Philip Feng Ph.DAMD Falling Analysis — 15 times that prices fell beyond 5% from 2020–10–19 to 2022–02–16.# Falling largely: close lower than yesterday-close < -5% Totally, there are 15 times that prices fell beyond 5% from 2020–10–19 to…Feb 17, 2022Feb 17, 2022
Philip Feng Ph.DStock Analysis 2022–02–11# VTI On 2022–02–11 , the stock VTI close at price $ 222.94, compared to the close-price yesterday, it changed -1.94 %. - Price trend…Feb 14, 2022Feb 14, 2022
Philip Feng Ph.DWriting Styles As an Academic Paper Review Or an Industrial Code ReviewerSometimes I serve as a paper review for some academic publishers, journals, conferences, etc. In the meantime, sometimes I serve as a code…Jul 24, 2020Jul 24, 2020
Philip Feng Ph.DPrinciples of Cache Design in Web ApplicationA key-value cache is designed to reduce latency for accessing active data. Cache Pattern, placement, replacement, disadvantage(s) of…Jan 6, 20201Jan 6, 20201
Philip Feng Ph.DTime-Series Sensor Fusion Model for Recognition of Activities of Daily LivingThis article proposes a Time-Series Sensor Fusion Model [1] that serves as an underlying platform for a use case — Recognition of…Oct 25, 2019Oct 25, 2019
Philip Feng Ph.DHybrid Mobile App Dev: Comparison among Cordova, PhoneGap, Intel XDK, Ionic, React NativeMany wrappers are based on Apache Cordova. I began to use some frameworks since 2014. Here are some of my brief opinions, FYI. PhoneGap is…Oct 7, 2019Oct 7, 2019
Philip Feng Ph.DQuick Overview of Indoor LocalizationThe localization requirements in different building layout are significantly different. The suitable techniques vary accordingly.Sep 9, 2019Sep 9, 2019
Philip Feng Ph.DModern Open Source Messaging: Apache Kafka, RabbitMQ, NATS, Pulsar and NSQ# NATS: Ruby then Go https://nats.io/ NATS was originally built with Ruby and achieved a respectable 150k messages per second. The team…Dec 12, 201812Dec 12, 201812
