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Quantifying bias in retrieval functions through document retrievability scores is vital for assessing recall-oriented retrieval systems. However, many studies investigating retrieval model bias lack validation of their query generation…

信息检索 · 计算机科学 2024-04-16 Aman Sinha , Priyanshu Raj Mall , Dwaipayan Roy

We develop necessary and sufficient conditions and a novel provably consistent and efficient algorithm for discovering topics (latent factors) from observations (documents) that are realized from a probabilistic mixture of shared latent…

机器学习 · 计算机科学 2015-12-07 Weicong Ding , Prakash Ishwar , Venkatesh Saligrama

Knowledge-intensive tasks, such as open-domain question answering (QA), require access to a large amount of world or domain knowledge. A common approach for knowledge-intensive tasks is to employ a retrieve-then-read pipeline that first…

计算与语言 · 计算机科学 2023-01-26 Wenhao Yu , Dan Iter , Shuohang Wang , Yichong Xu , Mingxuan Ju , Soumya Sanyal , Chenguang Zhu , Michael Zeng , Meng Jiang

Retrieving molecular structures from tandem mass spectra is a crucial step in rapid compound identification. Existing retrieval methods, such as traditional mass spectral library matching, suffer from limited spectral library coverage,…

机器学习 · 计算机科学 2025-11-11 Yiwen Zhang , Keyan Ding , Yihang Wu , Xiang Zhuang , Yi Yang , Qiang Zhang , Huajun Chen

The model's ability to understand synonymous expression is crucial in many kinds of downstream tasks. It will make the model to better understand the similarity between context, and more robust to the synonym substitution attack. However,…

计算与语言 · 计算机科学 2023-03-28 Zhouhong Gu , Sihang Jiang , Wenhao Huang , Jiaqing Liang , Hongwei Feng , Yanghua Xiao

This study presents a novel multimodal fusion model for three-dimensional mineral prospectivity mapping (3D MPM), effectively integrating structural and fluid information through a deep network architecture. Leveraging Convolutional Neural…

机器学习 · 计算机科学 2023-10-10 Yang Zheng , Hao Deng , Ruisheng Wang , Jingjie Wu

Querying knowledge bases using ontologies is usually performed using dedicated query languages, question-answering systems, or visual query editors for Knowledge Graphs. We propose a novel approach that enables users to query the knowledge…

人机交互 · 计算机科学 2025-12-02 Benedikt Kantz , Kevin Innerebner , Peter Waldert , Stefan Lengauer , Elisabeth Lex , Tobias Schreck

Large Language Models (LLMs) have achieved impressive progress in natural language processing, but their limited ability to retain long-term context constrains performance on document-level or multi-turn tasks. Retrieval-Augmented…

计算与语言 · 计算机科学 2025-05-20 Zhangyu Wang , Siyuan Gao , Rong Zhou , Hao Wang , Li Ning

Despite an ever growing number of word representation models introduced for a large number of languages, there is a lack of a standardized technique to provide insights into what is captured by these models. Such insights would help the…

计算与语言 · 计算机科学 2019-12-12 Gözde Gül Şahin , Clara Vania , Ilia Kuznetsov , Iryna Gurevych

Words have been represented in a high-dimensional vector space that encodes their semantic similarities, enabling downstream applications such as retrieving synonyms, antonyms, and relevant contexts. However, despite recent advances in…

计算与语言 · 计算机科学 2024-09-25 Genta Indra Winata , Ruochen Zhang , David Ifeoluwa Adelani

The number of published research papers has experienced exponential growth in recent years, which makes it crucial to develop new methods for efficient and versatile information extraction and knowledge discovery. To address this need, we…

信息检索 · 计算机科学 2023-06-09 Yamei Tu , Rui Qiu , Han-Wei Shen

Data-driven approaches like deep learning are rapidly advancing planetary science, particularly in Mars exploration. Despite recent progress, most existing benchmarks remain confined to closed-set supervised visual tasks and do not support…

计算机视觉与模式识别 · 计算机科学 2026-02-17 Shuoyuan Wang , Yiran Wang , Hongxin Wei

Thanks to information extraction and semantic Web efforts, search on unstructured text is increasingly refined using semantic annotations and structured knowledge bases. However, most users cannot become familiar with the schema of…

信息检索 · 计算机科学 2012-12-27 Uma Sawant , Soumen Chakrabarti

Exploiting information induced from (query-specific) clustering of top-retrieved documents has long been proposed as a means for improving precision at the very top ranks of the returned results. We present a novel language model approach…

信息检索 · 计算机科学 2014-01-17 Oren Kurland , Eyal Krikon

Traditional retrieval methods rely on transforming user queries into vector representations and retrieving documents based on cosine similarity within an embedding space. While efficient and scalable, this approach often fails to handle…

计算与语言 · 计算机科学 2025-03-25 Felix Faltings , Wei Wei , Yujia Bao

Query clustering organizes queries into groups that reflect shared latent capability demands, enabling capability-aware LLM evaluation. Existing clustering methods, which primarily rely on semantic taxonomies or embeddings, often fail to…

人工智能 · 计算机科学 2026-05-19 Fangzhou Wu , Sandeep Silwal , Qiuyi Zhang

The recent advancements in generative language models have demonstrated their ability to memorize knowledge from documents and recall knowledge to respond to user queries effectively. Building upon this capability, we propose to enable…

多媒体 · 计算机科学 2024-02-19 Yongqi Li , Wenjie Wang , Leigang Qu , Liqiang Nie , Wenjie Li , Tat-Seng Chua

Semantic retrieval is crucial for modern applications yet remains underexplored in current research. Existing datasets are limited to single languages, single images, or singular retrieval conditions, often failing to fully exploit the…

Text embedding models enable semantic search, powering several NLP applications like Retrieval Augmented Generation by efficient information retrieval (IR). However, text embedding models are commonly studied in scenarios where the training…

信息检索 · 计算机科学 2025-10-07 Dipam Goswami , Liying Wang , Bartłomiej Twardowski , Joost van de Weijer

We present a framework for generating universal semantic embeddings of chemical elements to advance materials inference and discovery. This framework leverages ElementBERT, a domain-specific BERT-based natural language processing model…

计算与语言 · 计算机科学 2026-04-30 Yunze Jia , Yuehui Xian , Yangyang Xu , Pengfei Dang , Xiangdong Ding , Jun Sun , Yumei Zhou , Dezhen Xue