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This paper presents an approach for grounding phrases in images which jointly learns multiple text-conditioned embeddings in a single end-to-end model. In order to differentiate text phrases into semantically distinct subspaces, we propose…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Bryan A. Plummer , Paige Kordas , M. Hadi Kiapour , Shuai Zheng , Robinson Piramuthu , Svetlana Lazebnik

We present path2vec, a new approach for learning graph embeddings that relies on structural measures of pairwise node similarities. The model learns representations for nodes in a dense space that approximate a given user-defined graph…

计算与语言 · 计算机科学 2019-04-15 Andrey Kutuzov , Mohammad Dorgham , Oleksiy Oliynyk , Chris Biemann , Alexander Panchenko

Post-processing of static embedding has beenshown to improve their performance on both lexical and sequence-level tasks. However, post-processing for contextualized embeddings is an under-studied problem. In this work, we question the…

计算与语言 · 计算机科学 2022-09-16 Hassan Sajjad , Firoj Alam , Fahim Dalvi , Nadir Durrani

Learned vector representations of words are useful tools for many information retrieval and natural language processing tasks due to their ability to capture lexical semantics. However, while many such tasks involve or even rely on named…

计算与语言 · 计算机科学 2020-02-13 Satya Almasian , Andreas Spitz , Michael Gertz

Unsupervised text embeddings extraction is crucial for text understanding in machine learning. Word2Vec and its variants have received substantial success in mapping words with similar syntactic or semantic meaning to vectors close to each…

计算与语言 · 计算机科学 2018-05-30 Furong Huang , Animashree Anandkumar

We propose two methods of learning vector representations of words and phrases that each combine sentence context with structural features extracted from dependency trees. Using several variations of neural network classifier, we show that…

计算与语言 · 计算机科学 2015-11-20 James Cross , Bing Xiang , Bowen Zhou

Measuring the quality of a generated sequence against a set of references is a central problem in many learning frameworks, be it to compute a score, to assign a reward, or to perform discrimination. Despite great advances in model…

机器学习 · 计算机科学 2020-03-06 Florian Schmidt , Thomas Hofmann

Text representations using neural word embeddings have proven effective in many NLP applications. Recent researches adapt the traditional word embedding models to learn vectors of multiword expressions (concepts/entities). However, these…

计算与语言 · 计算机科学 2018-12-21 Walid Shalaby , Wlodek Zadrozny , Hongxia Jin

Word2Vec is a prominent model for natural language processing (NLP) tasks. Similar inspiration is found in distributed embeddings for new state-of-the-art (SotA) deep neural networks. However, wrong combination of hyper-parameters can…

计算与语言 · 计算机科学 2021-04-20 Tosin P. Adewumi , Foteini Liwicki , Marcus Liwicki

It has become a de-facto standard to represent words as elements of a vector space (word2vec, GloVe). While this approach is convenient, it is unnatural for language: words form a graph with a latent hierarchical structure, and this…

计算与语言 · 计算机科学 2020-10-07 Max Ryabinin , Sergei Popov , Liudmila Prokhorenkova , Elena Voita

Many current state-of-the-art methods for text recognition are based on purely local information and ignore the semantic correlation between text and its surrounding visual context. In this paper, we propose a post-processing approach to…

计算机视觉与模式识别 · 计算机科学 2018-10-30 Ahmed Sabir , Francesc Moreno-Noguer , Lluís Padró

The ability to extract high-quality translation dictionaries from monolingual word embedding spaces depends critically on the geometric similarity of the spaces -- their degree of "isomorphism." We address the root-cause of faulty…

计算与语言 · 计算机科学 2023-07-06 Kelly Marchisio , Neha Verma , Kevin Duh , Philipp Koehn

Sentiment analysis is one of the well-known tasks and fast growing research areas in natural language processing (NLP) and text classifications. This technique has become an essential part of a wide range of applications including politics,…

计算与语言 · 计算机科学 2017-11-27 Seyed Mahdi Rezaeinia , Ali Ghodsi , Rouhollah Rahmani

Graph representation learning (also known as network embedding) has been extensively researched with varying levels of granularity, ranging from nodes to graphs. While most prior work in this area focuses on node-level representation,…

机器学习 · 计算机科学 2023-06-05 Lili Wang , Chenghan Huang , Weicheng Ma , Xinyuan Cao , Soroush Vosoughi

Detecting keywords in texts is important for many text mining applications. Graph-based methods have been commonly used to automatically find the key concepts in texts, however, relevant information provided by embeddings has not been…

计算与语言 · 计算机科学 2022-05-05 Jorge A. V. Tohalino , Thiago C. Silva , Diego R. Amancio

Most state-of-the-art models in natural language processing (NLP) are neural models built on top of large, pre-trained, contextual language models that generate representations of words in context and are fine-tuned for the task at hand.…

计算与语言 · 计算机科学 2020-10-13 Brian Lester , Daniel Pressel , Amy Hemmeter , Sagnik Ray Choudhury , Srinivas Bangalore

With a simple architecture and the ability to learn meaningful word embeddings efficiently from texts containing billions of words, word2vec remains one of the most popular neural language models used today. However, as only a single…

机器学习 · 统计学 2017-06-09 Franziska Horn

This work studies the representational mapping across multimodal data such that given a piece of the raw data in one modality the corresponding semantic description in terms of the raw data in another modality is immediately obtained. Such…

计算与语言 · 计算机科学 2015-12-01 Zachary Seymour , Yingming Li , Zhongfei Zhang

We address the problem of tuning word embeddings for specific use cases and domains. We propose a new method that automatically combines multiple domain-specific embeddings, selected from a wide range of pre-trained domain-specific…

计算与语言 · 计算机科学 2019-09-06 Laura Rettig , Julien Audiffren , Philippe Cudré-Mauroux

While paragraph embedding models are remarkably effective for downstream classification tasks, what they learn and encode into a single vector remains opaque. In this paper, we investigate a state-of-the-art paragraph embedding method…

计算与语言 · 计算机科学 2019-06-11 Tu Vu , Mohit Iyyer