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A significant shortcoming of current state-of-the-art (SOTA) named-entity recognition (NER) systems is their lack of generalization to unseen domains, which poses a major problem since obtaining labeled data for NER in a new domain is…

人工智能 · 计算机科学 2021-11-16 Nguyen Van Hoang , Soeren Hougaard Mulvad , Dexter Neo Yuan Rong , Yang Yue

Federated learning has received great attention for its capability to train a large-scale model in a decentralized manner without needing to access user data directly. It helps protect the users' private data from centralized collecting.…

机器学习 · 计算机科学 2023-02-07 Guodong Long , Ming Xie , Tao Shen , Tianyi Zhou , Xianzhi Wang , Jing Jiang , Chengqi Zhang

We consider the problem of training a classification model with group annotated training data. Recent work has established that, if there is distribution shift across different groups, models trained using the standard empirical risk…

机器学习 · 计算机科学 2022-04-21 Vihari Piratla , Praneeth Netrapalli , Sunita Sarawagi

Ensemble learning has had many successes in supervised learning, but it has been rare in unsupervised learning and dimensionality reduction. This study explores dimensionality reduction ensembles, using principal component analysis and…

机器学习 · 统计学 2017-10-13 Colleen M. Farrelly

We present the zero-shot entity linking task, where mentions must be linked to unseen entities without in-domain labeled data. The goal is to enable robust transfer to highly specialized domains, and so no metadata or alias tables are…

计算与语言 · 计算机科学 2019-06-19 Lajanugen Logeswaran , Ming-Wei Chang , Kenton Lee , Kristina Toutanova , Jacob Devlin , Honglak Lee

A major impediment in rapidly deploying object detection models for instance detection is the lack of large annotated datasets. For example, finding a large labeled dataset containing instances in a particular kitchen is unlikely. Each new…

计算机视觉与模式识别 · 计算机科学 2017-08-08 Debidatta Dwibedi , Ishan Misra , Martial Hebert

Record fusion is the task of aggregating multiple records that correspond to the same real-world entity in a database. We can view record fusion as a machine learning problem where the goal is to predict the "correct" value for each…

机器学习 · 计算机科学 2020-06-19 Alireza Heidari , George Michalopoulos , Shrinu Kushagra , Ihab F. Ilyas , Theodoros Rekatsinas

While model fairness improvement has been explored previously, existing methods invariably rely on adjusting explicit sensitive attribute values in order to improve model fairness in downstream tasks. However, we observe a trend in which…

机器学习 · 计算机科学 2024-09-30 Hongliang Ni , Lei Han , Tong Chen , Shazia Sadiq , Gianluca Demartini

Federated Learning enables visual models to be trained on-device, bringing advantages for user privacy (data need never leave the device), but challenges in terms of data diversity and quality. Whilst typical models in the datacenter are…

机器学习 · 计算机科学 2020-07-20 Tzu-Ming Harry Hsu , Hang Qi , Matthew Brown

Federated learning allows a large number of devices to jointly learn a model without sharing data. In this work, we enable clients with limited computing power to perform action recognition, a computationally heavy task. We first perform…

分布式、并行与集群计算 · 计算机科学 2021-07-27 Pranjal Jain , Shreyas Goenka , Saurabh Bagchi , Biplab Banerjee , Somali Chaterji

An applied problem facing all areas of data science is harmonizing data sources. Joining data from multiple origins with unmapped and only partially overlapping features is a prerequisite to developing and testing robust, generalizable…

Motivated by distributed machine learning settings such as Federated Learning, we consider the problem of fitting a statistical model across a distributed collection of heterogeneous data sets whose similarity structure is encoded by a…

统计理论 · 数学 2021-11-30 Dominic Richards , Sahand N. Negahban , Patrick Rebeschini

This paper addresses unsupervised representation learning on tabular data containing multiple views generated by distinct sources of measurement. Traditional methods, which tackle this problem using the multi-view framework, are constrained…

机器学习 · 计算机科学 2023-06-01 Tennison Liu , Jeroen Berrevoets , Zhaozhi Qian , Mihaela van der Schaar

The i.i.d. assumption is a useful idealization that underpins many successful approaches to supervised machine learning. However, its violation can lead to models that learn to exploit spurious correlations in the training data, rendering…

机器学习 · 计算机科学 2020-06-15 Daniel Pace , Alessandra Russo , Murray Shanahan

Recently, there has been the development of Split Learning, a framework for distributed computation where model components are split between the client and server (Vepakomma et al., 2018b). As Split Learning scales to include many different…

计算机视觉与模式识别 · 计算机科学 2019-10-10 Vivek Sharma , Praneeth Vepakomma , Tristan Swedish , Ken Chang , Jayashree Kalpathy-Cramer , Ramesh Raskar

In recent studies, the generalization properties for distributed learning and random features assumed the existence of the target concept over the hypothesis space. However, this strict condition is not applicable to the more common…

机器学习 · 计算机科学 2023-08-30 Jian Li , Yong Liu , Weiping Wang

For languages with no annotated resources, transferring knowledge from rich-resource languages is an effective solution for named entity recognition (NER). While all existing methods directly transfer from source-learned model to a target…

计算与语言 · 计算机科学 2020-07-16 Qianhui Wu , Zijia Lin , Guoxin Wang , Hui Chen , Börje F. Karlsson , Biqing Huang , Chin-Yew Lin

Deep neural networks have shown the ability to extract universal feature representations from data such as images and text that have been useful for a variety of learning tasks. However, the fruits of representation learning have yet to be…

机器学习 · 计算机科学 2023-03-28 Liam Collins , Hamed Hassani , Aryan Mokhtari , Sanjay Shakkottai

Visual recognition tasks are often limited to dealing with a small subset of classes simply because the labels for the remaining classes are unavailable. We are interested in identifying novel concepts in a dataset through representation…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Geeho Kim , Junoh Kang , Bohyung Han

Federated Learning is a recent approach to train statistical models on distributed datasets without violating privacy constraints. The data locality principle is preserved by sharing the model instead of the data between clients and the…

机器学习 · 统计学 2022-08-30 Mohamad Mohamad , Julian Neubert , Juan Segundo Argayo