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Kernel Principal Component Analysis (KPCA) is a key machine learning algorithm for extracting nonlinear features from data. In the presence of a large volume of high dimensional data collected in a distributed fashion, it becomes very…

机器学习 · 计算机科学 2016-02-16 Maria-Florina Balcan , Yingyu Liang , Le Song , David Woodruff , Bo Xie

Principal Component Analysis (PCA) and K-means constitute fundamental techniques in multivariate analysis. Although they are frequently applied independently or sequentially to cluster observations, the relationship between them, especially…

机器学习 · 统计学 2025-12-02 Victor Saquicela , Kenneth Palacio-Baus , Mario Chifla

We propose a topic modeling approach to the prediction of preferences in pairwise comparisons. We develop a new generative model for pairwise comparisons that accounts for multiple shared latent rankings that are prevalent in a population…

机器学习 · 计算机科学 2015-01-27 Weicong Ding , Prakash Ishwar , Venkatesh Saligrama

Many data types arising from data mining applications can be modeled as bipartite graphs, examples include terms and documents in a text corpus, customers and purchasing items in market basket analysis and reviewers and movies in a movie…

信息检索 · 计算机科学 2007-05-23 H. Zha , X. He , C. Ding , M. Gu , H. Simon

We propose an unsupervised keyphrase extraction model that encodes topical information within a multipartite graph structure. Our model represents keyphrase candidates and topics in a single graph and exploits their mutually reinforcing…

信息检索 · 计算机科学 2018-04-17 Florian Boudin

Clustering algorithms remain valuable tools for grouping and summarizing the most important aspects of data. Example areas where this is the case include image segmentation, dimension reduction, signals analysis, model order reduction,…

数值分析 · 数学 2024-12-24 Guy B. Oldaker , Maria Emelianenko

Coupled cluster theory provides hierarchical many-particle models and is presently considered as the ultimate benchmark in quantum chemistry. Despite is practical significance, a rigorous mathematical analysis of its properties is still in…

数学物理 · 物理学 2018-01-24 Heinz-Jürgen Flad , Gohar Flad-Harutyunyan

We investigate the problem of compiling the generation of graph states to arbitrarily many distributed homogeneous quantum processing units (QPUs), providing a scalable partitioning algorithm and graph state generation protocol to minimize…

We study the distributed computing setting in which there are multiple servers, each holding a set of points, who wish to compute functions on the union of their point sets. A key task in this setting is Principal Component Analysis (PCA),…

机器学习 · 计算机科学 2014-12-24 Maria-Florina Balcan , Vandana Kanchanapally , Yingyu Liang , David Woodruff

In this work we address the problem of argument search. The purpose of argument search is the distillation of pro and contra arguments for requested topics from large text corpora. In previous works, the usual approach is to use a standard…

计算与语言 · 计算机科学 2019-08-27 Michael Fromm , Evgeniy Faerman , Thomas Seidl

In many machine learning tasks, models are trained to predict structure data such as graphs. For example, in natural language processing, it is very common to parse texts into dependency trees or abstract meaning representation (AMR)…

Retrieval-Augmented Generation (RAG) systems are widely adopted in knowledge-intensive NLP tasks, but current evaluations often overlook the structural complexity and multi-step reasoning required in real-world scenarios. These benchmarks…

计算与语言 · 计算机科学 2025-12-16 Jeongsoo Lee , Daeyong Kwon , Kyohoon Jin

Recent advancements in retrieval-augmented generation (RAG) have enhanced large language models in question answering by integrating external knowledge. However, challenges persist in achieving global understanding and aligning responses…

计算与语言 · 计算机科学 2025-06-24 Quanwei Tang , Sophia Yat Mei Lee , Junshuang Wu , Dong Zhang , Shoushan Li , Erik Cambria , Guodong Zhou

Mind-map generation aims to process a document into a hierarchical structure to show its central idea and branches. Such a manner is more conducive to understanding the logic and semantics of the document than plain text. Recently, a…

计算与语言 · 计算机科学 2023-12-20 Zhuowei Zhang , Mengting Hu , Yinhao Bai , Zhen Zhang

Bipartite ranking is a fundamental ranking problem that learns to order relevant instances ahead of irrelevant ones. The pair-wise approach for bi-partite ranking construct a quadratic number of pairs to solve the problem, which is…

机器学习 · 计算机科学 2017-08-25 Wei-Yuan Shen , Hsuan-Tien Lin

Deliberative processes play a vital role in shaping opinions, decisions and policies in our society. In contrast to persuasive debates, deliberation aims to foster understanding of conflicting perspectives among interested parties. The…

计算机与社会 · 计算机科学 2024-04-17 Moritz Plenz , Philipp Heinisch , Anette Frank , Philipp Cimiano

Keyphrase extraction from documents is useful to a variety of applications such as information retrieval and document summarization. This paper presents an end-to-end method called DivGraphPointer for extracting a set of diversified…

计算与语言 · 计算机科学 2019-05-21 Zhiqing Sun , Jian Tang , Pan Du , Zhi-Hong Deng , Jian-Yun Nie

This paper studies the problem of learning clusters which are consistently present in different (continuously valued) representations of observed data. Our setup differs slightly from the standard approach of (co-) clustering as we use the…

机器学习 · 统计学 2010-09-21 David R. Hardoon , Kristiaan Pelcksman

Pairwise clustering, in general, partitions a set of items via a known similarity function. In our treatment, clustering is modeled as a transductive prediction problem. Thus rather than beginning with a known similarity function, the…

机器学习 · 计算机科学 2017-06-21 Stephen Pasteris , Fabio Vitale , Claudio Gentile , Mark Herbster

We propose a novel factor graph model for argument mining, designed for settings in which the argumentative relations in a document do not necessarily form a tree structure. (This is the case in over 20% of the web comments dataset we…

计算与语言 · 计算机科学 2017-04-25 Vlad Niculae , Joonsuk Park , Claire Cardie