实验表明，该算法通过有效降低稀疏性、冷开始和实现实时推荐，提高了预测精度。
The experimental results show that the optimized algorithm can increase prediction precision, by way of reducing sparsity and cold-start problems, and realizing real-time recommendation effectively.
这是在用户级的一种解决"冷开始问题"的方案，就像Facebook连接帮助网页应用的那样。
That's the kind of solution to the user-level "cold start problem" that Facebook Connect has been so helpful with for web apps.
为解决协同过滤推荐中“稀疏”和“冷开始”问题，提高推荐精度，提出了基于隐式评分的推荐系统。
Recommendation system based on implicit rating was proposed to improve the precision and solve the problems of "scarcity" and "cold-start".
电子商务系统规模的日益扩大，协同过滤推荐方法也面临诸多挑战：推荐质量、可扩展性、数据稀疏性、冷开始问题等等。
But, with expansion of E-commerce system's size, collaborative filtering approach suffer from many challenges, for instance, quality of recommendations, scalability, sparsity, cold-start problem.
随着秋天的到来，天气变得更冷了，并且树叶开始变黄了。
With autumn coming on, the days are getting cooler and the leaves are beginning to turn yellow.
轻装上阵，或许刚开始跑步时你会觉得有点冷，但在跑步结束时你会觉得十分舒适。
Dress lightly enough so that you're a little chilly at the beginning of your run, and then feel great at the end.
如果含水量达到饱和状态的空气遇到了非常冷的另一团空气，空气中的原先呈雾状的水分就开始凝结变成小的雪粒。
If a stratum of air saturated with moisture meets a very cold one, the fog begins to freeze, and becomes specks of snow.
如果您有通宵熬夜的经历，您就会发现，在清晨前的几个小时才会开始觉得冷。
If you've ever stayed up the whole night through, you may have noticed that you begin to feel cold in the hours just before morning.
在最初的三个小时海水还不是那么冷，但后来我们就开始失去体温。
The water wasn't that cold for the first three hours, but then we started losing our body heat.
当你进行的时候，反应堆就会用全部的动力，运行，你排放出初冷却剂，那是热的，你开始注入紧急核心冷却水，那是冷的。
When you have an event, the reactor is operating at full power, you blowdown the primary coolant which is hot, you start injecting emergency core cooling water which is cold.
据我所知，他的精神状况良好而且他们都在互相扶持，但是那里已经开始下雪了，而且非常冷。
As far as I know he was in good spirits and they were supporting each other, but it has been snowing and is very cold.
与其带着满腔愤怒开始行动，不如暂停下来，花点时间反思一下，或者跟别的教练商量一下，甚至冷它一会儿不去管它先。
Instead of reacting immediately with our frustration, pause, take some time to reflect, talk it over with another coach, perhaps even sleep on it.
结果，在促销活动开始时，零售系统会遇到一个巨大的访问峰值，这会给处于相对冷机状态的系统造成巨大的压力。
As a result, at the start of the sales event, the retailers systems experience a tremendous spike in volume, placing a tremendous stress on the relatively cold system.
您不再需要在充当暖和冷备份服务器(从DB 29开始)的服务器上授权功能包。
You no longer have to license feature packs on a server that is acting as a warm or cold standby server (as of DB2 9).
您不再需要授权冷备份机器(从DB 2 9.5开始)。
You no longer have to license a cold standby machine (as of DB2 9.5).
水泥市场的开始“发热”与玻璃、陶瓷、装饰、装修市场的开始“驱冷”会形成鲜明的对比。
Cement market in the beginning of "Fever" with glass, ceramics, decoration, decoration market, began to "drive cold" would be in sharp contrast.
秋天是一年的第三季节。它大约开始于九月。天气变得越来越冷，白天变得越来越短。
Autumn is the third season of the year. It begins around September. The weather gets colder and colder. The days get shorter and shorter.
黄昏沉沉袭来，一阵寒风呼啸而过，我站在风里，有点冷了，许是要降温了吧，不久凉意开始四处蔓延。
Dusk was hit, a cold wind roared past, I stand in the wind, a little cold, perhaps to cool it, soon began to spread coolness.
天晴了，可是一样的冷。新的分公司，我开始了筹备和准备，一段新的征程，会是我的奇迹吗？
The weather was fine, but like the cold. The new branch, I started the preparation and prepare for a new journey, I would be a miracle it?
有人开始打喷嚏时，留下一冷，空调房间。
Others start sneezing when leaving a cold, air-conditioned room.
它开始来来回回地飞，每盘旋一次都飞得更高。空气越来越冷，脚下远处传来一阵鹰啼。
He began flying to and fro, getting higher at each turn. The air grew colder, and they heard the call of eagles far below them.
现今太阳走到我们山谷西面石璧的背后，而这里正在变得更黑、更<石竹>色、更冷，更多紫色系的色调开始偷偷穿过那些突出的尖端。
By now the sun was gone behind the western wall of our valley and it was getting darker, pinker, colder, more hues of purple began to steal across the jags.
比赛中有的运动员会突然出现腹痛，其原因一般来说是准备活动做得不充分，加上天气比较冷，开始跑时吸入了大量的冷空气或起跑速度过快等，出现“岔气”现象。
Some athletes may suffer a sudden abdominal pain during the race, which is often caused by insufficient warming-up exercise, a cold weather so that a lot of cold air is inhaled, or running too fast.
农场主的妻子端进来一些冷肉和油炸土豆。于是，两个人又开始吃起来。
The farm's wife brought in some cold meat and Fried potatoes, and the two men ate again.
风开始大了起来，让天气变得更冷。
刚开始，冷雨淋到我身上时，我又一次开始怀疑自己的决定，但我还是坚持继续向前。
The initial sting of the cold rain had me questioning myself again but I kept going.
他斜靠在这个位置上，喘息着，觉得他手掌下那个温暖的部位，也开始变得越来越冷了。
As he leaned panting against the spot, he felt even the warm spots growing chill beneath his hands.
化雪永远比下雪冷，就像结束永远比开始疼。
It is always colder than snow, just like the ending is always better than the beginning.
化雪永远比下雪冷，就像结束永远比开始疼。
It is always colder than snow, just like the ending is always better than the beginning.
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