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Pooling is an essential component of a wide variety of sentence representation and embedding models. This paper explores generalized pooling methods to enhance sentence embedding. We propose vector-based multi-head attention that includes…

计算与语言 · 计算机科学 2022-02-24 Qian Chen , Zhen-Hua Ling , Xiaodan Zhu

We analyze a word embedding method in supervised tasks. It maps words on a sphere such that words co-occurring in similar contexts lie closely. The similarity of contexts is measured by the distribution of substitutes that can fill them. We…

计算与语言 · 计算机科学 2014-07-28 Volkan Cirik , Deniz Yuret

We present an unsupervised explainable word embedding technique, called EVE, which is built upon the structure of Wikipedia. The proposed model defines the dimensions of a semantic vector representing a word using human-readable labels,…

计算与语言 · 计算机科学 2017-02-23 M. Atif Qureshi , Derek Greene

We present a novel incremental learning approach for unsupervised word segmentation that combines features from probabilistic modeling and model selection. This includes super-additive penalties for addressing the cognitive burden imposed…

计算与语言 · 计算机科学 2016-09-26 Ruey-Cheng Chen

Existing approaches to automatic VerbNet-style verb classification are heavily dependent on feature engineering and therefore limited to languages with mature NLP pipelines. In this work, we propose a novel cross-lingual transfer method for…

计算与语言 · 计算机科学 2017-07-24 Ivan Vulić , Nikola Mrkšić , Anna Korhonen

Unsupervised methods for learning distributed representations of words are ubiquitous in today's NLP research, but far less is known about the best ways to learn distributed phrase or sentence representations from unlabelled data. This…

计算与语言 · 计算机科学 2016-02-11 Felix Hill , Kyunghyun Cho , Anna Korhonen

Labeling training examples at scale is a perennial challenge in machine learning. Self-supervision methods compensate for the lack of direct supervision by leveraging prior knowledge to automatically generate noisy labeled examples. Deep…

机器学习 · 计算机科学 2020-12-24 Hunter Lang , Hoifung Poon

Dimensionality reduction is often used as an initial step in data exploration, either as preprocessing for classification or regression or for visualization. Most dimensionality reduction techniques to date are unsupervised; they do not…

机器学习 · 统计学 2020-06-17 Jake S. Rhodes , Adele Cutler , Guy Wolf , Kevin R. Moon

It remains difficult to evaluate machine learning classifiers in the absence of a large, labeled dataset. While labeled data can be prohibitively expensive or impossible to obtain, unlabeled data is plentiful. Here, we introduce…

机器学习 · 计算机科学 2025-10-15 Divya Shanmugam , Shuvom Sadhuka , Manish Raghavan , John Guttag , Bonnie Berger , Emma Pierson

Self-supervised representation learning targets to learn convnet-based image representations from unlabeled data. Inspired by the success of NLP methods in this area, in this work we propose a self-supervised approach based on spatially…

计算机视觉与模式识别 · 计算机科学 2020-02-28 Spyros Gidaris , Andrei Bursuc , Nikos Komodakis , Patrick Pérez , Matthieu Cord

For challenging machine learning problems such as zero-shot learning and fine-grained categorization, embedding learning is the machinery of choice because of its ability to learn generic notions of similarity, as opposed to class-specific…

计算机视觉与模式识别 · 计算机科学 2019-12-19 Ujjal Kr Dutta , Mehrtash Harandi , Chandra Sekhar Chellu

By representing words with probability densities rather than point vectors, probabilistic word embeddings can capture rich and interpretable semantic information and uncertainty. The uncertainty information can be particularly meaningful in…

计算与语言 · 计算机科学 2018-04-30 Ben Athiwaratkun , Andrew Gordon Wilson

We investigate solving partial integro-differential equations (PIDEs) using unsupervised deep learning in this paper. To price options, assuming underlying processes follow Levy processes, we require to solve PIDEs. In supervised deep…

计算金融 · 定量金融 2022-07-04 Ali Hirsa , Weilong Fu

Although deep learning are commonly employed for image recognition, usually huge amount of labeled training data is required, which may not always be readily available. This leads to a noticeable performance disparity when compared to…

计算机视觉与模式识别 · 计算机科学 2024-02-08 Enoch Solomon , Abraham Woubie , Eyael Solomon Emiru

Neural word representations have proven useful in Natural Language Processing (NLP) tasks due to their ability to efficiently model complex semantic and syntactic word relationships. However, most techniques model only one representation…

计算与语言 · 计算机科学 2015-11-23 Andrew Trask , Phil Michalak , John Liu

In complex visual recognition tasks it is typical to adopt multiple descriptors, that describe different aspects of the images, for obtaining an improved recognition performance. Descriptors that have diverse forms can be fused into a…

计算机视觉与模式识别 · 计算机科学 2015-06-15 Jayaraman J. Thiagarajan , Karthikeyan Natesan Ramamurthy , Andreas Spanias

Unsupervised dimensionality reduction is one of the commonly used techniques in the field of high dimensional data recognition problems. The deep autoencoder network which constrains the weights to be non-negative, can learn a low…

计算机视觉与模式识别 · 计算机科学 2020-09-18 Anyong Qin , Zhaowei Shang , Zhuolin Tan , Taiping Zhang , Yuan Yan Tang

We introduce an unsupervised discriminative model for the task of retrieving experts in online document collections. We exclusively employ textual evidence and avoid explicit feature engineering by learning distributed word representations…

信息检索 · 计算机科学 2017-09-19 Christophe Van Gysel , Maarten de Rijke , Marcel Worring

Relation extraction (RE) plays an important role in extracting knowledge from unstructured text but requires a large amount of labeled corpus. To reduce the expensive annotation efforts, semisupervised learning aims to leverage both labeled…

计算与语言 · 计算机科学 2021-03-16 Yusen Lin

We address hypernymy detection, i.e., whether an is-a relationship exists between words (x, y), with the help of large textual corpora. Most conventional approaches to this task have been categorized to be either pattern-based or…

计算与语言 · 计算机科学 2020-10-13 Changlong Yu , Jialong Han , Peifeng Wang , Yangqiu Song , Hongming Zhang , Wilfred Ng , Shuming Shi