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In diesem Kurs gibt es 6 Module
This is part of our specialization on Making Decision in Time. For this second course we start with a landmark paper from Chernoff and build new insights into the ideas that his paper sparked. The ending point should bring new code and new algorithm insights into perspective, and use, by many computer and data scientists.
We extend Wald's ideas for sequential hypothesis testing to a new -- and closely related -- problem. In this second course we evaluate how best to choose from a set of hypothesis for sequentially arriving data. This has many modern applications, for example how best to set a price for a new product, what is the best therapy for a patient, how to determine the rare events in a stream of visual images and many many more. We begin by examining a type of visual search for the 'odd one out' and then build from that first week.
Das ist alles enthalten
3 Videos1 Lektüre2 Aufgaben
Infos zu Modulinhalt anzeigen
3 Videos•Insgesamt 36 Minuten
Given a visual grid of pictures: can you find the odd one out?•12 Minuten
Rationalizing how odd-one-out is determined by Chernoff's ideas•9 Minuten
The ABC of Chernoff's 1959 paper•15 Minuten
1 Lektüre•Insgesamt 10 Minuten
Searching Visually•10 Minuten
2 Aufgaben•Insgesamt 210 Minuten
How well do you understand Chernoff's method?•30 Minuten
Quiz 1•180 Minuten
Hierarchical Searching for Alternative Hypothesis
Modul 2•4 Stunden abzuschließen
Moduldetails
Searching within an ordered hierarchical setting can improve the search. But, it is not immediately obvious how to setup the data structure to support this type of search. In this part of the course we explore how to define a biased walk, based on information, to quickly find an 'odd one out'. From this concept of walking along a tree structure, we then move into thinking about how to best setup that tree structure.
Das ist alles enthalten
3 Videos1 Lektüre2 Aufgaben
Infos zu Modulinhalt anzeigen
3 Videos•Insgesamt 30 Minuten
Looking for rare images in large image libraries at scale•7 Minuten
Creating a random walk that efficiently explores a binary tree•9 Minuten
Using MCMC to find an optimal (and explainable) tree•14 Minuten
1 Lektüre•Insgesamt 10 Minuten
Hierarchy can be good for you•10 Minuten
2 Aufgaben•Insgesamt 210 Minuten
What is a binary tree?•30 Minuten
Quiz 2•180 Minuten
Large Hypothesis and/or Action Spaces
Modul 3•4 Stunden abzuschließen
Moduldetails
Many real-world applications have extremely large action and/or hypothesis spaces. For the application of Chernoff's ideas there has to be a way to apply the algorithms quickly at scale. In this set of material we examine how approximations may work and how Chernoff's ideas have been extended to different types of problems.
Das ist alles enthalten
3 Videos1 Lektüre2 Aufgaben
Infos zu Modulinhalt anzeigen
3 Videos•Insgesamt 30 Minuten
A clinical dream: testing for cancer with a blood 'biopsy'•9 Minuten
Two stages of active hypothesis testing may be better than one•10 Minuten
Greedy approximate algorithm to handle a blood 'biopsy'•10 Minuten
1 Lektüre•Insgesamt 10 Minuten
Bringing a large set into focus•10 Minuten
2 Aufgaben•Insgesamt 210 Minuten
Can you define Greedy?•30 Minuten
Quiz 3•180 Minuten
Sequential Hypothesis for Biology and Medicine
Modul 4•4 Stunden abzuschließen
Moduldetails
The ideas that we have been exploring can also be applied to data slices collected at disparate windows in time, can be applied to improving MRI scans and can be applied to molecular protein design. These applications all share the concept of using sequential hypothesis testing to improve understanding. In addition, all three of these ideas are under active code development.
Das ist alles enthalten
3 Videos1 Lektüre2 Aufgaben
Infos zu Modulinhalt anzeigen
3 Videos•Insgesamt 27 Minuten
Can you connect that health data point to a story?•11 Minuten
How to make MRI scans be faster•8 Minuten
Directed Evolution can be Hypothesis Driven•8 Minuten
1 Lektüre•Insgesamt 10 Minuten
Sharpen your insights•10 Minuten
2 Aufgaben•Insgesamt 210 Minuten
New Quiz•30 Minuten
Quiz 4•180 Minuten
Putting it together: testing on visual images
Modul 5•4 Stunden abzuschließen
Moduldetails
In our fifth week we explore how to move beyond the 'odd one out' and into multiple hypothesis testing for streams of data. This could be for setting a dosage level on a medication or on how to identify objects in a set of images.
Das ist alles enthalten
5 Videos1 Lektüre2 Aufgaben
Infos zu Modulinhalt anzeigen
5 Videos•Insgesamt 50 Minuten
Covid as Example•9 Minuten
Adaptive Hypothesis Testing: Part One•7 Minuten
Adaptive Hypothesis Testing: Part Two•9 Minuten
Learn then Test: Part-one•14 Minuten
Learn then Test: Part-two•11 Minuten
1 Lektüre•Insgesamt 10 Minuten
Can you see the connections to our start?•10 Minuten
2 Aufgaben•Insgesamt 210 Minuten
Can you describe a graph for hypothesis testing?•30 Minuten
Quiz 5•180 Minuten
Untitled Module
Modul 6•3 Stunden abzuschließen
Moduldetails
Das ist alles enthalten
1 Aufgabe
Infos zu Modulinhalt anzeigen
1 Aufgabe•Insgesamt 180 Minuten
Final Exam•180 Minuten
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