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This paper presents a novel concept learning framework for enhancing model interpretability and performance in visual classification tasks. Our approach appends an unsupervised explanation generator to the primary classifier network and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-04 Tanmay Garg , Deepika Vemuri , Vineeth N Balasubramanian

With the development of high computational devices, deep neural networks (DNNs), in recent years, have gained significant popularity in many Artificial Intelligence (AI) applications. However, previous efforts have shown that DNNs were…

Computation and Language · Computer Science 2019-04-12 Wei Emma Zhang , Quan Z. Sheng , Ahoud Alhazmi , Chenliang Li

Despite the many attempts and approaches for anomaly detection explored over the years, the automatic detection of rare events in data communication networks remains a complex problem. In this paper we introduce Net-GAN, a novel approach to…

Artificial Intelligence · Computer Science 2020-10-19 Gastón García González , Pedro Casas , Alicia Fernández , Gabriel Gómez

We propose a novel architecture, the event-based GASSOM for learning and extracting invariant representations from event streams originating from neuromorphic vision sensors. The framework is inspired by feed-forward cortical models for…

Computer Vision and Pattern Recognition · Computer Science 2016-06-22 Thusitha N. Chandrapala , Bertram E. Shi

Recent work has explored integrating autoregressive language models with energy-based models (EBMs) to enhance text generation capabilities. However, learning effective EBMs for text is challenged by the discrete nature of language. This…

Computation and Language · Computer Science 2023-11-14 Xuwang Yin

In the contemporary digital landscape, media content stands as the foundation for political news analysis, offering invaluable insights sourced from various channels like news articles, social media updates, speeches, and reports. Natural…

Information Retrieval · Computer Science 2025-02-25 Muhammad Arslan , Saba Munawar , Christophe Cruz

We present a new machine learning and text information extraction approach to detection of cyber threat events in Twitter that are novel (previously non-extant) and developing (marked by significance with respect to similarity with a…

Information Retrieval · Computer Science 2019-07-19 Avishek Bose , Vahid Behzadan , Carlos Aguirre , William H. Hsu

We study the extent to which online social networks can be connected to open knowledge bases. The problem is referred to as learning social knowledge graphs. We propose a multi-modal Bayesian embedding model, GenVector, to learn latent…

Computation and Language · Computer Science 2016-04-21 Zhilin Yang , Jie Tang , William Cohen

Natural language processing (NLP) tasks, ranging from text classification to text generation, have been revolutionised by the pre-trained language models, such as BERT. This allows corporations to easily build powerful APIs by encapsulating…

Computation and Language · Computer Science 2021-03-19 Xuanli He , Lingjuan Lyu , Qiongkai Xu , Lichao Sun

We present an approach for generating clarification questions with the goal of eliciting new information that would make the given textual context more complete. We propose that modeling hypothetical answers (to clarification questions) as…

Computation and Language · Computer Science 2019-04-05 Sudha Rao , Hal Daumé

During broadcast events such as the Superbowl, the U.S. Presidential and Primary debates, etc., Twitter has become the de facto platform for crowds to share perspectives and commentaries about them. Given an event and an associated…

Social and Information Networks · Computer Science 2012-12-24 Yuheng Hu , Ajita John , Fei Wang , Subbarao Kambhampati

Generative Adversarial Networks (GANs) have been studied in text generation to tackle the exposure bias problem. Despite their remarkable development, they adopt autoregressive structures so suffering from high latency in both training and…

Computation and Language · Computer Science 2024-10-03 Da Ren , Yi Cai , Qing Li

Accounting for the increased concern for public safety, automatic abnormal event detection and recognition in a surveillance scene is crucial. It is a current open study subject because of its intricacy and utility. The identification of…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Anikeit Sethi , Krishanu Saini , Sai Mounika Mididoddi

Scenario generation is an important step in the operation and planning of power systems with high renewable penetrations. In this work, we proposed a data-driven approach for scenario generation using generative adversarial networks, which…

Machine Learning · Computer Science 2018-02-06 Yize Chen , Yishen Wang , Daniel Kirschen , Baosen Zhang

Despite the rapid development of adversarial machine learning, most adversarial attack and defense researches mainly focus on the perturbation-based adversarial examples, which is constrained by the input images. In comparison with existing…

Computer Vision and Pattern Recognition · Computer Science 2020-02-10 Xiaosen Wang , Kun He , Chuanbiao Song , Liwei Wang , John E. Hopcroft

The occurrence of new events in a system is typically driven by external causes and by previous events taking place inside the system. This is a general statement, applying to a range of situations including, more recently, to the activity…

Physics and Society · Physics 2018-11-21 Kazuki Fujita , Alexey Medvedev , Shinsuke Koyama , Renaud Lambiotte , Shigeru Shinomoto

We present a probabilistic model of events in continuous time in which each event triggers a Poisson process of successor events. The ensemble of observed events is thereby modeled as a superposition of Poisson processes. Efficient…

Machine Learning · Computer Science 2012-03-19 Aleksandr Simma , Michael I. Jordan

Estimation of Distribution Algorithms (EDAs) require flexible probability models that can be efficiently learned and sampled. Generative Adversarial Networks (GAN) are generative neural networks which can be trained to implicitly model the…

Neural and Evolutionary Computing · Computer Science 2016-08-09 Malte Probst

Modern applications of artificial neural networks have yielded remarkable performance gains in a wide range of tasks. However, recent studies have discovered that such modelling strategy is vulnerable to Adversarial Examples, i.e. examples…

Computer Vision and Pattern Recognition · Computer Science 2019-04-24 João Monteiro , Isabela Albuquerque , Zahid Akhtar , Tiago H. Falk

Generating qualitative responses has always been a challenge for human-computer dialogue systems. Existing dialogue systems generally derive from either retrieval-based or generative-based approaches, both of which have their own pros and…

Computation and Language · Computer Science 2020-05-01 Jiayi Zhang , Chongyang Tao , Zhenjing Xu , Qiaojing Xie , Wei Chen , Rui Yan