John Hopkins Professor Jeffrey Leek summarized six types of data analyses: Descriptive – descriptive summary of the data, e.g., the mean, standard deviation; Exploratory – “an approach to analyzing data sets to find previously unknown relationships”; Inferential – testing theories…
Response to [Gesture spotting ...] by Ward et al.
The basic idea of this paper is using two different types of sensors yields a better recognition by examining where they agree and disagree with a input data point. In other words, the combined likelihood that they are giving false…
Starting to build your first app on Sony Smartwatch (not emulator)
Short version [A HelloWatch project]. Go for it. Long version Some Basic Setup If you haven’t, go download the Sony Add-on SDK => Follow these steps. Locate the SDK on your computer. Find the location of Android SDK manager. In the same directory…
Notes on AdaBoost
AdaBoost, short for Adaptive Boost, is a type of meta machine learning algorithm that iteratively train and improve models based upon the errors/contributions made by candidates of models. The algorithm was proposed by Yoav Freund and Robert Shapire. This is…
Enabling touch on the Sony Smartwatch (Emulator version)
Enabling touch on the smartwatch is no difference than doing that for an Android device. Conceptually, the watch (the SmallAppWindow object) is just a placeholder for an Android View/Layout/Button/etc. To enable touch you just need to set an OnTouchListener to…
Notes of [Maths for CS] by Lehman & Leighton – Induction
Induction To proof P(n) is true for all n ∈ N, we prove the following: P(0) is true; P(n) implies P(n+1) for all n ∈ N. Write-up for induction Say you are going to use induction Clarify what P(n) is Prove base…
6 steps to start developing on Sony Smartwatch Emulator
1. Make sure you set up Android development environment Here. 2. Download the Sony Add-on SDK and create an Android virtual device. Follow these steps. 3. Locate the SDK on your computer. Find the location of Android SDK manager. In…
Notes of [Maths for CS] by Lehman & Leighton – Proof
Proposition A proposition is a statement that can be proved as either true or false. There are several kinds of propositions. A predicate is a proposition whose truthfulness depends on some variables; An implication is a proposition comprised of two…
The Gap We Can Never Fill
How much do you know about your grandparents? My grandfather passed away 10 years ago. My memory about him faded every day. He didn’t have a website, a Facebook page, a Renren, or a Weibo. After his death I spent…
Instance-Based Learning
The basic concept: nearest neighbor A number of machine learning algorithms are based on that the class value of an instance is a function of that instance. The fundamental difference of instance-base learning is that it believes the class value…
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