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In this paper, the development of a speech processing pipeline on smartphones for hearing aid devices (HADs) is presented. This pipeline is used for noise suppression and speech enhancement (SE) to improve speech quality and intelligibility. The proposed method is implemented to run in real-time on Android smartphones. The results of the testing conducted indicate that the proposed method suppresses...
In this paper, a novel dual-mode substrate integrated waveguide resonator which is a square SIW cavity perturbed by a rectangle metallic plane inserted into the middle of the substrate. With this type of dual-mode substrate integrated waveguide cavity, a novel fourth-order bandpass filter is presented. The filter was fabricated and measured with high selectivity and compact size, and the size reduction...
In this paper, we consider a scenario where a user queries a user profile database, maintained by a social networking service provider, to find out some users whose profiles are similar to the profile specified by the querying user. A typical example of this application is online dating. Most recently, an online data site, Ashley Madison, was hacked, which results in disclosure of a large number of...
In this paper we propose an efficient single microphone (single channel) speech enhancement (SE) method for Quasi-Stationary noise environment. The proposed method estimates the noise by exploiting its quasi-periodic nature, followed by a statistical model based method to enhance the speech. An efficient reduced-order linear predictive error filtering is introduced to increase the signal to noise...
Most single channel speech enhancement approaches introduce distortion in the speech and create musical noise. In this paper, we propose a novel data-driven two-stage speech enhancement approach based on cepstral smoothing method. By utilizing the cepstral smoothing method and modified recursive a priori and a posteriori signal-to-noise ratio estimation, the main speech information is preserved while...
Many techniques for privacy-preserving data mining (PPDM) have been investigated over the past decade. Such techniques, however, usually incur heavy computational and communication cost on the participating parties and thus entities with limited resources may have to refrain from participating in the PPDM process. To address this issue, one promising solution is to outsource the tasks to the cloud...
Outsourcing data and computation to the cloud is increasingly common. However, the data to be outsourced is often privacy-sensitive (e.g., geospatial data, social network data, and Internet network traffic data) and thus it is typically outsourced after being properly encrypted. Graph is one of the most common ways to model and represent the data in many applications, including geospatial data in...
Private record linkage protocols allow multiple parties to exchange matching records, which refer to the same entities or have similar values, while keeping the non-matching ones secret. Conventional protocols are based on computationally expensive cryptographic primitives and therefore do not scale. To address these scalability issues, hybrid protocols have been recently proposed that combine differential...
Extracting useful knowledge from social network datasets is a challenging problem. To add to the difficulty of this problem, privacy concerns that exist for many social network datasets have restricted the ability to analyze these networks and consequently to maximize the knowledge that can be extracted from them. This paper addresses this issue by introducing the problem of data trustworthiness in...
Cognitive radio has been considered as the most possibly techniques to solve the problems of spectrum underutilization and the spectrum scarcity. To discover the spectrum utilization correctly and quickly, the primary signals are sensed and analyzed by the secondary system with no cooperation from primary system. When the primary system is a communication system, downlink and uplink of the primary...
Spectrum sensing is the first key functionality to realize Cognitive Radios which also meet harsh performance demands under various severe conditions, e.g. the reliability and sensitivity demands under the low sensing overhead constraint. Cooperative sensing exploiting SPRT is an efficient sensing method which can significantly decrease sensing delay and sensing overhead, thereby, has been extensively...
The purpose of this paper is to investigate the influence of pile-soil-structure interaction(PSSI)on vibration control of adjacent buildings with pile foundation. Firstly, assuming that the adjacent buildings are linked with the control actuator of ideal hydraulic servo-system, based on the Penzien model, the calculation model of adjacent structures with pile-foundation in consideration of PSSI is...
Cognitive radios are efficient techniques to improve the utilization of the spectrum. Spectrum sensing is the key functionality to improve the spectrum efficiency and avoid harmful interference to the licensed users. By exploiting the spatial diversity of the different secondary users, cooperative sensing can achieve better sensing performance compared to the local sensing, thereby, receiving much...
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