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How to convert an array of strings to an array of floats in numpy?
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Well, if you're reading the data in as a list, just do np.array(map(float, list_of_strings)) (...
undefined reference to boost::system::system_category() when compiling
I'm trying to compile a program on Ubuntu 11.10 that uses the Boost libraries. I have the 1.46-dev Boost libraries from the Ubuntu Repository installed, but I get an error when compiling the program.
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How to 'insert if not exists' in MySQL?
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Insert into a MySQL table or update if exists
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Apache Spark: The number of cores vs. the number of executors
... Imagine a cluster with six nodes running NodeManagers, each
equipped with 16 cores and 64GB of memory. The NodeManager capacities,
yarn.nodemanager.resource.memory-mb and
yarn.nodemanager.resource.cpu-vcores, should probably be set to 63 *
1024 = 64512 (megabytes) and 15 respectively. We avoid allo...
从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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创建自己的推荐引擎构造器
1. Mahout推荐引擎概况
Mahout的推荐引擎，要从org.apache.mahout.cf.taste包说起。
packages的说明：
common: 公共类包括，异常，数据刷新接口，权重常量
eval: 定义构造器接口，...
Differences in boolean operators: & vs && and | vs ||
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DataTable: Hide the Show Entries dropdown but keep the Search box
...es dropdown but keep the Search box in DataTable? I want to always display 10 rows with pagination at the bottom along with search box but do not want to display the Show entries dropdown.
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How can query string parameters be forwarded through a proxy_pass with nginx?
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From the proxy_pass documentation:
A special case is using variables in the proxy_pass sta...