2017-02-23 06:26:44 +08:00
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< li class = "navelem" > < a class = "el" href = "namespacefaiss.html" > faiss< / a > < / li > < li class = "navelem" > < a class = "el" href = "structfaiss_1_1OPQMatrix.html" > OPQMatrix< / a > < / li > < / ul >
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< a href = "#pub-methods" > Public Member Functions< / a > |
< a href = "#pub-attribs" > Public Attributes< / a > |
< a href = "structfaiss_1_1OPQMatrix-members.html" > List of all members< / a > < / div >
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< div class = "title" > faiss::OPQMatrix Struct Reference< / div > < / div >
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< p > < code > #include < < a class = "el" href = "VectorTransform_8h_source.html" > VectorTransform.h< / a > > < / code > < / p >
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Inheritance diagram for faiss::OPQMatrix:< / div >
< div class = "dyncontent" >
< div class = "center" >
< img src = "structfaiss_1_1OPQMatrix.png" usemap = "#faiss::OPQMatrix_map" alt = "" / >
< map id = "faiss::OPQMatrix_map" name = "faiss::OPQMatrix_map" >
< area href = "structfaiss_1_1LinearTransform.html" alt = "faiss::LinearTransform" shape = "rect" coords = "0,56,139,80" / >
< area href = "structfaiss_1_1VectorTransform.html" alt = "faiss::VectorTransform" shape = "rect" coords = "0,0,139,24" / >
< / map >
< / div > < / div >
< table class = "memberdecls" >
< tr class = "heading" > < td colspan = "2" > < h2 class = "groupheader" > < a name = "pub-methods" > < / a >
Public Member Functions< / h2 > < / td > < / tr >
< tr class = "memitem:a6eb9d18ff15b1c598d3aa3bc9ab84519" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "a6eb9d18ff15b1c598d3aa3bc9ab84519" > < / a >
  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1OPQMatrix.html#a6eb9d18ff15b1c598d3aa3bc9ab84519" > OPQMatrix< / a > (int d=0, int < a class = "el" href = "structfaiss_1_1OPQMatrix.html#a07ad0c0c84f96a6880c1c8eaf09596e3" > M< / a > =1, int d2=-1)< / td > < / tr >
< tr class = "memdesc:a6eb9d18ff15b1c598d3aa3bc9ab84519" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > if d2 != -1, output vectors of this dimension < br / > < / td > < / tr >
< tr class = "separator:a6eb9d18ff15b1c598d3aa3bc9ab84519" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a1e314577db0c6cd4a709503f73eb71e2" > < td class = "memItemLeft" align = "right" valign = "top" > virtual void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1OPQMatrix.html#a1e314577db0c6cd4a709503f73eb71e2" > train< / a > (< a class = "el" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > Index::idx_t< / a > n, const float *x) override< / td > < / tr >
< tr class = "separator:a1e314577db0c6cd4a709503f73eb71e2" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a8e61a84ea6bcbdee1809028b6aaa3aae" > < td class = "memItemLeft" align = "right" valign = "top" > virtual void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1OPQMatrix.html#a8e61a84ea6bcbdee1809028b6aaa3aae" > reverse_transform< / a > (idx_t n, const float *xt, float *x) const override< / td > < / tr >
< tr class = "separator:a8e61a84ea6bcbdee1809028b6aaa3aae" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "inherit_header pub_methods_structfaiss_1_1LinearTransform" > < td colspan = "2" onclick = "javascript:toggleInherit('pub_methods_structfaiss_1_1LinearTransform')" > < img src = "closed.png" alt = "-" / >   Public Member Functions inherited from < a class = "el" href = "structfaiss_1_1LinearTransform.html" > faiss::LinearTransform< / a > < / td > < / tr >
< tr class = "memitem:a2fffd6064defb7c3fdaf143c0c4a9bc7 inherit pub_methods_structfaiss_1_1LinearTransform" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "a2fffd6064defb7c3fdaf143c0c4a9bc7" > < / a >
  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1LinearTransform.html#a2fffd6064defb7c3fdaf143c0c4a9bc7" > LinearTransform< / a > (int d_in=0, int < a class = "el" href = "structfaiss_1_1VectorTransform.html#a589d612f7b1773614619a0cbecd728a9" > d_out< / a > =0, bool have_bias=false)< / td > < / tr >
< tr class = "memdesc:a2fffd6064defb7c3fdaf143c0c4a9bc7 inherit pub_methods_structfaiss_1_1LinearTransform" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > both d_in > d_out and d_out < d_in are supported < br / > < / td > < / tr >
< tr class = "separator:a2fffd6064defb7c3fdaf143c0c4a9bc7 inherit pub_methods_structfaiss_1_1LinearTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ab1467253297ce7a3838a71769b3c86aa inherit pub_methods_structfaiss_1_1LinearTransform" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "ab1467253297ce7a3838a71769b3c86aa" > < / a >
virtual void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1LinearTransform.html#ab1467253297ce7a3838a71769b3c86aa" > apply_noalloc< / a > (idx_t n, const float *x, float *xt) const < / td > < / tr >
< tr class = "memdesc:ab1467253297ce7a3838a71769b3c86aa inherit pub_methods_structfaiss_1_1LinearTransform" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > same as apply, but result is pre-allocated < br / > < / td > < / tr >
< tr class = "separator:ab1467253297ce7a3838a71769b3c86aa inherit pub_methods_structfaiss_1_1LinearTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a1642efca4f5eb524c29722b0441c4d13 inherit pub_methods_structfaiss_1_1LinearTransform" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1LinearTransform.html#a1642efca4f5eb524c29722b0441c4d13" > transform_transpose< / a > (idx_t n, const float *y, float *x) const < / td > < / tr >
< tr class = "separator:a1642efca4f5eb524c29722b0441c4d13 inherit pub_methods_structfaiss_1_1LinearTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a31ba129dc0a719d5bec4656e2cf1f365 inherit pub_methods_structfaiss_1_1LinearTransform" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "a31ba129dc0a719d5bec4656e2cf1f365" > < / a >
const float *  < / td > < td class = "memItemRight" valign = "bottom" > < b > maybe_subsample_train_set< / b > (< a class = "el" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > Index::idx_t< / a > *n, const float *x)< / td > < / tr >
< tr class = "separator:a31ba129dc0a719d5bec4656e2cf1f365 inherit pub_methods_structfaiss_1_1LinearTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "inherit_header pub_methods_structfaiss_1_1VectorTransform" > < td colspan = "2" onclick = "javascript:toggleInherit('pub_methods_structfaiss_1_1VectorTransform')" > < img src = "closed.png" alt = "-" / >   Public Member Functions inherited from < a class = "el" href = "structfaiss_1_1VectorTransform.html" > faiss::VectorTransform< / a > < / td > < / tr >
< tr class = "memitem:a137f48bab695736f0b1d79a50cddc858 inherit pub_methods_structfaiss_1_1VectorTransform" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "a137f48bab695736f0b1d79a50cddc858" > < / a >
  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1VectorTransform.html#a137f48bab695736f0b1d79a50cddc858" > VectorTransform< / a > (int d_in=0, int < a class = "el" href = "structfaiss_1_1VectorTransform.html#a589d612f7b1773614619a0cbecd728a9" > d_out< / a > =0)< / td > < / tr >
< tr class = "memdesc:a137f48bab695736f0b1d79a50cddc858 inherit pub_methods_structfaiss_1_1VectorTransform" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > ! output dimension < br / > < / td > < / tr >
< tr class = "separator:a137f48bab695736f0b1d79a50cddc858 inherit pub_methods_structfaiss_1_1VectorTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:af3b3a8bf95911f4b28128001c83f91a5 inherit pub_methods_structfaiss_1_1VectorTransform" > < td class = "memItemLeft" align = "right" valign = "top" > float *  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1VectorTransform.html#af3b3a8bf95911f4b28128001c83f91a5" > apply< / a > (idx_t n, const float *x) const < / td > < / tr >
< tr class = "separator:af3b3a8bf95911f4b28128001c83f91a5 inherit pub_methods_structfaiss_1_1VectorTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< / table > < table class = "memberdecls" >
< tr class = "heading" > < td colspan = "2" > < h2 class = "groupheader" > < a name = "pub-attribs" > < / a >
Public Attributes< / h2 > < / td > < / tr >
< tr class = "memitem:a07ad0c0c84f96a6880c1c8eaf09596e3" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "a07ad0c0c84f96a6880c1c8eaf09596e3" > < / a >
int  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1OPQMatrix.html#a07ad0c0c84f96a6880c1c8eaf09596e3" > M< / a > < / td > < / tr >
< tr class = "memdesc:a07ad0c0c84f96a6880c1c8eaf09596e3" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > nb of subquantizers < br / > < / td > < / tr >
< tr class = "separator:a07ad0c0c84f96a6880c1c8eaf09596e3" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a12cb3e05989dee37592b682070c31000" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "a12cb3e05989dee37592b682070c31000" > < / a >
int  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1OPQMatrix.html#a12cb3e05989dee37592b682070c31000" > niter< / a > < / td > < / tr >
< tr class = "memdesc:a12cb3e05989dee37592b682070c31000" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Number of outer training iterations. < br / > < / td > < / tr >
< tr class = "separator:a12cb3e05989dee37592b682070c31000" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ab88c87a3931ec356904abf5f1f797a83" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "ab88c87a3931ec356904abf5f1f797a83" > < / a >
int  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1OPQMatrix.html#ab88c87a3931ec356904abf5f1f797a83" > niter_pq< / a > < / td > < / tr >
< tr class = "memdesc:ab88c87a3931ec356904abf5f1f797a83" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Number of training iterations for the PQ. < br / > < / td > < / tr >
< tr class = "separator:ab88c87a3931ec356904abf5f1f797a83" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a6406e97b05c831cc19b9343be3b43a1f" > < td class = "memItemLeft" align = "right" valign = "top" > int  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1OPQMatrix.html#a6406e97b05c831cc19b9343be3b43a1f" > niter_pq_0< / a > < / td > < / tr >
< tr class = "separator:a6406e97b05c831cc19b9343be3b43a1f" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a4c78b2247815c065ca3c76eec221cb49" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "a4c78b2247815c065ca3c76eec221cb49" > < / a >
int  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1OPQMatrix.html#a4c78b2247815c065ca3c76eec221cb49" > max_points_per_d< / a > < / td > < / tr >
< tr class = "memdesc:a4c78b2247815c065ca3c76eec221cb49" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > if there are too many training points, resample < br / > < / td > < / tr >
< tr class = "separator:a4c78b2247815c065ca3c76eec221cb49" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:abf181dd944511a81803abba538ecc4b5" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "abf181dd944511a81803abba538ecc4b5" > < / a >
bool  < / td > < td class = "memItemRight" valign = "bottom" > < b > verbose< / b > < / td > < / tr >
< tr class = "separator:abf181dd944511a81803abba538ecc4b5" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "inherit_header pub_attribs_structfaiss_1_1LinearTransform" > < td colspan = "2" onclick = "javascript:toggleInherit('pub_attribs_structfaiss_1_1LinearTransform')" > < img src = "closed.png" alt = "-" / >   Public Attributes inherited from < a class = "el" href = "structfaiss_1_1LinearTransform.html" > faiss::LinearTransform< / a > < / td > < / tr >
< tr class = "memitem:a322401ba80cb96ac1e7846401f2bef24 inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "a322401ba80cb96ac1e7846401f2bef24" > < / a >
bool  < / td > < td class = "memItemRight" valign = "bottom" > < b > have_bias< / b > < / td > < / tr >
< tr class = "separator:a322401ba80cb96ac1e7846401f2bef24 inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:aa40e156ef57fe206cd5f3a58ec0660da inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "memItemLeft" align = "right" valign = "top" > std::vector< float >   < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1LinearTransform.html#aa40e156ef57fe206cd5f3a58ec0660da" > A< / a > < / td > < / tr >
< tr class = "memdesc:aa40e156ef57fe206cd5f3a58ec0660da inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > ! whether to use the bias term < a href = "#aa40e156ef57fe206cd5f3a58ec0660da" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:aa40e156ef57fe206cd5f3a58ec0660da inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ab0383f690aeb823876e9143febad1a87 inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "ab0383f690aeb823876e9143febad1a87" > < / a >
std::vector< float >   < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1LinearTransform.html#ab0383f690aeb823876e9143febad1a87" > b< / a > < / td > < / tr >
< tr class = "memdesc:ab0383f690aeb823876e9143febad1a87 inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > bias vector, size d_out < br / > < / td > < / tr >
< tr class = "separator:ab0383f690aeb823876e9143febad1a87 inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:abbebe0ccad50091189a7dfdd476c89fc inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "abbebe0ccad50091189a7dfdd476c89fc" > < / a >
size_t  < / td > < td class = "memItemRight" valign = "bottom" > < b > max_points_per_d< / b > < / td > < / tr >
< tr class = "separator:abbebe0ccad50091189a7dfdd476c89fc inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ae351ccd1155b71ac9d2fbd8d11b7082a inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "ae351ccd1155b71ac9d2fbd8d11b7082a" > < / a >
bool  < / td > < td class = "memItemRight" valign = "bottom" > < b > verbose< / b > < / td > < / tr >
< tr class = "separator:ae351ccd1155b71ac9d2fbd8d11b7082a inherit pub_attribs_structfaiss_1_1LinearTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "inherit_header pub_attribs_structfaiss_1_1VectorTransform" > < td colspan = "2" onclick = "javascript:toggleInherit('pub_attribs_structfaiss_1_1VectorTransform')" > < img src = "closed.png" alt = "-" / >   Public Attributes inherited from < a class = "el" href = "structfaiss_1_1VectorTransform.html" > faiss::VectorTransform< / a > < / td > < / tr >
< tr class = "memitem:afdf56cbd261a571cf6b8872be5bd43b6 inherit pub_attribs_structfaiss_1_1VectorTransform" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "afdf56cbd261a571cf6b8872be5bd43b6" > < / a >
int  < / td > < td class = "memItemRight" valign = "bottom" > < b > d_in< / b > < / td > < / tr >
< tr class = "separator:afdf56cbd261a571cf6b8872be5bd43b6 inherit pub_attribs_structfaiss_1_1VectorTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a589d612f7b1773614619a0cbecd728a9 inherit pub_attribs_structfaiss_1_1VectorTransform" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "a589d612f7b1773614619a0cbecd728a9" > < / a >
int  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1VectorTransform.html#a589d612f7b1773614619a0cbecd728a9" > d_out< / a > < / td > < / tr >
< tr class = "memdesc:a589d612f7b1773614619a0cbecd728a9 inherit pub_attribs_structfaiss_1_1VectorTransform" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > ! input dimension < br / > < / td > < / tr >
< tr class = "separator:a589d612f7b1773614619a0cbecd728a9 inherit pub_attribs_structfaiss_1_1VectorTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ab511f1ddf608c00204555881ca28cb02 inherit pub_attribs_structfaiss_1_1VectorTransform" > < td class = "memItemLeft" align = "right" valign = "top" > bool  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "structfaiss_1_1VectorTransform.html#ab511f1ddf608c00204555881ca28cb02" > is_trained< / a > < / td > < / tr >
< tr class = "separator:ab511f1ddf608c00204555881ca28cb02 inherit pub_attribs_structfaiss_1_1VectorTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< / table > < table class = "memberdecls" >
< tr class = "heading" > < td colspan = "2" > < h2 class = "groupheader" > < a name = "inherited" > < / a >
Additional Inherited Members< / h2 > < / td > < / tr >
< tr class = "inherit_header pub_types_structfaiss_1_1VectorTransform" > < td colspan = "2" onclick = "javascript:toggleInherit('pub_types_structfaiss_1_1VectorTransform')" > < img src = "closed.png" alt = "-" / >   Public Types inherited from < a class = "el" href = "structfaiss_1_1VectorTransform.html" > faiss::VectorTransform< / a > < / td > < / tr >
< tr class = "memitem:a410516b4efdae041546d87f6bef2e422 inherit pub_types_structfaiss_1_1VectorTransform" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "anchor" id = "a410516b4efdae041546d87f6bef2e422" > < / a >
typedef < a class = "el" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > Index::idx_t< / a >   < / td > < td class = "memItemRight" valign = "bottom" > < b > idx_t< / b > < / td > < / tr >
< tr class = "separator:a410516b4efdae041546d87f6bef2e422 inherit pub_types_structfaiss_1_1VectorTransform" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< / table >
< a name = "details" id = "details" > < / a > < h2 class = "groupheader" > Detailed Description< / h2 >
< div class = "textblock" > < p > Applies a rotation to align the dimensions with a PQ to minimize the reconstruction error. Can be used before an < a class = "el" href = "structfaiss_1_1IndexPQ.html" > IndexPQ< / a > or an < a class = "el" href = "structfaiss_1_1IndexIVFPQ.html" > IndexIVFPQ< / a > . The method is the non-parametric version described in:< / p >
< p > "Optimized Product Quantization for Approximate Nearest Neighbor Search" Tiezheng Ge, Kaiming He, Qifa Ke, Jian Sun, CVPR'13 < / p >
< p > Definition at line < a class = "el" href = "VectorTransform_8h_source.html#l00188" > 188< / a > of file < a class = "el" href = "VectorTransform_8h_source.html" > VectorTransform.h< / a > .< / p >
< / div > < h2 class = "groupheader" > Member Function Documentation< / h2 >
< a class = "anchor" id = "a8e61a84ea6bcbdee1809028b6aaa3aae" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "mlabels" >
< tr >
< td class = "mlabels-left" >
< table class = "memname" >
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< td class = "memname" > void OPQMatrix::reverse_transform < / td >
< td > (< / td >
< td class = "paramtype" > idx_t  < / td >
< td class = "paramname" > < em > n< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > const float *  < / td >
< td class = "paramname" > < em > xt< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > float *  < / td >
< td class = "paramname" > < em > x< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > const< / td >
< / tr >
< / table >
< / td >
< td class = "mlabels-right" >
< span class = "mlabels" > < span class = "mlabel" > override< / span > < span class = "mlabel" > virtual< / span > < / span > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > reverse transformation. May not be implemented or may return approximate result < / p >
< p > Reimplemented from < a class = "el" href = "structfaiss_1_1VectorTransform.html#a101ce54f1c60df19478801aa942470d9" > faiss::VectorTransform< / a > .< / p >
< p > Definition at line < a class = "el" href = "VectorTransform_8cpp_source.html#l00630" > 630< / a > of file < a class = "el" href = "VectorTransform_8cpp_source.html" > VectorTransform.cpp< / a > .< / p >
< / div >
< / div >
< a class = "anchor" id = "a1e314577db0c6cd4a709503f73eb71e2" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "mlabels" >
< tr >
< td class = "mlabels-left" >
< table class = "memname" >
< tr >
< td class = "memname" > void OPQMatrix::train < / td >
< td > (< / td >
< td class = "paramtype" > < a class = "el" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > Index::idx_t< / a >   < / td >
< td class = "paramname" > < em > n< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > const float *  < / td >
< td class = "paramname" > < em > x< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / td >
< td class = "mlabels-right" >
< span class = "mlabels" > < span class = "mlabel" > override< / span > < span class = "mlabel" > virtual< / span > < / span > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > Perform training on a representative set of vectors. Does nothing by default.< / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > n< / td > < td > nb of training vectors < / td > < / tr >
< tr > < td class = "paramname" > x< / td > < td > training vecors, size n * d < / td > < / tr >
< / table >
< / dd >
< / dl >
< p > Reimplemented from < a class = "el" href = "structfaiss_1_1VectorTransform.html#a7350d4dd28d60866d55ba4f75d2da84c" > faiss::VectorTransform< / a > .< / p >
< p > Definition at line < a class = "el" href = "VectorTransform_8cpp_source.html#l00469" > 469< / a > of file < a class = "el" href = "VectorTransform_8cpp_source.html" > VectorTransform.cpp< / a > .< / p >
< / div >
< / div >
< h2 class = "groupheader" > Member Data Documentation< / h2 >
< a class = "anchor" id = "a6406e97b05c831cc19b9343be3b43a1f" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
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< td class = "memname" > int faiss::OPQMatrix::niter_pq_0< / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > same, for the first outer iteration < / p >
< p > Definition at line < a class = "el" href = "VectorTransform_8h_source.html#l00193" > 193< / a > of file < a class = "el" href = "VectorTransform_8h_source.html" > VectorTransform.h< / a > .< / p >
< / div >
< / div >
< hr / > The documentation for this struct was generated from the following files:< ul >
2017-03-01 17:50:47 +08:00
< li > < a class = "el" href = "VectorTransform_8h_source.html" > VectorTransform.h< / a > < / li >
< li > < a class = "el" href = "VectorTransform_8cpp_source.html" > VectorTransform.cpp< / a > < / li >
2017-02-23 06:26:44 +08:00
< / ul >
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