Unable to understand this expression
I am unable to understand the above expression from the 3rd line onwards. Why is P(A|q1...qt-1)P(q1..q-1) = P(A|qt-1)P(q1..q-1)
I am not clear of the subsequent line as well
bayes-theorem
add a comment |
I am unable to understand the above expression from the 3rd line onwards. Why is P(A|q1...qt-1)P(q1..q-1) = P(A|qt-1)P(q1..q-1)
I am not clear of the subsequent line as well
bayes-theorem
Is this from a Markov process?
– gd1035
Nov 29 at 21:59
I think the third line is a typo. I think it shoulbe $P(A|q_{t-1})P(q_1, ... , q_{t-2}) = P(A|q_{t-1})P(q_{t-1}|q_{t-2})P(q_1,....,q_{t-e}) = ..... P(A|q_{t-1})P(q_{t-1}|q_{t-2})....P(q_2|q_1)P(q_1)$.
– fleablood
Nov 29 at 22:02
yes its about Markov process
– user1436508
Nov 29 at 22:15
add a comment |
I am unable to understand the above expression from the 3rd line onwards. Why is P(A|q1...qt-1)P(q1..q-1) = P(A|qt-1)P(q1..q-1)
I am not clear of the subsequent line as well
bayes-theorem
I am unable to understand the above expression from the 3rd line onwards. Why is P(A|q1...qt-1)P(q1..q-1) = P(A|qt-1)P(q1..q-1)
I am not clear of the subsequent line as well
bayes-theorem
bayes-theorem
asked Nov 29 at 21:54
user1436508
1538
1538
Is this from a Markov process?
– gd1035
Nov 29 at 21:59
I think the third line is a typo. I think it shoulbe $P(A|q_{t-1})P(q_1, ... , q_{t-2}) = P(A|q_{t-1})P(q_{t-1}|q_{t-2})P(q_1,....,q_{t-e}) = ..... P(A|q_{t-1})P(q_{t-1}|q_{t-2})....P(q_2|q_1)P(q_1)$.
– fleablood
Nov 29 at 22:02
yes its about Markov process
– user1436508
Nov 29 at 22:15
add a comment |
Is this from a Markov process?
– gd1035
Nov 29 at 21:59
I think the third line is a typo. I think it shoulbe $P(A|q_{t-1})P(q_1, ... , q_{t-2}) = P(A|q_{t-1})P(q_{t-1}|q_{t-2})P(q_1,....,q_{t-e}) = ..... P(A|q_{t-1})P(q_{t-1}|q_{t-2})....P(q_2|q_1)P(q_1)$.
– fleablood
Nov 29 at 22:02
yes its about Markov process
– user1436508
Nov 29 at 22:15
Is this from a Markov process?
– gd1035
Nov 29 at 21:59
Is this from a Markov process?
– gd1035
Nov 29 at 21:59
I think the third line is a typo. I think it shoulbe $P(A|q_{t-1})P(q_1, ... , q_{t-2}) = P(A|q_{t-1})P(q_{t-1}|q_{t-2})P(q_1,....,q_{t-e}) = ..... P(A|q_{t-1})P(q_{t-1}|q_{t-2})....P(q_2|q_1)P(q_1)$.
– fleablood
Nov 29 at 22:02
I think the third line is a typo. I think it shoulbe $P(A|q_{t-1})P(q_1, ... , q_{t-2}) = P(A|q_{t-1})P(q_{t-1}|q_{t-2})P(q_1,....,q_{t-e}) = ..... P(A|q_{t-1})P(q_{t-1}|q_{t-2})....P(q_2|q_1)P(q_1)$.
– fleablood
Nov 29 at 22:02
yes its about Markov process
– user1436508
Nov 29 at 22:15
yes its about Markov process
– user1436508
Nov 29 at 22:15
add a comment |
1 Answer
1
active
oldest
votes
This follows from the Markov property (or the memoryless property) that the conditional probability of a future event only depends on the current state.
See link for more information about this property.
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "69"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3019285%2funable-to-understand-this-expression%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
This follows from the Markov property (or the memoryless property) that the conditional probability of a future event only depends on the current state.
See link for more information about this property.
add a comment |
This follows from the Markov property (or the memoryless property) that the conditional probability of a future event only depends on the current state.
See link for more information about this property.
add a comment |
This follows from the Markov property (or the memoryless property) that the conditional probability of a future event only depends on the current state.
See link for more information about this property.
This follows from the Markov property (or the memoryless property) that the conditional probability of a future event only depends on the current state.
See link for more information about this property.
answered Nov 29 at 23:12
gd1035
459210
459210
add a comment |
add a comment |
Thanks for contributing an answer to Mathematics Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3019285%2funable-to-understand-this-expression%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Is this from a Markov process?
– gd1035
Nov 29 at 21:59
I think the third line is a typo. I think it shoulbe $P(A|q_{t-1})P(q_1, ... , q_{t-2}) = P(A|q_{t-1})P(q_{t-1}|q_{t-2})P(q_1,....,q_{t-e}) = ..... P(A|q_{t-1})P(q_{t-1}|q_{t-2})....P(q_2|q_1)P(q_1)$.
– fleablood
Nov 29 at 22:02
yes its about Markov process
– user1436508
Nov 29 at 22:15