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Supervised learning has gone beyond the expected risk minimization framework. Central to most of these developments is the introduction of more general aggregation functions for losses incurred by the learner. In this paper, we turn towards…

机器学习 · 计算机科学 2024-06-05 Armando J. Cabrera Pacheco , Rabanus Derr , Robert C. Williamson

Database theory is exciting because it studies highly general and practically useful abstractions. Conjunctive query (CQ) evaluation is a prime example: it simultaneously generalizes graph pattern matching, constraint satisfaction, and…

数据库 · 计算机科学 2026-04-07 Mahmoud Abo Khamis , Hung Q. Ngo , Dan Suciu

Integrating high-level context information with low-level details is of central importance in semantic segmentation. Towards this end, most existing segmentation models apply bilinear up-sampling and convolutions to feature maps of…

计算机视觉与模式识别 · 计算机科学 2022-06-20 Hanzhe Hu , Yinbo Chen , Jiarui Xu , Shubhankar Borse , Hong Cai , Fatih Porikli , Xiaolong Wang

Table Question Answering (TableQA) enables natural language interaction with structured tabular data. However, existing large language model (LLM) approaches face critical limitations: context length constraints that restrict data handling…

人工智能 · 计算机科学 2026-03-11 Tong Wang , Chi Jin , Yongkang Chen , Huan Deng , Xiaohui Kuang , Gang Zhao

Feature attribution (FA) methods are widely used in explainable AI (XAI) to help users understand how the inputs of a machine learning model contribute to its outputs. However, different FA models often provide disagreeing importance scores…

Solving complex geometric problems inherently requires interleaved reasoning: a tight alternation between constructing diagrams and performing logical deductions. Although recent Multimodal Large Language Models (MLLMs) have demonstrated…

Federated learning (FL) offers privacy-preserving decentralized machine learning, optimizing models at edge clients without sharing private data. Simultaneously, foundation models (FMs) have gained traction in the artificial intelligence…

机器学习 · 计算机科学 2023-10-06 Sixing Yu , J. Pablo Muñoz , Ali Jannesari

We propose semi-random features for nonlinear function approximation. The flexibility of semi-random feature lies between the fully adjustable units in deep learning and the random features used in kernel methods. For one hidden layer…

机器学习 · 计算机科学 2017-11-22 Kenji Kawaguchi , Bo Xie , Vikas Verma , Le Song

We propose an extensive framework for additive regression models for correlated functional responses, allowing for multiple partially nested or crossed functional random effects with flexible correlation structures for, e.g., spatial,…

统计方法学 · 统计学 2013-11-26 Fabian Scheipl , Ana-Maria Staicu , Sonja Greven

Fine-tuning on task-specific question-answer pairs is a predominant method for enhancing the performance of instruction-tuned large language models (LLMs) on downstream tasks. However, in certain specialized domains, such as healthcare or…

计算与语言 · 计算机科学 2024-10-18 Shuyang Jiang , Yusheng Liao , Ya Zhang , Yanfeng Wang , Yu Wang

AI systems that serve natural language questions over databases promise to unlock tremendous value. Such systems would allow users to leverage the powerful reasoning and knowledge capabilities of language models (LMs) alongside the scalable…

Among the various forms of reasoning studied in the context of artificial intelligence, qualitative reasoning makes it possible to infer new knowledge in the context of imprecise, incomplete information without numerical values. In this…

人工智能 · 计算机科学 2026-02-10 Quentin Cohen-Solal , Alexandre Niveau , Maroua Bouzid

Ensuring robust and fair interview assessment remains a key challenge in AI-driven evaluation. This paper presents CoMAI, a general-purpose multi-agent interview framework designed for diverse assessment scenarios. In contrast to monolithic…

多智能体系统 · 计算机科学 2026-03-18 Gengxin Sun , Ruihao Yu , Liangyi Yin , Yunqi Yang , Bin Zhang , Zhiwei Xu

The relation classification is to identify semantic relations between two entities in a given text. While existing models perform well for classifying inverse relations with large datasets, their performance is significantly reduced for…

计算与语言 · 计算机科学 2022-04-27 Chunliu Dou , Shaojuan Wu , Xiaowang Zhang , Zhiyong Feng , Kewen Wang

We consider the problem of aligning a pair of databases with jointly Gaussian features. We consider two algorithms, complete database alignment via MAP estimation among all possible database alignments, and partial alignment via a…

机器学习 · 统计学 2019-09-04 Osman Emre Dai , Daniel Cullina , Negar Kiyavash

Question retrieval is a crucial subtask for community question answering. Previous research focus on supervised models which depend heavily on training data and manual feature engineering. In this paper, we propose a novel unsupervised…

计算与语言 · 计算机科学 2018-03-12 Minghua Zhang , Yunfang Wu

Query Focused Summarization (QFS) has been addressed mostly using extractive methods. Such methods, however, produce text which suffers from low coherence. We investigate how abstractive methods can be applied to QFS, to overcome such…

计算与语言 · 计算机科学 2018-01-26 Tal Baumel , Matan Eyal , Michael Elhadad

Query auto-completion (QAC) is a fundamental feature in search engines where the task is to suggest plausible completions of a prefix typed in the search bar. Previous queries in the user session can provide useful context for the user's…

信息检索 · 计算机科学 2021-08-24 Nishant Yadav , Rajat Sen , Daniel N. Hill , Arya Mazumdar , Inderjit S. Dhillon

In this paper a framework for Automatic Query Expansion (AQE) is proposed using distributed neural language model word2vec. Using semantic and contextual relation in a distributed and unsupervised framework, word2vec learns a low…

信息检索 · 计算机科学 2016-06-27 Dwaipayan Roy , Debjyoti Paul , Mandar Mitra , Utpal Garain

We present MCQA, a learning-based algorithm for multimodal question answering. MCQA explicitly fuses and aligns the multimodal input (i.e. text, audio, and video), which forms the context for the query (question and answer). Our approach…

计算与语言 · 计算机科学 2020-04-28 Abhishek Kumar , Trisha Mittal , Dinesh Manocha