The Chase is a fixpoint algorithm enforcing satisfaction of data dependencies (also called constraints) in databases. It has been proposed more than thirty years ago [2,18] and has seen a revival of interest in recent years in both database theory and practical applications. Indeed, the availability of data coming from different sources easily results in inconsistent or incomplete data (i.e., d...

This study proposes a progressive algebraic Chase decoding (PACD) algorithm for Reed–Solomon (RS) codes. On the basis of the received information, 2 (η > 0) interpolation test-vectors are constructed for the interpolation-based algebraic Chase decoding. A test-vector reliability function is defined to assess their potential for yielding the intended message. The algebraic Chase decoding will th...

Soybean (Glycine max [L.] Merr.) suspension cultures grown under photoautotrophic and photomixotrophic (1% sucrose) culture conditions were used in 14CO2 pulse-chase experiments to follow cell-wall polysaccharide and starch biosynthesis and turnover. Following a 30-min pulse with 14CO2, about one-fourth of the 14C of the photoautotrophic cells was incorporated into the cell wall; this increased...

The overall number of nearest neighbors in bounded distance decoding (BDD) algorithms is given by No;e = No + NBDD; where NBDD denotes the number of additional, noncodeword, neighbors that are generated during the (suboptimal) decoding process. We identify and enumerate the nearest neighbors associated with the original Generalized Minimum Distance (GMD) and Chase decoding algorithms. After car...

This paper presents the throughput performance employing hybrid automatic repeat request packet combining, i.e., Chase combining and incremental redundancy, in forward-link orthogonal frequency and code division multiplexing (OFCDM) broadband packet wireless access achieving a peak throughput above 100 Mbps. Simulation results elucidate that the achievable throughput at the average received sig...

The objective of this study was to determine the contribution of myocardial triglycerides to overall ATP production in isolated working rat hearts. Endogenous lipid pools were initially prelabeled (pulsed) by perfusing hearts for 60 min with Krebs-Henseleit buffer containing 1.2 mM [1-14C]palmitate. During a subsequent 60-min period (chase), hearts were perfused with either no fat, low fat (0.4...

The implication problem for the class of embedded dependencies is undecidable. However, this does not imply lackness of a proof procedure as exemplified by the chase algorithm. In this paper we present a complete axiomatization of embedded dependencies that is based on the chase and uses inclusion dependencies and implicit existential quantification in the intermediate steps of deductions.

In multiple-input multiple-output wireless communication system, the order of symbol detection in Chase framework is critical because of error propagation. In order to improve chase detector’s performance, sorted chase detection algortihm to reduce error propagation is proposed here. By setting parameters at different values, trade-off between performance and complexity can be obtained properly...