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In recent years, the importance of research data and the need to archive and to share it in the scientific community have increased enormously. This introduces a whole new set of challenges for digital libraries. In the social sciences…

Digital Libraries · Computer Science 2017-05-03 Nadine Dulisch , Andreas Oskar Kempf , Philipp Schaer

Extrapolation in Large language models (LLMs) for open-ended inquiry encounters two pivotal issues: (1) hallucination and (2) expensive training costs. These issues present challenges for LLMs in specialized domains and personalized data,…

Computation and Language · Computer Science 2024-05-22 Yu-Hsiang Lin , Huang-Ting Shieh , Chih-Yu Liu , Kuang-Ting Lee , Hsiao-Cheng Chang , Jing-Lun Yang , Yu-Sheng Lin

Most existing large language models (LLMs) are expensive to adapt after deployment, especially when a task requires newly produced information or niche domain knowledge. Recent work has shown that, by manipulating and optimizing their…

Computation and Language · Computer Science 2026-05-15 Zeyu Huang , Adhiguna Kuncoro , Qixuan Feng , Jiajun Shen , Lucio Dery , Arthur Szlam , Marc'Aurelio Ranzato

Knowledge tracing (KT) aims to predict students' responses to practices based on their historical question-answering behaviors. However, most current KT methods focus on improving overall AUC, leaving ample room for optimization in modeling…

Artificial Intelligence · Computer Science 2023-09-06 Moyu Zhang , Xinning Zhu , Chunhong Zhang , Feng Pan , Wenchen Qian , Hui Zhao

Effective conversational search demands a deep understanding of user intent across multiple dialogue turns. Users frequently use abbreviations and shift topics in the middle of conversations, posing challenges for conventional retrievers.…

Information Retrieval · Computer Science 2025-09-25 Seunghan Yang , Juntae Lee , Jihwan Bang , Kyuhong Shim , Minsoo Kim , Simyung Chang

Microblogging platforms such as Twitter are increasingly being used in event detection. Existing approaches mainly use machine learning models and rely on event-related keywords to collect the data for model training. These approaches make…

Information Retrieval · Computer Science 2019-12-03 Akansha Bhardwaj , Jie Yang , Philippe Cudré-Mauroux

In the past few years, there has been a huge growth in Twitter sentiment analysis having already provided a fair amount of research on sentiment detection of public opinion among Twitter users. Given the fact that Twitter messages are…

Computation and Language · Computer Science 2019-02-15 Sotiris K. Tasoulis , Aristidis G. Vrahatis , Spiros V. Georgakopoulos , Vassilis P. Plagianakos

The proliferation of fake news has had far-reaching implications on politics, the economy, and society at large. While Fake news detection methods have been employed to mitigate this issue, they primarily depend on two essential elements:…

Computation and Language · Computer Science 2024-03-18 Guanghua Li , Wensheng Lu , Wei Zhang , Defu Lian , Kezhong Lu , Rui Mao , Kai Shu , Hao Liao

In this paper we address the following problem in web document and information retrieval (IR): How can we use long-term context information to gain better IR performance? Unlike common IR methods that use bag of words representation for…

Information Retrieval · Computer Science 2015-03-02 H. Palangi , L. Deng , Y. Shen , J. Gao , X. He , J. Chen , X. Song , R. Ward

With the rise in popularity of public social media and micro-blogging services, most notably Twitter, the people have found a venue to hear and be heard by their peers without an intermediary. As a consequence, and aided by the public…

Computation and Language · Computer Science 2016-06-21 Prashanth Vijayaraghavan , Soroush Vosoughi , Deb Roy

Large language models (LLMs) have shown remarkable capabilities in many languages beyond English. Yet, LLMs require more inference steps when generating non-English text due to their reliance on English-centric tokenizers and vocabulary,…

Computation and Language · Computer Science 2025-12-01 Atsuki Yamaguchi , Aline Villavicencio , Nikolaos Aletras

Large Language Models (LLMs) excel at tackling various natural language tasks. However, due to the significant costs involved in re-training or fine-tuning them, they remain largely static and difficult to personalize. Nevertheless, a…

Information Retrieval · Computer Science 2024-02-20 Jinheon Baek , Nirupama Chandrasekaran , Silviu Cucerzan , Allen herring , Sujay Kumar Jauhar

Twitter is a popular social network platform where users can interact and post texts of up to 280 characters called tweets. Hashtags, hyperlinked words in tweets, have increasingly become crucial for tweet retrieval and search. Using…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-01-29 Vibhuti Gupta , Rattikorn Hewett

Since a tweet is limited to 140 characters, it is ambiguous and difficult for traditional Natural Language Processing (NLP) tools to analyse. This research presents KeyXtract which enhances the machine learning based Stanford CoreNLP…

Computation and Language · Computer Science 2017-08-10 Tharindu Weerasooriya , Nandula Perera , S. R. Liyanage

Query expansion is a functionality of search engines that suggests a set of related queries for a user-issued keyword query. Typical corpus-driven keyword query expansion approaches return popular words in the results as expanded queries.…

Information Retrieval · Computer Science 2011-04-19 Ziyang Liu , Sivaramakrishnan Natarajan , Yi Chen

The extensive use of social media for sharing and obtaining information has resulted in the development of topic detection models to facilitate the comprehension of the overwhelming amount of short and distributed posts. Probabilistic topic…

Information Retrieval · Computer Science 2020-09-22 A. Yıldırım , S. Uskudarli

Geo-tags from micro-blog posts have been shown to be useful in many data mining applications. This work seeks to find out if the location type derived from these geo-tags can benefit input methods, which attempts to predict the next word a…

Social and Information Networks · Computer Science 2018-09-25 Di He

Various domain users are increasingly leveraging real-time social media data to gain rapid situational awareness. However, due to the high noise in the deluge of data, effectively determining semantically relevant information can be…

Social and Information Networks · Computer Science 2019-10-09 Luke S. Snyder , Yi-Shan Lin , Morteza Karimzadeh , Dan Goldwasser , David S. Ebert

Twitter stream has become a large source of information for many people, but the magnitude of tweets and the noisy nature of its content have made harvesting the knowledge from Twitter a challenging task for researchers for a long time.…

Computation and Language · Computer Science 2018-06-21 Øystein Repp , Heri Ramampiaro

We propose a domain-independent framework for searching and retrieving facts and relationships within natural language text sources. In this framework, an extraction task over a text collection is expressed as a query that combines text…

Databases · Computer Science 2009-08-19 Davood Rafiei , Haobin Li