Search Results for author: Martin Ester

Found 21 papers, 13 papers with code

Adversarially Balanced Representation for Continuous Treatment Effect Estimation

1 code implementation17 Dec 2023 Amirreza Kazemi, Martin Ester

Individual treatment effect (ITE) estimation requires adjusting for the covariate shift between populations with different treatments, and deep representation learning has shown great promise in learning a balanced representation of covariates.

counterfactual Representation Learning

TacoGFN: Target-conditioned GFlowNet for Structure-based Drug Design

1 code implementation5 Oct 2023 Tony Shen, Seonghwan Seo, Grayson Lee, Mohit Pandey, Jason R Smith, Artem Cherkasov, Woo Youn Kim, Martin Ester

Searching the vast chemical space for drug-like and synthesizable molecules with high binding affinity to a protein pocket is a challenging task in drug discovery.

Active Learning Drug Discovery

Semi-Supervised Junction Tree Variational Autoencoder for Molecular Property Prediction

1 code implementation10 Aug 2022 Atia Hamidizadeh, Tony Shen, Martin Ester

We propose SeMole, a method that augments the Junction Tree Variational Autoencoders, a state-of-the-art generative model for molecular graphs, with semi-supervised learning.

Drug Discovery Molecular Property Prediction +3

Subgroup Discovery in Unstructured Data

1 code implementation15 Jul 2022 Ali Arab, Dev Arora, Jialin Lu, Martin Ester

Subgroup discovery is a descriptive and exploratory data mining technique to identify subgroups in a population that exhibit interesting behavior with respect to a variable of interest.

Attribute Descriptive +1

A Comprehensive Survey on Deep Clustering: Taxonomy, Challenges, and Future Directions

1 code implementation15 Jun 2022 Sheng Zhou, Hongjia Xu, Zhuonan Zheng, Jiawei Chen, Zhao Li, Jiajun Bu, Jia Wu, Xin Wang, Wenwu Zhu, Martin Ester

Motivated by the tremendous success of deep learning in clustering, one of the most fundamental machine learning tasks, and the large number of recent advances in this direction, in this paper we conduct a comprehensive survey on deep clustering by proposing a new taxonomy of different state-of-the-art approaches.

Clustering Deep Clustering +1

Causal Inference from Small High-dimensional Datasets

no code implementations19 May 2022 Raquel Aoki, Martin Ester

Our experiments show that such an approach helps to bring stability to neural network-based methods and improve the treatment effect estimates in small high-dimensional datasets.

Causal Inference Transfer Learning +1

Multi-treatment Effect Estimation from Biomedical Data

1 code implementation14 Dec 2021 Raquel Aoki, Yizhou Chen, Martin Ester

This work proposes the M3E2, a multi-task learning neural network model to estimate the effect of multiple treatments.

Multi-Task Learning

An Interactive Visualization Tool for Understanding Active Learning

1 code implementation9 Nov 2021 Zihan Wang, Jialin Lu, Oliver Snow, Martin Ester

Despite recent progress in artificial intelligence and machine learning, many state-of-the-art methods suffer from a lack of explainability and transparency.

Active Learning BIG-bench Machine Learning

Neural Disjunctive Normal Form: Vertically Integrating Logic With Deep Learning For Classification

no code implementations1 Jan 2021 Jialin Lu, Martin Ester

We present Neural Disjunctive Normal Form (Neural DNF), a hybrid neuro- symbolic classifier that vertically integrates propositional logic with a deep neural network.

General Classification Inductive Bias

CoSam: An Efficient Collaborative Adaptive Sampler for Recommendation

no code implementations16 Nov 2020 Jiawei Chen, Chengquan Jiang, Can Wang, Sheng Zhou, Yan Feng, Chun Chen, Martin Ester, Xiangnan He

To deal with these problems, we propose an efficient and effective collaborative sampling method CoSam, which consists of: (1) a collaborative sampler model that explicitly leverages user-item interaction information in sampling probability and exhibits good properties of normalization, adaption, interaction information awareness, and sampling efficiency; and (2) an integrated sampler-recommender framework, leveraging the sampler model in prediction to offset the bias caused by uneven sampling.

Recommendation Systems

Combining Domain-Specific Meta-Learners in the Parameter Space for Cross-Domain Few-Shot Classification

no code implementations31 Oct 2020 Shuman Peng, Weilian Song, Martin Ester

The goal of few-shot classification is to learn a model that can classify novel classes using only a few training examples.

Classification Cross-Domain Few-Shot +3

Domain Generalization via Semi-supervised Meta Learning

1 code implementation26 Sep 2020 Hossein Sharifi-Noghabi, Hossein Asghari, Nazanin Mehrasa, Martin Ester

To learn a domain-invariant representation, it also utilizes a novel alignment loss to ensure that the distance between pairs of class centroids, computed after adding the unlabeled samples, is preserved across different domains.

Domain Generalization Meta-Learning

CAST: A Correlation-based Adaptive Spectral Clustering Algorithm on Multi-scale Data

1 code implementation8 Jun 2020 Xiang Li, Ben Kao, Caihua Shan, Dawei Yin, Martin Ester

We study the problem of applying spectral clustering to cluster multi-scale data, which is data whose clusters are of various sizes and densities.

Clustering

ParKCa: Causal Inference with Partially Known Causes

1 code implementation17 Mar 2020 Raquel Aoki, Martin Ester

Methods for causal inference from observational data are an alternative for scenarios where collecting counterfactual data or realizing a randomized experiment is not possible.

Causal Inference counterfactual

Hierarchical Graph Pooling with Structure Learning

3 code implementations14 Nov 2019 Zhen Zhang, Jiajun Bu, Martin Ester, Jianfeng Zhang, Chengwei Yao, Zhi Yu, Can Wang

HGP-SL incorporates graph pooling and structure learning into a unified module to generate hierarchical representations of graphs.

Graph Classification Representation Learning

An Active Approach for Model Interpretation

1 code implementation27 Oct 2019 Jialin Lu, Martin Ester

However, we argue that this paradigm is suboptimal for it does not utilize the unique property of the model interpretation problem, that is, the ability to generate synthetic instances and query the target classifier for their labels.

Active Learning

Adversarial Inductive Transfer Learning with input and output space adaptation

no code implementations25 Sep 2019 Hossein Sharifi-Noghabi, Shuman Peng, Olga Zolotareva, Colin C. Collins, Martin Ester

To the best of our knowledge, AITL is the first adversarial inductive transfer learning method to address both input and output discrepancies.

Domain Adaptation Multi-Task Learning

Checking Functional Modularity in DNN By Biclustering Task-specific Hidden Neurons

no code implementations NeurIPS Workshop Neuro_AI 2019 Jialin Lu, Martin Ester

While real brain networks exhibit functional modularity, we investigate whether functional mod- ularity also exists in Deep Neural Networks (DNN) trained through back-propagation.

PADME: A Deep Learning-based Framework for Drug-Target Interaction Prediction

2 code implementations25 Jul 2018 Qingyuan Feng, Evgenia Dueva, Artem Cherkasov, Martin Ester

In silico drug-target interaction (DTI) prediction is an important and challenging problem in biomedical research with a huge potential benefit to the pharmaceutical industry and patients.

Feature Engineering

Detecting Singleton Review Spammers Using Semantic Similarity

no code implementations9 Sep 2016 Vlad Sandulescu, Martin Ester

The second method is based on topic modeling and exploits the similarity of the reviews topic distributions using two models: bag-of-words and bag-of-opinion-phrases.

Semantic Similarity Semantic Textual Similarity

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