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Time series prediction can be generalized as a process that extracts useful information from historical records and then determines future values. Learning long-range dependencies that are embedded in time series is often an obstacle for…

神经与进化计算 · 计算机科学 2018-10-25 Yuxiu Hua , Zhifeng Zhao , Rongpeng Li , Xianfu Chen , Zhiming Liu , Honggang Zhang

Early rumor detection (ERD) on social media platform is very challenging when limited, incomplete and noisy information is available. Most of the existing methods have largely worked on event-level detection that requires the collection of…

社会与信息网络 · 计算机科学 2020-03-03 Jie Gao , Sooji Han , Xingyi Song , Fabio Ciravegna

It is a challenging and complex task to acquire information from different regions of a disaster-affected area in a timely fashion. The extensive spread and reach of social media and networks allow people to share information in real-time.…

社会与信息网络 · 计算机科学 2019-08-06 Md. Yasin Kabir , Sanjay Madria

By illuminating latent structures in a corpus of text, topic models are an essential tool for categorizing, summarizing, and exploring large collections of documents. Probabilistic topic models, such as latent Dirichlet allocation (LDA),…

信息检索 · 计算机科学 2021-12-07 Bahareh Harandizadeh , J. Hunter Priniski , Fred Morstatter

The primary objective of this work is to develop a Neural Network based on LSTM to predict stock market movements using tweets. Word embeddings, used in the LSTM network, are initialised using Stanford's GloVe embeddings, pretrained…

人工智能 · 计算机科学 2021-01-25 Kavyashree Ranawat , Stefano Giani

Cities have been a thriving place for citizens over the centuries due to their complex infrastructure. The emergence of the Cyber-Physical-Social Systems (CPSS) and context-aware technologies boost a growing interest in analysing,…

社会与信息网络 · 计算机科学 2017-05-30 Nazli Farajidavar , Sefki Kolozali , Payam Barnaghi

Despite many years of research into latent Dirichlet allocation (LDA), applying LDA to collections of non-categorical items is still challenging. Yet many problems with much richer data share a similar structure and could benefit from the…

机器学习 · 统计学 2020-01-08 Iryna Korshunova , Hanchen Xiong , Mateusz Fedoryszak , Lucas Theis

As one of the simplest probabilistic topic modeling techniques, latent Dirichlet allocation (LDA) has found many important applications in text mining, computer vision and computational biology. Recent training algorithms for LDA can be…

机器学习 · 计算机科学 2012-06-11 Jia Zeng , Zhi-Qiang Liu , Xiao-Qin Cao

We investigate different strategies for automatic offensive language classification on German Twitter data. For this, we employ a sequentially combined BiLSTM-CNN neural network. Based on this model, three transfer learning tasks to improve…

计算与语言 · 计算机科学 2018-11-08 Gregor Wiedemann , Eugen Ruppert , Raghav Jindal , Chris Biemann

In this paper, we consider the problem of latent sentiment detection in Online Social Networks such as Twitter. We demonstrate the benefits of using the underlying social network as an Ising prior to perform network aided sentiment…

社会与信息网络 · 计算机科学 2014-01-10 Rohit Negi , Vinay Uday Prabhu , Miguel Rodrigues

Content-based video retrieval is one of the most challenging tasks in surveillance systems. In this study, Latent Dirichlet Allocation (LDA) topic model is used to annotate surveillance videos in an unsupervised manner. In scene…

计算机视觉与模式识别 · 计算机科学 2025-02-11 Mohammad Kianpisheh

Aspect-based opinion mining is widely applied to review data to aggregate or summarize opinions of a product, and the current state-of-the-art is achieved with Latent Dirichlet Allocation (LDA)-based model. Although social media data like…

计算与语言 · 计算机科学 2016-09-22 Kar Wai Lim , Wray Buntine

Humans learn from the occurrence of events in a different place and time to predict similar trajectories of events. We define Loosely Decoupled Timeseries (LDT) phenomena as two or more events that could happen in different places and…

机器学习 · 计算机科学 2022-08-29 Christian Manasseh , Razvan Veliche , Jared Bennett , Hamilton Clouse

Current works on Information Centric Networking assume the spectrum of caching strategies under the Least Recently/ Frequently Used (LRFU) scheme as the de-facto standard, due to the ease of implementation and easier analysis of such…

社会与信息网络 · 计算机科学 2014-07-07 Amandianeze O Nwana , Salman Avestimehr , Tsuhan Chen

Latent Dirichlet allocation (LDA) is a popular topic modeling technique in academia but less so in industry, especially in large-scale applications involving search engine and online advertising systems. A main underlying reason is that the…

信息检索 · 计算机科学 2015-12-08 Yi Wang , Xuemin Zhao , Zhenlong Sun , Hao Yan , Lifeng Wang , Zhihui Jin , Liubin Wang , Yang Gao , Ching Law , Jia Zeng

Inferring topics from the overwhelming amount of short texts becomes a critical but challenging task for many content analysis tasks, such as content charactering, user interest profiling, and emerging topic detecting. Existing methods such…

计算与语言 · 计算机科学 2016-09-28 Jipeng Qiang , Ping Chen , Tong Wang , Xindong Wu

An increasing number of people are using online social networking services (SNSs), and a significant amount of information related to experiences in consumption is shared in this new media form. Text mining is an emerging technique for…

计算与语言 · 计算机科学 2016-11-18 Eun Hee Ko , Diego Klabjan

Personal attacks in the context of social media conversations often lead to fast-paced derailment, leading to even more harmful exchanges being made. State-of-the-art systems for the detection of such conversational derailment often make…

计算与语言 · 计算机科学 2023-11-20 Steven Leung , Filippos Papapolyzos

The latent Dirichlet allocation (LDA) model is a widely-used latent variable model in machine learning for text analysis. Inference for this model typically involves a single-site collapsed Gibbs sampling step for latent variables…

统计计算 · 统计学 2016-08-03 Xin Zhang , Scott A. Sisson

Caching techniques are widely used in the era of cloud computing from applications, such as Web caches to infrastructures, Memcached and memory caches in computer architectures. Prediction of cached data can greatly help improve cache…

机器学习 · 计算机科学 2020-08-03 Pengcheng Li , Yongbin Gu