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- research-articleNovember 2022
Heterogeneous clustering via adversarial deep Bayesian generative model
Frontiers of Computer Science: Selected Publications from Chinese Universities (FCS), Volume 17, Issue 3https://doi.org/10.1007/s11704-022-1376-2AbstractThis paper aims to study the deep clustering problem with heterogeneous features and unknown cluster number. To address this issue, a novel deep Bayesian clustering framework is proposed. In particular, a heterogeneous feature metric is first ...
- research-articleMay 2022
Extended variational inference for Dirichlet process mixture of Beta‐Liouville distributions for proportional data modeling
International Journal of Intelligent Systems (IJIS), Volume 37, Issue 7Pages 4277–4306https://doi.org/10.1002/int.22721AbstractBayesian estimation of parameters in the Dirichlet mixture process of the Beta‐Liouville distribution (i.e., the infinite Beta‐Liouville mixture model) has recently gained considerable attention due to its modeling capability for proportional ...
- research-articleJanuary 2022
Posterior asymptotics for boosted hierarchical dirichlet process mixtures
The Journal of Machine Learning Research (JMLR), Volume 23, Issue 1Article No.: 80, Pages 3471–3493Bayesian hierarchical models are powerful tools for learning common latent features across multiple data sources. The Hierarchical Dirichlet Process (HDP) is invoked when the number of latent components is a priori unknown. While there is a rich ...
- research-articleJanuary 2020
Nonparametric graphical model for counts
The Journal of Machine Learning Research (JMLR), Volume 21, Issue 1Article No.: 229, Pages 9353–9373Although multivariate count data are routinely collected in many application areas, there is surprisingly little work developing flexible models for characterizing their dependence structure. This is particularly true when interest focuses on inferring ...
- research-articleOctober 2019
Open Set Deep Learning with A Bayesian Nonparametric Generative Model
MM '19: Proceedings of the 27th ACM International Conference on MultimediaPages 2133–2141https://doi.org/10.1145/3343031.3350979Being a widely studied model in machine learning and multimedia community, Deep Neural Network (DNN) has achieved an encouraging success in various applications. However, conventional DNN suffers the difficulty when handling the open set learning ...
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- research-articleJuly 2019
Nonparametric Mixture of Sparse Regressions on Spatio-Temporal Data -- An Application to Climate Prediction
KDD '19: Proceedings of the 25th ACM SIGKDD International Conference on Knowledge Discovery & Data MiningPages 2556–2564https://doi.org/10.1145/3292500.3330692Climate prediction is a very challenging problem. Many institutes around the world try to predict climate variables by building climate models called General Circulation Models (GCMs), which are based on mathematical equations that describe the physical ...
- research-articleJuly 2018
Model-based Clustering of Short Text Streams
KDD '18: Proceedings of the 24th ACM SIGKDD International Conference on Knowledge Discovery & Data MiningPages 2634–2642https://doi.org/10.1145/3219819.3220094Short text stream clustering has become an increasingly important problem due to the explosive growth of short text in diverse social medias. In this paper, we propose a model-based short text stream clustering algorithm (MStream) which can deal with ...
- research-articleOctober 2016
A Nonparametric Model for Event Discovery in the Geospatial-Temporal Space
CIKM '16: Proceedings of the 25th ACM International on Conference on Information and Knowledge ManagementPages 499–508https://doi.org/10.1145/2983323.2983790The availability of geographical and temporal tagged documents enables many location and time based mining tasks. Event discovery is one of such tasks, which is to identify interesting happenings in the geographical and temporal space. In recent years, ...
- research-articleOctober 2015
Data Driven Water Pipe Failure Prediction: A Bayesian Nonparametric Approach
CIKM '15: Proceedings of the 24th ACM International on Conference on Information and Knowledge ManagementPages 193–202https://doi.org/10.1145/2806416.2806509Water pipe failures can cause significant economic and social costs, hence have become the primary challenge to water utilities. In this paper, we propose a Bayesian nonparametric approach, namely the Dirichlet process mixture of hierarchical beta ...
- research-articleAugust 2015
Dirichlet-Hawkes Processes with Applications to Clustering Continuous-Time Document Streams
KDD '15: Proceedings of the 21th ACM SIGKDD International Conference on Knowledge Discovery and Data MiningPages 219–228https://doi.org/10.1145/2783258.2783411Clusters in document streams, such as online news articles, can be induced by their textual contents, as well as by the temporal dynamics of their arriving patterns. Can we leverage both sources of information to obtain a better clustering of the ...
- ArticleMay 2015
Unsupervised Software Categorization Using Bytecode
ICPC '15: Proceedings of the 2015 IEEE 23rd International Conference on Program ComprehensionPages 229–239https://doi.org/10.1109/ICPC.2015.33Automatic software categorization is the task of assigning software systems or libraries to categories based on their functionality. Correctly assigning these categories is essential to ensure that relevant software can be easily retrieved by developers ...
- research-articleApril 2014
Timeline generation: tracking individuals on twitter
WWW '14: Proceedings of the 23rd international conference on World wide webPages 643–652https://doi.org/10.1145/2566486.2567969In this paper, we preliminarily learn the problem of reconstructing users' life history based on the their Twitter stream and proposed an unsupervised framework that create a chronological list for personal important events (PIE) of individuals. By ...
- research-articleFebruary 2014
Detecting non-gaussian geographical topics in tagged photo collections
WSDM '14: Proceedings of the 7th ACM international conference on Web search and data miningPages 603–612https://doi.org/10.1145/2556195.2556218Nowadays, large collections of photos are tagged with GPS coordinates. The modelling of such large geo-tagged corpora is an important problem in data mining and information retrieval, and involves the use of geographical information to detect topics with ...
- ArticleDecember 2012
Repulsive mixtures
NIPS'12: Proceedings of the 25th International Conference on Neural Information Processing Systems - Volume 2Pages 1889–1897Discrete mixtures are used routinely in broad sweeping applications ranging from unsupervised settings to fully supervised multi-task learning. Indeed, finite mixtures and infinite mixtures, relying on Dirichlet processes and modifications, have become ...
- ArticleNovember 2012
Nonparametric localized feature selection via a dirichlet process mixture of generalized dirichlet distributions
ICONIP'12: Proceedings of the 19th international conference on Neural Information Processing - Volume Part IIIPages 25–33https://doi.org/10.1007/978-3-642-34487-9_4In this paper, we propose a novel Bayesian nonparametric statistical approach of simultaneous clustering and localized feature selection for unsupervised learning. The proposed model is based on a mixture of Dirichlet processes with generalized ...
- ArticleNovember 2012
Subjective logic extensions for the semantic web
Subjective logic is a powerful probabilistic logic which is useful to handle data in case of uncertainty. Subjective logic and the Semantic Web can mutually benefit from each other, since subjective logic is useful to handle the inner noisiness of the ...
- ArticleOctober 2011
MEI: mutual enhanced infinite generative model for simultaneous community and topic detection
Community and topic are two widely studied patterns in social network analysis. However, most existing studies either utilize textual content to improve the community detection or use link structure to guide topic modeling. Recently, some studies take ...
- ArticleJanuary 2011
Generating representative views of landmarks via scenic theme detection
MMM'11: Proceedings of the 17th international conference on Advances in multimedia modeling - Volume Part IPages 392–402Visual summarization of landmarks is an interesting and non-trivial task with the availability of gigantic community-contributed resources. In this work, we investigate ways to generate representative and distinctive views of landmarks by automatically ...
- research-articleDecember 2010
Compressive sensing on manifolds using a nonparametric mixture of factor analyzers: algorithm and performance bounds
IEEE Transactions on Signal Processing (TSP), Volume 58, Issue 12Pages 6140–6155https://doi.org/10.1109/TSP.2010.2070796Nonparametric Bayesian methods are employed to constitute a mixture of low-rank Gaussians, for data x ∈ RN that are of high dimension N but are constrained to reside in a low-dimensional subregion of RN. The number of mixture components and their rank ...
- ArticleAugust 2008
Social network mining with nonparametric relational models
Statistical relational learning (SRL) provides effective techniques to analyze social network data with rich collections of objects and complex networks. Infinite hidden relational models (IHRMs) introduce nonparametric mixture models into relational ...