Remark on Algorithm 539

Remark on Hsu-Du New Algorithm for the LCS Problem

One of the time bounds claimed by Hsu and Du for the modification of Hirschberg's strategy set up by them is not correct. This is of some consequence, notably, it voids the claim, made else~ where in the same paper, that the proposed algorithm performs better than the Hunt-Szymanski's strategy in cases of sparse matches. In fact it is pointed out here tbat just the opposite is true. In addition...

A remark about orthogonal matching pursuit algorithm

In this note, we investigate the theoretical properties of Orthogonal Matching Pursuit (OMP), a class of decoder to recover sparse signal in compressed sensing. In particular, we show that the OMP decoder can give (p, q) instance optimality for a large class of encoders with 1 ≤ p ≤ q ≤ 2 and (p, q) 6= (2, 2). We also show that, if the encoding matrix is drawn from an appropriate distribution, ...

Dev128116 530..539

In eukaryotes, aberrant expression of transposable elements (TEs) is detrimental to the host genome. Piwi-interacting RNAs (piRNAs) of ∼23 to 30 nucleotides bound to PIWI clade Argonaute proteins silence transposons in a manner that is strictly dependent on their sequence complementarity. Hence, a key goal in understanding piRNA pathways is to determine mechanisms that modulate piRNA sequences....

Translation Series No. 539

AN-539 App Note

INTRODUCTION This application note describes a systematic approach to calculating the overall error in an instrumentation amplifier (in amp) application. We will begin by describing the primary sources of error (e.g., offset voltage, CMRR, etc.) in an in amp. Then, using data sheet specifications and practical examples, we will compare the accuracy of various in amp solutions (e.g., discrete vs...