The relation between threshold, weight and matching degree is also discussed. In order to make the querying friendlier, the method to avoid returning null set and corpora is also presented.
研究了权重、阈值和匹配度之间的关系，提出了避免查询结果为空集或全集的方法，使得查询更加人性化。
If the form input field is not null, set the payload you receive as the widget value, as shown in Listing 14.
如果表单输入字段不为空，将小部件的值设为接收到的负载，如清单14所示。
If the form input field is not null, set the payload you receive as the widget value, as shown in Listing 14.
如果表单输入字段不为空，将小部件的值设为接收到的负载，如清单14所示。
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