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Text embedding models serve as a fundamental component in real-world search applications. By mapping queries and documents into a shared embedding space, they deliver competitive retrieval performance with high efficiency. However, their…

Computation and Language · Computer Science 2025-11-03 Qi Liu , Yanzhao Zhang , Mingxin Li , Dingkun Long , Pengjun Xie , Jiaxin Mao

Video understanding plays a fundamental role for content moderation on short video platforms, enabling the detection of inappropriate content. While classification remains the dominant approach for content moderation, it often struggles in…

Information Retrieval · Computer Science 2025-07-03 Hanzhong Liang , Jinghao Shi , Xiang Shen , Zixuan Wang , Vera Wen , Ardalan Mehrani , Zhiqian Chen , Yifan Wu , Zhixin Zhang

We present NER Retriever, a zero-shot retrieval framework for ad-hoc Named Entity Retrieval, a variant of Named Entity Recognition (NER), where the types of interest are not provided in advance, and a user-defined type description is used…

Information Retrieval · Computer Science 2025-09-05 Or Shachar , Uri Katz , Yoav Goldberg , Oren Glickman

GPS trajectory data reveals valuable patterns of human mobility and urban dynamics, supporting a variety of spatial applications. However, traditional methods often struggle to extract deep semantic representations and incorporate…

Computers and Society · Computer Science 2025-06-23 Chunhou Ji , Qiumeng Li

Table annotation is crucial for making web and enterprise tables usable in downstream NLP applications. Unlike textual data where learning semantically rich token or sentence embeddings often suffice, tables are structured combinations of…

Machine Learning · Computer Science 2026-04-22 Ehsan Hoseinzade , Ke Wang , Anandharaju Durai Raju

Topic models have been widely used in discovering latent topics which are shared across documents in text mining. Vector representations, word embeddings and topic embeddings, map words and topics into a low-dimensional and dense real-value…

Computation and Language · Computer Science 2017-02-24 Jarvan Law , Hankz Hankui Zhuo , Junhua He , Erhu Rong

Given a text query, partially relevant video retrieval (PRVR) aims to retrieve untrimmed videos containing relevant moments, wherein event modeling is crucial for partitioning the video into smaller temporal events that partially correspond…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Sa Zhu , Huashan Chen , Wanqian Zhang , Jinchao Zhang , Zexian Yang , Xiaoshuai Hao , Bo Li

Embedding-based retrieval aims to learn a shared semantic representation space for both queries and items, enabling efficient and effective item retrieval through approximate nearest neighbor (ANN) algorithms. In current industrial…

Information Retrieval · Computer Science 2025-10-14 Han Zhang , Yunjiang Jiang , Mingming Li , Haowei Yuan , Yiming Qiu , Wen-Yun Yang

Temporal Information and Event Markup Language (TIE-ML) is a markup strategy and annotation schema to improve the productivity and accuracy of temporal and event related annotation of corpora to facilitate machine learning based model…

Computation and Language · Computer Science 2021-09-29 Damir Cavar , Billy Dickson , Ali Aljubailan , Soyoung Kim

Sentence embedding tasks are important in natural language processing (NLP), but improving their performance while keeping them reliable is still hard. This paper presents a framework that combines pseudo-label generation and model ensemble…

Computation and Language · Computer Science 2025-01-28 Ziwei Liu , Qi Zhang , Lifu Gao

Multimodal Large Language Models (MLLMs), particularly smaller, deployable variants, exhibit a critical deficiency in understanding temporal and procedural visual data, a bottleneck hindering their application in real-world embodied AI.…

Artificial Intelligence · Computer Science 2026-02-24 Zhenkun Gao , Xuhong Wang , Xin Tan , Yuan Xie

We introduce MMTR-Bench, a benchmark designed to evaluate the intrinsic ability of Multimodal Large Language Models (MLLMs) to reconstruct masked text directly from visual context. Unlike conventional question-answering tasks, MMTR-Bench…

Artificial Intelligence · Computer Science 2026-04-28 Jindi Guo , Chaozheng Huang , Xi Fang

The rapid expansion of multimedia content has made accurately retrieving relevant videos from large collections increasingly challenging. Recent advancements in text-video retrieval have focused on cross-modal interactions, large-scale…

Computation and Language · Computer Science 2024-10-17 Donghoon Han , Eunhwan Park , Gisang Lee , Adam Lee , Nojun Kwak

The query-based moment retrieval is a problem of localising a specific clip from an untrimmed video according a query sentence. This is a challenging task that requires interpretation of both the natural language query and the video…

Computer Vision and Pattern Recognition · Computer Science 2020-10-08 Mayu Otani , Yuta Nakashima , Esa Rahtu , Janne Heikkilä

Embedding models are crucial for various natural language processing tasks but can be limited by factors such as limited vocabulary, lack of context, and grammatical errors. This paper proposes a novel approach to improve embedding…

Computation and Language · Computer Science 2024-04-19 Nicholas Harris , Anand Butani , Syed Hashmy

Event-based multimodal large language models (MLLMs) enable robust perception in high-speed and low-light scenarios, addressing key limitations of frame-based MLLMs. However, current event-based MLLMs often rely on dense image-like…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Shaoyu Liu , Jianing Li , Guanghui Zhao , Yunjian Zhang , Wen Jiang , Ming Li , Xiangyang Ji

Most text-video retrieval methods utilize the text-image pre-trained models like CLIP as a backbone. These methods process each sampled frame independently by the image encoder, resulting in high computational overhead and limiting…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Leqi Shen , Tianxiang Hao , Tao He , Sicheng Zhao , Yifeng Zhang , Pengzhang Liu , Yongjun Bao , Guiguang Ding

Extracting top-k keywords and documents using weighting schemes are popular techniques employed in text mining and machine learning for different analysis and retrieval tasks. The weights are usually computed in the data preprocessing step,…

Databases · Computer Science 2021-08-23 Ciprian-Octavian Truica , Elena Apostol , Jérôme Darmont , Ira Assent

Twitter is recognized as a crucial platform for the dissemination and gathering of Cyber Threat Intelligence (CTI). Its capability to provide real-time, actionable intelligence makes it an indispensable tool for detecting security events,…

Cryptography and Security · Computer Science 2024-09-13 Jian Cui , Hanna Kim , Eugene Jang , Dayeon Yim , Kicheol Kim , Yongjae Lee , Jin-Woo Chung , Seungwon Shin , Xiaojing Liao

While most reading comprehension benchmarks for LLMs focus on factual information that can be answered by localizing specific textual evidence, many real-world tasks require understanding distributional information, such as population-level…

Computation and Language · Computer Science 2026-04-21 Pei-Fu Guo , Ya-An Tsai , Chun-Chia Hsu , Kai-Xin Chen , Yun-Da Tsai , Kai-Wei Chang , Nanyun Peng , Mi-Yen Yeh , Shou-De Lin