cameraman
American tennis star Danielle Collins defends outburst toward cameraman during tournament
PongBot is an artificial intelligence-powered tennis robot. American tennis star Danielle Collins on Tuesday defended her outburst toward a cameraman during a tournament last week. Collins' incident occurred at the Internationaux de Strasbourg against Emma Raducanu. During a changeover, she told the cameraman to keep their distance as she refilled her water bottle. She said the cameraman was acting "wildly inappropriate."
- Europe > France > Grand Est > Bas-Rhin > Strasbourg (0.27)
- Oceania > Australia (0.22)
- North America > United States (0.16)
American tennis star Danielle Collins accuses cameraman of 'wildly inappropriate' behavior
PongBot is an artificial intelligence-powered tennis robot. American tennis player Danielle Collins had some choice words for the cameraman during her Internationaux de Strasbourg match against Emma Raducanu on Wednesday afternoon. Collins was in the middle of a changeover when she felt the cameraman's hovering was a bit too close for comfort in the middle of the third and defining set. She got off the bench and made the point clear. Danielle Collins celebrates during her match against Madison Keys in the third round of the women's singles at the 2025 Australian Open at Melbourne Park in Melbourne, Australia, on Jan. 18, 2025.
The split Gibbs sampler revisited: improvements to its algorithmic structure and augmented target distribution
Pereyra, Marcelo, Vargas-Mieles, Luis A., Zygalakis, Konstantinos C.
Developing efficient Bayesian computation algorithms for imaging inverse problems is challenging due to the dimensionality involved and because Bayesian imaging models are often not smooth. Current state-of-the-art methods often address these difficulties by replacing the posterior density with a smooth approximation that is amenable to efficient exploration by using Langevin Markov chain Monte Carlo (MCMC) methods. An alternative approach is based on data augmentation and relaxation, where auxiliary variables are introduced in order to construct an approximate augmented posterior distribution that is amenable to efficient exploration by Gibbs sampling. This paper proposes a new accelerated proximal MCMC method called latent space SK-ROCK (ls SK-ROCK), which tightly combines the benefits of the two aforementioned strategies. Additionally, instead of viewing the augmented posterior distribution as an approximation of the original model, we propose to consider it as a generalisation of this model. Following on from this, we empirically show that there is a range of values for the relaxation parameter for which the accuracy of the model improves, and propose a stochastic optimisation algorithm to automatically identify the optimal amount of relaxation for a given problem. In this regime, ls SK-ROCK converges faster than competing approaches from the state of the art, and also achieves better accuracy since the underlying augmented Bayesian model has a higher Bayesian evidence. The proposed methodology is demonstrated with a range of numerical experiments related to image deblurring and inpainting, as well as with comparisons with alternative approaches from the state of the art. An open-source implementation of the proposed MCMC methods is available from https://github.com/luisvargasmieles/ls-MCMC.
- North America > United States > New York > New York County > New York City (0.04)
- North America > United States > Washington > King County > Seattle (0.04)
- North America > United States > Florida > Palm Beach County > Boca Raton (0.04)
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- Information Technology > Artificial Intelligence > Representation & Reasoning > Uncertainty > Bayesian Inference (1.00)
- Information Technology > Artificial Intelligence > Machine Learning > Statistical Learning (1.00)
- Information Technology > Artificial Intelligence > Machine Learning > Learning Graphical Models > Directed Networks > Bayesian Learning (1.00)