Machine Learning
Data-driven approaches to design intelligent algorithms.
MERL has a long history of research activity in machine learning, including the development of various boosting algorithms and contributing to the theory and practice of highly scalable collaborative filtering. Our recent work has focused on deep learning and reinforcement learning, with application to a wide range of applications including automotive, robotics, factory automation, transportation, as well as building and home systems.
Quick Links
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Researchers
Toshiaki
Koike-Akino
Ye
Wang
Jonathan
Le Roux
Ankush
Chakrabarty
Gordon
Wichern
Anoop
Cherian
Michael J.
Jones
Tim K.
Marks
Kieran
Parsons
Pu
(Perry)
WangStefano
Di Cairano
Philip V.
Orlik
Christopher R.
Laughman
Daniel N.
Nikovski
Devesh K.
Jha
Diego
Romeres
Chiori
Hori
Bingnan
Wang
Jing
Liu
Suhas
Lohit
Yebin
Wang
Hassan
Mansour
Matthew
Brand
Petros T.
Boufounos
Kuan-Chuan
Peng
Moitreya
Chatterjee
Arvind
Raghunathan
Abraham P.
Vinod
Vedang M.
Deshpande
Jianlin
Guo
Yoshiki
Masuyama
Siddarth
Jain
Scott A.
Bortoff
Pedro
Miraldo
Saviz
Mowlavi
Hongtao
Qiao
William S.
Yerazunis
Radu
Corcodel
Chungwei
Lin
Dehong
Liu
Joshua
Rapp
Hongbo
Sun
Wataru
Tsujita
Wael H.
Ali
Yanting
Ma
Anthony
Vetro
Jinyun
Zhang
Purnanand
Elango
Abraham
Goldsmith
Alexander
Schperberg
Avishai
Weiss
Kenji
Inomata
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Awards
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AWARD Mitsubishi Electric Team Wins Awards at GalFer Contest Date: June 23, 2025
Awarded to: Bingnan Wang, Tatsuya Yamamoto, Yusuke Sakamoto, Siyuan Sun, Toshiaki Koike-Akino, and Ye Wang
MERL Contacts: Toshiaki Koike-Akino; Bingnan Wang; Ye Wang
Research Areas: Machine Learning, Multi-Physical Modeling, OptimizationBrief- The MELSUR (Mitsubishi Electric SURrogate) team, consisting of a group of MERL and Mitsubishi Electric researchers, ranked first in two out of three categories in the GalFer Contest.
The GalFer (Galileo Ferraris) contest aims to compare the accuracy and efficiency of data-driven methodologies for the multi-physics simulation of traction electric machines. A total of 26 teams worldwide participated in the contest, which consists of three categories. The MELSUR team, including MERL staff Bingnan Wang, Toshiaki Koike-Akino, Ye Wang, MERL intern Siyuan Sun, Mitsubishi Electric researchers Tatsuya Yamamoto and Yusuke Sakamoto, ranked first for the category of "Novelty" and "Interpolation". The results were announced during an award ceremony at the COMPUMAG 2025 conference in Naples, Italy.
- The MELSUR (Mitsubishi Electric SURrogate) team, consisting of a group of MERL and Mitsubishi Electric researchers, ranked first in two out of three categories in the GalFer Contest.
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AWARD MERL work receives IEEE Transactions on Automation Science and Engineering Best New Application Paper Award from IEEE Robotics and Automation Society Date: May 19, 2025
Awarded to: Yehan Ma, Yebin Wang, Stefano Di Cairano, Toshiaki Koike-Akino, Jianlin Guo, Philip Orlik, Xinping Guan and Chenyang Lu
MERL Contacts: Stefano Di Cairano; Jianlin Guo; Toshiaki Koike-Akino; Philip V. Orlik; Yebin Wang
Research Areas: Communications, Control, Machine LearningBrief- The paper “Smart Actuation for End-Edge Industrial Control Systems”, co-authored by MERL intern Yehan Ma, MERL researchers Yebin Wang, Stefano Di Cairano, Toshiaki Koike-Akino, Jianlin Guo, and Philip Orlik, and academic collaborators Xinping Guan and Chenyang Lu, was recognized as the Best New Application Paper of the IEEE Transactions on Automation Science and Engineering (T-ASE), for "a new industrial automation solution that ensures safety operation through coordinated co-design of edge model predictive control and local actuation".
The award recognizes the best application paper published in T-ASE over the previous calendar year, for the significance of new applications, technical merit, originality, potential impact on the field, and clarity of presentation.
- The paper “Smart Actuation for End-Edge Industrial Control Systems”, co-authored by MERL intern Yehan Ma, MERL researchers Yebin Wang, Stefano Di Cairano, Toshiaki Koike-Akino, Jianlin Guo, and Philip Orlik, and academic collaborators Xinping Guan and Chenyang Lu, was recognized as the Best New Application Paper of the IEEE Transactions on Automation Science and Engineering (T-ASE), for "a new industrial automation solution that ensures safety operation through coordinated co-design of edge model predictive control and local actuation".
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AWARD MERL Wins Awards at NeurIPS LLM Privacy Challenge Date: December 15, 2024
Awarded to: Jing Liu, Ye Wang, Toshiaki Koike-Akino, Tsunato Nakai, Kento Oonishi, Takuya Higashi
MERL Contacts: Toshiaki Koike-Akino; Jing Liu; Ye Wang
Research Areas: Artificial Intelligence, Machine Learning, Information SecurityBrief- The Mitsubishi Electric Privacy Enhancing Technologies (MEL-PETs) team, consisting of a collaboration of MERL and Mitsubishi Electric researchers, won awards at the NeurIPS 2024 Large Language Model (LLM) Privacy Challenge. In the Blue Team track of the challenge, we won the 3rd Place Award, and in the Red Team track, we won the Special Award for Practical Attack.
See All Awards for Machine Learning -
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News & Events
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NEWS Diego Romeres Delivers Invited Talks at Fraunhofer Italia and the University of Padua Date: July 16, 2025 - July 18, 2025
MERL Contact: Diego Romeres
Research Areas: Artificial Intelligence, Control, Machine Learning, Optimization, Robotics, Human-Computer InteractionBrief- MERL researcher Diego Romeres was invited to present MERL's latest research at two institutions in Italy this July, focusing on human-robot collaboration and LLM-driven assembly systems.
On July 16th, Dr. Romeres delivered a talk titled “Human-Robot Collaborative Assembly” at Fraunhofer Italia – Innovation Engineering Center (EIC) in Bolzano. His presentation showcased research on human-robot collaboration for efficient and flexible assembly processes. Fraunhofer Italia EIC is a non-profit research institute focused on enabling digital and sustainable transformation through applied innovation in close collaboration with both public and private sectors.
Two days later, on July 18th, Dr. Romeres was hosted by the University of Padua, one of Europe’s oldest and most renowned universities. His invited lecture, “Robot Assembly through Human Collaboration & Large Language Models”, explored how artificial intelligence can enhance human-robot synergy in complex assembly tasks.
- MERL researcher Diego Romeres was invited to present MERL's latest research at two institutions in Italy this July, focusing on human-robot collaboration and LLM-driven assembly systems.
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NEWS MERL researchers present 13 papers at ACC 2025 Date: July 8, 2025 - July 10, 2025
Where: Denver, USA
MERL Contacts: Ankush Chakrabarty; Vedang M. Deshpande; Stefano Di Cairano; Purnanand Elango; Jordan Leung; Saviz Mowlavi; Diego Romeres; Abraham P. Vinod; Yebin Wang; Avishai Weiss
Research Areas: Control, Dynamical Systems, Electric Systems, Machine Learning, Multi-Physical Modeling, RoboticsBrief- MERL researchers presented 13 papers at the recently concluded American Control Conference (ACC) 2025 in Denver, USA. The papers covered a wide range of topics including Bayesian optimization for personalized medicine, machine learning for battery performance in eVTOLs, model predictive control for space and building systems, process systems engineering for sustainability, GNSS-RTK optimization, convex set manipulation, PDE control, servo system modeling, battery fault diagnosis, truck fleet coordination, interactive motion planning, and satellite station keeping. Additionally, MERL researchers (Vedang Deshpande and Ankush Chakrabarty) organized an invited session on design and optimization of energy systems.
As a sponsor of the conference, MERL maintained a booth for open discussions with researchers and students, and hosted a special session to discuss highlights of MERL research and work philosophy.
- MERL researchers presented 13 papers at the recently concluded American Control Conference (ACC) 2025 in Denver, USA. The papers covered a wide range of topics including Bayesian optimization for personalized medicine, machine learning for battery performance in eVTOLs, model predictive control for space and building systems, process systems engineering for sustainability, GNSS-RTK optimization, convex set manipulation, PDE control, servo system modeling, battery fault diagnosis, truck fleet coordination, interactive motion planning, and satellite station keeping. Additionally, MERL researchers (Vedang Deshpande and Ankush Chakrabarty) organized an invited session on design and optimization of energy systems.
See All News & Events for Machine Learning -
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Research Highlights
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PS-NeuS: A Probability-guided Sampler for Neural Implicit Surface Rendering -
Quantum AI Technology -
TI2V-Zero: Zero-Shot Image Conditioning for Text-to-Video Diffusion Models -
Gear-NeRF: Free-Viewpoint Rendering and Tracking with Motion-Aware Spatio-Temporal Sampling -
Steered Diffusion -
Sustainable AI -
Edge-Assisted Internet of Vehicles for Smart Mobility -
Robust Machine Learning -
mmWave Beam-SNR Fingerprinting (mmBSF) -
Video Anomaly Detection -
Biosignal Processing for Human-Machine Interaction -
MERL Shopping Dataset -
Task-aware Unified Source Separation - Audio Examples
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Internships
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CI0080: Internship - Efficient AI
We are on the lookout for passionate and skilled interns to join our cutting-edge research team focused on developing efficient machine learning techniques for sustainability. This is an exciting opportunity to make a real impact in the field of AI and environmental conservation, with the aim of publishing at leading AI research venues.
What We're Looking For:
- Advanced research experience in generative models and computationally efficient models
- Hands-on skills for large language models (LLM), vision language models (VLM), large multi-modal models (LMM), foundation models (FoMo)
- Deep understanding of state-of-the-art machine learning methods
- Proficiency in Python and PyTorch
- Familiarity with various deep learning frameworks
- Ph.D. candidates who have completed at least half of their program
Internship Details:
- Duration: approximately 3 months
- Flexible start dates available
- Objective: publish research results at leading AI research venues
If you are a highly motivated individual with a passion for applying AI to sustainability challenges, we want to hear from you! This internship offers a unique chance to work on meaningful projects at the intersection of machine learning and environmental sustainability.
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ST0105: Internship - Surrogate Modeling for Sound Propagation
MERL is seeking a motivated and qualified individual to work on fast surrogate models for sound emission and propagation from complex vibrating structures, with applications in HVAC noise reduction. The ideal candidate will be a PhD student in engineering or related fields with a solid background in frequency-domain acoustic modeling and numerical techniques for partial differential equations (PDEs). Preferred skills include knowledge of the boundary element method (BEM), data-driven modeling, and physics-informed machine learning. Publication of the results obtained during the internship is expected. The duration is expected to be at least 3 months with a flexible start date.
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EA0151: Internship - Physics-informed machine learning
MERL is looking for a self-motivated intern to work on physics-informed machine learning with application to electric machine condition monitoring and predictive maintenance. The ideal candidate would be a Ph.D. student in electrical engineering or computer science with solid research background in electric machines, signal processing, and machine learning. Proficiency in Python and Matlab is required. The intern is expected to collaborate with MERL researchers to build machine learning model for multi-modal data analysis, prepare technical reports, and draft manuscripts for scientific publications. The total duration is anticipated to be 3-6 months. The start date is flexible. This internship requires work that can only be done at MERL.
See All Internships for Machine Learning -
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Openings
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CA0093: Research Scientist - Control for Autonomous Systems
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EA0042: Research Scientist - Control & Learning
See All Openings at MERL -
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Recent Publications
- "Toward Long-Tailed Online Anomaly Detection through Class-Agnostic Concepts", IEEE International Conference on Computer Vision (ICCV), October 2025.BibTeX TR2025-124 PDF Data
- @inproceedings{Yang2025oct,
- author = {Yang, Chiao-An and Peng, Kuan-Chuan and Yeh, Raymond},
- title = {{Toward Long-Tailed Online Anomaly Detection through Class-Agnostic Concepts}},
- booktitle = {IEEE International Conference on Computer Vision (ICCV)},
- year = 2025,
- month = oct,
- url = {https://www.merl.com/publications/TR2025-124}
- }
, - "Simulation-to-Reality Domain Adaptation for Motor Fault Detection", IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED), August 2025.BibTeX TR2025-126 PDF
- @inproceedings{Ji2025aug,
- author = {Ji, Dai-Yan and Wang, Bingnan and Inoue, Hiroshi and Kanemaru, Makoto},
- title = {{Simulation-to-Reality Domain Adaptation for Motor Fault Detection}},
- booktitle = {IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)},
- year = 2025,
- month = aug,
- url = {https://www.merl.com/publications/TR2025-126}
- }
, - "End-to-End Radar Human Segmentation with Differentiable Positional Encoding", European Signal Processing Conference (EUSIPCO), August 2025.BibTeX TR2025-125 PDF
- @inproceedings{Yataka2025aug,
- author = {Yataka, Ryoma and Wang, Pu and Boufounos, Petros T. and Takahashi, Ryuhei},
- title = {{End-to-End Radar Human Segmentation with Differentiable Positional Encoding}},
- booktitle = {European Signal Processing Conference (EUSIPCO)},
- year = 2025,
- month = aug,
- url = {https://www.merl.com/publications/TR2025-125}
- }
, - "HASRD: Hierarchical Acoustic and Semantic Representation Disentanglement", Interspeech, August 2025.BibTeX TR2025-122 PDF
- @inproceedings{Hussein2025aug,
- author = {Hussein, Amir and Khurana, Sameer and Wichern, Gordon and Germain, François G and {Le Roux}, Jonathan},
- title = {{HASRD: Hierarchical Acoustic and Semantic Representation Disentanglement}},
- booktitle = {Interspeech},
- year = 2025,
- month = aug,
- url = {https://www.merl.com/publications/TR2025-122}
- }
, - "Direction-Aware Neural Acoustic Fields for Few-Shot Interpolation of Ambisonic Impulse Responses", Interspeech, DOI: 10.21437/Interspeech.2025-1912, August 2025, pp. 933-937.BibTeX TR2025-120 PDF
- @inproceedings{Ick2025aug,
- author = {Ick, Christopher and Wichern, Gordon and Masuyama, Yoshiki and Germain, François G and {Le Roux}, Jonathan},
- title = {{Direction-Aware Neural Acoustic Fields for Few-Shot Interpolation of Ambisonic Impulse Responses}},
- booktitle = {Interspeech},
- year = 2025,
- pages = {933--937},
- month = aug,
- doi = {10.21437/Interspeech.2025-1912},
- url = {https://www.merl.com/publications/TR2025-120}
- }
, - "Factorized RVQ-GAN For Disentangled Speech Tokenization", Interspeech, August 2025.BibTeX TR2025-123 PDF
- @inproceedings{Khurana2025aug,
- author = {Khurana, Sameer and Klement, Dominik and Laurent, Antoine and Bobos, Dominik and Novosad, Juraj and Gazdik, Peter and Zhang, Ellen and Huang, Zilli and Hussein, Amir and Marxer, Ricard and Masuyama, Yoshiki and Aihara, Ryo and Hori, Chiori and Germain, François G and Wichern, Gordon and {Le Roux}, Jonathan},
- title = {{Factorized RVQ-GAN For Disentangled Speech Tokenization}},
- booktitle = {Interspeech},
- year = 2025,
- month = aug,
- url = {https://www.merl.com/publications/TR2025-123}
- }
, - "Investigating Continuous Autoregressive Generative Speech Enhancement", Interspeech, August 2025.BibTeX TR2025-119 PDF
- @inproceedings{Yang2025aug,
- author = {Yang, Haici and Wichern, Gordon and Aihara, Ryo and Masuyama, Yoshiki and Khurana, Sameer and Germain, François G and {Le Roux}, Jonathan},
- title = {{Investigating Continuous Autoregressive Generative Speech Enhancement}},
- booktitle = {Interspeech},
- year = 2025,
- month = aug,
- url = {https://www.merl.com/publications/TR2025-119}
- }
, - "Dynamic Sensor Scheduling for Spatio-temporal Monitoring of Water Bodies", IEEE Conference on Control Technology and Applications (CCTA), August 2025.BibTeX TR2025-117 PDF
- @inproceedings{Deshpande2025aug,
- author = {Deshpande, Vedang M. and Vinod, Abraham P.},
- title = {{Dynamic Sensor Scheduling for Spatio-temporal Monitoring of Water Bodies}},
- booktitle = {IEEE Conference on Control Technology and Applications (CCTA)},
- year = 2025,
- month = aug,
- url = {https://www.merl.com/publications/TR2025-117}
- }
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- "Toward Long-Tailed Online Anomaly Detection through Class-Agnostic Concepts", IEEE International Conference on Computer Vision (ICCV), October 2025.
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Videos
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Software & Data Downloads
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Generalization in Deep RL with a Robust Adaptation Module -
Subject- and Dataset-Aware Neural Field for HRTF Modeling -
Local Density-Based Anomaly Score Normalization for Domain Generalization -
MEL-PETs Joint-Context Attack for LLM Privacy Challenge -
Learned Born Operator for Reflection Tomographic Imaging -
MEL-PETs Defense for LLM Privacy Challenge -
Long-Tailed Online Anomaly Detection dataset -
Group Representation Networks -
Stabilizing Subject Transfer in EEG Classification with Divergence Estimation -
Task-Aware Unified Source Separation -
Retrieval-Augmented Neural Field for HRTF Upsampling and Personalization -
ComplexVAD Dataset -
Self-Monitored Inference-Time INtervention for Generative Music Transformers -
Radar dEtection TRansformer -
Millimeter-wave Multi-View Radar Dataset -
Gear Extensions of Neural Radiance Fields -
Long-Tailed Anomaly Detection Dataset -
Target-Speaker SEParation -
Pixel-Grounded Prototypical Part Networks -
Steered Diffusion -
BAyesian Network for adaptive SAmple Consensus -
Meta-Learning State Space Models -
Explainable Video Anomaly Localization -
Simple Multimodal Algorithmic Reasoning Task Dataset -
Partial Group Convolutional Neural Networks -
SOurce-free Cross-modal KnowledgE Transfer -
Audio-Visual-Language Embodied Navigation in 3D Environments -
Nonparametric Score Estimators -
3D MOrphable STyleGAN -
Instance Segmentation GAN -
Audio Visual Scene-Graph Segmentor -
Generalized One-class Discriminative Subspaces -
Hierarchical Musical Instrument Separation -
Generating Visual Dynamics from Sound and Context -
Adversarially-Contrastive Optimal Transport -
Online Feature Extractor Network -
MotionNet -
FoldingNet++ -
Quasi-Newton Trust Region Policy Optimization -
Landmarks’ Location, Uncertainty, and Visibility Likelihood -
Robust Iterative Data Estimation -
Gradient-based Nikaido-Isoda -
Circular Maze Environment -
Discriminative Subspace Pooling -
Kernel Correlation Network -
Fast Resampling on Point Clouds via Graphs -
FoldingNet -
Deep Category-Aware Semantic Edge Detection -
MERL Shopping Dataset -
Open Vocabulary Attribute Detection Dataset
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