Search Results for author: Carlotta Domeniconi

Found 27 papers, 2 papers with code

Federated Causality Learning with Explainable Adaptive Optimization

no code implementations9 Dec 2023 Dezhi Yang, Xintong He, Jun Wang, Guoxian Yu, Carlotta Domeniconi, Jinglin Zhang

We design a global optimization formula to naturally aggregate the causal graphs from client data and constrain the acyclicity of the global graph without exposing local data.

Causal Discovery

Long-tail Cross Modal Hashing

no code implementations28 Nov 2022 Zijun Gao, Jun Wang, Guoxian Yu, Zhongmin Yan, Carlotta Domeniconi, Jinglin Zhang

LtCMH firstly adopts auto-encoders to mine the individuality and commonality of different modalities by minimizing the dependency between the individuality of respective modalities and by enhancing the commonality of these modalities.

Hub-VAE: Unsupervised Hub-based Regularization of Variational Autoencoders

no code implementations18 Nov 2022 Priya Mani, Carlotta Domeniconi

Exemplar-based methods rely on informative data points or prototypes to guide the optimization of learning algorithms.

Crowdsourcing with Meta-Workers: A New Way to Save the Budget

no code implementations7 Nov 2021 Guangyang Han, Guoxian Yu, Lizhen Cui, Carlotta Domeniconi, Xiangliang Zhang

Due to the unreliability of Internet workers, it's difficult to complete a crowdsourcing project satisfactorily, especially when the tasks are multiple and the budget is limited.

Few-Shot Learning Image Classification

Cross-modal Zero-shot Hashing by Label Attributes Embedding

no code implementations7 Nov 2021 Runmin Wang, Guoxian Yu, Lei Liu, Lizhen Cui, Carlotta Domeniconi, Xiangliang Zhang

Cross-modal hashing (CMH) is one of the most promising methods in cross-modal approximate nearest neighbor search.

Attribute

Meta Cross-Modal Hashing on Long-Tailed Data

no code implementations7 Nov 2021 Runmin Wang, Guoxian Yu, Carlotta Domeniconi, Xiangliang Zhang

Due to the lack of training samples in the tail classes, MetaCMH first learns direct features from data in different modalities, and then introduces an associative memory module to learn the memory features of samples of the tail classes.

Meta-Learning

MetaMIML: Meta Multi-Instance Multi-Label Learning

no code implementations7 Nov 2021 Yuanlin Yang, Guoxian Yu, Jun Wang, Lei Liu, Carlotta Domeniconi, Maozu Guo

Multi-Instance Multi-Label learning (MIML) models complex objects (bags), each of which is associated with a set of interrelated labels and composed with a set of instances.

Meta-Learning Multi-Label Learning +1

Open-Set Crowdsourcing using Multiple-Source Transfer Learning

no code implementations7 Nov 2021 Guangyang Han, Guoxian Yu, Lei Liu, Lizhen Cui, Carlotta Domeniconi, Xiangliang Zhang

First, OSCrowd integrates crowd theme related datasets into a large source domain to facilitate partial transfer learning to approximate the label space inference of these tasks.

Transfer Learning

Group-Node Attention for Community Evolution Prediction

no code implementations9 Jul 2021 Matt Revelle, Carlotta Domeniconi, Ben Gelman

The task of predicting structural changes in communities over time is known as community evolution prediction.

Few-Shot Partial-Label Learning

no code implementations2 Jun 2021 Yunfeng Zhao, Guoxian Yu, Lei Liu, Zhongmin Yan, Lizhen Cui, Carlotta Domeniconi

Partial-label learning (PLL) generally focuses on inducing a noise-tolerant multi-class classifier by training on overly-annotated samples, each of which is annotated with a set of labels, but only one is the valid label.

Few-Shot Learning Metric Learning +2

Unsupervised Selective Manifold Regularized Matrix Factorization

no code implementations20 Oct 2020 Priya Mani, Carlotta Domeniconi, Igor Griva

Manifold regularization methods for matrix factorization rely on the cluster assumption, whereby the neighborhood structure of data in the input space is preserved in the factorization space.

Clustering

Multi-typed Objects Multi-view Multi-instance Multi-label Learning

no code implementations6 Oct 2020 Yuanlin Yang, Guoxian Yu, Jun Wang, Carlotta Domeniconi, Xiangliang Zhang

Multi-typed objects Multi-view Multi-instance Multi-label Learning (M4L) deals with interconnected multi-typed objects (or bags) that are made of diverse instances, represented with heterogeneous feature views and annotated with a set of non-exclusive but semantically related labels.

Multi-Label Learning

Deep Incomplete Multi-View Multiple Clusterings

no code implementations2 Oct 2020 Shaowei Wei, Jun Wang, Guoxian Yu, Carlotta Domeniconi, Xiangliang Zhang

Multi-view clustering aims at exploiting information from multiple heterogeneous views to promote clustering.

Clustering

Attention-Aware Answers of the Crowd

no code implementations24 Dec 2019 Jingzheng Tu, Guoxian Yu, Jun Wang, Carlotta Domeniconi, Xiangliang Zhang

However, they all assume that workers' label quality is stable over time (always at the same level whenever they conduct the tasks).

Bayesian Inference

Active Multi-Label Crowd Consensus

no code implementations7 Nov 2019 Jinzheng Tu, Guoxian Yu, Carlotta Domeniconi, Jun Wang, Xiangliang Zhang

AMCC accounts for the commonality and individuality of workers, and assumes that workers can be organized into different groups.

Estimator Vectors: OOV Word Embeddings based on Subword and Context Clue Estimates

no code implementations18 Oct 2019 Raj Patel, Carlotta Domeniconi

Semantic representations of words have been successfully extracted from unlabeled corpuses using neural network models like word2vec.

Word Embeddings

Cross-modal Zero-shot Hashing

no code implementations19 Aug 2019 Xuanwu Liu, Zhao Li, Jun Wang, Guoxian Yu, Carlotta Domeniconi, Xiangliang Zhang

It then defines an objective function to achieve deep feature learning compatible with the composite similarity preserving, category attribute space learning, and hashing coding function learning.

Attribute Retrieval

Weakly-paired Cross-Modal Hashing

no code implementations29 May 2019 Xuanwu Liu, Jun Wang, Guoxian Yu, Carlotta Domeniconi, Xiangliang Zhang

FlexCMH first introduces a clustering-based matching strategy to explore the local structure of each cluster, and thus to find the potential correspondence between clusters (and samples therein) across modalities.

Clustering Retrieval

ActiveHNE: Active Heterogeneous Network Embedding

no code implementations14 May 2019 Xia Chen, Guoxian Yu, Jun Wang, Carlotta Domeniconi, Zhao Li, Xiangliang Zhang

To maximize the profit of utilizing the rare and valuable supervised information in HNEs, we develop a novel Active Heterogeneous Network Embedding (ActiveHNE) framework, which includes two components: Discriminative Heterogeneous Network Embedding (DHNE) and Active Query in Heterogeneous Networks (AQHN).

Network Embedding

Multi-View Multiple Clustering

no code implementations13 May 2019 Shixing Yao, Guoxian Yu, Jun Wang, Carlotta Domeniconi, Xiangliang Zhang

It then uses matrix factorization on the individual matrices, along with the shared matrix, to generate diverse clusterings of high-quality.

Clustering Representation Learning

Multi-View Multi-Instance Multi-Label Learning based on Collaborative Matrix Factorization

no code implementations13 May 2019 Yuying Xing, Guoxian Yu, Carlotta Domeniconi, Jun Wang, Zili Zhang, Maozu Guo

To preserve the intrinsic structure of the data matrices, M3Lcmf collaboratively factorizes them into low-rank matrices, explores the latent relationships between bags, instances, and labels, and selectively merges the data matrices.

Multi-Label Learning

Ranking-based Deep Cross-modal Hashing

no code implementations11 May 2019 Xuanwu Liu, Guoxian Yu, Carlotta Domeniconi, Jun Wang, Yazhou Ren, Maozu Guo

Next, to expand the semantic representation power of hand-crafted features, RDCMH integrates the semantic ranking information into deep cross-modal hashing and jointly optimizes the compatible parameters of deep feature representations and of hashing functions.

Cross-Modal Retrieval Retrieval

Multiple Independent Subspace Clusterings

no code implementations10 May 2019 Xing Wang, Jun Wang, Carlotta Domeniconi, Guoxian Yu, Guo-Qiang Xiao, Maozu Guo

To ease this process, we consider diverse clusterings embedded in different subspaces, and analyze the embedding subspaces to shed light into the structure of each clustering.

Clustering

Graph-based Selective Outlier Ensembles

1 code implementation17 Apr 2018 Hamed Sarvari, Carlotta Domeniconi, Giovanni Stilo

A problem with this approach is that poor components are likely to negatively affect the quality of the consensus result.

outlier ensembles

Theoretical and Empirical Analysis of a Parallel Boosting Algorithm

no code implementations6 Aug 2015 Uday Kamath, Carlotta Domeniconi, Kenneth De Jong

In this paper we discuss a meta-learning algorithm (PSBML) which combines features of parallel algorithms with concepts from ensemble and boosting methodologies to achieve the desired scalability property.

Meta-Learning

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