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loss    音标拼音: [l'ɔs]
n.
U损失,丧失,遗失;U输,未获得,未保住;U减少,浪费,未能利用;C损失物

U损失,丧失,遗失;U输,未获得,未保住;U减少,浪费,未能利用;C损失物

loss
损耗

loss
损耗 损失

loss
n 1: something that is lost; "the car was a total loss"; "loss
of livestock left the rancher bankrupt"
2: gradual decline in amount or activity; "weight loss"; "a
serious loss of business"
3: the act of losing someone or something; "everyone expected
him to win so his loss was a shock"
4: the disadvantage that results from losing something; "his
loss of credibility led to his resignation"; "losing him is
no great deprivation" [synonym: {loss}, {deprivation}]
5: the experience of losing a loved one; "he sympathized on the
loss of their grandfather"
6: the amount by which the cost of a business exceeds its
revenue; "the company operated at a loss last year"; "the
company operated in the red last year" [synonym: {loss}, {red
ink}, {red}] [ant: {gain}]
7: military personnel lost by death or capture [synonym: {personnel
casualty}, {loss}]
8: euphemistic expressions for death; "thousands mourned his
passing" [synonym: {passing}, {loss}, {departure}, {exit},
{expiration}, {going}, {release}]

Loss \Loss\ (l[o^]s; 115), n. [AS. los loss, losing, fr.
le['i]san to lose. [root]127. See {Lose}, v. t.]
1. The act of losing; failure; destruction; privation; as,
the loss of property; loss of money by gaming; loss of
health or reputation.
[1913 Webster]

Assured loss before the match be played. --Shak.
[1913 Webster]

2. The state of losing or having lost; the privation, defect,
misfortune, harm, etc., which ensues from losing.
[1913 Webster]

Though thou repent, yet I have still the loss.
--Shak
[1913 Webster]

3. That which is lost or from which one has parted; waste; --
opposed to {gain} or {increase}; as, the loss of liquor by
leakage was considerable.
[1913 Webster]

4. The state of being lost or destroyed; especially, the
wreck or foundering of a ship or other vessel.
[1913 Webster]

5. Failure to gain or win; as, loss of a race or battle.
[1913 Webster]

6. Failure to use advantageously; as, loss of time.
[1913 Webster]

7. (Mil.) Killed, wounded, and captured persons, or captured
property.
[1913 Webster]

8. (Insurance) Destruction or diminution of value, if brought
about in a manner provided for in the insurance contract
(as destruction by fire or wreck, damage by water or
smoke), or the death or injury of an insured person; also,
the sum paid or payable therefor; as, the losses of the
company this year amount to a million of dollars.
[1913 Webster]

{To bear a loss}, to make a loss good; also, to sustain a
loss without sinking under it.

{To be at a loss}, to be in a state of uncertainty.

Syn: Privation; detriment; injury; damage.
[1913 Webster]

94 Moby Thesaurus words for "loss":
ablation, annihilation, attrition, bankruptcy, bereavement,
breakage, breakdown, collapse, confusion, consumption, corrosion,
crack-up, crippling, damage, death, decrement, defeat,
deliquescence, demise, denial, depletion, deprivation, deprivement,
destruction, detriment, devastation, dilapidation, diminution,
disablement, disadvantage, disappearance, disappointment,
dispossession, disrepair, dissipation, dissolution, divestment,
downfall, drawback, drubbing, dying, encroachment, erosion,
exhaustion, extermination, extinction, failure, forfeit,
forfeiture, handicap, harm, havoc, hobbling, hurt, hurting,
impairment, impoverishment, incapacitation, infringement, injury,
inroad, liability, losing, losings, loss of ground, losses,
maiming, mayhem, mischief, mislaying, misplacement, misplacing,
mutilation, passing, prejudice, privation, reduction, ruin,
ruination, ruinousness, sabotage, sacrifice, scathe, shrinkage,
sickening, spoiling, squandering, step backward, trouncing,
wastage, waste, wasting, weakening, wear and tear

Something (not a person) that loses; a situation in
which something is losing. Emphatic forms include "moby
loss", and "total loss", "complete loss". Common
interjections are "What a loss!" and "What a moby loss!"
Note that "moby loss" is OK even though **"moby loser" is not
used; applied to an abstract noun, moby is simply a magnifier,
whereas when applied to a person it implies substance and has
positive connotations.

Compare {lossage}.

(1995-04-19)

loss: n. Something (not a person) that loses; a situation in which something
is losing. Emphatic forms include moby
loss, and total loss,
complete loss. Common interjections
areWhat a loss!” andWhat a moby loss!” Note
that moby loss is OK even though
**moby loser is not used; applied to
an abstract noun, moby is simply a magnifier, whereas when applied to a
person it implies substance and has positive connotations. Compare
lossage.

LOSS, contracts. The deprivation of something which one had, which was
either advantageous, agreeable or commodious.
2. In cases of partnership, the losses are in general borne by the
partners equally, unless stipulations or circumstance's manifest a different
intention. Story, Partn. Sec. 24. But it is not essential that the partners
should all share the losses. They may agree, that if there shall be no
profits, but a loss, that the loss shall be borne by one or more of the
partners exclusively, and that the others shall, inter se, be exempted from
all liabilities for losses. Colly. Partn. 11; Gow, Partn. 9; 3 M. & Wels.
357; 5 Barn. & Ald. 954 Story, Partn. Sec. 23.
3. When a thing sold is lost by an accident, as by fire, the loss falls
on the owner, res perit domino, and questions not unfrequently arise, as to
whether the thing has been delivered and passed to the purchaser, or whether
it remains still the property of the seller. See, on this subject, Delivery.


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  • 深度学习的loss一般收敛到多少? - 知乎
    这个链接是回归问题的loss,本回答说一下分类问题的。 交叉熵 公式这里就不放了(手机打字不方便),可以看出,其实loss就是log(Pi)的平均值,Pi指的是预测ground truth的概率。所以,如果你希望预测概率超过0 5就好,那么loss就训练到log(0 5)。
  • 损失函数|交叉熵损失函数 - 知乎
    Deng [4]在2019年提出了ArcFace Loss,并在论文里说了Softmax Loss的两个缺点:1、随着分类数目的增大,分类层的线性变化矩阵参数也随着增大;2、对于封闭集分类问题,学习到的特征是可分离的,但对于开放集人脸识别问题,所学特征却没有足够的区分性。
  • 大模型优化利器:RLHF之PPO、DPO - 知乎
    最终,我们可以得出 DPO 的 loss 如下所示: 这就是 DPO 的 loss。DPO 通过以上的公式转换把 RLHF 巧妙地转化为了 SFT,在训练的时候不再需要同时跑 4 个模型(Actor Model 、Reward Mode、Critic Model 和 Reference Model),而是只用跑 Actor 和 Reference 2 个模型。
  • 深度学习当中train loss和valid loss之间的关系? - 知乎
    val loss是在验证集上的损失,衡量的是在未见过数据上的拟合能力,也可以说是 泛化能力 。模型的真正效果应该用val loss来衡量。 模型的真正效果应该用val loss来衡量。
  • 哪里有标准的机器学习术语(翻译)对照表? - 知乎
    损失 (Loss) 一种衡量指标,用于衡量模型的预测偏离其标签的程度。或者更悲观地说是衡量模型有多差。要确定此值,模型必须定义损失函数。例如,线性回归模型通常将均方误差用作损失函数,而逻辑回归模型则使用对数损失函数。 L_1 损失函数 ( L_1 Loss)
  • 深度学习网络收敛之后的loss数值代表什么? - 知乎
    从loss_reg来看:可以找到一些训练样本的bbox的回归处于抖动状态,很难和gt完美贴合,实际上所有目标不太可能和所有gt完美贴合,这就会导致loss_reg的收敛值。如果因为类别正确,bbox的回归值导致这个bbox被判定为FP,就需要额外关注了。
  • 训练网络时为什么会出现loss逐渐增大的情况? - 知乎
    综上,初期loss上升,不一定发散,是正常的。在不带momentum的情况下,一般不应该出现这种情况。 解决方案:训练到loss稳定下降很缓慢时,降低学习率,或者试试不用momentum,或者多训练一段时间看看
  • 为什么loss曲线会一直在波动呢? - 知乎
    这样,模型在下一个不同批次的数据上表现可能就不好,导致loss上升,看起来就是loss曲线在波动。 不对称的优化问题:训练神经网络往往是在处理非常复杂的优化问题,存在很多局部最小值。就像山上有许多不同的凹槽,有时模型会被卡在这些非全局最优的点
  • 训练深度学习网络时候,出现Nan是什么原因,怎么才能避免? - 知乎
    如果是训练开始就出现,或者确认没有脏数据,那可能是梯度太大了。要确认这一点,可以先把学习率设置到非常小的数,还出现 loss nan 那十有八九还是数据的问题,如果学习率设置得很小后没有 loss nan 了,可以从模型参数和网络结构入手去盘一盘。
  • 请问MSE loss 大小多少才表示模型优化效果好呢?0. 01大概是什么水平? - 知乎
    主要看评价指标是什么,评价指标是检验模型好坏的标准之一(对,就是之一 如果你的评价指标就是mseloss,验证集的loss和训练集的loss相差不大(说明没有过拟合),而且你的loss是在可接受范围内(说明优化到位了),那模型效果完全可以接受。





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