如何使用余弦指标来计算字典之间的相似度？
我有一个很长的字典列表：
river 4
ground: 1
journey: 1
longitude: 1
main: 1
world--four: 1
contrary: 1
cover: 1
delaware: 1
remarkable: 1
vast: 1
forty-five: 1
crookedest: 1
territories: 1
spread: 1
country: 1
longest: 1
fly: 1
atlantic: 1
crow: 1
supply: 1
seems: 1
idaho: 1
seaboard: 1
states: 1
ways: 1
degrees: 1
part: 1
twenty-eight: 1
pacific: 1
branch: 1
water: 1
considering: 1
six: 1
safe: 1
commonplace: 1
draws: 1
drainage-basin: 1
uses: 1
seventy-five: 1
slope--a: 1
missouri: 1
mississippi 3
area: 1
steamboats: 1
germany: 1
reading: 1
france: 1
proper: 1
fifty-four: 1
turkey: 1
exceptionally: 1
areas: 1
carries: 1
combined: 1
flats: 1
receives: 1
england: 1
italy: 1
scotland: 1
wales: 1
almost: 1
navigable: 1
austria: 1
region: 1
wide: 1
spain: 1
subordinate: 1
drainage-basin: 1
hundreds: 1
keels: 1
portugal: 1
water: 1
gulf: 1
ireland: 1
rivers: 1
valley: 1
fertile: 1
worth: 1
water 3
steamboats: 1
spread: 1
country: 1
states: 1
longitude: 1
fifty-four: 1
pacific: 1
vast: 1
subordinate: 1
carries: 1
keels: 1
flats: 1
supply: 1
receives: 1
atlantic: 1
forty-five: 1
river: 1
rivers: 1
idaho: 1
mississippi: 1
seaboard: 1
navigable: 1
discharges: 1
degrees: 1
twenty-eight: 1
drainage-basin: 1
hundreds: 1
st: 1
gulf: 1
draws: 1
delaware: 1
territories: 1
slope--a: 1
drainage-basin 2
area: 1
spread: 1
country: 1
states: 1
mississippi: 1
longitude: 1
france: 1
proper: 1
vast: 1
turkey: 1
forty-five: 1
areas: 1
combined: 1
germany: 1
exceptionally: 1
valley: 1
supply: 1
fertile: 1
atlantic: 1
italy: 1
river: 1
idaho: 1
wales: 1
almost: 1
seaboard: 1
spain: 1
austria: 1
region: 1
degrees: 1
twenty-eight: 1
wide: 1
england: 1
portugal: 1
water: 1
ireland: 1
pacific: 1
draws: 1
delaware: 1
territories: 1
scotland: 1
slope--a: 1
area 1
germany: 1
austria: 1
mississippi: 1
france: 1
proper: 1
england: 1
turkey: 1
exceptionally: 1
areas: 1
combined: 1
scotland: 1
italy: 1
spain: 1
wales: 1
almost: 1
fertile: 1
region: 1
wide: 1
drainage-basin: 1
portugal: 1
ireland: 1
valley: 1
journey 1
ground: 1
seems: 1
part: 1
cover: 1
crow: 1
crookedest: 1
six: 1
safe: 1
uses: 1
seventy-five: 1
river: 1
fly: 1
seems 1
ground: 1
journey: 1
part: 1
cover: 1
crow: 1
crookedest: 1
six: 1
safe: 1
uses: 1
seventy-five: 1
river: 1
fly: 1
states 1
spread: 1
country: 1
degrees: 1
longitude: 1
twenty-eight: 1
drainage-basin: 1
vast: 1
forty-five: 1
water: 1
seaboard: 1
pacific: 1
draws: 1
delaware: 1
territories: 1
atlantic: 1
supply: 1
slope--a: 1
river: 1
idaho: 1
slope--a 1
spread: 1
country: 1
states: 1
degrees: 1
longitude: 1
drainage-basin: 1
vast: 1
forty-five: 1
water: 1
seaboard: 1
pacific: 1
draws: 1
delaware: 1
territories: 1
atlantic: 1
supply: 1
twenty-eight: 1
river: 1
idaho: 1
remarkable 1
contrary: 1
river: 1
commonplace: 1
ways: 1
vast 1
spread: 1
country: 1
states: 1
degrees: 1
longitude: 1
twenty-eight: 1
drainage-basin: 1
pacific: 1
forty-five: 1
water: 1
seaboard: 1
draws: 1
delaware: 1
territories: 1
atlantic: 1
supply: 1
slope--a: 1
river: 1
idaho: 1
forty-five 1
spread: 1
longitude: 1
country: 1
states: 1
degrees: 1
slope--a: 1
drainage-basin: 1
vast: 1
pacific: 1
water: 1
seaboard: 1
draws: 1
delaware: 1
territories: 1
atlantic: 1
supply: 1
twenty-eight: 1
river: 1
idaho: 1
crookedest 1
ground: 1
journey: 1
seems: 1
part: 1
cover: 1
crow: 1
six: 1
safe: 1
uses: 1
seventy-five: 1
river: 1
fly: 1
carries 1
mississippi: 1
steamboats: 1
navigable: 1
fifty-four: 1
keels: 1
hundreds: 1
subordinate: 1
water: 1
gulf: 1
flats: 1
rivers: 1
receives: 1
germany 1
area: 1
austria: 1
mississippi: 1
france: 1
proper: 1
exceptionally: 1
turkey: 1
england: 1
areas: 1
combined: 1
scotland: 1
italy: 1
spain: 1
wales: 1
almost: 1
fertile: 1
region: 1
wide: 1
drainage-basin: 1
portugal: 1
ireland: 1
valley: 1
longest 1
main: 1
river: 1
world--four: 1
branch: 1
missouri: 1
considering: 1
flats 1
mississippi: 1
steamboats: 1
navigable: 1
carries: 1
fifty-four: 1
keels: 1
hundreds: 1
subordinate: 1
water: 1
gulf: 1
rivers: 1
receives: 1
supply 1
spread: 1
longitude: 1
country: 1
states: 1
degrees: 1
slope--a: 1
drainage-basin: 1
vast: 1
forty-five: 1
water: 1
seaboard: 1
pacific: 1
draws: 1
delaware: 1
territories: 1
atlantic: 1
twenty-eight: 1
river: 1
idaho: 1
receives 1
mississippi: 1
steamboats: 1
navigable: 1
carries: 1
fifty-four: 1
keels: 1
hundreds: 1
subordinate: 1
water: 1
gulf: 1
flats: 1
rivers: 1
crow 1
ground: 1
journey: 1
seems: 1
part: 1
cover: 1
crookedest: 1
six: 1
safe: 1
uses: 1
seventy-five: 1
river: 1
fly: 1
scotland 1
area: 1
germany: 1
austria: 1
mississippi: 1
france: 1
proper: 1
exceptionally: 1
turkey: 1
england: 1
areas: 1
combined: 1
spain: 1
italy: 1
wales: 1
almost: 1
fertile: 1
region: 1
wide: 1
drainage-basin: 1
portugal: 1
ireland: 1
valley: 1
country 1
spread: 1
idaho: 1
states: 1
degrees: 1
longitude: 1
twenty-eight: 1
drainage-basin: 1
vast: 1
forty-five: 1
water: 1
seaboard: 1
pacific: 1
draws: 1
delaware: 1
territories: 1
atlantic: 1
supply: 1
slope--a: 1
river: 1
thames 1
thirty-eight: 1
rhine: 1
lawrence: 1
twenty-five: 1
england 1
area: 1
germany: 1
austria: 1
mississippi: 1
france: 1
proper: 1
exceptionally: 1
turkey: 1
region: 1
areas: 1
combined: 1
scotland: 1
italy: 1
spain: 1
wales: 1
almost: 1
fertile: 1
wide: 1
drainage-basin: 1
portugal: 1
ireland: 1
valley: 1
navigable 1
mississippi: 1
steamboats: 1
carries: 1
fifty-four: 1
keels: 1
hundreds: 1
subordinate: 1
water: 1
gulf: 1
flats: 1
rivers: 1
receives: 1
austria 1
area: 1
germany: 1
mississippi: 1
france: 1
proper: 1
region: 1
turkey: 1
england: 1
areas: 1
combined: 1
exceptionally: 1
scotland: 1
italy: 1
spain: 1
wales: 1
almost: 1
fertile: 1
wide: 1
drainage-basin: 1
portugal: 1
ireland: 1
valley: 1
rhine 1
thirty-eight: 1
thames: 1
lawrence: 1
twenty-five: 1
part 1
ground: 1
journey: 1
seems: 1
cover: 1
crow: 1
crookedest: 1
six: 1
safe: 1
uses: 1
seventy-five: 1
river: 1
fly: 1
twenty-eight 1
spread: 1
country: 1
states: 1
degrees: 1
longitude: 1
drainage-basin: 1
vast: 1
forty-five: 1
water: 1
seaboard: 1
pacific: 1
draws: 1
delaware: 1
territories: 1
atlantic: 1
supply: 1
slope--a: 1
river: 1
idaho: 1
branch 1
main: 1
longest: 1
river: 1
world--four: 1
missouri: 1
considering: 1
hundreds 1
mississippi: 1
steamboats: 1
navigable: 1
carries: 1
fifty-four: 1
keels: 1
subordinate: 1
water: 1
gulf: 1
flats: 1
rivers: 1
receives: 1
st 1
water: 1
discharges: 1
considering 1
main: 1
longest: 1
river: 1
world--four: 1
branch: 1
missouri: 1
six 1
ground: 1
journey: 1
seems: 1
part: 1
cover: 1
crow: 1
crookedest: 1
fly: 1
safe: 1
uses: 1
seventy-five: 1
river: 1
gulf 1
mississippi: 1
steamboats: 1
navigable: 1
carries: 1
fifty-four: 1
keels: 1
hundreds: 1
subordinate: 1
water: 1
flats: 1
rivers: 1
receives: 1
ireland 1
area: 1
germany: 1
austria: 1
mississippi: 1
france: 1
proper: 1
exceptionally: 1
turkey: 1
england: 1
areas: 1
combined: 1
scotland: 1
italy: 1
spain: 1
wales: 1
almost: 1
fertile: 1
region: 1
wide: 1
drainage-basin: 1
portugal: 1
valley: 1
safe 1
ground: 1
journey: 1
seems: 1
part: 1
cover: 1
crow: 1
crookedest: 1
six: 1
uses: 1
seventy-five: 1
river: 1
fly: 1
commonplace 1
contrary: 1
river: 1
remarkable: 1
ways: 1
draws 1
spread: 1
longitude: 1
country: 1
states: 1
degrees: 1
slope--a: 1
drainage-basin: 1
vast: 1
forty-five: 1
water: 1
seaboard: 1
pacific: 1
supply: 1
delaware: 1
territories: 1
atlantic: 1
twenty-eight: 1
river: 1
idaho: 1
delaware 1
spread: 1
longitude: 1
country: 1
states: 1
degrees: 1
slope--a: 1
drainage-basin: 1
vast: 1
forty-five: 1
water: 1
seaboard: 1
pacific: 1
draws: 1
territories: 1
atlantic: 1
supply: 1
twenty-eight: 1
river: 1
idaho: 1
thirty-eight 1
thames: 1
rhine: 1
lawrence: 1
twenty-five: 1
longitude 1
spread: 1
country: 1
states: 1
degrees: 1
slope--a: 1
drainage-basin: 1
vast: 1
forty-five: 1
water: 1
seaboard: 1
pacific: 1
draws: 1
delaware: 1
territories: 1
atlantic: 1
supply: 1
twenty-eight: 1
river: 1
idaho: 1
world--four 1
main: 1
longest: 1
river: 1
branch: 1
missouri: 1
considering: 1
lawrence 1
thirty-eight: 1
thames: 1
rhine: 1
twenty-five: 1
ground 1
journey: 1
seems: 1
part: 1
cover: 1
crow: 1
crookedest: 1
six: 1
safe: 1
uses: 1
seventy-five: 1
river: 1
fly: 1
steamboats 1
mississippi: 1
navigable: 1
carries: 1
fifty-four: 1
keels: 1
hundreds: 1
subordinate: 1
water: 1
gulf: 1
flats: 1
rivers: 1
receives: 1
spread 1
seaboard: 1
country: 1
states: 1
degrees: 1
longitude: 1
twenty-eight: 1
drainage-basin: 1
vast: 1
forty-five: 1
water: 1
pacific: 1
draws: 1
delaware: 1
territories: 1
atlantic: 1
supply: 1
slope--a: 1
river: 1
idaho: 1
idaho 1
spread: 1
country: 1
states: 1
degrees: 1
longitude: 1
twenty-eight: 1
drainage-basin: 1
vast: 1
forty-five: 1
water: 1
seaboard: 1
pacific: 1
draws: 1
delaware: 1
territories: 1
atlantic: 1
supply: 1
slope--a: 1
river: 1
reading 1
mississippi: 1
worth: 1
almost 1
area: 1
germany: 1
austria: 1
france: 1
proper: 1
england: 1
turkey: 1
exceptionally: 1
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scotland: 1
italy: 1
spain: 1
wales: 1
mississippi: 1
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river: 1
fly: 1
france 1
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austria: 1
mississippi: 1
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england: 1
turkey: 1
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italy: 1
spain: 1
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almost: 1
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wide: 1
drainage-basin: 1
portugal: 1
ireland: 1
valley: 1
spain 1
area: 1
germany: 1
austria: 1
mississippi: 1
france: 1
proper: 1
exceptionally: 1
turkey: 1
england: 1
areas: 1
combined: 1
scotland: 1
italy: 1
wales: 1
almost: 1
fertile: 1
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wide: 1
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portugal: 1
ireland: 1
valley: 1
pacific 1
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longitude: 1
country: 1
states: 1
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slope--a: 1
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water: 1
seaboard: 1
draws: 1
delaware: 1
territories: 1
atlantic: 1
supply: 1
twenty-eight: 1
river: 1
idaho: 1
turkey 1
area: 1
germany: 1
austria: 1
mississippi: 1
france: 1
proper: 1
exceptionally: 1
england: 1
areas: 1
combined: 1
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spain: 1
wales: 1
almost: 1
fertile: 1
region: 1
wide: 1
drainage-basin: 1
portugal: 1
ireland: 1
valley: 1
fifty-four 1
mississippi: 1
steamboats: 1
navigable: 1
carries: 1
hundreds: 1
keels: 1
subordinate: 1
water: 1
gulf: 1
flats: 1
rivers: 1
receives: 1
subordinate 1
mississippi: 1
steamboats: 1
navigable: 1
carries: 1
fifty-four: 1
keels: 1
hundreds: 1
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gulf: 1
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river: 1
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mississippi: 1
france: 1
proper: 1
exceptionally: 1
turkey: 1
england: 1
areas: 1
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almost: 1
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twenty-five 1
thirty-eight: 1
thames: 1
lawrence: 1
rhine: 1
rivers 1
mississippi: 1
steamboats: 1
navigable: 1
carries: 1
fifty-four: 1
keels: 1
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water: 1
gulf: 1
flats: 1
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fly 1
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part: 1
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crow: 1
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river: 1
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mississippi: 1
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proper: 1
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ireland: 1
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proper 1
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austria: 1
mississippi: 1
france: 1
england: 1
turkey: 1
exceptionally: 1
areas: 1
combined: 1
scotland: 1
italy: 1
spain: 1
wales: 1
almost: 1
fertile: 1
region: 1
wide: 1
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portugal: 1
ireland: 1
valley: 1
keels 1
mississippi: 1
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water: 1
fifty-four: 1
hundreds: 1
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carries: 1
gulf: 1
flats: 1
rivers: 1
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mississippi: 1
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ireland: 1
missouri 1
main: 1
longest: 1
river: 1
branch: 1
world--four: 1
considering: 1
wales 1
area: 1
germany: 1
austria: 1
mississippi: 1
france: 1
proper: 1
exceptionally: 1
turkey: 1
england: 1
areas: 1
combined: 1
scotland: 1
italy: 1
spain: 1
almost: 1
fertile: 1
region: 1
wide: 1
drainage-basin: 1
portugal: 1
ireland: 1
valley: 1
我希望使用余弦度量方法计算字典之间的相似度：
其中p和q是字典的关键我猜。而且我还想添加一个函数，当你输入单词时，它会找到字典并按降序返回其他字典的相似性。期望的相似性输出是：
Enter conceptword (or blank line to end): river
river
water 0.489
mississippi 0.052
spain 0.033
cairo 0.000
Synonym for river is water
任何人都可以提供帮助或提供解决方案，或者告诉他们如何提取共享的单词＆＃39;计算的价值？感谢。
1 个答案:
答案 0 :(得分：0)
我对您的问题设置并不完全确定，但我想这可以帮助您入门。假设您的词典集合是这样的：
import math
dict_list = {
"water": {
"ground": 1,
"journey": 1,
"longitude": 1,
"main": 1,
"contrary": 1,
"cover": 1,
"delaware": 1,
"remarkable": 1
},
"mississippi": {
"main": 1,
"contrary": 1,
"cover": 1,
"delaware": 1,
"remarkable": 1,
"steamboats": 1,
"germany": 1
}
}
如果要将余弦规则应用于它们，则需要设置向量，以显示两个词典中出现的每个单词的出现（即，如果它出现在一个词汇中，而另一个词汇出现在另一个词汇表中则需要为零。 ）：
def setup_vec(dict1, dict2):
dict1_missing = list(set(dict2.keys() - set(dict1.keys())))
dict2_missing = list(set(dict1.keys() - set(dict2.keys())))
for i in dict1_missing:
dict1[i] = 0
for i in dict2_missing:
dict2[i] = 0
vec1 = []
vec2 = []
for i in dict1.keys():
vec1.append(dict1[i])
vec2.append(dict2[i])
return([vec1, vec2])
请注意，矢量元素的顺序很重要。如果你用＆＃34; water＆＃34;和＆＃34;密西西比＆＃34;你得到：
[[1, 1, 1, 1, 1, 1, 1, 1, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 1, 1]]
之后，您只需要应用规则：
def dot_prod(p, q):
return sum([p[x]*q[x] for x in range(0, len(p))])
def norm(p):
return math.sqrt(dot_prod(p, p))
def cosine_metric(p, q):
return dot_prod(p, q)/(norm(p) * norm(q))
和针对所有其他字典计算给定字典的函数：
def find_dict(word):
if word in dict_list.keys():
for other_dicts in dict_list.keys():
if other_dicts != word:
vecs = setup_vec(dict_list[word], dict_list[other_dicts])
print(other_dicts + " " + str(cosine_metric(vecs[0], vecs[1])))
这里的结果是：
find_dict('water')
0.6681531047810609
剩下的任务是订购输出，这不应该很难。
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