Thanks for the reply Mike. I think that was what was causing the issue. I
discovered the effect after I
bumped up the numbers a bit. Here's what I see now.
Index time boost My Custom Similarity Default Similarity
Doc 1133226.63 131072 121359
Doc 2 123194.06 114688 106189
The difference between the results is because I am ignoring the length Norm
(changed it
from ((float)(1.0 / Math.sqrt(numTerms) to 1.0f). Thanks once again.
Mike Klaas wrote:
>
> On 3/28/07, escher2k <[EMAIL PROTECTED]> wrote:
>>
>> Mike,
>> I am not doing anything custom for this test. I am assuming that the
>> Default Similarity is used.
>> Surprisingly, if I remove the document level boost (set to 1.0) and just
>> have a field level boost, the result
>> seems to be correct.
>
> Another detail that I forgot to mention is that fieldNorms are encoded
> into one-byte floats, so you can experience severe rounding errors.
> The possible values are:
>
> 0 0.0
> 1 5.820766E-10
> 2 6.9849193E-10
> 3 8.1490725E-10
> 4 9.313226E-10
> 5 1.1641532E-9
> 6 1.3969839E-9
> 7 1.6298145E-9
> 8 1.8626451E-9
> 9 2.3283064E-9
> 10 2.7939677E-9
> 11 3.259629E-9
> 12 3.7252903E-9
> 13 4.656613E-9
> 14 5.5879354E-9
> 15 6.519258E-9
> 16 7.4505806E-9
> 17 9.313226E-9
> 18 1.1175871E-8
> 19 1.3038516E-8
> 20 1.4901161E-8
> 21 1.8626451E-8
> 22 2.2351742E-8
> 23 2.6077032E-8
> 24 2.9802322E-8
> 25 3.7252903E-8
> 26 4.4703484E-8
> 27 5.2154064E-8
> 28 5.9604645E-8
> 29 7.4505806E-8
> 30 8.940697E-8
> 31 1.0430813E-7
> 32 1.1920929E-7
> 33 1.4901161E-7
> 34 1.7881393E-7
> 35 2.0861626E-7
> 36 2.3841858E-7
> 37 2.9802322E-7
> 38 3.5762787E-7
> 39 4.172325E-7
> 40 4.7683716E-7
> 41 5.9604645E-7
> 42 7.1525574E-7
> 43 8.34465E-7
> 44 9.536743E-7
> 45 1.1920929E-6
> 46 1.4305115E-6
> 47 1.66893E-6
> 48 1.9073486E-6
> 49 2.3841858E-6
> 50 2.861023E-6
> 51 3.33786E-6
> 52 3.8146973E-6
> 53 4.7683716E-6
> 54 5.722046E-6
> 55 6.67572E-6
> 56 7.6293945E-6
> 57 9.536743E-6
> 58 1.1444092E-5
> 59 1.335144E-5
> 60 1.5258789E-5
> 61 1.9073486E-5
> 62 2.2888184E-5
> 63 2.670288E-5
> 64 3.0517578E-5
> 65 3.8146973E-5
> 66 4.5776367E-5
> 67 5.340576E-5
> 68 6.1035156E-5
> 69 7.6293945E-5
> 70 9.1552734E-5
> 71 1.0681152E-4
> 72 1.2207031E-4
> 73 1.5258789E-4
> 74 1.8310547E-4
> 75 2.1362305E-4
> 76 2.4414062E-4
> 77 3.0517578E-4
> 78 3.6621094E-4
> 79 4.272461E-4
> 80 4.8828125E-4
> 81 6.1035156E-4
> 82 7.324219E-4
> 83 8.544922E-4
> 84 9.765625E-4
> 85 0.0012207031
> 86 0.0014648438
> 87 0.0017089844
> 88 0.001953125
> 89 0.0024414062
> 90 0.0029296875
> 91 0.0034179688
> 92 0.00390625
> 93 0.0048828125
> 94 0.005859375
> 95 0.0068359375
> 96 0.0078125
> 97 0.009765625
> 98 0.01171875
> 99 0.013671875
> 100 0.015625
> 101 0.01953125
> 102 0.0234375
> 103 0.02734375
> 104 0.03125
> 105 0.0390625
> 106 0.046875
> 107 0.0546875
> 108 0.0625
> 109 0.078125
> 110 0.09375
> 111 0.109375
> 112 0.125
> 113 0.15625
> 114 0.1875
> 115 0.21875
> 116 0.25
> 117 0.3125
> 118 0.375
> 119 0.4375
> 120 0.5
> 121 0.625
> 122 0.75
> 123 0.875
> 124 1.0
> 125 1.25
> 126 1.5
> 127 1.75
> 128 2.0
> 129 2.5
> 130 3.0
> 131 3.5
> 132 4.0
> 133 5.0
> 134 6.0
> 135 7.0
> 136 8.0
> 137 10.0
> 138 12.0
> 139 14.0
> 140 16.0
> 141 20.0
> 142 24.0
> 143 28.0
> 144 32.0
> 145 40.0
> 146 48.0
> 147 56.0
> 148 64.0
> 149 80.0
> 150 96.0
> 151 112.0
> 152 128.0
> 153 160.0
> 154 192.0
> 155 224.0
> 156 256.0
> 157 320.0
> 158 384.0
> 159 448.0
> 160 512.0
> 161 640.0
> 162 768.0
> 163 896.0
> 164 1024.0
> 165 1280.0
> 166 1536.0
> 167 1792.0
> 168 2048.0
> 169 2560.0
> 170 3072.0
> 171 3584.0
> 172 4096.0
> 173 5120.0
> 174 6144.0
> 175 7168.0
> 176 8192.0
> 177 10240.0
> 178 12288.0
> 179 14336.0
> 180 16384.0
> 181 20480.0
> 182 24576.0
> 183 28672.0
> 184 32768.0
> 185 40960.0
> 186 49152.0
> 187 57344.0
> 188 65536.0
> 189 81920.0
> 190 98304.0
> 191 114688.0
> 192 131072.0
> 193 163840.0
> 194 196608.0
> 195 229376.0
> 196 262144.0
> 197 327680.0
> 198 393216.0
> 199 458752.0
> 200 524288.0
> 201 655360.0
> 202 786432.0
> 203 917504.0
> 204 1048576.0
> 205 1310720.0
> 206 1572864.0
> 207 1835008.0
> 208 2097152.0
> 209 2621440.0
> 210 3145728.0
> 211 3670016.0
> 212 4194304.0
> 213 5242880.0
> 214 6291456.0
> 215 7340032.0
> 216 8388608.0
> 217 1.048576E7
> 218 1.2582912E7
> 219 1.4680064E7
> 220 1.6777216E7
> 221 2.097152E7
> 222 2.5165824E7
> 223 2.9360128E7
> 224 3.3554432E7
> 225 4.194304E7
> 226 5.0331648E7
> 227 5.8720256E7
> 228 6.7108864E7
> 229 8.388608E7
> 230 1.00663296E8
> 231 1.17440512E8
> 232 1.34217728E8
> 233 1.6777216E8
> 234 2.01326592E8
> 235 2.34881024E8
> 236 2.68435456E8
> 237 3.3554432E8
> 238 4.02653184E8
> 239 4.69762048E8
> 240 5.3687091E8
> 241 6.7108864E8
> 242 8.0530637E8
> 243 9.395241E8
> 244 1.07374182E9
> 245 1.34217728E9
> 246 1.61061274E9
> 247 1.87904819E9
> 248 2.14748365E9
> 249 2.68435456E9
> 250 3.22122547E9
> 251 3.75809638E9
> 252 4.2949673E9
> 253 5.3687091E9
> 254 6.4424509E9
> 255 7.5161928E9
>
>
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