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How do you hide contacts on the signal app? 

Information hiding
Robustness (computer science)
Multi-mode optical fiber
Steganography
Digital watermarking

Answers from top 9 papers

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Papers (9)Insight
Journal Article•DOI
Real-time, speech-in-speech hiding scheme based on least significant bit substitution and adaptive key
Dora M. Ballesteros L, Dora M. Ballesteros L, Juan M. Moreno A 
01 May 2013-Computers & Electrical Engineering
23 Citations
In this paper, we propose a new scheme of data hiding which takes advantage of the masking property of the Human Auditory System (HAS) to hide a secret (speech) signal into a host (speech) signal.
Journal Article•DOI
Watermarking relying on cover signal content to hide synchronization marks
Damien Delannay, Benoît Macq 
01 Nov 2006-IEEE Transactions on Information Forensics and Security
13 Citations
We then propose a scheme to hide synchronization marks through the modulation of the embedded signal by a content-based pseudo-random signal.
Journal Article•DOI
Effective Electrocardiogram Steganography Based on Coefficient Alignment
Ching-Yu Yang, Wen-Fong Wang 
01 Mar 2016-Journal of Medical Systems
33 Citations
The reversible data hiding method can not only hide secret messages but also completely restore the original ECG signal after bit extraction.
Report•DOI
Piecewise Linear Noise Modulation (PLNM)
Lisa M. Marvel, Malcolm S. Taylor, Charles G. Boncelet 
01 Apr 2001
The technique can be used to hide information in a signal that is then added to a carrier for a variety of applications.
Journal Article•DOI
Dispersion Deployment and Compensation for Optical Steganography Based on Noise
Ben Wu, Matthew P. Chang, Bhavin J. Shastri, Phillip Y. Ma, Paul R. Prucnal 
15 Feb 2016-IEEE Photonics Technology Letters
19 Citations
On the other hand, the dispersion effect in the stealth channel can be employed to hide the stealth signal in the time domain.
Journal Article•DOI
Background correction in separation techniques hyphenated to high-resolution mass spectrometry - Thorough correction with mass spectrometry scans recorded as profile spectra.
Guillaume L. Erny, Tanize Acunha, Carolina Simó, Alejandro Cifuentes, Arminda Alves 
07 Apr 2017-Journal of Chromatography A
9 Citations
Such unnecessary contribution to the overall signal can hide important features as well as decrease the accuracy of the centroid determination, especially with minor features.
Open access•Journal Article•DOI
Wavelet based ECG Steganography for Protecting Patient Confidential Information
M. Sucharitha, K. Parimala Geetha 
13 Sep 2015-Indian journal of science and technology
8 Citations
The proposed method allows ECG signal to hide its corresponding patient confidential data and other physiological information thus guaranteeing the integration between ECG and the rest.
Journal Article•DOI
Intentions to hide and unfriend Facebook connections based on perceptions of sender attractiveness and status updates
Jorge E. Peña, Nicholas Brody 
01 Feb 2014-Computers in Human Behavior
70 Citations
Intention to hide was higher than intention to unfriend contacts, implying that unfriending is harsher.
Open access•Posted Content•DOI
Public attitudes towards COVID-19 contact tracing apps: A UK-based focus group study
Simon N. Williams, Christopher J. Armitage, Tova Tampe, Kimberly A. Dienes 
18 May 2020-medRxiv
67 Citations
(2) Communications should emphasise that the app cannot enable the user to identify which of their contacts has reported COVID-19 symptoms or tested positive.

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