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Machine learning techniques applied to the Natural Language Processing (NLP) component of conversational agent development show promising results for improved accuracy and quality of feedback that a conversational agent can provide. The…

计算与语言 · 计算机科学 2020-10-27 Debajyoti Datta , Maria Phillips , Jennifer Chiu , Ginger S. Watson , James P. Bywater , Laura Barnes , Donald Brown

Fine-tuning is a common practice in deep learning, achieving excellent generalization results on downstream tasks using relatively little training data. Although widely used in practice, it is lacking strong theoretical understanding. We…

机器学习 · 计算机科学 2021-11-09 Gal Shachaf , Alon Brutzkus , Amir Globerson

Fluorescence Microcopy Calcium Imaging is a fundamental tool to in-vivo record and analyze large scale neuronal activities simultaneously at a single cell resolution. Automatic and precise detection of behaviorally relevant neuron activity…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Ran Li , Pan Xiao , Kaushik Dutta , Youdong Guo

Sensor-based activity recognition seeks the profound high-level knowledge about human activities from multitudes of low-level sensor readings. Conventional pattern recognition approaches have made tremendous progress in the past years.…

计算机视觉与模式识别 · 计算机科学 2018-03-02 Jindong Wang , Yiqiang Chen , Shuji Hao , Xiaohui Peng , Lisha Hu

Active learning shows promise to decrease test bench time for model-based drivability calibration. This paper presents a new strategy for active output selection, which suits the needs of calibration tasks. The strategy is actively learning…

机器学习 · 计算机科学 2021-02-24 Adrian Prochaska , Julien Pillas , Bernard Bäker

For real-world speech recognition applications, noise robustness is still a challenge. In this work, we adopt the teacher-student (T/S) learning technique using a parallel clean and noisy corpus for improving automatic speech recognition…

音频与语音处理 · 电气工程与系统科学 2019-03-19 Ladislav Mošner , Minhua Wu , Anirudh Raju , Sree Hari Krishnan Parthasarathi , Kenichi Kumatani , Shiva Sundaram , Roland Maas , Björn Hoffmeister

In this work we present a multi-modal machine learning-based system, which we call ACORN, to analyze videos of school classrooms for the Positive Climate (PC) and Negative Climate (NC) dimensions of the CLASS observation protocol that is…

计算机视觉与模式识别 · 计算机科学 2021-07-26 Anand Ramakrishnan , Brian Zylich , Erin Ottmar , Jennifer LoCasale-Crouch , Jacob Whitehill

Training Deep Convolutional Neural Networks (CNNs) is based on the notion of using multiple kernels and non-linearities in their subsequent activations to extract useful features. The kernels are used as general feature extractors without…

计算机视觉与模式识别 · 计算机科学 2020-11-13 Alexandros Stergiou , Ronald Poppe , Remco C. Veltkamp

Modern end-to-end speech recognition models show astonishing results in transcribing audio signals into written text. However, conventional data feeding pipelines may be sub-optimal for low-resource speech recognition, which still remains a…

音频与语音处理 · 电气工程与系统科学 2022-02-21 Anastasia Kuznetsova , Anurag Kumar , Jennifer Drexler Fox , Francis Tyers

Video anomaly detection under weak labels is formulated as a typical multiple-instance learning problem in previous works. In this paper, we provide a new perspective, i.e., a supervised learning task under noisy labels. In such a…

计算机视觉与模式识别 · 计算机科学 2019-03-19 Jia-Xing Zhong , Nannan Li , Weijie Kong , Shan Liu , Thomas H. Li , Ge Li

Active learning comprises many varied techniques that engage students actively in the construction of their understanding. Because of this variation, different active learning techniques may be best suited to achieving different learning…

综合经济学 · 经济学 2025-08-11 Sarah A. Jacobson , Luyao Zhang , Jiasheng Zhu

Languages have long been described according to their perceived rhythmic attributes. The associated typologies are of interest in psycholinguistics as they partly predict newborns' abilities to discriminate between languages and provide…

音频与语音处理 · 电气工程与系统科学 2024-01-29 François Deloche , Laurent Bonnasse-Gahot , Judit Gervain

We study the rates of convergence in generalization error achievable by active learning under various types of label noise. Additionally, we study the general problem of model selection for active learning with a nested hierarchy of…

统计理论 · 数学 2011-03-10 Steve Hanneke

Moments capture a huge part of our lives. Accurate recognition of these moments is challenging due to the diverse and complex interpretation of the moments. Action recognition refers to the act of classifying the desired action/activity…

计算机视觉与模式识别 · 计算机科学 2018-09-14 Ankit Shah , Harini Kesavamoorthy , Poorva Rane , Pramati Kalwad , Alexander Hauptmann , Florian Metze

Training deep learning models on in-home IoT sensory data is commonly used to recognise human activities. Recently, federated learning systems that use edge devices as clients to support local human activity recognition have emerged as a…

机器学习 · 计算机科学 2021-04-01 Yuchen Zhao , Hanyang Liu , Honglin Li , Payam Barnaghi , Hamed Haddadi

With the recent substantial growth of media such as YouTube, a considerable number of instructional videos covering a wide variety of tasks are available online. Therefore, online instructional videos have become a rich resource for humans…

计算机视觉与模式识别 · 计算机科学 2017-06-01 Seong Tae Kim , Yong Man Ro

Student extracurricular activities play an important role in enriching the students' educational experiences. With the increasing popularity of Machine Learning and Natural Language Processing, it becomes a logical step that incorporating…

计算与语言 · 计算机科学 2025-03-11 Lyberius Ennio F. Taruc , Arvin R. De La Cruz

Acoustic event detection and scene classification are major research tasks in environmental sound analysis, and many methods based on neural networks have been proposed. Conventional methods have addressed these tasks separately; however,…

We describe a framework for designing efficient active learning algorithms that are tolerant to random classification noise and are differentially-private. The framework is based on active learning algorithms that are statistical in the…

机器学习 · 计算机科学 2014-11-06 Maria Florina Balcan , Vitaly Feldman

Speech recognition is very challenging in student learning environments that are characterized by significant cross-talk and background noise. To address this problem, we present a bilingual speech recognition system that uses an…