This paper discusses the mathematical framework of the addition, introduces a new signed-digit format for representing decimal numbers and presents an efficient architectural implementation. One critical building block for some complex decimal operations is the decimal carry-free adder.
Bcd to xs3 code converter smart software#
Although computers are still carrying out decimal calculation using software libraries and binary floating-point numbers, it is likely that in the near future, all processors will be equipped with units performing decimal operations directly on decimal operands. Recently, decimal arithmetic has become attractive in the financial and commercial world including banking, tax calculation, currency conversion, insurance and accounting. Nikmehr, Hooman Phillips, Braden Lim, Cheng-Chew The final experiments show that with a reasonable memory space growth, our FBC speeds up more than 80% averagely without any search accuracy loss when comparing to the state-of-art Manhattan hashing methods.
As a result, the decimal arithmetic used in previous Manhattan hashing can be replaced by more efficient XOR operator. To solve this problem, we present an intuitive hash scheme which uses Flat Binary Code (FBC) to encode the data points. However, due to using decimal arithmetic operations instead of bit operations, Manhattan hashing becomes a more time-consuming process, which significantly decreases the whole search efficiency. Benefitting from better neighborhood structure preservation, Manhattan hashing methods outperform earlier methods in search effectiveness. Based on the difference of distance measurement, hash methods are generally classified into two categories: Hamming hashing and Manhattan hashing. Hash coding is a widely used technique in approximate nearest neighbor (ANN) search, especially in document search and multimedia (such as image and video) retrieval. Kong, Yan Wu, Fuzhang Gao, Lifa Wu, Yanjun By undertaking a detailed numerical simulation the influence of these key parameters on the metrics that determine the quality of switching is thoroughly investigated.įBC: a flat binary code scheme for fast Manhattan hash retrieval
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The model accounts for the SOA small signal gain, line-width enhancement factor and carrier lifetime, the switching pulse energy and width, and the Sagnac loop asymmetry. The operations of the circuit are studied theoretically and analyzed through numerical simulations. In many personal computers, the basic input/output system (BIOS) keep the date and time in BCD format. BCD is common in computer systems that display numeric values, especially in those consisting solely of digital logic with no microprocessor. The paper describes all-optical conversion scheme using a set of all-optical switches. GRAPHS INDUCED by GRAY CODES 1.All-optical 4-bit binary to binary coded decimal converter with the help of semiconductor optical amplifier-assisted Sagnac switchīhattachryya, Arunava Kumar Gayen, Dilip Chattopadhyay, TanayĪll-optical 4-bit binary to binary coded decimal (BCD) converter has been proposed and described, with the help of semiconductor optical amplifier (SOA)-assisted Sagnac interferometric switches in this manuscript.Algorithms for Generating Binary Reflected Gray Code Sequence: Time Efficient Approaches.Loopless Gray Code Enumeration and the Tower of Bucharest.NOTE on GRAY CODES for PERMUTATION LISTS Seymour.A New Approach to the Snake-In-The-Box Problem.
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