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Inferential decision-making algorithms typically assume that an underlying probabilistic model of decision alternatives and outcomes may be learned a priori or online. Furthermore, when applied to robots in real-world settings they often…

Robotics · Computer Science 2023-09-15 Yucheng Chen , Pingping Zhu , Anthony Alers , Tobias Egner , Marc A. Sommer , Silvia Ferrari

A contextual bandit problem is studied in a highly non-stationary environment, which is ubiquitous in various recommender systems due to the time-varying interests of users. Two models with disjoint and hybrid payoffs are considered to…

Machine Learning · Computer Science 2020-03-03 Xiao Xu , Fang Dong , Yanghua Li , Shaojian He , Xin Li

Classroom activity detection (CAD) focuses on accurately classifying whether the teacher or student is speaking and recording both the length of individual utterances during a class. A CAD solution helps teachers get instant feedback on…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-12 Hang Li , Yu Kang , Wenbiao Ding , Song Yang , Songfan Yang , Gale Yan Huang , Zitao Liu

Recent advancements in \textit{Learning from Human Feedback} present an effective way to train robot agents via inputs from non-expert humans, without a need for a specially designed reward function. However, this approach needs a human to…

Robotics · Computer Science 2020-08-12 Zizhao Wang , Junyao Shi , Iretiayo Akinola , Peter Allen

Machine Teaching (MT) is an interactive process where humans train a machine learning model by playing the role of a teacher. The process of designing an MT system involves decisions that can impact both efficiency of human teachers and…

Artificial Intelligence · Computer Science 2022-04-25 Karan Taneja , Harshvardhan Sikka , Ashok Goel

Training automated agents to complete complex tasks in interactive environments is challenging: reinforcement learning requires careful hand-engineering of reward functions, imitation learning requires specialized infrastructure and access…

Machine Learning · Computer Science 2023-02-21 Olivia Watkins , Trevor Darrell , Pieter Abbeel , Jacob Andreas , Abhishek Gupta

Active learning (AL) is a human-and-model-in-the-loop paradigm that iteratively selects informative unlabeled data for human annotation, aiming to improve over random sampling. However, performing AL experiments with human annotations…

Machine Learning · Computer Science 2023-05-24 Katerina Margatina , Nikolaos Aletras

Efficient data annotation remains a critical challenge in machine learning, particularly for object detection tasks requiring extensive labeled data. Active learning (AL) has emerged as a promising solution to minimize annotation costs by…

Computer Vision and Pattern Recognition · Computer Science 2025-09-25 Somraj Gautam , Nachiketa Purohit , Gaurav Harit

Classical learning assumes the learner is given a labeled data sample, from which it learns a model. The field of Active Learning deals with the situation where the learner begins not with a training sample, but instead with resources that…

Machine Learning · Computer Science 2012-07-19 Omid Madani , Daniel J. Lizotte , Russell Greiner

To solve complex real-world problems with reinforcement learning, we cannot rely on manually specified reward functions. Instead, we can have humans communicate an objective to the agent directly. In this work, we combine two approaches to…

Machine Learning · Computer Science 2018-11-16 Borja Ibarz , Jan Leike , Tobias Pohlen , Geoffrey Irving , Shane Legg , Dario Amodei

Active Learning (AL) is a powerful tool to address modern machine learning problems with significantly fewer labeled training instances. However, implementation of traditional AL methodologies in practical scenarios is accompanied by…

Transfer of recent advances in deep reinforcement learning to real-world applications is hindered by high data demands and thus low efficiency and scalability. Through independent improvements of components such as replay buffers or more…

Machine Learning · Computer Science 2022-11-28 André Eberhard , Houssam Metni , Georg Fahland , Alexander Stroh , Pascal Friederich

Machine learning has emerged as a promising paradigm for enabling connected, automated vehicles to autonomously cruise the streets and react to unexpected situations. A key challenge, however, is to collect and select real-time and reliable…

Networking and Internet Architecture · Computer Science 2020-02-19 Alaa Awad Abdellatif , Carla Fabiana Chiasserini , Francesco Malandrino

With the increasing popularity of online learning, intelligent tutoring systems are regaining increased attention. In this paper, we introduce adaptive algorithms for personalized assignment of learning tasks to student so that to improve…

Artificial Intelligence · Computer Science 2016-06-24 Per-Arne Andersen , Christian Kråkevik , Morten Goodwin , Anis Yazidi

Retrieval Augmented Generation (RAG) has proven to be highly effective in boosting the generative performance of language model in knowledge-intensive tasks. However, existing RAG framework either indiscriminately perform retrieval or rely…

Artificial Intelligence · Computer Science 2025-01-03 Xiaqiang Tang , Qiang Gao , Jian Li , Nan Du , Qi Li , Sihong Xie

Machine teaching addresses the problem of finding the best training data that can guide a learning algorithm to a target model with minimal effort. In conventional settings, a teacher provides data that are consistent with the true data…

Machine Learning · Computer Science 2019-11-04 Tomi Peltola , Mustafa Mert Çelikok , Pedram Daee , Samuel Kaski

In this paper, we investigate a new multi-armed bandit (MAB) online learning model that considers real-world phenomena in many recommender systems: (i) the learning agent cannot pull the arms by itself and thus has to offer rewards to users…

Machine Learning · Computer Science 2021-06-01 Tianchen Zhou , Jia Liu , Chaosheng Dong , Jingyuan Deng

Active learning aims to select a small subset of data for annotation such that a classifier learned on the data is highly accurate. This is usually done using heuristic selection methods, however the effectiveness of such methods is limited…

Computation and Language · Computer Science 2017-08-09 Meng Fang , Yuan Li , Trevor Cohn

Next-generation networks are expected to be ultra-dense with a very high peak rate but relatively lower expected traffic per user. For such scenario, existing central controller based resource allocation may incur substantial signaling…

Networking and Internet Architecture · Computer Science 2020-04-02 Sumit J. Darak , Manjesh K. Hanawal

Multi-task learning (MTL) aims to enhance the performance and efficiency of machine learning models by simultaneously training them on multiple tasks. However, MTL research faces two challenges: 1) effectively modeling the relationships…

Information Retrieval · Computer Science 2023-06-06 Danwei Li , Zhengyu Zhang , Siyang Yuan , Mingze Gao , Weilin Zhang , Chaofei Yang , Xi Liu , Jiyan Yang