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Data annotation often involves multiple sources with different cost-quality trade-offs, such as fast large language models (LLMs), slow reasoning models, and human experts. In this work, we study the problem of routing inputs to the most…

Machine Learning · Computer Science 2026-02-04 Hao Zeng , Huipeng Huang , Xinhao Qu , Jianguo Huang , Bingyi Jing , Hongxin Wei

Annotated data is an essential ingredient in natural language processing for training and evaluating machine learning models. It is therefore very desirable for the annotations to be of high quality. Recent work, however, has shown that…

Computation and Language · Computer Science 2022-09-27 Jan-Christoph Klie , Bonnie Webber , Iryna Gurevych

For many structured learning tasks, the data annotation process is complex and costly. Existing annotation schemes usually aim at acquiring completely annotated structures, under the common perception that partial structures are of low…

Machine Learning · Computer Science 2019-06-13 Qiang Ning , Hangfeng He , Chuchu Fan , Dan Roth

State-of-the-art computer vision approaches rely on huge amounts of annotated data. The collection of such data is a time consuming process since it is mainly performed by humans. The literature shows that semi-automatic annotation…

Computer Vision and Pattern Recognition · Computer Science 2019-11-05 Jonas Jäger , Gereon Reus , Joachim Denzler , Viviane Wolff , Klaus Fricke-Neuderth

Pool-based active learning (AL) aims to optimize the annotation process (i.e., labeling) as the acquisition of annotations is often time-consuming and therefore expensive. For this purpose, an AL strategy queries annotations intelligently…

Machine Learning · Computer Science 2022-01-06 Marek Herde , Denis Huseljic , Bernhard Sick , Adrian Calma

This study centers on overcoming the challenge of selecting the best annotators for each query in Active Learning (AL), with the objective of minimizing misclassifications. AL recognizes the challenges related to cost and time when…

Machine Learning · Computer Science 2025-08-02 Diana Mortagua

Crowdsourcing platforms are often used to collect datasets for training machine learning models, despite higher levels of inaccurate labeling compared to expert labeling. There are two common strategies to manage the impact of such noise.…

Computation and Language · Computer Science 2022-06-14 Derek Chen , Zhou Yu , Samuel R. Bowman

The laborious and costly nature of affect annotation is a key detrimental factor for obtaining large scale corpora with valid and reliable affect labels. Motivated by the lack of tools that can effectively determine an annotator's…

Labeling visual data is expensive and time-consuming. Crowdsourcing systems promise to enable highly parallelizable annotations through the participation of monetarily or otherwise motivated workers, but even this approach has its limits.…

Human-Computer Interaction · Computer Science 2024-09-04 Christopher Klugmann , Rafid Mahmood , Guruprasad Hegde , Amit Kale , Daniel Kondermann

Current approaches to the annotation process focus on annotation schemas, languages for annotation, or are very application driven. In this paper it is proposed that a more flexible architecture for annotation requires a knowledge component…

Digital Libraries · Computer Science 2007-05-23 Afzal Ballim , Nastaran Fatemi , Hatem Ghorbel , Vincenzo Pallotta

When developing new large language models (LLMs), a key step is evaluating their final performance, often by computing the win-rate against a reference model based on external feedback. Human feedback is the gold standard, particularly for…

Machine Learning · Computer Science 2025-02-26 Zhaoyi Zhou , Yuda Song , Andrea Zanette

Human annotation of training samples is expensive, laborious, and sometimes challenging, especially for Natural Language Processing (NLP) tasks. To reduce the labeling cost and enhance the sample efficiency, Active Learning (AL) technique…

Computation and Language · Computer Science 2024-01-17 Xuesong Wang

It is known that annotating named entities in unstructured and semi-structured data sets by their concepts improves the effectiveness of answering queries over these data sets. As every enterprise has a limited budget of time or…

Databases · Computer Science 2018-01-09 Ali Vakilian , Yodsawalai Chodpathumwan , Arash Termehchy , Amir Nayyeri

Although the annotation paradigm based on Large Language Models (LLMs) has made significant breakthroughs in recent years, its actual deployment still has two core bottlenecks: first, the cost of calling commercial APIs in large-scale…

Computation and Language · Computer Science 2025-06-23 Yao Lu , Zhaiyuan Ji , Jiawei Du , Yu Shanqing , Qi Xuan , Tianyi Zhou

Modern consumer banking applications require accurate and efficient retrieval of information in response to user queries. Mapping user utterances to the most relevant Frequently Asked Questions (FAQs) is a crucial component of these…

Artificial Intelligence · Computer Science 2025-10-17 Mahmood Hegazy , Aaron Rodrigues , Azzam Naeem

In the context of text classification, the financial burden of annotation exercises for creating training data is a critical issue. Active learning techniques, particularly those rooted in uncertainty sampling, offer a cost-effective…

Computation and Language · Computer Science 2024-06-19 Hamidreza Rouzegar , Masoud Makrehchi

Data annotation is a time-consuming and labor-intensive process for many NLP tasks. Although there exist various methods to produce pseudo data labels, they are often task-specific and require a decent amount of labeled data to start with.…

Computation and Language · Computer Science 2021-09-01 Shuohang Wang , Yang Liu , Yichong Xu , Chenguang Zhu , Michael Zeng

Third-party annotation is the status quo for labeling text, but egocentric information such as sentiment and belief can at best only be approximated by a third-person proxy. We introduce author labeling, an annotation technique where the…

Computation and Language · Computer Science 2026-01-08 Marcus Ma , Cole Johnson , Nolan Bridges , Jackson Trager , Georgios Chochlakis , Shrikanth Narayanan

Construction of human-curated annotated datasets for abstractive text summarization (ATS) is very time-consuming and expensive because creating each instance requires a human annotator to read a long document and compose a shorter summary…

Supervised learning relies on data annotation which usually is time-consuming and therefore expensive. A longstanding strategy to reduce annotation costs is active learning, an iterative process, in which a human annotates only data…

Computation and Language · Computer Science 2026-02-03 Julia Romberg , Christopher Schröder , Julius Gonsior , Katrin Tomanek , Fredrik Olsson