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Use of public transportation is on a rise, enabling greener cities and improvement of the quality of life of the city residents. The challenge for the public transportation system is that its demands are non linear and the passengers' experience depends on many human factors. UnCrowdTPG is a mobile service and a research platform that has been developed for understanding the mobility patterns of the...
Cross validation method has been widely used for estimation of perfomance of classifiers and statistical method. However, compared with other resampling methods, cross-validation has not yet theoretically investigated since the sampling scheme is based not only on stochasticity but also on set-based processing. This paper proposes a new framework for evaluation of cross-validation methods based on...
Spectrograms provide an effective way for time-frequency representation (TFR). Among these, short-time Fourier transform (STFT) based spectrograms are extensively used for various applications. However, STFT spectrogram and its revised versions suffer from two main issues: (1) there is a trade-off between time resolution and frequency resolution, and (2) almost all existing TFR methods, including...
This paper introduces a combined comparison and regression method to quantify a credible estimation of the energy saving effect produced by Conservation Voltage Reduction (CVR). It is presented as a step by step tutorial on how to assess CVR effects with existing resources and tools at every control room in electrical distribution utilities. The method was tested in a distribution network in Canary...
Experienced professionals are capable of spotting an impossible estimate at a glance. This ability, which some will call "expert knowledge" is acquired over years of practice and observation of what works and does not work. Expert knowledge is mostly tacit and in consequence difficult to pass on. Fermi questions, named after Enrico Fermi - a Nobel Laureate in Physics, seek to produce a quick,...
Many software are developed from Open Source. There is a crucial need to estimate the efforts spent in a project development based on Open Source. These estimates give room for comparison between the development model based on Open Source and others and lead to a decision making concerning a project, if it is judged worthy to be continued, discarded or combined with traditional approaches. In the...
Defocus map estimation plays an important role in computer vision and computer graphics applications. For many defocus map estimation methods from a single image, the edge detection is very important for depth map estimation. In this paper, we show a novel method for defocus map estimation from a single image, and give a theoretical model of re-blurred. The method is based on the difference value...
Because of the accident of falling out of the bed of inpatients / recipients of care occurs constantly in nursing /care facilities, the technique of roll-over detection / posture state estimation are required. In this paper, we developed the detection technique of roll-over with the thermographic watching system with the respect of a person's privacy The detection of roll-over is the method which...
Height data is very important not only as an indicator of growth in low birth weight infants, newborn, infants (infants below), but also for early detection of disease such as dwarfism. In this paper, we consider height estimation by image processing that targets lying infants for the purpose of reducing the burden of infants, doctors and parents. Furthermore, we compare results of using a single...
Bilateral Filter has properties of high noise removal. However, the estimating of suitable parameter by using an input image is required to obtain a fine denoising image. A method of parameter estimation using distribution distance has proposed. The method is optimal parameter estimation of bilateral filter based on distribution distance and assumption noise distribution that is estimated by differences...
This paper presents popular music estimation based on a topic model using time information and audio features. The proposed method calculates latent topic distribution using Latent Dirichlet Allocation to obtain more accurate music features. In this approach, we also use release date information of each music as time information for concerning the relationship between music trends and each age. Then,...
In this paper the authors evaluate in context of numerical calculations accuracy classical integer order and direct non-integer based order numerical algorithms of non-integer orders derivatives and integrals computations. Classical integer order based algorithm involves integer and fractional order differentiation and integration operators concatenation to obtain non-integer order. Riemann-Liouville...
A deoxyribonucleic acid (DNA) sequence can be represented as a sequence with 4 characters. If a particular property of the DNA is studied, for example, GC content, then it is possible to consider a binary sequence. In many cases, if the probabilistic properties of a segment differ from the neighbouring ones, this means that the segment can play a structural role. Therefore, DNA segmentation is given...
This paper focuses on the low speed performance of extended electromotive force (EMF) based position-sensorless speed control of surface permanent magnet synchronous motors (SPMSMs) in real-time. It is the first time Morimoto's extended EMF approach is applied to SPMSM and its low speed performance is evaluated by real-time experiments. The results obtained from the designed position-sensorless drive...
In contrast with UKF, the standard CKF can solve high-dimensional nonlinear filter problems. However, when the nonlinear systematic dimension increases, the accuracy of CKF will decline and the computational cost will increase rapidlly. Two-Stage Kalman filter can solve this problem, but it only applies to linear systems. This paper proposes a two-stage Cubature Kalman filter (TSCKF) which can solve...
Sampling-based approximate query processing method provides the way, in which the users can save their time and resources for 'Big Data' analytical applications, if the estimated results can satisfy the accuracy expectation earlier before a long wait for the final accurate results. Online aggregation (OLA) is such an attractive technology to respond aggregation queries by calculating approximate results...
This paper introduces a blur kernel refinement method that produces a more accurate kernel estimation based on the best light streak that is selected from a motion blurred image. The best image patch that contains a clear light streak is firstly selected and the blur kernel is estimated from the patch by solving an optimization problem. Then, a kernel refinement method based on region growing is proposed...
This paper proposes model predictive control (MPC)-based cruise control method. A two-wheeled vehicle is a nonlinear system with nonholonomic constraints. Therefore, a large number of computations is required for optimization-based control. Most conventional studies have assumed that the leader vehicle runs along a predefined trajectory.
This paper highlights the results of a survival survey and life span study of 10 million web pages, mainly in Japanese, that were collected for NTCIR-3 (web task) in 2001. To calculate web page life span, metadata was collected from Internet Archive's Wayback Machine via Memento. The life span study showed that the average life span of a web page is 1,132.1 days.
Price Elasticity estimates of various consumers of electricity have been presented considering the aggregate price of electricity faced by Distribution companies of Gujarat state. The results highlight the need of category specific rational and optimum pricing policy for the load profile management activities in the backdrop of Demand Side Management.
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