Accuracy and precision

Recommender Systems are based on well-structured and incremental algorithms that have different strengths and weaknesses \cite{ricci2011introduction}. In general, the main existing RSs are concerned with improving accuracy with the premise of being useful to users. In this context, there is an increasing number of custom techniques that analyze the profile of the target user in order to better satisfy them \cite{bobadilla2013recommender}. In this sense, we conducted a broad study of the several metrics

Chemistry Practical Investigation-Volumetric Analysis Discussion: Based on the data obtained, the precision of obtaining the data is high. This is because the data shows closeness between one another. It shows the reproducibility of a set of measured quantity. The data obtained showed three concordant titres where the titre volumes differ by less than 0.1mL from the highest to the lowest. The variability of a measurement cannot be determined from a single measurement, therefore multiple measurements

Lab Report Experiment 1 & 2 CHM-101 Amele Takpara Partner: Jessamyn Dupree ------------------------------------------------- Experiment 1 ------------------------------------------------- (Pre-Lab Questions) 1. In the design of a Bunsen burner, explain the purpose of a. the gas control valve The gas control valve regulates the rate at which methane enters the burner. b. and the air vents. The air vents control the rate at which air enters the burner 2. Why is a luminous

Discussion: The volume of water can be measured in several different ways. This experiment uses pipets, burets, and a calculation to compare and analyze the accuracy of each measurement. When measuring water volume with a buret, first fill the clean buret with water and record the initial reading. Then mass an empty beaker and record this mass. Next open the stopcock, letting some volume of water empty into the receiving beaker. Close the stopcock, take the final reading on the buret, and record

Assignment 1: key issues in research- Albert Lutada Task 1-Describe qualitative and quantitative research Qualitative research is a type of research that involves word rather than numbers. This involves looking at feelings, opinions and emotions. Qualitative research is concerned with trying to explain why rather than what or how many. Quantitative research is a type of research that involves the use of numerical data and is used to obtain information. This involves testing a hypothesis or trying

EC used also in used in quantification analysis of risperidone [20-21].However, it is used in pharmacokinetic studies is restricted due to long time for stabilizing the detector, interference of endogenous compound as well as the limitation of mobile phase. Methods using Mass spectrometry detector combined with Liquid chromatography(LC–MS and LC–MS-MS) have been developed. Among the currently available bioanalytical techniques, ultra-performance liquid chromatography (UPLC) has gained a considerable

a novel methodology to classify the tweets and the complete opinion mining system is explained on the basis of survey and analysis. A flowchart has been proposed in which the overall picture of classification of twitter data has been proposed and accuracy of the evaluation strategies by various supervised learning algorithms has been evaluated. Review data is collected for various product domains from micro blogging sites like twitter, face book. Keywords Opinions, Web mining, Sentiment Analysis,

consistent for the auditory stimulus. Figure 4 simply displays both averages side by side with a range (min, max) spearing through it, from this the precision of the graph can be commented on. There is high scatter within the data, from this it can be concluded that precision is

Q1 a) OXFORD ADVANCED LEARNER’S ENGLISH-CHINESE DICTIONARY is what I use for this assignment. Due to it is the largest, most authoritative English-Chinese dictionary in print. It contains over 185000 words phrases and meaning, including the latest vocabulary form different fields. b) In the dictionary, a headword, spelling of the headword and definition of the headword are given in English, follow by explanations for this headword in Chinese. The way to check whether you know this vocabulary

Introduction: In this lab, we used different types of pipettes to measure the volumes of water. The accuracy of pipetting could be determined by the weight of liquid we dispensed and used it to compare with expected weight. The purpose of this lab was to use pipets correctly, also increased the precision and accuracy for the lab demand. Methods and Materials: We used both 5mL and 10 mL pipettes, a pipette bulb, a 50mL dry beaker, water and scales. We did the experiment for three parts, we used