Filip Cornell, Yifei Jin, Jussi Karlgren, Sarunas Girdzijauskas

First, we empirically find and theoretically motivate why sampling uniformly at random vastly overestimates the ranking performance of a method.

Cannot find the paper you are looking for? You can Submit a new open access paper.