{"version":2,"relationshipURLBase":"https://codingai-lec03.pages.dev/course/blocks/fixed-representation-label-budget-evidence.html","relationshipResolution":"Resolve relative relationship URLs against relationshipURLBase; complete records and absolute URLs are in blocks.","title":"同一表示，增加标签与改变读出是两种干预","url":"https://codingai-lec03.pages.dev/course/blocks/fixed-representation-label-budget-evidence.html","markdown":"https://codingai-lec03.pages.dev/course/blocks/fixed-representation-label-budget-evidence.md","pages":[{"id":"reading-opening","title":"同一表示，增加标签与改变读出是两种干预","unit":"怎样判断表示支持了哪种使用方式？","unitId":"i-use-and-evaluate","chapter":"I","number":1}],"aliases":[{"oldId":"b-09fb461b305ef6fb11c745a1","targetId":"b-09fb461b305ef6fb11c745a1","page":"reading-opening","operation":"move","beforeSHA256":"6d042796e41aacd282bb30e977b77ab7770eaae1b14929599513619537bfbf00","afterSHA256":"6d042796e41aacd282bb30e977b77ab7770eaae1b14929599513619537bfbf00","reason":"Same source body in authored semantic page"},{"oldId":"b-e8e97ca851f6ee5dd39b7751","targetId":"b-e8e97ca851f6ee5dd39b7751","page":"reading-opening","operation":"move","beforeSHA256":"54cbe5d9c97cc6c6bacf77ce81460d0720d81671f6d484205fd796b01b0b0bbd","afterSHA256":"54cbe5d9c97cc6c6bacf77ce81460d0720d81671f6d484205fd796b01b0b0bbd","reason":"Same source body in authored semantic page"},{"oldId":"b-8664c59ee156e56867e7b899","targetId":"b-8664c59ee156e56867e7b899","page":"reading-opening","operation":"move","beforeSHA256":"a1e8649573c010293d8b99009a59442b5eb9c434705fdc3b4215f2627fae31be","afterSHA256":"a1e8649573c010293d8b99009a59442b5eb9c434705fdc3b4215f2627fae31be","reason":"Same source body in authored semantic page"},{"oldId":"b-a1cfc87e5f3e1aa5238935fc","targetId":"b-a1cfc87e5f3e1aa5238935fc","page":"reading-opening","operation":"move","beforeSHA256":"98840bf437de632f505935090056c5d148d5693b8b7862561f53aa550909a0e6","afterSHA256":"98840bf437de632f505935090056c5d148d5693b8b7862561f53aa550909a0e6","reason":"Same source body in authored semantic page"},{"oldId":"b-2b01ed7ccfae8de5dc93b884","targetId":"b-2b01ed7ccfae8de5dc93b884","page":"reading-opening","operation":"move","beforeSHA256":"35a5b153d095750e956842e837b63f78ebffc6b70ac5e9283ce94e3a771ccf17","afterSHA256":"35a5b153d095750e956842e837b63f78ebffc6b70ac5e9283ce94e3a771ccf17","reason":"Same source body in authored semantic page"},{"oldId":"b-2675f73377d0aeb5d5f9b1a7","targetId":"b-2675f73377d0aeb5d5f9b1a7","page":"reading-opening","operation":"move","beforeSHA256":"2b9ccef7e1220e2250cceff1abd8bdd736b42f8da5a223f26b029f44b962e807","afterSHA256":"2b9ccef7e1220e2250cceff1abd8bdd736b42f8da5a223f26b029f44b962e807","reason":"Same source body in authored semantic page"}],"blocks":[{"id":"b-09fb461b305ef6fb11c745a1","type":"h1","scope":"fixed-representation-label-budget-evidence","url":"https://codingai-lec03.pages.dev/course/blocks/fixed-representation-label-budget-evidence.html#b-09fb461b305ef6fb11c745a1","content":"# 同一表示，增加标签与改变读出是两种干预","sha256":"6d042796e41aacd282bb30e977b77ab7770eaae1b14929599513619537bfbf00","chapter":{"id":"I","title":"学习信号与表示"},"unit":{"id":"i-use-and-evaluate","title":"怎样判断表示支持了哪种使用方式？"},"page":{"id":"reading-opening","title":"同一表示，增加标签与改变读出是两种干预","number":1},"sectionTitle":"同一表示，增加标签与改变读出是两种干预","currentQuestion":"同一表示，增加标签与改变读出是两种干预","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":null,"nextBlock":"b-e8e97ca851f6ee5dd39b7751","prerequisites":[{"id":"b-e8e97ca851f6ee5dd39b7751","url":"#b-e8e97ca851f6ee5dd39b7751","role":"problem-context"}],"relatedBlocks":[]},{"id":"b-e8e97ca851f6ee5dd39b7751","type":"p","scope":"fixed-representation-label-budget-evidence","url":"https://codingai-lec03.pages.dev/course/blocks/fixed-representation-label-budget-evidence.html#b-e8e97ca851f6ee5dd39b7751","content":"把第一部分的方法转为使用与评价：冻结读出问现成表示，微调问适配起点，二者应各有协议。","sha256":"54cbe5d9c97cc6c6bacf77ce81460d0720d81671f6d484205fd796b01b0b0bbd","chapter":{"id":"I","title":"学习信号与表示"},"unit":{"id":"i-use-and-evaluate","title":"怎样判断表示支持了哪种使用方式？"},"page":{"id":"reading-opening","title":"同一表示，增加标签与改变读出是两种干预","number":1},"sectionTitle":"同一表示，增加标签与改变读出是两种干预","currentQuestion":"同一表示，增加标签与改变读出是两种干预","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-09fb461b305ef6fb11c745a1","nextBlock":"b-8664c59ee156e56867e7b899","prerequisites":[{"id":"b-09fb461b305ef6fb11c745a1","url":"#b-09fb461b305ef6fb11c745a1","role":"section-title"}],"relatedBlocks":[]},{"id":"b-8664c59ee156e56867e7b899","type":"p","scope":"fixed-representation-label-budget-evidence","url":"https://codingai-lec03.pages.dev/course/blocks/fixed-representation-label-budget-evidence.html#b-8664c59ee156e56867e7b899","content":"LAB 01使用一个已有有监督CNN的32维表示，目标为MNIST数字是否≥5。640个目标样本与源模型训练/验证索引分离，目标再分256训练、128验证、256保留；图像统一右移2像素。","sha256":"a1e8649573c010293d8b99009a59442b5eb9c434705fdc3b4215f2627fae31be","chapter":{"id":"I","title":"学习信号与表示"},"unit":{"id":"i-use-and-evaluate","title":"怎样判断表示支持了哪种使用方式？"},"page":{"id":"reading-opening","title":"同一表示，增加标签与改变读出是两种干预","number":1},"sectionTitle":"同一表示，增加标签与改变读出是两种干预","currentQuestion":"同一表示，增加标签与改变读出是两种干预","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-e8e97ca851f6ee5dd39b7751","nextBlock":"b-a1cfc87e5f3e1aa5238935fc","prerequisites":[{"id":"b-09fb461b305ef6fb11c745a1","url":"#b-09fb461b305ef6fb11c745a1","role":"section-title"},{"id":"b-e8e97ca851f6ee5dd39b7751","url":"#b-e8e97ca851f6ee5dd39b7751","role":"problem-context"}],"relatedBlocks":[]},{"id":"b-a1cfc87e5f3e1aa5238935fc","type":"p","scope":"fixed-representation-label-budget-evidence","url":"https://codingai-lec03.pages.dev/course/blocks/fixed-representation-label-budget-evidence.html#b-a1cfc87e5f3e1aa5238935fc","content":"保存结果中，标签32→256时，kNN保留准确率从0.7148到0.9492；固定C=10的线性逻辑回归从0.6133到0.8359。编码器从头到尾未变，所以差别来自标签预算与读出使用方式，而不是编码器重新学了一次。","sha256":"98840bf437de632f505935090056c5d148d5693b8b7862561f53aa550909a0e6","chapter":{"id":"I","title":"学习信号与表示"},"unit":{"id":"i-use-and-evaluate","title":"怎样判断表示支持了哪种使用方式？"},"page":{"id":"reading-opening","title":"同一表示，增加标签与改变读出是两种干预","number":1},"sectionTitle":"同一表示，增加标签与改变读出是两种干预","currentQuestion":"同一表示，增加标签与改变读出是两种干预","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-8664c59ee156e56867e7b899","nextBlock":"b-2b01ed7ccfae8de5dc93b884","prerequisites":[{"id":"b-09fb461b305ef6fb11c745a1","url":"#b-09fb461b305ef6fb11c745a1","role":"section-title"},{"id":"b-e8e97ca851f6ee5dd39b7751","url":"#b-e8e97ca851f6ee5dd39b7751","role":"problem-context"}],"relatedBlocks":[]},{"id":"b-2b01ed7ccfae8de5dc93b884","type":"p","scope":"fixed-representation-label-budget-evidence","url":"https://codingai-lec03.pages.dev/course/blocks/fixed-representation-label-budget-evidence.html#b-2b01ed7ccfae8de5dc93b884","content":"这提供一个很具体的学习动作：先固定预算比较两种读出，再固定读出比较预算。不要把这组结果误读成“自监督胜过监督”；源CNN本来就是监督训练的。也不要据单次差距断言表示中没有某种信息——正则强度和读出函数类都是竞争解释。","sha256":"35a5b153d095750e956842e837b63f78ebffc6b70ac5e9283ce94e3a771ccf17","chapter":{"id":"I","title":"学习信号与表示"},"unit":{"id":"i-use-and-evaluate","title":"怎样判断表示支持了哪种使用方式？"},"page":{"id":"reading-opening","title":"同一表示，增加标签与改变读出是两种干预","number":1},"sectionTitle":"同一表示，增加标签与改变读出是两种干预","currentQuestion":"同一表示，增加标签与改变读出是两种干预","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-a1cfc87e5f3e1aa5238935fc","nextBlock":"b-2675f73377d0aeb5d5f9b1a7","prerequisites":[{"id":"b-09fb461b305ef6fb11c745a1","url":"#b-09fb461b305ef6fb11c745a1","role":"section-title"},{"id":"b-e8e97ca851f6ee5dd39b7751","url":"#b-e8e97ca851f6ee5dd39b7751","role":"problem-context"}],"relatedBlocks":[]},{"id":"b-2675f73377d0aeb5d5f9b1a7","type":"h2","scope":"fixed-representation-label-budget-evidence","url":"https://codingai-lec03.pages.dev/course/blocks/fixed-representation-label-budget-evidence.html#b-2675f73377d0aeb5d5f9b1a7","content":"## 继续阅读与实验","sha256":"2b9ccef7e1220e2250cceff1abd8bdd736b42f8da5a223f26b029f44b962e807","chapter":{"id":"I","title":"学习信号与表示"},"unit":{"id":"i-use-and-evaluate","title":"怎样判断表示支持了哪种使用方式？"},"page":{"id":"reading-opening","title":"同一表示，增加标签与改变读出是两种干预","number":1},"sectionTitle":"同一表示，增加标签与改变读出是两种干预","currentQuestion":"同一表示，增加标签与改变读出是两种干预","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-2b01ed7ccfae8de5dc93b884","nextBlock":null,"prerequisites":[{"id":"b-09fb461b305ef6fb11c745a1","url":"#b-09fb461b305ef6fb11c745a1","role":"section-title"},{"id":"b-e8e97ca851f6ee5dd39b7751","url":"#b-e8e97ca851f6ee5dd39b7751","role":"problem-context"}],"relatedBlocks":[]}]}