Re: Why we choose Kylin
Thank you very much for your information, will catch up soon On Tue, Nov 14, 2023 at 1:40 PM Xiaoxiang Yu wrote: > I have to say currently Kylin is focused on OLAP solutions, without very > few use cases in data science or AI. > And it requires a good understanding of Hadoop/Spark if you want to > optimize query performance. > > For your question, I found a video of a Kylin Meetup in Shanghai(using > English). The speaker is from eBay, > the creator of the Kylin project, I think she has a better understanding > than me. > > The second section of the video summarized the use case of Kylin in eBay, > starting at 09:48 . > This video also introduces the history of the Kylin project. > > Here is the link: > > > https://www.bilibili.com/video/BV17h41127bV/?spm_id_from=333.337.search-card.all.click_source=233a70cff82cc278ec07b1660fdbc7d2 > > > With warm regard > Xiaoxiang Yu > > > > On Tue, Nov 14, 2023 at 1:42 PM Nam Đỗ Duy wrote: > > > Thank you Xiaoxiang for your reply > > > > This may be final question for our Board of Management to decide to use > > Kylin so please kindly answer: > > > > During your work with those big firms (listed in Who is using Kylin), > what > > do you find those big firms are utilizing kylin in their work in terms of > > (for example): > > > > - business area (like Marketing, research, sales support, risk management > > etc) > > - functional teams (data analyst, data science, AI project) > > - scope and scale of the project > > -… > > > > Thank you very much > > > > On Tue, 14 Nov 2023 at 09:58 Xiaoxiang Yu wrote: > > > > > Yes, we have meetups in different cities, it can be searched. Besides, > we > > > communicate by email or zoom. > > > > > > With warm regard > > > Xiaoxiang Yu > > > > > > > > > > > > On Tue, Nov 14, 2023 at 12:27 AM Nam Đỗ Duy > > > wrote: > > > > > > > Hi Xiaoxiang, > > > > > > > > Please kindly let us know: > > > > > > > > My boss is asking that: how do you know the companies in “Who is > using > > > > Kylin” section are actually using Kylin…do they inform you that fact > or > > > do > > > > you have any agreement with them? > > > > > > > > Thank you very much > > > > > > > > On Mon, 13 Nov 2023 at 09:34 Xiaoxiang Yu wrote: > > > > > > > > > 1. Which companies are using kylin now > > > > > You can visit the home page https://kylin.apache.org, and go to > 'Who > > > is > > > > > using Kylin?' part, > > > > > you will be finding logos of these companies. > > > > > > > > > > 2. How do they use kylin’s capabilities in AI/ML projects? > > > > > Currently I am focusing on Kylin itself. I did not have enough > > > knowledge > > > > in > > > > > AI/ML. > > > > > Here is what I know. > > > > > As far as I know, Kylin used to provide a Python library, so Kylin > > can > > > be > > > > > integrated > > > > > with some Python ML tools(such as > > > > > https://docs.byzer.org/#/byzer-lang/en-us/ > > > > > ), > > > > > but I don't know if it still works at the moment. I think it needs > > some > > > > > test and modification > > > > > to make these work with Kylin 5. > > > > > > > > > > > > > > > > > > > > > > > > > With warm regard > > > > > Xiaoxiang Yu > > > > > > > > > > > > > > > > > > > > On Mon, Nov 13, 2023 at 10:00 AM Nam Đỗ Duy > > > > > > wrote: > > > > > > > > > > > Hi Xiaoxiang > > > > > > > > > > > > Regarding the reason why we should choose kylin please provide > real > > > > > > use-cases to help me answer our boss’s question: > > > > > > > > > > > > 1. Which companies are using kylin now > > > > > > 2. How do they use kylin’s capabilities in AI/ML projects > > > > > > > > > > > > Thank you very much > > > > > > > > > > > > On Mon, 6 Nov 2023 at 13:42 Xiaoxiang Yu > wrote: > > > > > > > > > > > > > Here are some blogs which can help you to introduce advantages > of > > > > > Kylin . > > > > > > > > > > > > > > - > https://kylin.apache.org/blog/2022/01/12/The-Future-Of-Kylin/ > > > > > > > - > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/KYLIN/Why+did+Youzan+choose+Kylin+4 > > > > > > > - https://kylin.apache.org/blog/ > > > > > > > > > > > > > > > > > > > > > > > > > > > > With warm regard > > > > > > > Xiaoxiang Yu > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Fri, Nov 3, 2023 at 4:12 PM Nam Đỗ Duy > > > > > > > > > wrote: > > > > > > > > > > > > > > > Dear Sir/Madam > > > > > > > > > > > > > > > > I am persuading my company to use Kylin as OLAP platform. > > > > > > > > > > > > > > > > Could you please give some fact or some document to my > > > presentation > > > > > > about > > > > > > > > the reason why we should choose Kylin comparing with other > OLAP > > > > > > platform. > > > > > > > > > > > > > > > > Thank you very much > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
Re: Why we choose Kylin
I have to say currently Kylin is focused on OLAP solutions, without very few use cases in data science or AI. And it requires a good understanding of Hadoop/Spark if you want to optimize query performance. For your question, I found a video of a Kylin Meetup in Shanghai(using English). The speaker is from eBay, the creator of the Kylin project, I think she has a better understanding than me. The second section of the video summarized the use case of Kylin in eBay, starting at 09:48 . This video also introduces the history of the Kylin project. Here is the link: https://www.bilibili.com/video/BV17h41127bV/?spm_id_from=333.337.search-card.all.click_source=233a70cff82cc278ec07b1660fdbc7d2 With warm regard Xiaoxiang Yu On Tue, Nov 14, 2023 at 1:42 PM Nam Đỗ Duy wrote: > Thank you Xiaoxiang for your reply > > This may be final question for our Board of Management to decide to use > Kylin so please kindly answer: > > During your work with those big firms (listed in Who is using Kylin), what > do you find those big firms are utilizing kylin in their work in terms of > (for example): > > - business area (like Marketing, research, sales support, risk management > etc) > - functional teams (data analyst, data science, AI project) > - scope and scale of the project > -… > > Thank you very much > > On Tue, 14 Nov 2023 at 09:58 Xiaoxiang Yu wrote: > > > Yes, we have meetups in different cities, it can be searched. Besides, we > > communicate by email or zoom. > > > > With warm regard > > Xiaoxiang Yu > > > > > > > > On Tue, Nov 14, 2023 at 12:27 AM Nam Đỗ Duy > > wrote: > > > > > Hi Xiaoxiang, > > > > > > Please kindly let us know: > > > > > > My boss is asking that: how do you know the companies in “Who is using > > > Kylin” section are actually using Kylin…do they inform you that fact or > > do > > > you have any agreement with them? > > > > > > Thank you very much > > > > > > On Mon, 13 Nov 2023 at 09:34 Xiaoxiang Yu wrote: > > > > > > > 1. Which companies are using kylin now > > > > You can visit the home page https://kylin.apache.org, and go to 'Who > > is > > > > using Kylin?' part, > > > > you will be finding logos of these companies. > > > > > > > > 2. How do they use kylin’s capabilities in AI/ML projects? > > > > Currently I am focusing on Kylin itself. I did not have enough > > knowledge > > > in > > > > AI/ML. > > > > Here is what I know. > > > > As far as I know, Kylin used to provide a Python library, so Kylin > can > > be > > > > integrated > > > > with some Python ML tools(such as > > > > https://docs.byzer.org/#/byzer-lang/en-us/ > > > > ), > > > > but I don't know if it still works at the moment. I think it needs > some > > > > test and modification > > > > to make these work with Kylin 5. > > > > > > > > > > > > > > > > > > > > With warm regard > > > > Xiaoxiang Yu > > > > > > > > > > > > > > > > On Mon, Nov 13, 2023 at 10:00 AM Nam Đỗ Duy > > > > wrote: > > > > > > > > > Hi Xiaoxiang > > > > > > > > > > Regarding the reason why we should choose kylin please provide real > > > > > use-cases to help me answer our boss’s question: > > > > > > > > > > 1. Which companies are using kylin now > > > > > 2. How do they use kylin’s capabilities in AI/ML projects > > > > > > > > > > Thank you very much > > > > > > > > > > On Mon, 6 Nov 2023 at 13:42 Xiaoxiang Yu wrote: > > > > > > > > > > > Here are some blogs which can help you to introduce advantages of > > > > Kylin . > > > > > > > > > > > > - https://kylin.apache.org/blog/2022/01/12/The-Future-Of-Kylin/ > > > > > > - > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/KYLIN/Why+did+Youzan+choose+Kylin+4 > > > > > > - https://kylin.apache.org/blog/ > > > > > > > > > > > > > > > > > > > > > > > > With warm regard > > > > > > Xiaoxiang Yu > > > > > > > > > > > > > > > > > > > > > > > > On Fri, Nov 3, 2023 at 4:12 PM Nam Đỗ Duy > > > > > > wrote: > > > > > > > > > > > > > Dear Sir/Madam > > > > > > > > > > > > > > I am persuading my company to use Kylin as OLAP platform. > > > > > > > > > > > > > > Could you please give some fact or some document to my > > presentation > > > > > about > > > > > > > the reason why we should choose Kylin comparing with other OLAP > > > > > platform. > > > > > > > > > > > > > > Thank you very much > > > > > > > > > > > > > > > > > > > > > > > > > > > >
Re: Why we choose Kylin
Thank you Xiaoxiang for your reply This may be final question for our Board of Management to decide to use Kylin so please kindly answer: During your work with those big firms (listed in Who is using Kylin), what do you find those big firms are utilizing kylin in their work in terms of (for example): - business area (like Marketing, research, sales support, risk management etc) - functional teams (data analyst, data science, AI project) - scope and scale of the project -… Thank you very much On Tue, 14 Nov 2023 at 09:58 Xiaoxiang Yu wrote: > Yes, we have meetups in different cities, it can be searched. Besides, we > communicate by email or zoom. > > With warm regard > Xiaoxiang Yu > > > > On Tue, Nov 14, 2023 at 12:27 AM Nam Đỗ Duy > wrote: > > > Hi Xiaoxiang, > > > > Please kindly let us know: > > > > My boss is asking that: how do you know the companies in “Who is using > > Kylin” section are actually using Kylin…do they inform you that fact or > do > > you have any agreement with them? > > > > Thank you very much > > > > On Mon, 13 Nov 2023 at 09:34 Xiaoxiang Yu wrote: > > > > > 1. Which companies are using kylin now > > > You can visit the home page https://kylin.apache.org, and go to 'Who > is > > > using Kylin?' part, > > > you will be finding logos of these companies. > > > > > > 2. How do they use kylin’s capabilities in AI/ML projects? > > > Currently I am focusing on Kylin itself. I did not have enough > knowledge > > in > > > AI/ML. > > > Here is what I know. > > > As far as I know, Kylin used to provide a Python library, so Kylin can > be > > > integrated > > > with some Python ML tools(such as > > > https://docs.byzer.org/#/byzer-lang/en-us/ > > > ), > > > but I don't know if it still works at the moment. I think it needs some > > > test and modification > > > to make these work with Kylin 5. > > > > > > > > > > > > > > > With warm regard > > > Xiaoxiang Yu > > > > > > > > > > > > On Mon, Nov 13, 2023 at 10:00 AM Nam Đỗ Duy > > > wrote: > > > > > > > Hi Xiaoxiang > > > > > > > > Regarding the reason why we should choose kylin please provide real > > > > use-cases to help me answer our boss’s question: > > > > > > > > 1. Which companies are using kylin now > > > > 2. How do they use kylin’s capabilities in AI/ML projects > > > > > > > > Thank you very much > > > > > > > > On Mon, 6 Nov 2023 at 13:42 Xiaoxiang Yu wrote: > > > > > > > > > Here are some blogs which can help you to introduce advantages of > > > Kylin . > > > > > > > > > > - https://kylin.apache.org/blog/2022/01/12/The-Future-Of-Kylin/ > > > > > - > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/KYLIN/Why+did+Youzan+choose+Kylin+4 > > > > > - https://kylin.apache.org/blog/ > > > > > > > > > > > > > > > > > > > > With warm regard > > > > > Xiaoxiang Yu > > > > > > > > > > > > > > > > > > > > On Fri, Nov 3, 2023 at 4:12 PM Nam Đỗ Duy > > > > wrote: > > > > > > > > > > > Dear Sir/Madam > > > > > > > > > > > > I am persuading my company to use Kylin as OLAP platform. > > > > > > > > > > > > Could you please give some fact or some document to my > presentation > > > > about > > > > > > the reason why we should choose Kylin comparing with other OLAP > > > > platform. > > > > > > > > > > > > Thank you very much > > > > > > > > > > > > > > > > > > > > >
Re: Why we choose Kylin
Yes, we have meetups in different cities, it can be searched. Besides, we communicate by email or zoom. With warm regard Xiaoxiang Yu On Tue, Nov 14, 2023 at 12:27 AM Nam Đỗ Duy wrote: > Hi Xiaoxiang, > > Please kindly let us know: > > My boss is asking that: how do you know the companies in “Who is using > Kylin” section are actually using Kylin…do they inform you that fact or do > you have any agreement with them? > > Thank you very much > > On Mon, 13 Nov 2023 at 09:34 Xiaoxiang Yu wrote: > > > 1. Which companies are using kylin now > > You can visit the home page https://kylin.apache.org, and go to 'Who is > > using Kylin?' part, > > you will be finding logos of these companies. > > > > 2. How do they use kylin’s capabilities in AI/ML projects? > > Currently I am focusing on Kylin itself. I did not have enough knowledge > in > > AI/ML. > > Here is what I know. > > As far as I know, Kylin used to provide a Python library, so Kylin can be > > integrated > > with some Python ML tools(such as > > https://docs.byzer.org/#/byzer-lang/en-us/ > > ), > > but I don't know if it still works at the moment. I think it needs some > > test and modification > > to make these work with Kylin 5. > > > > > > > > > > With warm regard > > Xiaoxiang Yu > > > > > > > > On Mon, Nov 13, 2023 at 10:00 AM Nam Đỗ Duy > > wrote: > > > > > Hi Xiaoxiang > > > > > > Regarding the reason why we should choose kylin please provide real > > > use-cases to help me answer our boss’s question: > > > > > > 1. Which companies are using kylin now > > > 2. How do they use kylin’s capabilities in AI/ML projects > > > > > > Thank you very much > > > > > > On Mon, 6 Nov 2023 at 13:42 Xiaoxiang Yu wrote: > > > > > > > Here are some blogs which can help you to introduce advantages of > > Kylin . > > > > > > > > - https://kylin.apache.org/blog/2022/01/12/The-Future-Of-Kylin/ > > > > - > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/KYLIN/Why+did+Youzan+choose+Kylin+4 > > > > - https://kylin.apache.org/blog/ > > > > > > > > > > > > > > > > With warm regard > > > > Xiaoxiang Yu > > > > > > > > > > > > > > > > On Fri, Nov 3, 2023 at 4:12 PM Nam Đỗ Duy > > > wrote: > > > > > > > > > Dear Sir/Madam > > > > > > > > > > I am persuading my company to use Kylin as OLAP platform. > > > > > > > > > > Could you please give some fact or some document to my presentation > > > about > > > > > the reason why we should choose Kylin comparing with other OLAP > > > platform. > > > > > > > > > > Thank you very much > > > > > > > > > > > > > > >
Re: Why we choose Kylin
Hi Xiaoxiang, Please kindly let us know: My boss is asking that: how do you know the companies in “Who is using Kylin” section are actually using Kylin…do they inform you that fact or do you have any agreement with them? Thank you very much On Mon, 13 Nov 2023 at 09:34 Xiaoxiang Yu wrote: > 1. Which companies are using kylin now > You can visit the home page https://kylin.apache.org, and go to 'Who is > using Kylin?' part, > you will be finding logos of these companies. > > 2. How do they use kylin’s capabilities in AI/ML projects? > Currently I am focusing on Kylin itself. I did not have enough knowledge in > AI/ML. > Here is what I know. > As far as I know, Kylin used to provide a Python library, so Kylin can be > integrated > with some Python ML tools(such as > https://docs.byzer.org/#/byzer-lang/en-us/ > ), > but I don't know if it still works at the moment. I think it needs some > test and modification > to make these work with Kylin 5. > > > > > With warm regard > Xiaoxiang Yu > > > > On Mon, Nov 13, 2023 at 10:00 AM Nam Đỗ Duy > wrote: > > > Hi Xiaoxiang > > > > Regarding the reason why we should choose kylin please provide real > > use-cases to help me answer our boss’s question: > > > > 1. Which companies are using kylin now > > 2. How do they use kylin’s capabilities in AI/ML projects > > > > Thank you very much > > > > On Mon, 6 Nov 2023 at 13:42 Xiaoxiang Yu wrote: > > > > > Here are some blogs which can help you to introduce advantages of > Kylin . > > > > > > - https://kylin.apache.org/blog/2022/01/12/The-Future-Of-Kylin/ > > > - > > > > > > > > > https://cwiki.apache.org/confluence/display/KYLIN/Why+did+Youzan+choose+Kylin+4 > > > - https://kylin.apache.org/blog/ > > > > > > > > > > > > With warm regard > > > Xiaoxiang Yu > > > > > > > > > > > > On Fri, Nov 3, 2023 at 4:12 PM Nam Đỗ Duy > > wrote: > > > > > > > Dear Sir/Madam > > > > > > > > I am persuading my company to use Kylin as OLAP platform. > > > > > > > > Could you please give some fact or some document to my presentation > > about > > > > the reason why we should choose Kylin comparing with other OLAP > > platform. > > > > > > > > Thank you very much > > > > > > > > > >
Re: Why we choose Kylin
thanks Xiaoxiang, we are providing B2B services to many big companies so if we can use kylin, in the future we can persuade many other big firms to use kylin too. On Mon, Nov 13, 2023 at 9:34 AM Xiaoxiang Yu wrote: > 1. Which companies are using kylin now > You can visit the home page https://kylin.apache.org, and go to 'Who is > using Kylin?' part, > you will be finding logos of these companies. > > 2. How do they use kylin’s capabilities in AI/ML projects? > Currently I am focusing on Kylin itself. I did not have enough knowledge in > AI/ML. > Here is what I know. > As far as I know, Kylin used to provide a Python library, so Kylin can be > integrated > with some Python ML tools(such as > https://docs.byzer.org/#/byzer-lang/en-us/ > ), > but I don't know if it still works at the moment. I think it needs some > test and modification > to make these work with Kylin 5. > > > > > With warm regard > Xiaoxiang Yu > > > > On Mon, Nov 13, 2023 at 10:00 AM Nam Đỗ Duy > wrote: > > > Hi Xiaoxiang > > > > Regarding the reason why we should choose kylin please provide real > > use-cases to help me answer our boss’s question: > > > > 1. Which companies are using kylin now > > 2. How do they use kylin’s capabilities in AI/ML projects > > > > Thank you very much > > > > On Mon, 6 Nov 2023 at 13:42 Xiaoxiang Yu wrote: > > > > > Here are some blogs which can help you to introduce advantages of > Kylin . > > > > > > - https://kylin.apache.org/blog/2022/01/12/The-Future-Of-Kylin/ > > > - > > > > > > > > > https://cwiki.apache.org/confluence/display/KYLIN/Why+did+Youzan+choose+Kylin+4 > > > - https://kylin.apache.org/blog/ > > > > > > > > > > > > With warm regard > > > Xiaoxiang Yu > > > > > > > > > > > > On Fri, Nov 3, 2023 at 4:12 PM Nam Đỗ Duy > > wrote: > > > > > > > Dear Sir/Madam > > > > > > > > I am persuading my company to use Kylin as OLAP platform. > > > > > > > > Could you please give some fact or some document to my presentation > > about > > > > the reason why we should choose Kylin comparing with other OLAP > > platform. > > > > > > > > Thank you very much > > > > > > > > > >
Re: Why we choose Kylin
1. Which companies are using kylin now You can visit the home page https://kylin.apache.org, and go to 'Who is using Kylin?' part, you will be finding logos of these companies. 2. How do they use kylin’s capabilities in AI/ML projects? Currently I am focusing on Kylin itself. I did not have enough knowledge in AI/ML. Here is what I know. As far as I know, Kylin used to provide a Python library, so Kylin can be integrated with some Python ML tools(such as https://docs.byzer.org/#/byzer-lang/en-us/ ), but I don't know if it still works at the moment. I think it needs some test and modification to make these work with Kylin 5. With warm regard Xiaoxiang Yu On Mon, Nov 13, 2023 at 10:00 AM Nam Đỗ Duy wrote: > Hi Xiaoxiang > > Regarding the reason why we should choose kylin please provide real > use-cases to help me answer our boss’s question: > > 1. Which companies are using kylin now > 2. How do they use kylin’s capabilities in AI/ML projects > > Thank you very much > > On Mon, 6 Nov 2023 at 13:42 Xiaoxiang Yu wrote: > > > Here are some blogs which can help you to introduce advantages of Kylin . > > > > - https://kylin.apache.org/blog/2022/01/12/The-Future-Of-Kylin/ > > - > > > > > https://cwiki.apache.org/confluence/display/KYLIN/Why+did+Youzan+choose+Kylin+4 > > - https://kylin.apache.org/blog/ > > > > > > > > With warm regard > > Xiaoxiang Yu > > > > > > > > On Fri, Nov 3, 2023 at 4:12 PM Nam Đỗ Duy > wrote: > > > > > Dear Sir/Madam > > > > > > I am persuading my company to use Kylin as OLAP platform. > > > > > > Could you please give some fact or some document to my presentation > about > > > the reason why we should choose Kylin comparing with other OLAP > platform. > > > > > > Thank you very much > > > > > >
Re: Why we choose Kylin
Hi Xiaoxiang Regarding the reason why we should choose kylin please provide real use-cases to help me answer our boss’s question: 1. Which companies are using kylin now 2. How do they use kylin’s capabilities in AI/ML projects Thank you very much On Mon, 6 Nov 2023 at 13:42 Xiaoxiang Yu wrote: > Here are some blogs which can help you to introduce advantages of Kylin . > > - https://kylin.apache.org/blog/2022/01/12/The-Future-Of-Kylin/ > - > > https://cwiki.apache.org/confluence/display/KYLIN/Why+did+Youzan+choose+Kylin+4 > - https://kylin.apache.org/blog/ > > > > With warm regard > Xiaoxiang Yu > > > > On Fri, Nov 3, 2023 at 4:12 PM Nam Đỗ Duy wrote: > > > Dear Sir/Madam > > > > I am persuading my company to use Kylin as OLAP platform. > > > > Could you please give some fact or some document to my presentation about > > the reason why we should choose Kylin comparing with other OLAP platform. > > > > Thank you very much > > >
Re: Why we choose Kylin
Thank you Xiaoxiang for your reply...Best Regards On Mon, Nov 6, 2023 at 1:42 PM Xiaoxiang Yu wrote: > Here are some blogs which can help you to introduce advantages of Kylin . > > - https://kylin.apache.org/blog/2022/01/12/The-Future-Of-Kylin/ > - > > https://cwiki.apache.org/confluence/display/KYLIN/Why+did+Youzan+choose+Kylin+4 > - https://kylin.apache.org/blog/ > > > > With warm regard > Xiaoxiang Yu > > > > On Fri, Nov 3, 2023 at 4:12 PM Nam Đỗ Duy wrote: > > > Dear Sir/Madam > > > > I am persuading my company to use Kylin as OLAP platform. > > > > Could you please give some fact or some document to my presentation about > > the reason why we should choose Kylin comparing with other OLAP platform. > > > > Thank you very much > > >
Re: Why we choose Kylin
Here are some blogs which can help you to introduce advantages of Kylin . - https://kylin.apache.org/blog/2022/01/12/The-Future-Of-Kylin/ - https://cwiki.apache.org/confluence/display/KYLIN/Why+did+Youzan+choose+Kylin+4 - https://kylin.apache.org/blog/ With warm regard Xiaoxiang Yu On Fri, Nov 3, 2023 at 4:12 PM Nam Đỗ Duy wrote: > Dear Sir/Madam > > I am persuading my company to use Kylin as OLAP platform. > > Could you please give some fact or some document to my presentation about > the reason why we should choose Kylin comparing with other OLAP platform. > > Thank you very much >
Why we choose Kylin
Dear Sir/Madam I am persuading my company to use Kylin as OLAP platform. Could you please give some fact or some document to my presentation about the reason why we should choose Kylin comparing with other OLAP platform. Thank you very much