1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
#include "testing/testing.hpp"
#include "search/cbv.hpp"
#include "search/geocoder_context.hpp"
#include "search/locality_scorer.hpp"
#include "indexer/search_delimiters.hpp"
#include "indexer/search_string_utils.hpp"
#include "coding/compressed_bit_vector.hpp"
#include "base/assert.hpp"
#include "base/mem_trie.hpp"
#include "base/stl_helpers.hpp"
#include "base/string_utils.hpp"
#include <algorithm>
#include <set>
#include <unordered_map>
#include <vector>
using namespace search;
using namespace std;
using namespace strings;
namespace
{
class LocalityScorerTest : public LocalityScorer::Delegate
{
public:
using Ids = vector<uint32_t>;
LocalityScorerTest() : m_scorer(m_params, static_cast<LocalityScorer::Delegate &>(*this)) {}
void InitParams(string const & query, bool lastTokenIsPrefix)
{
m_params.Clear();
vector<UniString> tokens;
Delimiters delims;
SplitUniString(NormalizeAndSimplifyString(query), base::MakeBackInsertFunctor(tokens), delims);
if (lastTokenIsPrefix)
{
CHECK(!tokens.empty(), ());
m_params.InitWithPrefix(tokens.begin(), tokens.end() - 1, tokens.back());
}
else
{
m_params.InitNoPrefix(tokens.begin(), tokens.end());
}
}
void AddLocality(string const & name, uint32_t featureId, uint8_t rank = 0)
{
set<UniString> tokens;
Delimiters delims;
SplitUniString(NormalizeAndSimplifyString(name), base::MakeInsertFunctor(tokens), delims);
for (auto const & token : tokens)
m_searchIndex.Add(token, featureId);
m_names[featureId].push_back(name);
m_ranks[featureId] = rank;
}
Ids GetTopLocalities(size_t limit)
{
BaseContext ctx;
ctx.m_tokens.assign(m_params.GetNumTokens(), BaseContext::TOKEN_TYPE_COUNT);
ctx.m_numTokens = m_params.GetNumTokens();
for (size_t i = 0; i < m_params.GetNumTokens(); ++i)
{
auto const & token = m_params.GetToken(i);
bool const isPrefixToken = m_params.IsPrefixToken(i);
vector<uint64_t> ids;
token.ForEach([&](UniString const & name) {
if (isPrefixToken)
{
m_searchIndex.ForEachInSubtree(name,
[&](UniString const & /* prefix */, uint32_t featureId) {
ids.push_back(featureId);
});
}
else
{
m_searchIndex.ForEachInNode(name, [&](uint32_t featureId) { ids.push_back(featureId); });
}
});
base::SortUnique(ids);
ctx.m_features.emplace_back(coding::CompressedBitVectorBuilder::FromBitPositions(ids));
}
CBV filter;
filter.SetFull();
vector<Locality> localities;
m_scorer.GetTopLocalities(MwmSet::MwmId(), ctx, filter, limit, localities);
sort(localities.begin(), localities.end(), base::LessBy(&Locality::m_featureId));
Ids ids;
for (auto const & locality : localities)
ids.push_back(locality.m_featureId);
return ids;
}
// LocalityScorer::Delegate overrides:
void GetNames(uint32_t featureId, vector<string> & names) const override
{
auto it = m_names.find(featureId);
if (it != m_names.end())
names.insert(names.end(), it->second.begin(), it->second.end());
}
uint8_t GetRank(uint32_t featureId) const override
{
auto it = m_ranks.find(featureId);
return it == m_ranks.end() ? 0 : it->second;
}
protected:
QueryParams m_params;
unordered_map<uint32_t, vector<string>> m_names;
unordered_map<uint32_t, uint8_t> m_ranks;
LocalityScorer m_scorer;
base::MemTrie<UniString, base::VectorValues<uint32_t>> m_searchIndex;
};
} // namespace
UNIT_CLASS_TEST(LocalityScorerTest, Smoke)
{
enum
{
ID_NEW_ORLEANS,
ID_YORK,
ID_NEW_YORK,
};
InitParams("New York Time Square", false /* lastTokenIsPrefix */);
AddLocality("New Orleans", ID_NEW_ORLEANS);
AddLocality("York", ID_YORK);
AddLocality("New York", ID_NEW_YORK);
TEST_EQUAL(GetTopLocalities(100 /* limit */), Ids({ID_NEW_ORLEANS, ID_YORK, ID_NEW_YORK}), ());
TEST_EQUAL(GetTopLocalities(2 /* limit */), Ids({ID_YORK, ID_NEW_YORK}), ());
TEST_EQUAL(GetTopLocalities(1 /* limit */), Ids({ID_YORK}), ());
}
UNIT_CLASS_TEST(LocalityScorerTest, NumbersMatch)
{
enum
{
ID_MARCH,
ID_APRIL,
ID_MAY,
ID_TVER
};
InitParams("тверь советская 1", false /* lastTokenIsPrefix */);
AddLocality("поселок 1 марта", ID_MARCH);
AddLocality("поселок 1 апреля", ID_APRIL);
AddLocality("поселок 1 мая", ID_MAY);
AddLocality("тверь", ID_TVER);
// Tver is the only matched locality as other localities were
// matched only by number.
TEST_EQUAL(GetTopLocalities(100 /* limit */), Ids({ID_TVER}), ());
TEST_EQUAL(GetTopLocalities(1 /* limit */), Ids({ID_TVER}), ());
}
UNIT_CLASS_TEST(LocalityScorerTest, NumbersComplexMatch)
{
enum
{
ID_MAY,
ID_SAINT_PETERSBURG
};
InitParams("saint petersburg may 1", false /* lastTokenIsPrefix */);
AddLocality("may 1", ID_MAY);
AddLocality("saint petersburg", ID_SAINT_PETERSBURG);
TEST_EQUAL(GetTopLocalities(2 /* limit */), Ids({ID_MAY, ID_SAINT_PETERSBURG}), ());
TEST_EQUAL(GetTopLocalities(1 /* limit */), Ids({ID_MAY}), ());
}
UNIT_CLASS_TEST(LocalityScorerTest, PrefixMatch)
{
enum
{
ID_SAN_ANTONIO,
ID_NEW_YORK,
ID_YORK,
ID_MOSCOW
};
InitParams("New York San Anto", true /* lastTokenIsPrefix */);
AddLocality("San Antonio", ID_SAN_ANTONIO);
AddLocality("New York", ID_NEW_YORK);
AddLocality("York", ID_YORK);
AddLocality("Moscow", ID_MOSCOW);
// All localities except Moscow match to the search query.
TEST_EQUAL(GetTopLocalities(100 /* limit */), Ids({ID_SAN_ANTONIO, ID_NEW_YORK, ID_YORK}), ());
TEST_EQUAL(GetTopLocalities(2 /* limit */), Ids({ID_SAN_ANTONIO, ID_NEW_YORK}), ());
TEST_EQUAL(GetTopLocalities(1 /* limit */), Ids({ID_SAN_ANTONIO}), ());
}
UNIT_CLASS_TEST(LocalityScorerTest, Ranks)
{
enum
{
ID_SAN_MARINO,
ID_SAN_ANTONIO,
ID_SAN_FRANCISCO
};
AddLocality("San Marino", ID_SAN_MARINO, 10 /* rank */);
AddLocality("Citta di San Antonio", ID_SAN_ANTONIO, 20 /* rank */);
AddLocality("San Francisco", ID_SAN_FRANCISCO, 30 /* rank */);
InitParams("San", false /* lastTokenIsPrefix */);
TEST_EQUAL(GetTopLocalities(100 /* limit */),
Ids({ID_SAN_MARINO, ID_SAN_ANTONIO, ID_SAN_FRANCISCO}), ());
TEST_EQUAL(GetTopLocalities(2 /* limit */), Ids({ID_SAN_MARINO, ID_SAN_FRANCISCO}), ());
TEST_EQUAL(GetTopLocalities(1 /* limit */), Ids({ID_SAN_FRANCISCO}), ());
}
|
