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Behavior Trees are a task switching policy representation that can grant reactiveness and fault tolerance. Moreover, because of their structure and modularity, a variety of methods can be used to generate them automatically. In this short…

Robotics · Computer Science 2023-01-18 Matteo Iovino , Christian Smith

Text-to-image models are showcasing the impressive ability to create high-quality and diverse generative images. Nevertheless, the transition from freehand sketches to complex scene images remains challenging using diffusion models. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Tianyu Zhang , Xiaoxuan Xie , Xusheng Du , Haoran Xie

In spite of recent advancements in text-to-image generation, limitations persist in handling complex and imaginative prompts due to the restricted diversity and complexity of training data. This work explores how diffusion models can…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Yi Yao , Chan-Feng Hsu , Jhe-Hao Lin , Hongxia Xie , Terence Lin , Yi-Ning Huang , Hong-Han Shuai , Wen-Huang Cheng

Random forests are decision tree ensembles that can be used to solve a variety of machine learning problems. However, as the number of trees and their individual size can be large, their decision making process is often incomprehensible. In…

Artificial Intelligence · Computer Science 2022-11-22 Nico Potyka , Xiang Yin , Francesca Toni

Domestic and service robots have the potential to transform industries such as health care and small-scale manufacturing, as well as the homes in which we live. However, due to the overwhelming variety of tasks these robots will be expected…

Robotics · Computer Science 2021-06-04 Gavin Suddrey , Ben Talbot , Frederic Maire

Behavior trees (BTs) are a popular method for modeling NPC and enemy AI behavior and have been widely used in commercial games. In this work, rather than use BTs to model game playing agents, we use them for modeling game design agents,…

Artificial Intelligence · Computer Science 2021-10-11 Anurag Sarkar , Seth Cooper

Robotic simulators play a crucial role in the development and testing of autonomous systems, particularly in the realm of Uncrewed Aerial Vehicles (UAV). However, existing simulators often lack high-level autonomy, hindering their immediate…

Large and small language models have been widely used for robotic task planning. At the same time, vision-language models (VLMs) have successfully tackled problems such as image captioning, scene understanding, and visual question…

Robotics · Computer Science 2026-03-09 Cristiano Battistini , Riccardo Andrea Izzo , Gianluca Bardaro , Matteo Matteucci

Phylogenetic trees are the primary framework for conveying evolutionary relationships. While many tools exist for visualizing phylogenetic trees, most are limited to static graphics, require coding expertise, or are developed for a specific…

Populations and Evolution · Quantitative Biology 2026-05-15 Zachary S. L. Foster , Jeff H. Chang , Niklaus J. Grunwald

Synthesizing realistic 3D indoor scenes is a challenging task that traditionally relies on manual arrangement and annotation by expert designers. Recent advances in autoregressive models have automated this process, but they often lack…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Qi Sun , Hang Zhou , Wengang Zhou , Li Li , Houqiang Li

A random forest is a popular tool for estimating probabilities in machine learning classification tasks. However, the means by which this is accomplished is unprincipled: one simply counts the fraction of trees in a forest that vote for a…

Machine Learning · Statistics 2018-12-17 Matthew A. Olson , Abraham J. Wyner

Three-dimensional scene generation is crucial in computer vision, with applications spanning autonomous driving, gaming and the metaverse. Current methods either lack user control or rely on imprecise, non-intuitive conditions. In this…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Yuheng Liu , Xinke Li , Yuning Zhang , Lu Qi , Xin Li , Wenping Wang , Chongshou Li , Xueting Li , Ming-Hsuan Yang

In computer games, traditional procedural terrain generation relies on a grid of vertices, with each point representing terrain elevation. For each square in the grid, two triangles are created by connecting fixed vertex indices, resulting…

Graphics · Computer Science 2025-05-15 Richard Tivolt

Autonomous robots combine a variety of skills to form increasingly complex behaviors called missions. While the skills are often programmed at a relatively low level of abstraction, their coordination is architecturally separated and often…

Robotics · Computer Science 2020-11-17 Razan Ghzouli , Thorsten Berger , Einar Broch Johnsen , Swaib Dragule , Andrzej Wąsowski

Learning from few demonstrations to develop policies robust to variations in robot initial positions and object poses is a problem of significant practical interest in robotics. Compared to imitation learning, which often struggles to…

Robotics · Computer Science 2025-04-30 Haowen Sun , Han Wang , Chengzhong Ma , Shaolong Zhang , Jiawei Ye , Xingyu Chen , Xuguang Lan

Modern industrial applications require robots to be able to operate in unpredictable environments, and programs to be created with a minimal effort, as there may be frequent changes to the task. In this paper, we show that genetic…

Robotics · Computer Science 2020-11-09 Matteo Iovino , Jonathan Styrud , Pietro Falco , Christian Smith

Self-driving software pipelines include components that are learned from a significant number of training examples, yet it remains challenging to evaluate the overall system's safety and generalization performance. Together with scaling up…

The landscape of video generation is shifting, from a focus on generating visually appealing clips to building virtual environments that support interaction and maintain physical plausibility. These developments point toward the emergence…

Artificial Intelligence · Computer Science 2026-02-09 Jingtong Yue , Ziqi Huang , Zhaoxi Chen , Xintao Wang , Pengfei Wan , Ziwei Liu

Despite deep-learning being state-of-the-art for data-driven model predictions, it has not yet found frequent application in ecology. Given the low sample size typical in many environmental research fields, the default choice for the…

Applications · Statistics 2022-09-29 Marieke Wesselkamp , Niklas Moser , Maria Kalweit , Joschka Boedecker , Carsten F. Dormann

Recently, with the rapid advancements of generative models, the field of visual text generation has witnessed significant progress. However, it is still challenging to render high-quality text images in real-world scenarios, as three…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Yuanzhi Zhu , Jiawei Liu , Feiyu Gao , Wenyu Liu , Xinggang Wang , Peng Wang , Fei Huang , Cong Yao , Zhibo Yang