第24月第30天 scrapy《TensorFlow机器学习项目实战》项目记录
1.Scrapy
https://www.imooc.com/learn/1017
https://github.com/pythonsite/spider/tree/master/jobboleSpider
xpath
验证xpath也是类似的。语法是$x(“your_xpath_selector”)。注意:语法中括号里需要通过双引号括起来,如果xpath语句中有双引号,要改成单引号,不然只能解析到第一对双引号的内容
https://blog.csdn.net/baixiaozhe/article/details/78189520
https://www.github.com/zhaoxiangyu333/Python-Scrapy/
Use "scrapy" to see available commands
原因:
没有cd到项目根目录,因为crawl会去搜搜cmd目录下的scrapy.cfg
3.tensorflow逻辑回归(mnist)
https://blog.csdn.net/kenwengqie2235/article/details/78535384
3.三个月教你从零入门深度学习
https://github.com/huxiaoman7/learningdl
https://edu.hellobi.com/course/268
4.《TensorFlow机器学习项目实战》代码运行问题
命令
再pycharm建立virtualenv
cd ~/tensorflow2/tensorflow/
source bin/activate
pip install pandas
第3章 例1--单变量线性回归
1报错位置:.tf.scalar_summary(\'batch_loss\', loss)AttributeError: \'module\' object has no attribute \'scalar_summary\'修改为:tf.summary.scalar(\'batch_loss\', loss)原因:新版本做了调整
2.AttributeError: \'module\' object has no attribute \'histogram_summary\'修改为:tf.summary.histogram
3.tf.merge_all_summaries()改为:summary_op = tf.summaries.merge_all()
4.AttributeError: \'module\' object has no attribute \'SummaryWriter\':tf.train.SummaryWriter改为tf.summary.FileWriter
https://blog.csdn.net/lijjianqing/article/details/70155905?utm_source=copy
multiply
第6章 例1--MNIST数字分类
修改为
# Define loss and optimizer
cost = tf.reduce_mean(tf.nn.softmax_cross_entropy_with_logits(logits=pred, labels=Y))
第7章 例2--创作巴赫风格的曲目
https://github.com/sherjilozair/char-rnn-tensorflow
def lstm_cell(): if \'reuse\' in inspect.signature(tf.contrib.rnn.BasicLSTMCell.__init__).parameters: return tf.contrib.rnn.BasicLSTMCell(size, forget_bias=0.0, state_is_tuple=True, reuse=tf.get_variable_scope().reuse) else: return tf.contrib.rnn.BasicLSTMCell( size, forget_bias=0.0, state_is_tuple=True)
https://stackoverflow.com/questions/43060827/valueerror-attempt-to-have-a-second-rnncell-use-the-weights-of-a-variable-scope
第8章 例子--VGG艺术风格转移
https://github.com/anishathalye/neural-style
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https://www.cnblogs.com/lijingpeng/p/6009476.html