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Despite its troubled past, the AOL Query Log continues to be an important resource to the research community -- particularly for tasks like search personalisation. When using the query log these ranking experiments, little attention is…

Information Retrieval · Computer Science 2022-01-24 Sean MacAvaney , Craig Macdonald , Iadh Ounis

Modern text simplification (TS) heavily relies on the availability of gold standard data to build machine learning models. However, existing studies show that parallel TS corpora contain inaccurate simplifications and incorrect alignments.…

Computation and Language · Computer Science 2021-07-30 Laura Vásquez-Rodríguez , Matthew Shardlow , Piotr Przybyła , Sophia Ananiadou

We are presenting a set of multilingual text analysis tools that can help analysts in any field to explore large document collections quickly in order to determine whether the documents contain information of interest, and to find the…

Computation and Language · Computer Science 2007-05-23 Camelia Ignat , Bruno Pouliquen , Ralf Steinberger , Tomaz Erjavec

Insights into social phenomenon can be gleaned from trends and patterns in corpora of documents associated with that phenomenon. Recent years have witnessed the use of computational techniques, mostly based on keywords, to analyze large…

Human-Computer Interaction · Computer Science 2017-11-03 Sreya Guha

Despite the widespread use of unsupervised models, very few methods are designed to explain them. Most explanation methods explain a scalar model output. However, unsupervised models output representation vectors, the elements of which are…

Machine Learning · Computer Science 2023-06-14 Chris Lin , Hugh Chen , Chanwoo Kim , Su-In Lee

We present SetExpander, a corpus-based system for expanding a seed set of terms into a more complete set of terms that belong to the same semantic class. SetExpander implements an iterative end-to end workflow for term set expansion. It…

Artificial Intelligence · Computer Science 2018-07-27 Jonathan Mamou , Oren Pereg , Moshe Wasserblat , Ido Dagan , Yoav Goldberg , Alon Eirew , Yael Green , Shira Guskin , Peter Izsak , Daniel Korat

Heterogeneous data pose serious challenges to data analysis tasks, including exploration and visualization. Current techniques often utilize dimensionality reductions, aggregation, or conversion to numerical values to analyze heterogeneous…

Graphics · Computer Science 2017-10-10 Mahsa Mirzargar , Ross T. Whitaker , Robert M. Kirby

Post-hoc explanation methods are gaining popularity for interpreting, understanding, and debugging neural networks. Most analyses using such methods explain decisions in response to inputs drawn from the test set. However, the test set may…

Machine Learning · Computer Science 2020-12-17 Serena Booth , Yilun Zhou , Ankit Shah , Julie Shah

The semantic similarity between documents of a text corpus can be visualized using map-like metaphors based on two-dimensional scatterplot layouts. These layouts result from a dimensionality reduction on the document-term matrix or a…

Computation and Language · Computer Science 2024-07-26 Daniel Atzberger , Tim Cech , Willy Scheibel , Jürgen Döllner , Michael Behrisch , Tobias Schreck

This paper presents a whitening-based contrastive learning method for sentence embedding learning (WhitenedCSE), which combines contrastive learning with a novel shuffled group whitening. Generally, contrastive learning pulls distortions of…

Computation and Language · Computer Science 2023-06-09 Wenjie Zhuo , Yifan Sun , Xiaohan Wang , Linchao Zhu , Yi Yang

Pretrained contextualized embeddings are powerful word representations for structured prediction tasks. Recent work found that better word representations can be obtained by concatenating different types of embeddings. However, the…

Computation and Language · Computer Science 2021-06-02 Xinyu Wang , Yong Jiang , Nguyen Bach , Tao Wang , Zhongqiang Huang , Fei Huang , Kewei Tu

Analyzing textual data is a very challenging task because of the huge volume of data generated daily. Fundamental issues in text analysis include the lack of structure in document datasets, the need for various preprocessing steps %(e.g.,…

Databases · Computer Science 2016-12-20 Ciprian-Octavian Truică , Jérôme Darmont , Julien Velcin

In this paper we propose a novel method of augmenting parallel text corpora which promises good quality and is also capable of producing many fold larger corpora than the seed corpus we start with. We do not need any additional monolingual…

Computation and Language · Computer Science 2024-10-07 Vibhuti Kumari , Narayana Murthy Kavi

In this paper we propose a general framework for topic-specific summarization of large text corpora and illustrate how it can be used for the analysis of news databases. Our framework, concise comparative summarization (CCS), is built on…

Computation and Language · Computer Science 2014-04-30 Jinzhu Jia , Luke Miratrix , Bin Yu , Brian Gawalt , Laurent El Ghaoui , Luke Barnesmoore , Sophie Clavier

In microblog retrieval, query expansion can be essential to obtain good search results due to the short size of queries and posts. Since information in microblogs is highly dynamic, an up-to-date index coupled with pseudo-relevance feedback…

Information Retrieval · Computer Science 2018-10-09 Flávio Martins , João Magalhães , Jamie Callan

This paper presents a new challenging information extraction task in the domain of materials science. We develop an annotation scheme for marking information on experiments related to solid oxide fuel cells in scientific publications, such…

Computation and Language · Computer Science 2020-06-05 Annemarie Friedrich , Heike Adel , Federico Tomazic , Johannes Hingerl , Renou Benteau , Anika Maruscyk , Lukas Lange

Universal multimodal embedding (UME) maps heterogeneous inputs into a shared retrieval space with a single model. Recent approaches improve UME by generating explicit chain-of-thought (CoT) rationales before extracting embeddings, enabling…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Chenwei He , Xiangzhao Hao , Tianyu Yang , Yuxiang Ma , Yuheng Jia , Lingxiang Wu , Chaoyang Zhao , Haiyun Guo , Jinqiao Wang

Humans perform co-saliency detection by first summarizing the consensus knowledge in the whole group and then searching corresponding objects in each image. Previous methods usually lack robustness, scalability, or stability for the first…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Ni Zhang , Junwei Han , Nian Liu , Ling Shao

With the enrichment of literature resources, researchers are facing the growing problem of information explosion and knowledge overload. To help scholars retrieve literature and acquire knowledge successfully, clarifying the semantic…

Computation and Language · Computer Science 2021-12-03 Bowen Ma , Chengzhi Zhang , Yuzhuo Wang , Sanhong Deng

Chain-based reasoning methods like chain of thought (CoT) play a rising role in solving reasoning tasks for large language models (LLMs). However, the causal hallucinations between a step of reasoning and corresponding state transitions are…

Computation and Language · Computer Science 2025-03-25 Kangsheng Wang , Xiao Zhang , Juntao Lyu , Tianyu Hu , Huimin Ma