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As privacy features in Android operating system improve, privacy-invasive apps may gradually shift their focus to non-standard and covert channels for leaking private user/device information. Such leaks also remain largely undetected by…

密码学与安全 · 计算机科学 2022-10-03 Sajjad Pourali , Nayanamana Samarasinghe , Mohammad Mannan

We study the problem of word-level confidence estimation in subword-based end-to-end (E2E) models for automatic speech recognition (ASR). Although prior works have proposed training auxiliary confidence models for ASR systems, they do not…

音频与语音处理 · 电气工程与系统科学 2021-03-12 David Qiu , Qiujia Li , Yanzhang He , Yu Zhang , Bo Li , Liangliang Cao , Rohit Prabhavalkar , Deepti Bhatia , Wei Li , Ke Hu , Tara N. Sainath , Ian McGraw

The Assisted Commercial Authentication Service (ACAS) is a semi-assisted signal authentication concept currently being defined for Galileo, based on the E6-C encrypted signal. Leveraging the assumption that the true E6-C encrypted signal…

信号处理 · 电气工程与系统科学 2023-07-25 Jón Winkel , Ignacio Fernandez-Hernandez , Cillian O'Driscoll

Popular instant messaging applications such as WhatsApp and Signal provide end-to-end encryption for billions of users. They rely on a centralized, application-specific server to distribute public keys and relay encrypted messages between…

密码学与安全 · 计算机科学 2022-10-19 Tarun Kumar Yadav , Devashish Gosain , Amir Herzberg , Daniel Zappala , Kent Seamons

A novel semantic communication (SC)-assisted secrecy transmission framework is proposed. In particular, the legitimate transmitter (Tx) sends the superimposed semantic and bit stream to the legitimate receiver (Rx), where the information…

信息论 · 计算机科学 2024-02-23 Xidong Mu , Yuanwei Liu

Recently multi-channel end-to-end (ME2E) ASR systems have emerged. While streaming single-channel end-to-end ASR has been extensively studied, streaming ME2E ASR is limited in exploration. Additionally, recent studies call attention to the…

音频与语音处理 · 电气工程与系统科学 2024-09-18 Xiangzhu Kong , Tianqi Ning , Hao Huang , Zhijian Ou

With over 3 billion users globally, mobile instant messaging apps have become indispensable for both personal and professional communication. Besides plain messaging, many services implement additional features such as delivery and read…

End-to-end Speech-to-text Translation (E2E-ST), which directly translates source language speech to target language text, is widely useful in practice, but traditional cascaded approaches (ASR+MT) often suffer from error propagation in the…

计算与语言 · 计算机科学 2021-02-10 Junkun Chen , Mingbo Ma , Renjie Zheng , Liang Huang

With the accelerated adoption of end-to-end encryption, there is an opportunity to re-architect security and anti-abuse primitives in a manner that preserves new privacy expectations. In this paper, we consider two novel protocols for…

密码学与安全 · 计算机科学 2023-04-07 Kurt Thomas , Sarah Meiklejohn , Michael A. Specter , Xiang Wang , Xavier Llorà , Stephan Somogyi , David Kleidermacher

The attention-based encoder-decoder modeling paradigm has achieved promising results on a variety of speech processing tasks like automatic speech recognition (ASR), text-to-speech (TTS) and among others. This paradigm takes advantage of…

音频与语音处理 · 电气工程与系统科学 2021-07-23 Shi-Yan Weng , Berlin Chen

This paper presents a novel approach to achieving secure wireless communication by leveraging the inherent characteristics of wireless channels through end-to-end learning using a single-input-multiple-output (SIMO) autoencoder (AE). To…

信号处理 · 电气工程与系统科学 2024-08-13 Abdullahi Mohammad , Mahmoud Tukur Kabir , Mikko Valkama , Bo Tan

With the deepening trend of paperless workflows, signatures as a means of identity authentication are gradually shifting from traditional ink-on-paper to electronic formats.Despite the availability of dynamic pressure-sensitive and…

计算机视觉与模式识别 · 计算机科学 2025-11-13 RuiQiang Zhang , Zehua Ma , Guanjie Wang , Chang Liu , Hengyi Wang , Weiming Zhang

WhatsApp is a popular messaging app used by over a billion users around the globe. Due to this popularity, understanding misbehavior on WhatsApp is an important issue. The sending of unwanted junk messages by unknown contacts via WhatsApp…

密码学与安全 · 计算机科学 2022-02-15 Pushkal Agarwal , Aravindh Raman , Damilola Ibosiola , Gareth Tyson , Nishanth Sastry , Kiran Garimella

In this paper, we introduce an autoencoder (AE)-based scheme for end-to-end optimization of a multi-user molecule mixture communication system. In the proposed scheme, each transmitter leverages an encoder network that maps the user symbol…

Cloud computing is the broad and diverse phenomenon. Users are allowed to store huge amount of data on cloud storage for future use. Most of the cloud service providers store data in plain text format or in secured manner but client will…

密码学与安全 · 计算机科学 2022-02-02 Fahina , Shwetha U , Poorna , Supriya , Rama Moorthy H , Dr. Vasudeva

While end-to-end (E2E) automatic speech recognition (ASR) models excel at general transcription, they struggle to recognize rare or unseen named entities (e.g., contact names, locations), which are critical for downstream applications like…

计算与语言 · 计算机科学 2025-12-22 Ramaneswaran Selvakumar , Cindy Tseng , Eesung Kim , Vijendra Raj Apsingekar , Yun Tang

End-to-end (E2E) testing is essential for ensuring web application quality. However, manual test creation is time-consuming, and current test generation techniques produce incoherent tests. In this paper, we present AutoE2E, a novel…

软件工程 · 计算机科学 2025-01-08 Parsa Alian , Noor Nashid , Mobina Shahbandeh , Taha Shabani , Ali Mesbah

Speech emotion sensing in communication networks has a wide range of applications in real life. In these applications, voice data are transmitted from the user to the central server for storage, processing, and decision making. However,…

Speech is a common input method for mobile embedded devices, but cloud-based speech recognition systems pose privacy risks. Disentanglement-based encoders, designed to safeguard user privacy by filtering sensitive information from speech…

声音 · 计算机科学 2024-02-06 Dongqi Cai

Driverless vehicle as a taxi is gaining more attention due to its potential to enhance urban transportation efficiency. However, both unforeseen incidents led by unsupervised physical users' driverless taxi (DT) rides and personalized needs…

密码学与安全 · 计算机科学 2024-07-23 Yanwei Gong , Xiaolin Chang , Jelena Mišić , Vojislav B. Mišić