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Subject selection plays a critical role in experimental studies, especially ones with human subjects. Anecdotal evidence suggests that many such studies, done at or near university campus settings suffer from selection bias, i.e., the…

机器学习 · 计算机科学 2020-12-21 Tahereh Arabghalizi , Alexandros Labrinidis

While previous distribution shift detection approaches can identify if a shift has occurred, these approaches cannot localize which specific features have caused a distribution shift -- a critical step in diagnosing or fixing any underlying…

机器学习 · 计算机科学 2021-07-16 Sean Kulinski , Saurabh Bagchi , David I. Inouye

AI-generated text detection has attracted increasing attention as powerful language models approach human-level generation. Limited work is devoted to detecting (partially) AI-paraphrased texts. However, AI paraphrasing is commonly employed…

计算与语言 · 计算机科学 2024-05-30 Yafu Li , Zhilin Wang , Leyang Cui , Wei Bi , Shuming Shi , Yue Zhang

An active area of research interest is the inference of ecological models of complex microbial communities. Inferring such ecological models entails understanding the interactions between microbes and how they affect each other's growth.…

应用统计 · 统计学 2022-10-19 William Krinsman

Recommender systems attempts to identify and recommend the most preferable item (product-service) to an individual user. These systems predict user interest in items based on related items, users, and the interactions between items and…

机器学习 · 计算机科学 2021-04-07 Atousa Zarindast , Jonathan Wood , Anuj Sharma

This paper demonstrates how simulated images can be useful for object detection tasks in the agricultural sector, where labeled data can be scarce and costly to collect. We consider training on mixed datasets with real and simulated data…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Sunny Goondram , Akansel Cosgun , Dana Kulic

We aim at solving the problem of predicting people's ideology, or political tendency. We estimate it by using Twitter data, and formalize it as a classification problem. Ideology-detection has long been a challenging yet important problem.…

机器学习 · 计算机科学 2020-06-19 Zhiping Xiao , Weiping Song , Haoyan Xu , Zhicheng Ren , Yizhou Sun

It is quite common that the structure of a time series changes abruptly. Identifying these change points and describing the model structure in the segments between these change points is of interest. In this paper, time series data is…

统计计算 · 统计学 2019-12-18 Lijing Ma , Andrew Grant , Georgy Sofronov

Recommendation systems are important intelligent systems that play a vital role in providing selective information to users. Traditional approaches in recommendation systems include collaborative filtering and content-based filtering.…

信息检索 · 计算机科学 2018-11-28 Sudhanshu Kumar , Shirsendu Sukanta Halder , Kanjar De , Partha Pratim Roy

While many real-world data streams imply that they change frequently in a nonstationary way, most of deep learning methods optimize neural networks on training data, and this leads to severe performance degradation when dataset shift…

机器学习 · 计算机科学 2021-07-02 Wonju Lee , Seok-Yong Byun , Jooeun Kim , Minje Park , Kirill Chechil

Decision making or scientific discovery pipelines such as job hiring and drug discovery often involve multiple stages: before any resource-intensive step, there is often an initial screening that uses predictions from a machine learning…

统计方法学 · 统计学 2023-05-30 Ying Jin , Emmanuel J. Candès

We propose a new framework for the detection of change-points in online, sequential data analysis. The approach utilizes nearest neighbor information and can be applied to sequences of multivariate observations or non-Euclidean data…

统计方法学 · 统计学 2018-05-01 Hao Chen

When there are models with clear-cut judgment results for several data points, it is possible that most models exhibit a relationship where if they correctly judge one target, they also correctly judge another target. Conversely, if most…

机器学习 · 计算机科学 2024-02-16 Han Yegang , Park Minjun , Byun Duwon , Park Inkyu

Statistical significance of network clustering has been an unresolved problem since it was observed that community detection algorithms produce false positives even in random graphs. After a phase transition between undetectable and…

社会与信息网络 · 计算机科学 2016-05-03 Jeremi K. Ochab

Open-domain targeted sentiment analysis aims to detect opinion targets along with their sentiment polarities from a sentence. Prior work typically formulates this task as a sequence tagging problem. However, such formulation suffers from…

计算与语言 · 计算机科学 2019-06-11 Minghao Hu , Yuxing Peng , Zhen Huang , Dongsheng Li , Yiwei Lv

In this paper, we seek to improve the faithfulness of TempRel extraction models from two perspectives. The first perspective is to extract genuinely based on contextual description. To achieve this, we propose to conduct counterfactual…

计算与语言 · 计算机科学 2022-10-13 Haoyu Wang , Hongming Zhang , Yuqian Deng , Jacob R. Gardner , Dan Roth , Muhao Chen

Recommender systems have become increasingly important with the rise of the web as a medium for electronic and business transactions. One of the key drivers of this technology is the ease with which users can provide feedback about their…

信息检索 · 计算机科学 2024-11-05 Dong Li

In recent days, streaming technology has greatly promoted the development in the field of livestream. Due to the excessive length of livestream records, it's quite essential to extract highlight segments with the aim of effective…

多媒体 · 计算机科学 2022-06-13 Yang Zhao , Xuan Lin , Wenqiang Xu , Maozong Zheng , Zhengyong Liu , Zhou Zhao

We introduce a cluster evaluation technique called Tree Index. Our Tree Index algorithm aims at describing the structural information of the clustering rather than the quantitative format of cluster-quality indexes (where the representation…

机器学习 · 计算机科学 2020-03-25 A. H. Beg , Md Zahidul Islam , Vladimir Estivill-Castro

Detecting and tracking emerging trends and weak signals in large, evolving text corpora is vital for applications such as monitoring scientific literature, managing brand reputation, surveilling critical infrastructure and more generally to…

计算与语言 · 计算机科学 2024-11-22 Allaa Boutaleb , Jerome Picault , Guillaume Grosjean