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Dense retrieval compresses texts into single embeddings ranked by cosine similarity. While efficient for recall, this interface is brittle for identity-level matching: minimal compositional edits (negation, role swaps) flip meaning yet…

信息检索 · 计算机科学 2026-04-21 Radoslav Ralev , Aditeya Baral , Iliya Zhechev , Jen Agarwal , Srijith Rajamohan

Remote sensing image change detection is one of the fundamental tasks in remote sensing intelligent interpretation. Its core objective is to identify changes within change regions of interest (CRoI). Current multimodal large models encode…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Zhenyang Huang , Xiao Yu , Yi Zhang , Decheng Wang , Hang Ruan

Security monitoring systems typically treat anomaly detection as identifying statistical deviations from observed data distributions. In cryptographic traffic analysis, however, violations are defined not by rarity but by explicit policy…

密码学与安全 · 计算机科学 2026-02-26 Rahul D Ray

Next token prediction has been the standard training objective used in large language model pretraining. Representations are learned as a result of optimizing for token-level perplexity. We propose Continuous Concept Mixing (CoCoMix), a…

机器学习 · 计算机科学 2025-02-13 Jihoon Tack , Jack Lanchantin , Jane Yu , Andrew Cohen , Ilia Kulikov , Janice Lan , Shibo Hao , Yuandong Tian , Jason Weston , Xian Li

Multimodal sentiment analysis, a pivotal task in affective computing, seeks to understand human emotions by integrating cues from language, audio, and visual signals. While many recent approaches leverage complex attention mechanisms and…

计算与语言 · 计算机科学 2025-05-09 Nischal Mandal , Yang Li

Large Language Models (LLMs) have shown strong capabilities in code generation, but their adherence to fine-grained user intent with multiple constraints remains a significant challenge. Our empirical analysis reveals two key observations:…

软件工程 · 计算机科学 2026-02-03 Zheng Fang , Yihong Dong , Lili Mou , Dongming Jin , Zhi Jin , Ge Li

The Transformer-based model have made significant strides in semantic matching tasks by capturing connections between phrase pairs. However, to assess the relevance of sentence pairs, it is insufficient to just examine the general…

计算与语言 · 计算机科学 2024-12-11 Bo Li , Di Liang , Zixin Zhang

Reasoning about implied relationships (e.g., paraphrastic, common sense, encyclopedic) between pairs of words is crucial for many cross-sentence inference problems. This paper proposes new methods for learning and using embeddings of word…

计算与语言 · 计算机科学 2019-04-09 Mandar Joshi , Eunsol Choi , Omer Levy , Daniel S. Weld , Luke Zettlemoyer

Vision-language retrieval aims to search for similar instances in one modality based on queries from another modality. The primary objective is to learn cross-modal matching representations in a latent common space. Actually, the assumption…

计算机视觉与模式识别 · 计算机科学 2024-12-17 Yang Yang , Wenjuan Xi , Luping Zhou , Jinhui Tang

This work focuses on in-context data augmentation for intent detection. Having found that augmentation via in-context prompting of large pre-trained language models (PLMs) alone does not improve performance, we introduce a novel approach…

Multimodal sentiment analysis remains a challenging task due to the inherent heterogeneity across modalities. Such heterogeneity often manifests as asynchronous signals, imbalanced information between modalities, and interference from…

多媒体 · 计算机科学 2025-11-26 Yadong Liu , Shangfei Wang

Dialog systems must be capable of incorporating new skills via updates over time in order to reflect new use cases or deployment scenarios. Similarly, developers of such ML-driven systems need to be able to add new training data to an…

计算与语言 · 计算机科学 2022-07-26 Stefan Larson , Kevin Leach

Pre-trained Language Models have recently emerged in Information Retrieval as providing the backbone of a new generation of neural systems that outperform traditional methods on a variety of tasks. However, it is still unclear to what…

信息检索 · 计算机科学 2023-01-26 Simon Lupart , Thibault Formal , Stéphane Clinchant

Deriving value from a conversational AI system depends on the capacity of a user to translate the prior knowledge into a configuration. In most cases, discovering the set of relevant turn-level speaker intents is often one of the key steps.…

计算与语言 · 计算机科学 2024-10-22 Mrinal Rawat , Hithesh Sankararaman , Victor Barres

The prohibitive cost of evaluating Large Language Models (LLMs) necessitates efficient alternatives to full-scale benchmarking. Prevalent approaches address this by identifying a small coreset of items to approximate full-benchmark…

人工智能 · 计算机科学 2026-02-04 Yueqi Zhang , Jin Hu , Shaoxiong Feng , Peiwen Yuan , Xinglin Wang , Yiwei Li , Jiayi Shi , Chuyi Tan , Ji Zhang , Boyuan Pan , Yao Hu , Kan Li

The capability of accurately determining code similarity is crucial in many tasks related to software development. For example, it might be essential to identify code duplicates for performing software maintenance. This research introduces…

软件工程 · 计算机科学 2025-04-25 Jorge Martinez-Gil

Fixed reasoning benchmarks evaluate canonical prompts, but semantically valid changes in presentation can still change model behavior. Studies of prompt variation can reveal such failures, but without audit they can mix genuine model errors…

机器学习 · 计算机科学 2026-05-19 Hongmin Li

Few-shot intent classification and slot filling are important but challenging tasks due to the scarcity of finely labeled data. Therefore, current works first train a model on source domains with sufficiently labeled data, and then transfer…

计算与语言 · 计算机科学 2023-12-22 Jie Han , Yixiong Zou , Haozhao Wang , Jun Wang , Wei Liu , Yao Wu , Tao Zhang , Ruixuan Li

Multi-head, key-value attention is the backbone of the widely successful Transformer model and its variants. This attention mechanism uses multiple parallel key-value attention blocks (called heads), each performing two fundamental…

机器学习 · 计算机科学 2022-02-15 Sarthak Mittal , Sharath Chandra Raparthy , Irina Rish , Yoshua Bengio , Guillaume Lajoie

Most dialogue systems in real world rely on predefined intents and answers for QA service, so discovering potential intents from large corpus previously is really important for building such dialogue services. Considering that most…

机器学习 · 计算机科学 2022-01-20 Feng Wei , Zhenbo Chen , Zhenghong Hao , Fengxin Yang , Hua Wei , Bing Han , Sheng Guo