为什么我的主题权重的迹象在每次运行中都在变化?

问题描述

我正在从Gensim的Topics and Transformations tutorial运行LSI程序,由于某种原因,主题权重的迹象不断从正变为负,反之亦然。例如,这是我使用线条打印时得到的结果

for doc,as_text in zip(corpus_lsi,documents):
    print(doc,as_text)

Run 1
[(0,0.066007833960900791),(1,0.52007033063618491),(2,-0.37649581219168904)]
[(0,0.196675928591421),0.7609563167700063),0.5080674581001664)]
[(0,0.089926399724459982),0.72418606267525132),-0.408989731553764)]
[(0,0.075858476521777865),0.63205515860034334),-0.53935336057339001)]
[(0,0.10150299184979866),0.57373084830029653),0.67093385852959075)]
[(0,0.70321089393783254),-0.1611518021402539),-0.18266089635241448)]
[(0,0.87747876731198449),-0.16758906864658912),-0.10880822642632856)]
[(0,0.90986246868185872),-0.14086553628718496),0.00087117874886860625)]
[(0,0.61658253505692762),0.053929075663897361),0.25568697959599318)]

Run 2
[(0,0.066007833960908563),-0.52007033063618446),-0.37649581219168959)]
[(0,0.19667592859143226),-0.76095631677000253),0.50806745810016629)]
[(0,0.089926399724470751),-0.72418606267525032),-0.40898973155376284)]
[(0,0.075858476521787177),-0.63205515860034223),-0.5393533605733889)]
[(0,0.10150299184980684),-0.57373084830029419),0.67093385852959098)]
[(0,0.70321089393782976),0.16115180214026417),-0.18266089635241456)]
[(0,0.87747876731198149),0.16758906864660211),-0.10880822642632891)]
[(0,0.90986246868185627),0.14086553628719861),0.00087117874886795399)]
[(0,0.61658253505692828),-0.053929075663887563),0.25568697959599251)]

Run 3
[(0,0.066007833960902929),-0.52007033063618535),0.37649581219168821)]
[(0,0.19667592859142491),-0.76095631677000497),-0.50806745810016662)]
[(0,0.089926399724463771),-0.7241860626752511),0.40898973155376317)]
[(0,0.075858476521781085),-0.63205515860034334),0.5393533605733889)]
[(0,0.10150299184980124),-0.57373084830029542),-0.67093385852959064)]
[(0,0.70321089393783143),0.16115180214025732),0.18266089635241564)]
[(0,0.87747876731198304),0.16758906864659326),0.10880822642632952)]
[(0,0.90986246868185761),0.1408655362871892),-0.00087117874886778746)]
[(0,0.61658253505692784),-0.053929075663894419),-0.25568697959599318)]

我正在PC上运行Python 3.5.2,使用IntelliJ进行编码。

有人在使用Gensim库或其他地方遇到过这个问题吗?

解决方法

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