我一直试图解决这个问题几个小时,但似乎没有任何东西改变了function_score衰减函数的返回值。它总是只有1个。看起来它无法获取我指定的字段的整数?
数据模型看起来像这样(显然是假的):
{
"basics": {
"name": "Mr Augustus Flybynight (Jim)",
"name_pref": "Jim",
"location": {
"city": "Melbourne",
"postalCode": "3040",
"meta": {
"country": "Australia"
},
"region": "VIC",
"address": "iytiytiyt, tyiuyti"
},
"email": "augustus.flybynight2@gmail.com",
"applicantNumber": "11882",
"name_first": "Augustus",
"meta": {
"alternateContact": "",
"lastModified": 1473353751,
"alternateName": "",
"notificationType": "-1",
"alternatePhones": [
],
"gender": "M"
},
"name_last": "Flybynight",
"phone": "44556677"
}
}
我有3个这个实体的副本,唯一的区别是他们的时间戳(basics.meta.lastModified)。我正在尝试创建一个“更接近更好”的功能分数,以便最新的功能达到顶峰。我们还没有将时间戳映射为日期,但它被映射为整数。
尝试使用以下
进行查询时{
"query": {
"function_score": {
"functions": [
{
"gauss": {
"basics.meta.lastModified": {
"origin": 1474868635, // now
"offset": 86400, // one day
"scale": 604800, // seven days
"decay": 0.5
}
},
"weight": 2
}
],
"query": {
"bool": {
"should": [
{
"match": {
"_all": "augustus flybynight"
}
},
{
"match": {
"basics.all_names.all_names_identifier_whitespace": {
"query": "augustus flybynight",
"boost": 2
}
}
},
{
"match": {
"basics.email.email_identifier_keyword": {
"query": "augustus flybynight",
"boost": 3
}
}
},
{
"match": {
"basics.applicantNumber.applicantNumber_identifier_keyword": {
"query": "augustus flybynight",
"boost": 3
}
}
},
{
"wildcard": {
"basics.email.email_identifier_keyword": {
"wildcard": "augustus flybynight*",
"boost": 2
}
}
},
{
"wildcard": {
"basics.all_names.all_names_identifier_whitespace": {
"wildcard": "augustus flybynight*"
}
}
}
],
"must": []
}
}
}
},
"size": 25,
"from": 0,
"min_score": 0.2
}
但是这总是为功能分数返回'1',然后乘以查询并且不影响它。这是最奇怪的事情。
在查看解释时,这是返回的内容:
{
"value": 1,
"description": "min of:",
"details": [
{
"value": 1,
"description": "product of:",
"details": [
{
"value": 1,
"description": "Function for field basics.meta.lastModified:",
"details": [
{
"value": 1,
"description": "max(0.0, ((2.0 - MIN[0.0])/2.0)",
"details": [
]
}
]
},
{
"value": 1,
"description": "weight",
"details": [
]
}
]
},
{
"value": 3.4028235e+38,
"description": "maxBoost",
"details": [
]
}
]
}
似乎'MIN [0.0]'是应该返回时间戳的部分,但它不是,而是返回0并使衰减函数始终为1.如果我使衰减参数更严格,如origin:0 ,offset:0,scale:1和decay:0.5,我希望function_score接近0,但它仍然是1.
请帮忙。我一直在尝试一切,似乎没有很多在线的例子。任何建议都会受到欢迎。
答案 0 :(得分:1)
对于那些遇到同样问题的人,我终于找到了罪魁祸首。
似乎有人没有正确设置映射,因为compute
属性被设置为嵌套类型,但因为它没有被填充(你认为这会引起一个问题)索引数据时?),当试图访问其中的数据时,它总是返回basics.meta
,因为它根本找不到属性的值。
所以是的,如果你遇到过这个问题,那么会彻底查看你的映射而不是像我一样浪费一整天:|