Add needed param to warning for L2 in SDCA - #597

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justinormont merged 6 commits into
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justinormont:sdca-l2-fix
Jul 30, 2018
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Add needed param to warning for L2 in SDCA#597
justinormont merged 6 commits into
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justinormont:sdca-l2-fix

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Closes#596

ch.Warning("The specified l2Const = {0} is too small. SDCA optimizes the dual objective function. " +
"The dual formulation is only valid with a positive L2 regularization. Also, an l2Const less than {1} " +
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const);
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const, L2LowerBound);

@TomFinleyTomFinleyJul 29, 2018

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l2Const [](start = 83, length = 7)

Hi @justinormont thanks for looking at this. Another problem with this message, replace these with nameof(L2Const), here, and everywhere in this message that it is used, in the format args. It might go easier if you used the $ string interpolation. #resolved

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@dotnet-bot test OSX10.13 Debug

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@TomFinley : Perhaps there's a StyleCop (ref: #553) rule we can enable, which can catch future issues like this mismatched (param count) vs. (count of items in the String.Format-style).

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Such a code analysis rule would have to be aware of ch.Warning, ch.Except, and all such other places -- certainly StyleCop is unaware of this. One possible remediation would be to drop all usage of such things, and insist that if people want formatted args, we simply do $ style string interpolation, which just simply works.


In reply to: 408797756 [](ancestors = 408797756)

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 env.CheckUserArg(L2Const == null || L2Const >= 0, nameof(L2Const), "L2 constant must be non-negative.");

If you wanted to improve these messages while you're at it so they don't contain this redundant information that would be nice. E.g., "``L2 constant must be non-negative"should just be "Must be non-negative."`, similar for other messages here that needlessly re-identify what paramater they're talking about, despite the fact that the name of the parameter is already part of the error message.


Refers to: src/Microsoft.ML.StandardLearners/Standard/LinearClassificationTrainer.cs:201 in dc42fee. [](commit_id = dc42fee, deletion_comment = False)

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Thanks @justinormont . If you wanted to improve those other badly structured messages preceding your changes that would also help improve our overall quality.

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:shipit:

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@TomFinley : I did a pass of word-smithing.

The warning now reads as:
Warning: The L2 regularization constant must be at least 1E-09. In SDCA, the dual formulation is only valid with a positive constant, and values below 1E-09 cause very slow convergence. The original L2Const = 0, was replaced with L2Const = 1E-09.

@justinormont
justinormont merged commit 98318b6 into dotnet:masterJul 30, 2018
@justinormont
justinormont deleted the sdca-l2-fix branch July 31, 2018 17:11
codemzs pushed a commit to codemzs/machinelearning that referenced this pull request Aug 1, 2018
* Fix warning for L2 in SDCA
* String interpolation
* Word-smithing the warning message
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}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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Add needed param to warning for L2 in SDCA - #597

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justinormont merged 6 commits into
dotnet:masterfrom
justinormont:sdca-l2-fix
Jul 30, 2018
Merged

Add needed param to warning for L2 in SDCA#597
justinormont merged 6 commits into
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justinormont:sdca-l2-fix

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Closes#596

ch.Warning("The specified l2Const = {0} is too small. SDCA optimizes the dual objective function. " +
"The dual formulation is only valid with a positive L2 regularization. Also, an l2Const less than {1} " +
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const);
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const, L2LowerBound);

@TomFinleyTomFinleyJul 29, 2018

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l2Const [](start = 83, length = 7)

Hi @justinormont thanks for looking at this. Another problem with this message, replace these with nameof(L2Const), here, and everywhere in this message that it is used, in the format args. It might go easier if you used the $ string interpolation. #resolved

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@TomFinley : Perhaps there's a StyleCop (ref: #553) rule we can enable, which can catch future issues like this mismatched (param count) vs. (count of items in the String.Format-style).

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Such a code analysis rule would have to be aware of ch.Warning, ch.Except, and all such other places -- certainly StyleCop is unaware of this. One possible remediation would be to drop all usage of such things, and insist that if people want formatted args, we simply do $ style string interpolation, which just simply works.


In reply to: 408797756 [](ancestors = 408797756)

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 env.CheckUserArg(L2Const == null || L2Const >= 0, nameof(L2Const), "L2 constant must be non-negative.");

If you wanted to improve these messages while you're at it so they don't contain this redundant information that would be nice. E.g., "``L2 constant must be non-negative"should just be "Must be non-negative."`, similar for other messages here that needlessly re-identify what paramater they're talking about, despite the fact that the name of the parameter is already part of the error message.


Refers to: src/Microsoft.ML.StandardLearners/Standard/LinearClassificationTrainer.cs:201 in dc42fee. [](commit_id = dc42fee, deletion_comment = False)

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Thanks @justinormont . If you wanted to improve those other badly structured messages preceding your changes that would also help improve our overall quality.

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:shipit:

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@TomFinley : I did a pass of word-smithing.

The warning now reads as:
Warning: The L2 regularization constant must be at least 1E-09. In SDCA, the dual formulation is only valid with a positive constant, and values below 1E-09 cause very slow convergence. The original L2Const = 0, was replaced with L2Const = 1E-09.

@justinormont
justinormont merged commit 98318b6 into dotnet:masterJul 30, 2018
@justinormont
justinormont deleted the sdca-l2-fix branch July 31, 2018 17:11
codemzs pushed a commit to codemzs/machinelearning that referenced this pull request Aug 1, 2018
* Fix warning for L2 in SDCA
* String interpolation
* Word-smithing the warning message
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Add needed param to warning for L2 in SDCA - #597

Merged
justinormont merged 6 commits into
dotnet:masterfrom
justinormont:sdca-l2-fix
Jul 30, 2018
Merged

Add needed param to warning for L2 in SDCA#597
justinormont merged 6 commits into
dotnet:masterfrom
justinormont:sdca-l2-fix

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Closes#596

ch.Warning("The specified l2Const = {0} is too small. SDCA optimizes the dual objective function. " +
"The dual formulation is only valid with a positive L2 regularization. Also, an l2Const less than {1} " +
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const);
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const, L2LowerBound);

@TomFinleyTomFinleyJul 29, 2018

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l2Const [](start = 83, length = 7)

Hi @justinormont thanks for looking at this. Another problem with this message, replace these with nameof(L2Const), here, and everywhere in this message that it is used, in the format args. It might go easier if you used the $ string interpolation. #resolved

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@dotnet-bot test OSX10.13 Debug

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@TomFinley : Perhaps there's a StyleCop (ref: #553) rule we can enable, which can catch future issues like this mismatched (param count) vs. (count of items in the String.Format-style).

@TomFinley

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Such a code analysis rule would have to be aware of ch.Warning, ch.Except, and all such other places -- certainly StyleCop is unaware of this. One possible remediation would be to drop all usage of such things, and insist that if people want formatted args, we simply do $ style string interpolation, which just simply works.


In reply to: 408797756 [](ancestors = 408797756)

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 env.CheckUserArg(L2Const == null || L2Const >= 0, nameof(L2Const), "L2 constant must be non-negative.");

If you wanted to improve these messages while you're at it so they don't contain this redundant information that would be nice. E.g., "``L2 constant must be non-negative"should just be "Must be non-negative."`, similar for other messages here that needlessly re-identify what paramater they're talking about, despite the fact that the name of the parameter is already part of the error message.


Refers to: src/Microsoft.ML.StandardLearners/Standard/LinearClassificationTrainer.cs:201 in dc42fee. [](commit_id = dc42fee, deletion_comment = False)

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Thanks @justinormont . If you wanted to improve those other badly structured messages preceding your changes that would also help improve our overall quality.

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:shipit:

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@TomFinley : I did a pass of word-smithing.

The warning now reads as:
Warning: The L2 regularization constant must be at least 1E-09. In SDCA, the dual formulation is only valid with a positive constant, and values below 1E-09 cause very slow convergence. The original L2Const = 0, was replaced with L2Const = 1E-09.

@justinormont
justinormont merged commit 98318b6 into dotnet:masterJul 30, 2018
@justinormont
justinormont deleted the sdca-l2-fix branch July 31, 2018 17:11
codemzs pushed a commit to codemzs/machinelearning that referenced this pull request Aug 1, 2018
* Fix warning for L2 in SDCA
* String interpolation
* Word-smithing the warning message
@ghostghost locked as resolved and limited conversation to collaborators Mar 29, 2022
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Add needed param to warning for L2 in SDCA - #597

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justinormont merged 6 commits into
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justinormont:sdca-l2-fix
Jul 30, 2018
Merged

Add needed param to warning for L2 in SDCA#597
justinormont merged 6 commits into
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justinormont:sdca-l2-fix

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Closes#596

ch.Warning("The specified l2Const = {0} is too small. SDCA optimizes the dual objective function. " +
"The dual formulation is only valid with a positive L2 regularization. Also, an l2Const less than {1} " +
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const);
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const, L2LowerBound);

@TomFinleyTomFinleyJul 29, 2018

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l2Const [](start = 83, length = 7)

Hi @justinormont thanks for looking at this. Another problem with this message, replace these with nameof(L2Const), here, and everywhere in this message that it is used, in the format args. It might go easier if you used the $ string interpolation. #resolved

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@dotnet-bot test OSX10.13 Debug

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@TomFinley : Perhaps there's a StyleCop (ref: #553) rule we can enable, which can catch future issues like this mismatched (param count) vs. (count of items in the String.Format-style).

@TomFinley

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Such a code analysis rule would have to be aware of ch.Warning, ch.Except, and all such other places -- certainly StyleCop is unaware of this. One possible remediation would be to drop all usage of such things, and insist that if people want formatted args, we simply do $ style string interpolation, which just simply works.


In reply to: 408797756 [](ancestors = 408797756)

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 env.CheckUserArg(L2Const == null || L2Const >= 0, nameof(L2Const), "L2 constant must be non-negative.");

If you wanted to improve these messages while you're at it so they don't contain this redundant information that would be nice. E.g., "``L2 constant must be non-negative"should just be "Must be non-negative."`, similar for other messages here that needlessly re-identify what paramater they're talking about, despite the fact that the name of the parameter is already part of the error message.


Refers to: src/Microsoft.ML.StandardLearners/Standard/LinearClassificationTrainer.cs:201 in dc42fee. [](commit_id = dc42fee, deletion_comment = False)

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Thanks @justinormont . If you wanted to improve those other badly structured messages preceding your changes that would also help improve our overall quality.

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:shipit:

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@TomFinley : I did a pass of word-smithing.

The warning now reads as:
Warning: The L2 regularization constant must be at least 1E-09. In SDCA, the dual formulation is only valid with a positive constant, and values below 1E-09 cause very slow convergence. The original L2Const = 0, was replaced with L2Const = 1E-09.

@justinormont
justinormont merged commit 98318b6 into dotnet:masterJul 30, 2018
@justinormont
justinormont deleted the sdca-l2-fix branch July 31, 2018 17:11
codemzs pushed a commit to codemzs/machinelearning that referenced this pull request Aug 1, 2018
* Fix warning for L2 in SDCA
* String interpolation
* Word-smithing the warning message
@ghostghost locked as resolved and limited conversation to collaborators Mar 29, 2022
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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Add needed param to warning for L2 in SDCA - #597

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justinormont merged 6 commits into
dotnet:masterfrom
justinormont:sdca-l2-fix
Jul 30, 2018
Merged

Add needed param to warning for L2 in SDCA#597
justinormont merged 6 commits into
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justinormont:sdca-l2-fix

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Closes#596

ch.Warning("The specified l2Const = {0} is too small. SDCA optimizes the dual objective function. " +
"The dual formulation is only valid with a positive L2 regularization. Also, an l2Const less than {1} " +
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const);
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const, L2LowerBound);

@TomFinleyTomFinleyJul 29, 2018

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l2Const [](start = 83, length = 7)

Hi @justinormont thanks for looking at this. Another problem with this message, replace these with nameof(L2Const), here, and everywhere in this message that it is used, in the format args. It might go easier if you used the $ string interpolation. #resolved

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@dotnet-bot test OSX10.13 Debug

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@TomFinley : Perhaps there's a StyleCop (ref: #553) rule we can enable, which can catch future issues like this mismatched (param count) vs. (count of items in the String.Format-style).

@TomFinley

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Such a code analysis rule would have to be aware of ch.Warning, ch.Except, and all such other places -- certainly StyleCop is unaware of this. One possible remediation would be to drop all usage of such things, and insist that if people want formatted args, we simply do $ style string interpolation, which just simply works.


In reply to: 408797756 [](ancestors = 408797756)

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 env.CheckUserArg(L2Const == null || L2Const >= 0, nameof(L2Const), "L2 constant must be non-negative.");

If you wanted to improve these messages while you're at it so they don't contain this redundant information that would be nice. E.g., "``L2 constant must be non-negative"should just be "Must be non-negative."`, similar for other messages here that needlessly re-identify what paramater they're talking about, despite the fact that the name of the parameter is already part of the error message.


Refers to: src/Microsoft.ML.StandardLearners/Standard/LinearClassificationTrainer.cs:201 in dc42fee. [](commit_id = dc42fee, deletion_comment = False)

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Thanks @justinormont . If you wanted to improve those other badly structured messages preceding your changes that would also help improve our overall quality.

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:shipit:

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@TomFinley : I did a pass of word-smithing.

The warning now reads as:
Warning: The L2 regularization constant must be at least 1E-09. In SDCA, the dual formulation is only valid with a positive constant, and values below 1E-09 cause very slow convergence. The original L2Const = 0, was replaced with L2Const = 1E-09.

@justinormont
justinormont merged commit 98318b6 into dotnet:masterJul 30, 2018
@justinormont
justinormont deleted the sdca-l2-fix branch July 31, 2018 17:11
codemzs pushed a commit to codemzs/machinelearning that referenced this pull request Aug 1, 2018
* Fix warning for L2 in SDCA
* String interpolation
* Word-smithing the warning message
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Add needed param to warning for L2 in SDCA - #597

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justinormont:sdca-l2-fix
Jul 30, 2018
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Add needed param to warning for L2 in SDCA#597
justinormont merged 6 commits into
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justinormont:sdca-l2-fix

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Closes#596

ch.Warning("The specified l2Const = {0} is too small. SDCA optimizes the dual objective function. " +
"The dual formulation is only valid with a positive L2 regularization. Also, an l2Const less than {1} " +
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const);
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const, L2LowerBound);

@TomFinleyTomFinleyJul 29, 2018

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l2Const [](start = 83, length = 7)

Hi @justinormont thanks for looking at this. Another problem with this message, replace these with nameof(L2Const), here, and everywhere in this message that it is used, in the format args. It might go easier if you used the $ string interpolation. #resolved

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@dotnet-bot test OSX10.13 Debug

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@TomFinley : Perhaps there's a StyleCop (ref: #553) rule we can enable, which can catch future issues like this mismatched (param count) vs. (count of items in the String.Format-style).

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Such a code analysis rule would have to be aware of ch.Warning, ch.Except, and all such other places -- certainly StyleCop is unaware of this. One possible remediation would be to drop all usage of such things, and insist that if people want formatted args, we simply do $ style string interpolation, which just simply works.


In reply to: 408797756 [](ancestors = 408797756)

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 env.CheckUserArg(L2Const == null || L2Const >= 0, nameof(L2Const), "L2 constant must be non-negative.");

If you wanted to improve these messages while you're at it so they don't contain this redundant information that would be nice. E.g., "``L2 constant must be non-negative"should just be "Must be non-negative."`, similar for other messages here that needlessly re-identify what paramater they're talking about, despite the fact that the name of the parameter is already part of the error message.


Refers to: src/Microsoft.ML.StandardLearners/Standard/LinearClassificationTrainer.cs:201 in dc42fee. [](commit_id = dc42fee, deletion_comment = False)

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Thanks @justinormont . If you wanted to improve those other badly structured messages preceding your changes that would also help improve our overall quality.

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:shipit:

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@TomFinley : I did a pass of word-smithing.

The warning now reads as:
Warning: The L2 regularization constant must be at least 1E-09. In SDCA, the dual formulation is only valid with a positive constant, and values below 1E-09 cause very slow convergence. The original L2Const = 0, was replaced with L2Const = 1E-09.

@justinormont
justinormont merged commit 98318b6 into dotnet:masterJul 30, 2018
@justinormont
justinormont deleted the sdca-l2-fix branch July 31, 2018 17:11
codemzs pushed a commit to codemzs/machinelearning that referenced this pull request Aug 1, 2018
* Fix warning for L2 in SDCA
* String interpolation
* Word-smithing the warning message
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Add needed param to warning for L2 in SDCA - #597

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justinormont merged 6 commits into
dotnet:masterfrom
justinormont:sdca-l2-fix
Jul 30, 2018
Merged

Add needed param to warning for L2 in SDCA#597
justinormont merged 6 commits into
dotnet:masterfrom
justinormont:sdca-l2-fix

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Closes#596

ch.Warning("The specified l2Const = {0} is too small. SDCA optimizes the dual objective function. " +
"The dual formulation is only valid with a positive L2 regularization. Also, an l2Const less than {1} " +
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const);
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const, L2LowerBound);

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l2Const [](start = 83, length = 7)

Hi @justinormont thanks for looking at this. Another problem with this message, replace these with nameof(L2Const), here, and everywhere in this message that it is used, in the format args. It might go easier if you used the $ string interpolation. #resolved

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@dotnet-bot test OSX10.13 Debug

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@TomFinley : Perhaps there's a StyleCop (ref: #553) rule we can enable, which can catch future issues like this mismatched (param count) vs. (count of items in the String.Format-style).

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Such a code analysis rule would have to be aware of ch.Warning, ch.Except, and all such other places -- certainly StyleCop is unaware of this. One possible remediation would be to drop all usage of such things, and insist that if people want formatted args, we simply do $ style string interpolation, which just simply works.


In reply to: 408797756 [](ancestors = 408797756)

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 env.CheckUserArg(L2Const == null || L2Const >= 0, nameof(L2Const), "L2 constant must be non-negative.");

If you wanted to improve these messages while you're at it so they don't contain this redundant information that would be nice. E.g., "``L2 constant must be non-negative"should just be "Must be non-negative."`, similar for other messages here that needlessly re-identify what paramater they're talking about, despite the fact that the name of the parameter is already part of the error message.


Refers to: src/Microsoft.ML.StandardLearners/Standard/LinearClassificationTrainer.cs:201 in dc42fee. [](commit_id = dc42fee, deletion_comment = False)

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Thanks @justinormont . If you wanted to improve those other badly structured messages preceding your changes that would also help improve our overall quality.

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:shipit:

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@TomFinley : I did a pass of word-smithing.

The warning now reads as:
Warning: The L2 regularization constant must be at least 1E-09. In SDCA, the dual formulation is only valid with a positive constant, and values below 1E-09 cause very slow convergence. The original L2Const = 0, was replaced with L2Const = 1E-09.

@justinormont
justinormont merged commit 98318b6 into dotnet:masterJul 30, 2018
@justinormont
justinormont deleted the sdca-l2-fix branch July 31, 2018 17:11
codemzs pushed a commit to codemzs/machinelearning that referenced this pull request Aug 1, 2018
* Fix warning for L2 in SDCA
* String interpolation
* Word-smithing the warning message
@ghostghost locked as resolved and limited conversation to collaborators Mar 29, 2022
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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Add needed param to warning for L2 in SDCA - #597

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justinormont merged 6 commits into
dotnet:masterfrom
justinormont:sdca-l2-fix
Jul 30, 2018
Merged

Add needed param to warning for L2 in SDCA#597
justinormont merged 6 commits into
dotnet:masterfrom
justinormont:sdca-l2-fix

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Closes#596

ch.Warning("The specified l2Const = {0} is too small. SDCA optimizes the dual objective function. " +
"The dual formulation is only valid with a positive L2 regularization. Also, an l2Const less than {1} " +
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const);
"could drastically slow down the convergence. So using l2Const = {1} instead.", L2Const, L2LowerBound);

@TomFinleyTomFinleyJul 29, 2018

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l2Const [](start = 83, length = 7)

Hi @justinormont thanks for looking at this. Another problem with this message, replace these with nameof(L2Const), here, and everywhere in this message that it is used, in the format args. It might go easier if you used the $ string interpolation. #resolved

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@dotnet-bot test OSX10.13 Debug

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@TomFinley : Perhaps there's a StyleCop (ref: #553) rule we can enable, which can catch future issues like this mismatched (param count) vs. (count of items in the String.Format-style).

@TomFinley

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Such a code analysis rule would have to be aware of ch.Warning, ch.Except, and all such other places -- certainly StyleCop is unaware of this. One possible remediation would be to drop all usage of such things, and insist that if people want formatted args, we simply do $ style string interpolation, which just simply works.


In reply to: 408797756 [](ancestors = 408797756)

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 env.CheckUserArg(L2Const == null || L2Const >= 0, nameof(L2Const), "L2 constant must be non-negative.");

If you wanted to improve these messages while you're at it so they don't contain this redundant information that would be nice. E.g., "``L2 constant must be non-negative"should just be "Must be non-negative."`, similar for other messages here that needlessly re-identify what paramater they're talking about, despite the fact that the name of the parameter is already part of the error message.


Refers to: src/Microsoft.ML.StandardLearners/Standard/LinearClassificationTrainer.cs:201 in dc42fee. [](commit_id = dc42fee, deletion_comment = False)

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Thanks @justinormont . If you wanted to improve those other badly structured messages preceding your changes that would also help improve our overall quality.

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:shipit:

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@TomFinley : I did a pass of word-smithing.

The warning now reads as:
Warning: The L2 regularization constant must be at least 1E-09. In SDCA, the dual formulation is only valid with a positive constant, and values below 1E-09 cause very slow convergence. The original L2Const = 0, was replaced with L2Const = 1E-09.

@justinormont
justinormont merged commit 98318b6 into dotnet:masterJul 30, 2018
@justinormont
justinormont deleted the sdca-l2-fix branch July 31, 2018 17:11
codemzs pushed a commit to codemzs/machinelearning that referenced this pull request Aug 1, 2018
* Fix warning for L2 in SDCA
* String interpolation
* Word-smithing the warning message
@ghostghost locked as resolved and limited conversation to collaborators Mar 29, 2022
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