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This paper evaluates existing and newly proposed answer selection methods based on pre-trained word embeddings. Word embeddings are highly effective in various natural language processing tasks and their integration into traditional…

信息检索 · 计算机科学 2017-08-16 Rishav Chakravarti , Jiri Navratil , Cicero Nogueira dos Santos

Levering data on social media, such as Twitter and Facebook, requires information retrieval algorithms to become able to relate very short text fragments to each other. Traditional text similarity methods such as tf-idf cosine-similarity,…

信息检索 · 计算机科学 2015-12-03 Cedric De Boom , Steven Van Canneyt , Steven Bohez , Thomas Demeester , Bart Dhoedt

We present an unsupervised approach for discovering semantic representations of mathematical equations. Equations are challenging to analyze because each is unique, or nearly unique. Our method, which we call equation embeddings, finds good…

机器学习 · 统计学 2018-03-28 Kriste Krstovski , David M. Blei

The challenge of solving data mining problems in e-commerce applications such as recommendation system (RS) and click-through rate (CTR) prediction is how to make inferences by constructing combinatorial features from a large number of…

机器学习 · 计算机科学 2021-10-20 Zhenyuan Zhong , Jie Yang , Yacong Ma , Shoubin Dong , Jinlong Hu

The use of subword-level information (e.g., characters, character n-grams, morphemes) has become ubiquitous in modern word representation learning. Its importance is attested especially for morphologically rich languages which generate a…

计算与语言 · 计算机科学 2019-05-07 Yi Zhu , Ivan Vulić , Anna Korhonen

Practical data structures for the edit-sensitive parsing (ESP) are proposed. Given a string S, its ESP tree is equivalent to a context-free grammar G generating just S, which is represented by a DAG. Using the succinct data structures for…

数据结构与算法 · 计算机科学 2015-03-17 Naoya Kishiue , Masaya Nakahara , Shirou Maruyama , Hiroshi Sakamoto

Image classification is a primary task in data analysis where explainable models are crucially demanded in various applications. Although amounts of methods have been proposed to obtain explainable knowledge from the black-box classifiers,…

计算机视觉与模式识别 · 计算机科学 2024-12-31 Ruitao Xie , Jingbang Chen , Limai Jiang , Rui Xiao , Yi Pan , Yunpeng Cai

We propose new static word embeddings optimised for sentence semantic representation. We first extract word embeddings from a pre-trained Sentence Transformer, and improve them with sentence-level principal component analysis, followed by…

计算与语言 · 计算机科学 2025-10-01 Takashi Wada , Yuki Hirakawa , Ryotaro Shimizu , Takahiro Kawashima , Yuki Saito

Word embeddings and convolutional neural networks (CNN) have attracted extensive attention in various classification tasks for Twitter, e.g. sentiment classification. However, the effect of the configuration used to train and generate the…

信息检索 · 计算机科学 2017-03-23 Xiao Yang , Craig Macdonald , Iadh Ounis

Word embeddings are substantially successful in capturing semantic relations among words. However, these lexical semantics are difficult to be interpreted. Definition modeling provides a more intuitive way to evaluate embeddings by…

计算与语言 · 计算机科学 2020-07-21 Haitong Zhang , Yongping Du , Jiaxin Sun , Qingxiao Li

Languages are dynamic entities, where the meanings associated with words constantly change with time. Detecting the semantic variation of words is an important task for various NLP applications that must make time-sensitive predictions.…

计算与语言 · 计算机科学 2023-05-16 Taichi Aida , Danushka Bollegala

This paper describes SChME (Semantic Change Detection with Model Ensemble), a method usedin SemEval-2020 Task 1 on unsupervised detection of lexical semantic change. SChME usesa model ensemble combining signals of distributional models…

计算与语言 · 计算机科学 2020-12-04 Maurício Gruppi , Sibel Adali , Pin-Yu Chen

In this paper, we introduce a variation of the skip-gram model which jointly learns distributed word vector representations and their way of composing to form phrase embeddings. In particular, we propose a learning procedure that…

计算与语言 · 计算机科学 2016-07-22 Xiaochang Peng , Daniel Gildea

Pre-trained word embeddings are widely used for transfer learning in natural language processing. The embeddings are continuous and distributed representations of the words that preserve their similarities in compact Euclidean spaces.…

计算与语言 · 计算机科学 2020-06-25 Halid Ziya Yerebakan , Parmeet Bhatia , Yoshihisa Shinagawa

Embeddings in AI convert symbolic structures into fixed-dimensional vectors, effectively fusing multiple signals. However, the nature of this fusion in real-world data is often unclear. To address this, we introduce two methods: (1)…

机器学习 · 计算机科学 2023-11-21 Zhijin Guo , Zhaozhen Xu , Martha Lewis , Nello Cristianini

Speaker embeddings carry valuable emotion-related information, which makes them a promising resource for enhancing speech emotion recognition (SER), especially with limited labeled data. Traditionally, it has been assumed that emotion…

音频与语音处理 · 电气工程与系统科学 2024-06-03 Ismail Rasim Ulgen , Zongyang Du , Carlos Busso , Berrak Sisman

We present a language independent, unsupervised method for building word embeddings using morphological expansion of text. Our model handles the problem of data sparsity and yields improved word embeddings by relying on training word…

计算与语言 · 计算机科学 2017-11-16 Syed Sarfaraz Akhtar , Arihant Gupta , Avijit Vajpayee , Arjit Srivastava , Manish Shrivastava

We demonstrate the utility of a new methodological tool, neural-network word embedding models, for large-scale text analysis, revealing how these models produce richer insights into cultural associations and categories than possible with…

计算与语言 · 计算机科学 2019-11-13 Austin C. Kozlowski , Matt Taddy , James A. Evans

Learning representations of words in a continuous space is perhaps the most fundamental task in NLP, however words interact in ways much richer than vector dot product similarity can provide. Many relationships between words can be…

In this paper, we introduce a trie-structured Bayesian model for unsupervised morphological segmentation. We adopt prior information from different sources in the model. We use neural word embeddings to discover words that are…

计算与语言 · 计算机科学 2017-04-25 Murathan Kurfalı , Ahmet Üstün , Burcu Can