Wednesday, July 3, 2024

Linkedin profile | Alex Acero | Retiring notes

https://www.linkedin.com/in/alex-acero-234189/ 

在 Siri 团队度过了不可思议的 11 年之后,我即将从苹果退休。尽管我会怀念苹果出色的团队,但我很高兴能开启我的下一个篇章。我在苹果的第一段时间是在 1990 年,当时我在卡内基梅隆大学完成博士学位后不久。我要感谢我的论文导师Richard Stern,以及我的委员会成员 Raj Reddy、Jose MF Moura和李开复,他们为我做好了职业生涯的准备。我很荣幸成为李开复在苹果的第一位员工,我们的团队为 Mac 推出了 PlainTalk,这是一款具有突破性的不限说话人的连续语音识别系统。与当时其他商用 PC 系统不同,PlainTalk 不需要额外的硬件。我喜欢优化 HMM 以适应 Mac 有限的内存。后来,我加入了西班牙的 Telefonica,以满足富布赖特奖学金的 2 年居留要求。1994 年,我回到美国,加入微软研究院。该研究院由 Rick Rashid 于 1991 年创立。Rick 培育了一种类似卡内基梅隆大学的文化,吸引了像黄学东这样的卡内基梅隆大学教师。我非常感谢黄学东聘请我加入他的语音团队。后来,我成为Henrique Malvar手下的语音小组经理,我们发表了许多有影响力的论文,包括 2010 年与邓力、余东和Frank Seide合作的研究,用 DNN 取代 HMM 输出概率中的高斯混合,显著降低了词错误率。能够成为深度学习革命中的关键角色真是令人振奋。许多人都是从我与黄学东和洪小文合著的教科书中了解这个领域的,这也让我感到很欣慰。2013年,我回到苹果,加入第一款主流语音助手 Siri。 2011 年推出 Siri 后,苹果决定在内部开发语音技术,因此我很感谢William Stasior聘请我,让我有机会影响数百万人。我的首要任务是吸引研究人员加入苹果,当时苹果还没有发表论文。到 2017 年,我说服苹果高管允许发表论文。我的团队发展到 500 人,推出了速度更快、更准确的产品,语音质量更高,确保所有产品都在设备上运行,以保护隐私和可靠性。这包括行业首创,例如 2019 年智能手机上的设备神经 TTS 和 2020 年智能手表上的设备听写。我感谢我的经理John Giannandrea和Robby Walker的支持,以及出色的 Siri 团队使这一切成为可能。

脑梗疾病 | 东城中医医院专家雷秀珍

 

本月初,某媒体报道的一则重庆大爷突发脑梗、倒地后被清洁工人及时施救的新闻,一度被大众传为美谈。但是,在人们歌颂清洁工人的同时,脑梗疾病也又一次引发了百姓关注。到底什么是脑梗?该疾病又是由什么原因引起的呢?

        中老年人是脑梗疾病的主要发病群体

        脑梗死又称缺血性脑卒中,是指局部脑组织因血液循环障碍,缺血、缺氧而发生的软化坏死。

        东城中医医院心脑血管专家雷秀珍主任表示,脑梗的发病人群主要集中于年龄在45岁至70岁之间的中老年群体。在采访中,雷主任告诉笔者,从她三十余年从医经历中接触到的所有脑梗患者来看,约七成患者都属于中老年群体。雷秀珍认为,该疾病的发生与人的年龄有一定关系。

        “随着年龄的增长,人们身体内的新陈代谢逐渐变慢,尤其是在日常生活中有不良生活习惯、饮食习惯、缺乏运动、身体兼有某些慢性疾病的人群,都是该疾病的主要高发人群。”

        据雷秀珍介绍,糖代谢、脂肪代谢、蛋白质代谢俗称人体三大代谢,糖代谢变慢易造成血糖升高;脂肪代谢变慢易造成脂肪堆积、肥胖,从而引发糖尿病、高血压等慢性疾病,而这些慢性疾病又易引发脑部血液循环障碍,造成血管局部堵塞,日积月累,随着血管堵塞程度的加剧,最终引发脑梗。

        在医学工作者看来,很多疾病都不是一蹴而就的,它是随着时间的推移,在人体内一点一点变化衍生出来的,脑梗亦是如此。但是由于每个人体质的不同,有的人血管已经堵塞了60%、甚至70%,身体可能仍旧没有任何明显征兆,但是有些人在血管堵塞初期,就已经开始有了明显的表现特征。

        据了解,脑部发沉、头晕、眩晕、说话不利落、吐字不清晰、视物不清楚,都可能是局部脑组织血液循环障碍的初期征兆。

        如果以上症状出现时间较短、反应较轻,且通过良好的休息和调整症状可自行消失,那么问题尚且乐观。如果以上症状频繁出现,就需引起重视。人们应立即前往医院进行CT、核磁等相关检查,查看血管是否已经出现堵塞状况。

        脑梗治疗需三通三补、标本兼治

        据了解,多年来雷秀珍接触到的很多脑梗患者,他们在发病初期都对疾病未给予足够的重视,等到疾病发展到一定程度、严重影响其个人生活时,才开始积极治疗,这种作法是极其不正确的。“有些患者来就医时血管已经堵塞了70%、甚至80%,这些未及时就医的患者给他们的后期治疗带来了很大难度。”

        雷秀珍称,如果脑梗发生了必须尽早治疗,避免延误病情。但是由于有些患者在发病初期可能不会出现较为明显的临床症状,所以定期体检很重要。

        与西医治疗不同,中医治疗脑梗的主要原则是改善脑部血液循环,增加脑血流量,缩小脑梗塞面积。结合多年临床经验,如今雷秀珍针对脑梗塞的中医治疗原则是标本兼治,从血管、经络、脑窍、肝、肾、气血同调,以益气活血通脉法,实施通血管、通经络、通脑窍、补肝、补肾、补气血的三通、三补相结合原则。

        人体是一个有机的整体,兼顾补、通、治、防,并选用益气、养血、活血、通络的中草药经验配方,可以帮助人体脉络通畅。

        据雷秀珍介绍,该疗法还具有通调气血、保证气血平衡、使气血旺盛、使闭塞的血管得到疏通的益处。

        但她强调称,由于每个人的发病原因、身体体质等各不相同,有的人可能气血不足的症状表现的更为明显,有的人可能肾虚症状表现的更明显些,所以医生需对不同的患者对症下药,患者切不可自行盲目用药。

        脑梗疾病非中老年人“专利”

        据了解,如今在所有的脑部疾病当中,脑梗疾病的发病率一直居高不下。尽管中老年群体是该疾病的主要高发人群,但是这并不意味着年轻人就没有罹患脑梗的可能。

        近年来,在雷秀珍接触到的所有脑梗疾病患者中,有约10%的患者是年龄在25岁至35岁之间的年轻群体,而这一群体具有的最主要的共性就是生活压力较大、作息时间不规律、没有养成良好的饮食习惯,有抽烟、喝酒等不良生活习惯,本身缺乏运动,再加上家族里有高血压、高血糖、高血脂等遗传基因。以上因素,都可能是造成他们脑梗提前发病的原因。

        雷秀珍在接受采访时称,在日常生活中,人们一定要重视自己的身体健康,重视体内血管弹性的变化,预防血管斑块变大。

        她举例称,人体内的血管就像家中的自来水管一样,使用多年以后,管道内壁就易结垢、生锈,这时管道内的水流受阻而无法通畅运行,而胆固醇、甘油三酯、低密度脂蛋白等,就像是人们血液中的“水垢”,当它们在血管壁上越积越多、形成斑块,血管壁的弹力就会降低,最终人们就会因缺血而诱发脑梗塞。由此可以看出,保持血管通畅至关重要。

        所以雷秀珍认为,对于脑梗高发群体而言,为了预防脑梗,平时可以借助以药食同源材料为主的中草药配方,定期调理自身气血,使血管更通畅,身体更健康。“尤其是每逢秋冬季节,随着气温降低,人的血管更容易受冷收缩,此季节也是脑梗的高发季节,人们应格外注意。”

        另外她还提示称,在平时的日常生活中,人们应多食用富含维生素的食品,如西红柿、山楂,饮食以清淡为主,应把食用盐控制在6克左右,增加钾的摄入可降低血压,预防中风。

        多吃桃、橙、香蕉、菠菜、毛豆等富含钾的食物,少吃动物内脏,保证日常饮水量,每天应保证5至8杯水(约1000毫升至2000毫升)的饮水量,这样有助于稀释血液,预防血栓形成。养成良好的生活习惯,远离脑梗塞。

        如何预防脑梗塞

        以往脑梗塞基本属于老年病,但现在年轻化态势明显,30多岁的年轻人就出现脑梗已比较多见。适龄人群都应该了解一下病因,注意防范。

        1.脑梗塞病人以内因引发者居多。生活节奏的加快、压力的增大,情志忧思悲恐、情绪紧张是主要原因之一。因此要学会放下纷扰,乐观生活;

        2.有高血压、心脏病、糖尿病、高血脂、慢性房颤等心脑血管相关疾病的人群易发,需要警惕;

        3.中老年是一个重要的独立危险因素,没有其他疾病的,也可能突发脑梗,这个年龄段的人群一定要引起重视;

        4.气候寒冷也是病发的重要因素。来王大夫处就诊的心脑血管病人当中,东北、内蒙、山西、赤峰、乌鲁木齐等寒冷地区的病人占了非常大的比例。因此寒冷季节,尤其是寒冷地区人群一定要注意防寒;

        5.有中风家族史的,要特别注意,脑梗塞可能找上来;

        6.饮食不节,过食油腻滋补食物以及饮酒,抽烟,肥胖,可致脾湿生痰,痰郁化热,引动肝风,夹痰上扰致病发。起居有节,养成良好的生活习惯可预防脑梗塞。

        链接:预防心脑血管疾病健康小贴士

        雷主任提醒,心脑血管疾病危害大,提前预防非常关键:

        1.膳食均衡,进补适宜。膳食不均衡是导致心脑血管疾病的重要原因之一,因此饮食一定营养搭配合理,吃饭定时,定量,不暴饮暴食。另外,运动少,补充热性食物和滋补过盛容易造成血脂增高,诱发心脑血管疾病,因此秋冬进补要根据个人的体质进行。

        2.心理平衡。忧郁、焦虑、悲观的情绪,精神压力,以及大笑等都会引起血管内膜收缩,加速血管老化,情绪激动更是心脑血管病的大忌,因此应心平气和,保持良好的情绪和愉快的心情,让身体的免疫机能处在最佳状态。

        3.劳逸结合。作息时间规律,疲劳和晚睡熬夜会打乱心脑血管生物钟,造成身体的组织器官功能失调,导致血管收缩,血流减慢,黏稠度增加,时间长了还会影响血脂的新陈代谢。

        4.适当运动。运动量少可造成血流缓慢,血脂升高,心脑血管患者要适当运动,但要注意合理安排运动时间并控制好运动量。

 

SABR | Sell 6% top | Challenges | Volume profile | HMA | RSI | 1min and 5 min

First, it is the first time I used a volume profile and I learned the lesson today. 

I tried to figure out why there were not so many sell-order, but the volume of buy order compared to last 14 days is much bigger, two or three times more. 



Check 5 min chart using HMA to sell if there is sell signal compared to 1 min sell signal. Then it is better to hold and skip noise - sell signal on 1 min chart, therefore 6% gain to sell $2.76/ share later on. 


Use RSI chart to sell at the top 2.76/ share, since HMA signal is too late to sell. 

Indicators used: 

All from my favorite indicators, less than five indicators 



First 100 hours | Learning tradingview indicators | My favorite ones | Essential plan | Limit 5


 

SABR stock | Should wait until HMA signal sell | Sold too early | July 3 2024

 


Holly 冬青

 Holly 冬青

冬青(學名Ilex)是好多人熟悉的植物,也在聖誕節花環的重要裝飾物。

冬青的葉子油綠光亮,而且多數有鋸齒邊,很容易認。而鮮紅的漿果對比下,就成為最常見的聖誕卡圖案。

通常我們見到的冬青都是結果的,其實那都是雌性植株,必須有另一顆雄性植株在附近。因為冬青樹是雌雄異株,同時只有雌性的那株會結果實。只有極少數品種,是不需要雄性的也能自己結果。

冬青非常耐寒,通常5區以上就可以種。其實冬青不只是一般常見的只會生漿果的矮灌木,很多冬青可以生長到6-英尺以上。也有很多人用來種成為圍欄,或是沿牆種植,都有很好效果。(詳細種植方式參見:冬青Holly)

SABR stock | Volume profile | up 7% | Trend analysis

 


SABR stock | Volume profile | Tradingview.com | July 3 2024

 


SABR stock | Volume profile | Tradingview.com | July 3 2024

 


SABR stock | Volume profile

 


Plan Your Trades With The Long and Short Position Tool: Tutorial

Here is the link.


Tradingview.com | Volume footprint chart

Here is the article. 


TradingView's New Volume Footprint Chart: Tutorial

Here is the link. 


Tuesday, July 2, 2024

Best video | Tradingview.com | Session Volume Profile: Tutorial | Julia's note

Here is the link. 

Julia's note:

Last 10 or 15 minutes there is a short talk about how to time the market using volume profile:

Tips related to how to find the stock, and check volume and setup an alert, and then avoid FOMO, time the market to get in. 


Resistance level | POC price | Tradingview.com | SABR stock | March - July 2024 | Volume profile

 


Tradingview.com | SABR stock | Volume profile

 


Best video | Rating AAA | Tradingview.com | Volume Profile Trading Examples: Walkthrough

Here is the link. 

A few ways to use this - Volume profile Session HD



Best videos | How to Trade Volume: Tutorial

Here is the link. 

We quickly want to show you the basics of adding volume to your chart. Especially what that means and how it can be used. At its core volume shows you how many buyers and sellers transacted at a specific price. It shows you how many shares, contracts or coins were traded over a specific period of time. Some traders use volume to confirm trends, measure popularity, and look for abnormal trading activity. Volume is different from Volume Profiles in the sense that Volume shows you how much trading Volume occurred at a specific point in time. Volume Profiles show how much trading Volume occurred at a specific price. We explain this later on in the video toward the end. Adding volume to your chart is easy. Open the Indicators menu and then search for Volume. From there, you can edit Volume to show you a moving average and change its color or appearance.

Julia's notes:

  1. Add Bollinger Bands
  2. Add 14 moving average line
  3. Use tradingview volume indicator


Periodic Volume Profile | 15 min | SABR stock | July 2 2024

 


Periodic Volume Profile | 1 H | SABR stock | July 2 2024

 


Volume profile | Length 90 | 1D | Largest volume | SABR stock

 


Volume profile | Tradingview.com | AAVP | Earnings | POC, VAH, VAL price

 


Tradingview.com | Volume delta

 Here is the link.

The Volume Delta indicator uses intrabar volume and price fluctuations to estimate the difference (delta) between buying and selling pressure within each chart bar, providing insight into an instrument's sentiment and market dynamics. 

The indicator analyzes each chart bar from an intrabar timeframe (i.e., a timeframe lower than the chart's), categorizing each intrabar's volume as positive or negative. It gradually accumulates the polarized volume values throughout a chart bar to calculate the volume delta, and it keeps track of the highest and lowest volume delta values achieved over the bar's duration. 

Sabr stock | Volume profiles indicator | AAVP | July 2 2024

POC - 2.59

value area 70 - SABR stock price range 

VAH - 2.60

VAL - 2.58


Tradingview.com | Volume Profile Indicators: basic concepts

Here is the article. 

Example strategy

Just like with most other tools or studies, Volume Profile has a number of uses. There are many trading strategies out there using Volume Profile as a key component. Below are the basics of one such strategy which is based on comparing the current day’s opening price to the previous day’s Volume Profile:

  • If the current day opens above the previous day’s value area (but still below the Profile High) look for price to retrace back towards the Point of Control and then proceed to rise (the direction of the day’s open). Therefore during the retracement to the Point of Control, there is a buying opportunity.
  • If the current day opens below the previous day’s value area (but still above the Profile Low) look for price to retrace back towards the Point of Control and then proceed to fall (the direction of the day’s open). Therefore during the retracement to the Point of Control, there is a selling opportunity.
  • If the current day’s opening price is completely outside of the previous day’s profile (above the Profile High or below the Profile Low) this can be seen as a possible runner in the direction of the opening price relative to the previous day’s profile range.

Summary

Volume Profile is an extremely valuable technical analysis tool that is used by traders everywhere. The key to Volume Profile’s continued relevance is its versatility. It is a charting tool that truly does have a wide array of uses. Unlike many other studies, there is little to no debate about Volume Profile’s usefulness. The data that is provided by Volume Profile is indisputable, leaving it to the trader to find new and creative ways to use it. Even though in its simplest form, it is a great reactive method for discovering traditional support and resistance areas, traders are still coming up with ways to chart the indicator in predicative or proactive ways. Consider the trading strategy example given earlier in the article. Being able to compare a real-time event (the current day’s open) with historical events (the previous day’s volume profile) and make a trading decision based on the relationship is a great example of this.

Palouse Falls

 Palouse Falls is a waterfall in the northwest United States on the Palouse River, about four miles (6 km) upstream of its confluence with the Snake River in southeast Washington. Within the 94-acre (38 ha) Palouse Falls State Park, the falls are 200 feet (61 m) in height,[2] and consist of an upper fall with a drop around twenty feet (6 m), which lies 1,000 feet (300 m) north-northwest of the main drop, and a lower fall.

睑黄瘤 | 高血脂 | 坏胆固醇

 睑黄瘤主要是由脂质沉积引起的,因此被视作高血脂的一种信号。

高血脂患者的低密度脂蛋白 (LDL)水平升高,这种“坏胆固醇”尤其喜欢皮肤松弛的部位,比如眼睑。

眼睑是人体最容易衰老松弛的地方,很容易导致脂质在这里沉积,形成睑黄瘤。

如果一直放任不管,睑黄瘤可能长满整个眼睑,甚至在手上、腿上也会出现。

要治黄色瘤,首先要做的就是调节饮食、减轻体重,恢复自己的正常代谢。如果是代谢障碍引起的黄色瘤,那么最重要的是针对病因进行治疗。也可以到皮肤科有针对性的进行局部治疗达到美容效果。

高血脂跟心脑血管疾病有着密不可分的联系,一旦发现这种高血脂的征兆,一定要引起重视。

皮肤下面长的硬疙瘩

可能有感染风险

那种偏硬、不易推动的圆疙瘩,可能是表皮囊肿。

表皮囊肿通常长在脸上、脖子上、背部这些容易出油的部位。虽然它不痛不痒,但如果卫生没做到位,你又喜欢去摸它抠它,很容易导致表皮囊肿出现进一步感染。

Monday, July 1, 2024

Fixed Range Volume Profile: Tutorial

Here is the link. 

This video dives into the Fixed Range Volume Profile tool and how you can use it to draw on your chart, to study price and volume at the same time, and to make more informed decisions with price and volume in mind. This is video 1 in a 3 part series we are creating about Volume Profiles. Volume Profiles are important tools that show you price and volume at once. We hope to make this video series as detailed as possible so you can use these tools to the best of your ability, to fit your strategy and your goals. They show the price levels that have the most trading volume. Rather than seeing volume by each day, you can now see volume over a specific period of time and the prices that attracted the most volume. Where are buyers buying and sellers selling? Where are the most transactions occurring? The Fixed Range Volume Profile is one of the Volume Profile tools available to all TradingView members. You select two points in time and then study those two points as needed. They can be earnings reports, volume spikes, specific dates or news. Just click the start and then click the end and the Fixed Range Volume Profile will calculate and show you the data on the chart. This video explains the settings of these tools, a total walkthrough on how to use them and what customizations are available. Then it dives into using alerts alongside it.


Visible Range Volume Profile: Tutorial

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This is the final video in our Volume Profile series! This video will show you the Visible Range Volume Profile so that you can see the price levels that attracted the most trading volume over any time frame. Zoom in or out of the chart, change your timeframe, go to stocks or crypto or futures, and the chart will adapt with your view. Visible Range is a tool that can be used quickly as you do your research across all assets and timeframes. It dynamically adjusts with your screen and view. To put it simply, the Visible Range Volume Profile tool shows you the price levels where the most trading volume occurred no matter the timeframe or time interval you have open. And it will adjust as you adjust your chart. It's fast and fluid, designed to work as fast as you can chart. We hope this video helps you get started! Thank you for watching.

Introduction to Volume Profiles on TradingView: Tutorial

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In this video, we introduce you to the power of volume profiles on TradingView. Learn the fundamentals of volume profiles and how they can enhance your trading strategy by providing deeper insights into market activity. We'll guide you through setting up and interpreting volume profiles on TradingView, using real-world examples to illustrate their application. Whether you're a beginner or an experienced trader, this tutorial will help you leverage volume profiles for more informed trading decisions. Don't forget to like, comment, and subscribe for more in-depth TradingView tutorials. #TradingView #VolumeProfiles


Tradingview.com | Volume profile

Best Volume Indicator for Day Trading

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The Best volume indicator i have found is called volume profile. The volume indicator shows you the buying and selling volume at specific areas in the chart. Volume profiles helps you determine whether the trend will continue or reject at specific prices.


TOP 5 Volume Indicators You Can't Afford To Miss ( Best on TradingView )

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  1. Force index
  2. Volume oscillator - short term vs long term volume 
  3. Chaikin volatility 
  4. Volatility oscillator 




HE stock | RSI | HMA | Tradingview.com indicators

 


NKE stock | RSI | HMA | Short term

 


SABR stock | SABR | RSI 14 | HMA | Tradingview.com indicators