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Positive-unlabeled (PU) learning trains a binary classifier using only positive and unlabeled data. A common simplifying assumption is that the positive data is representative of the target positive class. This assumption rarely holds in…

机器学习 · 计算机科学 2020-11-10 Zayd Hammoudeh , Daniel Lowd

Learning from positive and unlabeled data is known as positive-unlabeled (PU) learning in literature and has attracted much attention in recent years. One common approach in PU learning is to sample a set of pseudo-negatives from the…

机器学习 · 计算机科学 2023-08-02 Zhangchi Zhu , Lu Wang , Pu Zhao , Chao Du , Wei Zhang , Hang Dong , Bo Qiao , Qingwei Lin , Saravan Rajmohan , Dongmei Zhang

In the e-commerce space, accurate prediction of delivery dates plays a major role in customer experience as well as in optimizing the supply chain operations. Predicting a date later than the actual delivery date might sometimes result in…

机器学习 · 计算机科学 2021-05-04 Preethi V , Nachiappan Sundaram , Ravindra Babu Tallamraju

Positive-Unlabeled (PU) learning tries to learn binary classifiers from a few labeled positive examples with many unlabeled ones. Compared with ordinary semi-supervised learning, this task is much more challenging due to the absence of any…

机器学习 · 计算机科学 2022-12-07 Yunrui Zhao , Qianqian Xu , Yangbangyan Jiang , Peisong Wen , Qingming Huang

Off-the-shelf machine learning algorithms for prediction such as regularized logistic regression cannot exploit the information of time-varying features without previously using an aggregation procedure of such sequential data. However,…

应用统计 · 统计学 2019-09-26 C. Gary Mena , Arno De Caigny , Kristof Coussement , Koen W. De Bock , Stefan Lessmann

As online platforms are striving to get more users, a critical challenge is user churn, which is especially concerning for new users. In this paper, by taking the anonymous large-scale real-world data from Snapchat as an example, we develop…

社会与信息网络 · 计算机科学 2019-10-04 Carl Yang , Xiaolin Shi , Jie Luo , Jiawei Han

Malicious bots make up about a quarter of all traffic on the web, and degrade the performance of personalization and recommendation algorithms that operate on e-commerce sites. Positive-Unlabeled learning (PU learning) provides the ability…

机器学习 · 计算机科学 2021-03-03 Sunny Dhamnani , Ritwik Sinha , Vishwa Vinay , Lilly Kumari , Margarita Savova

Customer purchasing behavior analysis plays a key role in developing insightful communication strategies between online vendors and their customers. To support the recent increase in online shopping trends, in this work, we present a…

机器学习 · 计算机科学 2021-02-03 Sohini Roychowdhury , Ebrahim Alareqi , Wenxi Li

With the growing competition in banking industry, banks are required to follow customer retention strategies while they are trying to increase their market share by acquiring new customers. This study compares the performance of six…

机器学习 · 统计学 2023-01-31 Sina Esmaeilpour Charandabi

Social network analytics methods are being used in the telecommunication industry to predict customer churn with great success. In particular it has been shown that relational learners adapted to this specific problem enhance the…

社会与信息网络 · 计算机科学 2020-03-20 María Óskarsdóttir , Cristián Bravo , Wouter Verbeke , Carlos Sarraute , Bart Baesens , Jan Vanthienen

Planning for a wide range of real-world tasks necessitates to know and write all constraints. However, instances exist where these constraints are either unknown or challenging to specify accurately. A possible solution is to infer the…

机器学习 · 计算机科学 2025-01-17 Baiyu Peng , Aude Billard

This paper takes a deep learning approach to understand consumer credit risk when e-commerce platforms issue unsecured credit to finance customers' purchase. The "NeuCredit" model can capture both serial dependences in multi-dimensional…

风险管理 · 定量金融 2019-06-06 Di Wang , Qi Wu , Wen Zhang

Learning decent representations from unlabeled time-series data with temporal dynamics is a very challenging task. In this paper, we propose an unsupervised Time-Series representation learning framework via Temporal and Contextual…

机器学习 · 计算机科学 2021-06-29 Emadeldeen Eldele , Mohamed Ragab , Zhenghua Chen , Min Wu , Chee Keong Kwoh , Xiaoli Li , Cuntai Guan

Over the past decade humans have experienced exponential growth in the use of online resources, in particular social media and microblogging websites such as Facebook, Twitter, YouTube and also mobile applications such as WhatsApp, Line,…

信息检索 · 计算机科学 2015-09-09 Rishabh Soni , K. James Mathai

Customer churn is a major problem and one of the most important concerns for large companies. Due to the direct effect on the revenues of the companies, especially in the telecom field, companies are seeking to develop means to predict…

计算机与社会 · 计算机科学 2019-04-04 Abdelrahim Kasem Ahmad , Assef Jafar , Kadan Aljoumaa

Click-through rates prediction is critical in modern advertising systems, where ranking relevance and user engagement directly impact platform efficiency and business value. In this project, we explore how to model CTR more effectively…

机器学习 · 计算机科学 2025-12-01 Hongyu Yang , Chunxi Wen , Jiyin Zhang , Nanfei Shen , Shijiao Zhang , Xiyan Han

Ensuring the safety of vulnerable road users through accurate prediction of pedestrian crossing intention (PCI) plays a crucial role in the context of autonomous and assisted driving. Analyzing the set of observation video frames in…

计算机视觉与模式识别 · 计算机科学 2025-04-10 Hongbin Liang , Hezhe Qiao , Wei Huang , Qizhou Wang , Mingsheng Shang , Lin Chen

In this paper, we introduce a novel predict-and-optimize method for profit-driven churn prevention. We frame the task of targeting customers for a retention campaign as a regret minimization problem. The main objective is to leverage…

机器学习 · 计算机科学 2023-12-19 Nuria Gómez-Vargas , Sebastián Maldonado , Carla Vairetti

Test-time adaptation aims to adapt pre-trained deep neural networks using solely online unlabelled test data during inference. Although TTA has shown promise in visual applications, its potential in time series contexts remains largely…

机器学习 · 计算机科学 2025-01-06 Peiliang Gong , Mohamed Ragab , Min Wu , Zhenghua Chen , Yongyi Su , Xiaoli Li , Daoqiang Zhang

Conformal prediction is a distribution-free method that wraps a given machine learning model and returns a set of plausible labels that contain the true label with a prescribed coverage rate. In practice, the empirical coverage achieved…

机器学习 · 统计学 2024-05-08 Zhou Wang , Xingye Qiao