The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Selecting the right web links for a website is important because appropriate links not only can provide high attractiveness but can also increase the website's revenue. In this work, we first show that web links have an intrinsic multi-level feedback structure. For example, consider a 2-level feedback web link: the 1st level feedback provides the Click-Through Rate (CTR) and the 2nd level feedback...
Least-squares design of infinite impulse response all-pass filters can be simplified by solving a system of linear equations. The set of linear equations associated matrix is further formulated as a Toeplitz-plus-Hankel form such that an efficient and robust Cholesky decomposition or Levinson technique can solve the all-pass filter coefficients. This paper proposes closed-form expressions for the...
An adaptive slicing algorithm based on stereo lithography (STL) model was proposed. The main principle is, firstly, reestablishing the topological information of STL model. Then the intersection points were calculated and sequenced by using intersection points' tracking method and marking method. The slicing thickness was automatically controlled according to the area deviation ratio between two adjacent...
This paper proposes a neural-based learning approach for the design of digital differentiator and Hilbert transformer. The error differences in the frequency domain are formulated as an eigenproblem such that the optimal filter is derived by solving a single eigenvector corresponding to the smallest eigenvalue of an appropriate real, symmetric, and positive-definite matrix. In this paper, the minor...
This paper extends the neural network based algorithm to the equiripple design of FIR digital differentiators in the weighted least-squares (WLS) sense. The error representation reformulated by the Lyapunov error function reflects the difference between the desired amplitude response and the designed response. The optimal filter coefficients are obtained when the neural network is convergent. Furthermore,...
The algebraic code excited linear prediction (ACELP) structure has been adopted by many speech coding standards because of its high speech quality. With analysis-by-synthesis optimizations, the ACELP speech coder can provide an efficient coding technique for the linear predicted residuals. This paper introduces the unified pulse-replacement (UPR) algorithm again and evaluates its performance for the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.