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This paper introduces a novel framework for modeling temporal events with complex longitudinal dependency that are generated by dependent sources. This framework takes advantage of multidimensional point processes for modeling time of…

Machine Learning · Statistics 2016-10-04 Seyed Abbas Hosseini , Ali Khodadadi , Soheil Arabzade , Hamid R. Rabiee

Urban transit agencies increasingly turn to social media to monitor emerging service risks such as crowding, delays, and safety incidents, yet the signals of concern are sparse, short, and easily drowned by routine chatter. We address this…

Machine Learning · Computer Science 2025-12-09 Fatima Ashraf , Muhammad Ayub Sabir , Jiaxin Deng , Junbiao Pang , Haitao Yu

Acting on time-critical events by processing ever growing social media or news streams is a major technical challenge. Many of these data sources can be modeled as multi-relational graphs. Continuous queries or techniques to search for rare…

Databases · Computer Science 2013-06-12 Sutanay Choudhury , Lawrence Holder , George Chin , John Feo

Since the advent of the web, the amount of data on wen has been increased several million folds. In recent years web data generated is more than data stored for years. One important data format is text. To answer user queries over the…

Information Retrieval · Computer Science 2018-11-19 Chandra Shekhar Yadav

Big data streams are possibly one of the most essential underlying notions. However, data streams are often challenging to handle owing to their rapid pace and limited information lifetime. It is difficult to collect and communicate stream…

Machine Learning · Computer Science 2022-03-03 Christos Karras , Aristeidis Karras , Spyros Sioutas

Extracting topics from large collections of unstructured text-documents has become a central task in current NLP applications and algorithms like NMF, LDA as well as their generalizations are the well-established current state of the art.…

Social and Information Networks · Computer Science 2021-11-23 Mattias Luber , Anton Thielmann , Christoph Weisser , Benjamin Säfken

Query-based text summarization is an important real world problem that requires to condense the prolix text data into a summary under the guidance of the query information provided by users. The topic has been studied for a long time and…

Information Retrieval · Computer Science 2024-10-08 Hang Yu , Jiawei Han

Nowadays, many platforms on the Web offer organized events, allowing users to be organizers or participants. For such platforms, it is beneficial to predict potential event participants. Existing work on this problem tends to borrow…

Machine Learning · Computer Science 2023-10-03 Yihong Zhang , Takahiro Hara

This paper introduces a large collection of time series data derived from Twitter, postprocessed using word embedding techniques, as well as specialized fine-tuned language models. This data comprises the past five years and captures…

Computation and Language · Computer Science 2023-08-07 Daniel Loureiro , Kiamehr Rezaee , Talayeh Riahi , Francesco Barbieri , Leonardo Neves , Luis Espinosa Anke , Jose Camacho-Collados

Topic modeling is a key component in unsupervised learning, employed to identify topics within a corpus of textual data. The rapid growth of social media generates an ever-growing volume of textual data daily, making online topic modeling…

Machine Learning · Computer Science 2025-10-23 Federica Granese , Benjamin Navet , Serena Villata , Charles Bouveyron

In this paper we compare the use of several features in the task of content filtering for video social networks, a very challenging task, not only because the unwanted content is related to very high-level semantic concepts (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2011-01-13 Eduardo Valle , Sandra de Avila , Antonio da Luz , Fillipe de Souza , Marcelo Coelho , Arnaldo Araújo

Today, we have to deal with many data (Big data) and we need to make decisions by choosing an architectural framework to analyze these data coming from different area. Due to this, it become problematic when we want to process these data,…

Software Engineering · Computer Science 2019-01-29 Youness Dendane , Fabio Petrillo , Hamid Mcheick , Souhail Ben Ali

Current pre-trained models applied to summarization are prone to factual inconsistencies which either misrepresent the source text or introduce extraneous information. Thus, comparing the factual consistency of summaries is necessary as we…

Computation and Language · Computer Science 2022-07-12 Xiangru Tang , Alexander Fabbri , Haoran Li , Ziming Mao , Griffin Thomas Adams , Borui Wang , Asli Celikyilmaz , Yashar Mehdad , Dragomir Radev

The literature on machine learning in the context of data streams is vast and growing. However, many of the defining assumptions regarding data-stream learning tasks are too strong to hold in practice, or are even contradictory such that…

Machine Learning · Computer Science 2025-09-09 Jesse Read , Indrė Žliobaitė

A main characteristic of social media is that its diverse content, copiously generated by both standard outlets and general users, constantly competes for the scarce attention of large audiences. Out of this flood of information some topics…

Physics and Society · Physics 2011-12-21 Chunyan Wang , Bernardo A. Huberman

Analyzing ideological discourse even in the age of LLMs remains a challenge, as these models often struggle to capture the key elements that shape real-world narratives. Specifically, LLMs fail to focus on characteristic elements driving…

Computation and Language · Computer Science 2025-04-11 Nishanth Nakshatri , Nikhil Mehta , Siyi Liu , Sihao Chen , Daniel J. Hopkins , Dan Roth , Dan Goldwasser

Social network websites, such as Facebook, YouTube, Lastfm etc, have become a popular platform for users to connect with each other and share content or opinions. They provide rich information for us to study the influence of user's social…

Information Retrieval · Computer Science 2012-06-22 Sanjay Purushotham , Yan Liu , C. -C. Jay Kuo

During the onset of a disaster event, filtering relevant information from the social web data is challenging due to its sparse availability and practical limitations in labeling datasets of an ongoing crisis. In this paper, we hypothesize…

Computation and Language · Computer Science 2020-10-22 Jitin Krishnan , Hemant Purohit , Huzefa Rangwala

A massive amount of reviews are generated daily from various platforms. It is impossible for people to read through tons of reviews and to obtain useful information. Automatic summarizing customer reviews thus is important for identifying…

Computation and Language · Computer Science 2020-06-02 Pengyuan Li , Lei Huang , Guang-jie Ren

Tweet clustering for event detection is a powerful modern method to automate the real-time detection of events. In this work we present a new tweet clustering approach, using a probabilistic approach to incorporate temporal information. By…

Social and Information Networks · Computer Science 2018-11-14 Peter Mathews , Caitlin Gray , Lewis Mitchell , Giang T. Nguyen , Nigel G. Bean