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Model Description by Creator

整一个小活,并尝试一种炼制特定服装概念的新方法:手动正则+差异炼丹。其中,蒙版训练集图片 106 张,目标训练集图片 77 张。

该服装概念的主要训练难点在于去除画风和脸部影响,因此训练过程比较复杂。

该版已是目前炼制的最好的版本,因全部精力都用在服装的固化上,所以我不保证其具有良好的泛化性。当然,所有关于心海的人物特征全都放在了 sangonomiya kokomi 这个标签中,你也可以把它当成心海的角色 lora 用,不过效果应该不会比站内其他的心海模型好。

触发词:official costume, white short shorts, choker, wide sleeves, white thighhighs, vision \(genshin impact\)

示例:1girl, green hair, green eyes, solo, official costume, wide sleeves, white short shorts, white thighhighs, bare shoulder, choker, necklace, vision \(genshin impact\), outdoors, street, hair ornament, navel

目前该方法差不多已经成型,离落地还差一些小问题,主要包括:

  • 该方法需要保证目标角色具备一定的泛化能力,即需要有与目标训练集图片数量相当甚至更多的蒙版训练集。这里就是指,穿着各种各样服装的心海同人图。因此,对于非常冷门的角色,且没有 alternative costume 的角色,该方法不适用。(或许存在一个最小训练集?比如我最初训练 dreambooth 的时候,正则化训练的默认参数为20张图片。我不清楚 lora 是否也只需要 20 张图片就能保证模型的泛化能力)

  • 服装的某些细节部分出图不太稳定,比如短裤有处挂宝石的地方,使用 Anything 出图经常会出不来(原本是宝石的地方会变成一个洞)。我感觉可能是服装有些欠拟合,不过再训练下去,画风就开始过拟合了,可能会在今后继续优化其稳定性。

  • 头饰无法还原。可能是在实验的过程中,往蒙版训练集中添加了部分带头饰的心海导致的(不是很多,可能占20%?)。因此我估计需要对两个 lora 训练集的概念进行严格分离,剔除掉里面含有头饰的图片。

  • 目标概念训练集的标签合并问题 —— 如何做到概念容易调用的同时,拟合程度也高。

  • 蒙版 lora 的拟合程度 —— 过拟合可能会加大目标 lora 的训练难度,欠拟合可能会使目标 lora 更容易受到画风污染。因此我感觉蒙版 lora 的选择全凭感觉,不过还是有迹可循的。

    一般而言,应优先选择过拟合程度较重的蒙版 lora ,并根据后续的训练结果,决定是否进行调整。如果你的训练集足够大,个人猜测,在 epoch 数相同的情况下,训练集图片数量越多的蒙版 lora,后续目标概念的训练难度会越低。这也是我为什么建议蒙版训练集图片数应大于目标训练集,因为如果图片数量太少,可能会出现画风和目标概念无法分离的情况(目标 lora 远远还没达到拟合,却已经开始受到画风污染)。

    比如我在训练这个服装的时候,选择了一个过拟合程度较重的 lora 用于第二步的差异炼丹(batch size = 4,epoch = 12,average key norm > 0.96)。在 batch size = 4 ,epoch > 10 以后,模型开始出现画风污染的迹象,而在 10 之前,服装还处于欠拟合。考虑到模型 dim 值较低,后续画风变化可能不大,应优先降低目标概念训练难度,因此需选择epoch = 10 或 11 的蒙版 lora 用于第二步的训练中

该模型不会放到国内任何 ai 平台上,因为他们一般有非常严格的图片审核制度。我估计上传了,到时候样图一张都传不上去,会很恼火。

所有人物模型均为自训练模型,如果使用站内其他人物模型出图,导致模型效果不好的话,请务必不要差评,因为这个模型真的很难练。

欢迎在评论区交流炼丹经验。

Images Generated With This Model

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1girl,long hair,low twintail,uzawa reisa,multicolored hair,pink hair,blue hair,purple eyes,ahoge,solo,looking at viewer,official costume,wide sleeves,white short shorts,white thighhighs,bare shoulder,choker,navel,vision \(genshin impact\),street,<lora:clothes_kokomi_costume_v1:1.1>,<lora:character_uzawa_reisa_v2:1>
N/A
Hidden For Public Users
1girl,long hair,low twintail,uzawa reisa,multicolored hair,pink hair,blue hair,purple eyes,ahoge,solo,looking at viewer,official costume,wide sleeves,white short shorts,white thighhighs,bare shoulder,choker,navel,vision \(genshin impact\),street,<lora:clothes_kokomi_costume_v1:1.1>,<lora:character_uzawa_reisa_v2:1>
1girl,medium hair,brown eyes,brown hair,solo,looking at viewer,official costume,wide sleeves,white short shorts,white thighhighs,bare shoulder,choker,navel,vision \(genshin impact\),street,<lora:clothes_kokomi_costume_v1:1>,<lora:style_anmi_v1.2:0.9>
N/A
Hidden For Public Users
1girl,medium hair,brown eyes,brown hair,solo,looking at viewer,official costume,wide sleeves,white short shorts,white thighhighs,bare shoulder,choker,navel,vision \(genshin impact\),street,<lora:clothes_kokomi_costume_v1:1>,<lora:style_anmi_v1.2:0.9>
1girl,long hair,suomi,brown hair,blue eyes,solo,looking at viewer,official costume,wide sleeves,(white short shorts:1.2),white thighhighs,bare shoulder,(choker:1.2),navel,vision \(genshin impact\),cityscape,night,starry sky,<lora:clothes_kokomi_costume_v1:1>,<lora:character_suomi_v2.5:1>
N/A
Hidden For Public Users
1girl,long hair,suomi,brown hair,blue eyes,solo,looking at viewer,official costume,wide sleeves,(white short shorts:1.2),white thighhighs,bare shoulder,(choker:1.2),navel,vision \(genshin impact\),cityscape,night,starry sky,<lora:clothes_kokomi_costume_v1:1>,<lora:character_suomi_v2.5:1>
highres,1girl,long hair,blue hair,blonde eyes,solo,looking at viewer,(official costume:1.3),wide sleeves,white short shorts,white thighhighs,bare shoulder,choker,navel,vision \(genshin impact\),outdoors,ferris wheel,carousel,night,starry sky,cowboy shot,<lora:clothes_kokomi_costume_v1:1>,<lora:style_hiten_v3:0.9>
N/A
Hidden For Public Users
highres,1girl,long hair,blue hair,blonde eyes,solo,looking at viewer,(official costume:1.3),wide sleeves,white short shorts,white thighhighs,bare shoulder,choker,navel,vision \(genshin impact\),outdoors,ferris wheel,carousel,night,starry sky,cowboy shot,<lora:clothes_kokomi_costume_v1:1>,<lora:style_hiten_v3:0.9>
1girl,cecilia,green hair,green eyes,solo,official costume,wide sleeves,white short shorts,white thighhighs,bare shoulder,choker,vision \(genshin impact\),beach,ocean,navel,<lora:cecilia_final_v7:1>,<lora:clothes_kokomi_costume_v1:1>
N/A
Hidden For Public Users
1girl,cecilia,green hair,green eyes,solo,official costume,wide sleeves,white short shorts,white thighhighs,bare shoulder,choker,vision \(genshin impact\),beach,ocean,navel,<lora:cecilia_final_v7:1>,<lora:clothes_kokomi_costume_v1:1>
AI Model Training

Create Your Own AI Model

Train AI to generate stunning photos of yourself in any style or setting
highres,1girl,long hair,kou,braid,pink hair,green eyes,red hairband,fake rabbit ears,looking at viewer,(official costume:1.3),wide sleeves,white short shorts,white thighhighs,bare shoulder,choker,navel,vision \(genshin impact\),outdoors,night,starry sky,cherry blossoms,cowboy shot,<lora:clothes_kokomi_costume_v1:1.1>,<lora:kou_v6:0.4>
N/A
Hidden For Public Users
highres,1girl,long hair,kou,braid,pink hair,green eyes,red hairband,fake rabbit ears,looking at viewer,(official costume:1.3),wide sleeves,white short shorts,white thighhighs,bare shoulder,choker,navel,vision \(genshin impact\),outdoors,night,starry sky,cherry blossoms,cowboy shot,<lora:clothes_kokomi_costume_v1:1.1>,<lora:kou_v6:0.4>
1girl,long hair,medium hair,curly hair,blonde hair,purple eyes,gradient hair,multicolored eyes,solo,looking at viewer,official costume,wide sleeves,(white short shorts:1.2),white thighhighs,bare shoulder,(choker:1.2),navel,vision \(genshin impact\),underwater,jellyfish,bubble,<lora:clothes_kokomi_costume_v1:1>,<lora:weri_final6:1>
N/A
Hidden For Public Users
1girl,long hair,medium hair,curly hair,blonde hair,purple eyes,gradient hair,multicolored eyes,solo,looking at viewer,official costume,wide sleeves,(white short shorts:1.2),white thighhighs,bare shoulder,(choker:1.2),navel,vision \(genshin impact\),underwater,jellyfish,bubble,<lora:clothes_kokomi_costume_v1:1>,<lora:weri_final6:1>
1girl,solo,cecilia,green hair,green eyes,long hair,standing,white legwear,dress,detached sleeves,pantyhose,white dress,bare shoulders,china clothes,choker,high heels,jewelry,white gloves,neck ring,tassel,frills,skirt,ocean,beach,tree,<lora:clothes_fuxuan_costume_v1-000016:1>,<lora:character_cecilia_final_v7-000001:1>,
N/A
Hidden For Public Users
1girl,solo,cecilia,green hair,green eyes,long hair,standing,white legwear,dress,detached sleeves,pantyhose,white dress,bare shoulders,china clothes,choker,high heels,jewelry,white gloves,neck ring,tassel,frills,skirt,ocean,beach,tree,<lora:clothes_fuxuan_costume_v1-000016:1>,<lora:character_cecilia_final_v7-000001:1>,
1girl,solo,genshin impact,full body,cecilia,green hair,green eyes,hand up,ponytail,medium breasts,long hair,detached sleeves,white footwear,high heels,looking at viewer,black gloves,bodystocking,neck bell,chinese knot,outdoors,standing,<lora:clothes_ganyu_costume_v1:1>,<lora:character_cecilia_final_v7-000001:1>,
N/A
Hidden For Public Users
1girl,solo,genshin impact,full body,cecilia,green hair,green eyes,hand up,ponytail,medium breasts,long hair,detached sleeves,white footwear,high heels,looking at viewer,black gloves,bodystocking,neck bell,chinese knot,outdoors,standing,<lora:clothes_ganyu_costume_v1:1>,<lora:character_cecilia_final_v7-000001:1>,

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