裁剪和知识蒸馏方式效果对比 在美团搜索核心排序的业务场景下，我们采用知识蒸馏使得 BERT 模型在对响应时 间要求苛刻的搜索场景下符合了上线的要求，并且效果无显著的性能损失。知识蒸 馏（Knowledge Distillation）核心思想是通过迁移知识，从而通过训练好的大模型 得到更加适合推理的小模型。首先我们基于 MT-BERT（12 Layers），在大规模的 美团点评业务语料上进行知识蒸馏得到通用的 MT-BERT Knowledge in a Neural Network. 2015. [7] Yew Ken Chia et al.Transformer to CNN: Label-scarce distillation for efficient text classification. 2018. [8] K-BERT: Enabling Language Representation with

2 YOLOv6 量化感知蒸馏框架 针 对 YOLOv6s， 我 们 选 择 对 Neck（Rep-PAN）输 出 的 特 征 图 进 行 通 道 蒸 馏 （channel-wise distillation, CW)。另外，我们采用“自蒸馏”的方法，教师模型是 FP32 精度的 YOLOv6s，学生模型是 INT8 精度的 YOLOv6s。下图 7 是一个简化 示意图，只画出了 Neck Nsight-systems: https://docs.nvidia.com/nsight-systems/UserGuide/index.html [6] Channel-wise Knowledge Distillation for Dense Prediction, https://arxiv.org/ abs/2011.13256 [7] YOLOv6: A Single-Stage Object Detection https://tech.meituan.com/2021/07/08/multi-business-modeling.html. [7] Tang, Jiaxi, and Ke Wang. “Ranking distillation: Learning compact ranking models with high performance for recommender system.” Proceedings

a colon. There’s no requirement for classes to subclass any standard root class, so you can include or omit a superclass as needed. Methods on a subclass that override the superclass’s implementation are simpleDescription() PDF conversion courtesy of www.appsdissected.com E X P E R I M E N T Make another subclass of NamedShape called Circle that takes a radius and a name as arguments to its initializer. Implement EquilateralTriangle class has three different steps: 1. Setting the value of properties that the subclass declares. 2. Calling the superclass’s initializer. 3. Changing the value of properties defined

colon. There is no requirement for classes to subclass any standard root class, so you can include or omit a superclass as needed. Methods on a subclass that override the superclass’s implementation "my test square") 19 test.area() 20 test.simpleDescription() E X P E R I M E N T Make another subclass of NamedShape called Circle that takes a radius and a name as arguments to its initializer. Implement EquilateralTriangle class has three different steps: 1. Setting the value of properties that the subclass declares. 2. Calling the superclass’s initializer. 3. Changing the value of properties defined

Tornado web application is done in subclasses of RequestHandler. The main entry point for a handler subclass is a method named after the HTTP method being handled: get(), post(), etc. Each handler may define define a BaseHandler class that overrides methods such as write_error and get_current_user and then subclass your own BaseHandler instead of RequestHandler for all your specific handlers. Handling request different template paths for different handlers). To load templates from a non-filesystem location, subclass tornado.template.BaseLoader and pass an instance as the template_loader application setting. Compiled

Tornado web application is done in subclasses of RequestHandler. The main entry point for a handler subclass is a method named after the HTTP method being handled: get(), post(), etc. Each handler may define define a BaseHandler class that overrides methods such as write_error and get_current_user and then subclass your own BaseHandler instead of RequestHandler for all your specific handlers. Handling request different template paths for different handlers). To load templates from a non-filesystem location, subclass tornado.template.BaseLoader and pass an in- stance as the template_loader application setting.

Tornado web application is done in subclasses of RequestHandler. The main entry point for a handler subclass is a method named after the HTTP method being handled: get(), post(), etc. Each handler may define define a BaseHandler class that overrides methods such as write_error and get_current_user and then subclass your own BaseHandler instead of RequestHandler for all your specific handlers. Handling request different template paths for different handlers). To load templates from a non-filesystem location, subclass tornado.template.BaseLoader and pass an in- stance as the template_loader application setting.

Tornado web application is done in subclasses of RequestHandler. The main entry point for a handler subclass is a method named after the HTTP method being handled: get(), post(), etc. Each handler may define define a BaseHandler class that overrides methods such as write_error and get_current_user and then subclass your own BaseHandler instead of RequestHandler for all your specific handlers. Handling request different template paths for different handlers). To load templates from a non-filesystem location, subclass tornado.template.BaseLoader and pass an instance as the template_loader application setting. Compiled

How to create custom model fields Introduction Background theory Writing a field subclass Writing a FileField subclass How to write custom lookups A lookup example A transformer example Writing an efficient assertIs(future_question.was_published_recently(), False) Here we have created a django.test.TestCase subclass with a method that creates a Question instance with a pub_date in the future. We then check the What happened is this: manage.py test polls looked for tests in the polls application it found a subclass of the django.test.TestCase class it created a special database for the purpose of testing it

Tornado web application is done in subclasses of RequestHandler. The main entry point for a handler subclass is a method named after the HTTP method being handled: get(), post(), etc. Each handler may define define a BaseHandler class that overrides methods such as write_error and get_current_user and then subclass your own BaseHandler instead of RequestHandler for all your specific handlers. Handling request different template paths for different handlers). To load templates from a non-filesystem location, subclass tornado.template.BaseLoader and pass an instance as the template_loader application setting. Compiled