#DATA_MODELING
Explore tagged Tumblr posts
pcsite · 2 years ago
Text
Tumblr media
Predictive analytics is a powerful tool that helps businesses unlock insights from data and make data-driven decisions. It is increasingly being recognized as a crucial component of digital and data t... https://tinyurl.com/yk87hqyz
0 notes
salesforce-notes · 4 years ago
Link
0 notes
riteprosinc-blog · 6 years ago
Video
tumblr
Free Live Sessions #Data_Modelling & #Data_Analysis SAVE THE DATE : OCTOBER 26th, 2019(Saturday) 10 am - 12 noon & 1pm - 3pm www.ritepros.com Phone Number : 650-608-5234 2292 Walsh Ave, Santa Clara, CA 95050.
0 notes
joshuasm28 · 8 years ago
Text
Nauticfish Thusunt | Hands on Watch Review
Nauticfish Thusunt
As I have said many times before, In the world of watches, the competition is fierce. You may have not heard of Nauticfish if you are newer to the watch world, but they have been around for at least 10 years. They are brand that honestly had dropped off my radar for a bit, until I saw them posting about this new model on social media. The new model is the Nauticfish Thusunt (Thousand) and while it has great specs and is obviously a dive watch, I feel the design itself may have been a little safe. It reminds me of a Deep Blue and a Benarus Moray. That is not necessarily a bad thing either, both of those brands make attractive watches. The Thusunt is not exactly cheap though either, coming in around $900, as it houses an ETA 2824 automatic movement. So, is it worth the price, or more specifically, will you think it is worth the price. Keep reading for the full details.
Nauticfish Thusunt Specifications:
43mm Case Width
48mm Lug to Lug
16mm Thick
22mm Lug Width
Domed Sapphire Crystal
1000 Meters Water Resistant
Leather, Rubber, or Steel Bracelet Options
Price $938 USD
http://www.nauticfish.com/asp/home/index.asp?Programm=211&Suchen=&Data_Art=0&Data_Typ=0&Data_Material=0&Data_Werk=0&Data_Zustand=0&Data_Sort=1&Data_Sortwie=&data_Hersteller=873&data_modell=0&OK=Search+now
The aesthetics of the Nauticfish Thusunt are pleasing, even if familiar. The markers and hands are easy to see, the bezel ratchets nicely and the crown is nicely protected by machined crown guards. I do feel the screws on the bezel were not necessary. They do not add any function and I’m not sure they add anything in the looks department either. The white hour and minute hand look like they have tritium lume applied to them, but it is just the way the lume paint was applied, no tritium on this watch. The second hand is not lumed either, but more on that in a bit. True to the all “tool” watch diver look, the case is all satin brushed and I will say it is all uniform and even, the whole watch feels very well put together and finished.
Something I am sure some out there are sick of me saying is that the HRV or Helium Release Valve is not needed and watch companies should stop putting them on the watch. I have gone in-depth on this subject before, so if you are not familiar with why it is completely unnecessary, I ask you to google it and you should find the info easily. I will say even though I find the HRV to be overkill, at least on this Nauticfish Thusunt they decided to give it a black PVD coating that I think kinda looks cool, at least better than what it normally looks like. On the other hand people may start asking why you have a button on the side of your watch and what does it do. If they do that, tell them it ruins the credit of people that ask silly questions. They will probably get the point quick.
The profile of the bezel and the case itself have that rugged diver look about it and the bezel is easy to grasp and turn, as it should be. Being 1000 meters water resistant that does make the case back thicker than say something 200 meters water resistant, but the back is not domed so you don’t get that bubble back type of deal where it raises up on your wrist a bit. Even though the Nauticfish Thusunt is 43mm in width, the case back and the domed crystal give it an overall much chunkier appearance than it really is, but some people are going to love that.
Beating away inside the Nauticfish 2824, one of the most popular movements put in automatic watches over the past 20 years. It is for a reason of course, it has been proven to be reliable, accurate and has a nice smooth sweep because of its high beat rate. Of course, it still is a standard base Swiss Automatic that gets the job done. Fortunately Nauticfish went with a solid case back and didn’t try to show off the movement just for the sake of showing off the movement. There is nothing to see anyways, it is rather plain looking.
I love leather and I do not really mind it on dive watches, but I do admit it is rather odd to ship a dive watch mounted on a leather strap. Nauticfish does include a silicone rubber in the box as well, and I love the leather strap they used, it is phenomal and feels great against the wrist. I think many would agree though that a bracelet or a really great custom natural rubber strap would have been nice at this price point. If you do not actually plan to take it into the water at all though,    the leather really is great.
The one thing I really did not mention yet is the gradient dial. I will be honest, I first I was not sure if the watch had a gradient dial or not. I might still not be. It is not easy to photograph because of the domed sapphire and the way the light hits it, and I really thought at first it was just a shadow effect. Looking closer though, you can see that it gets lighter towards the middle of the dial, gradually, and offers something other than a solid color dial. It is not a very vibrant gradient dial though, but after all, this is supposed to me more of a tool watch and not blingy. I think the wrist shot above shows it off the best.
The one major flaw of the Nauticfish Thusunt is the lume, or lack thereof. I have always stated I do not consider myself a lume junkie and being real, most of the time at night my phone is right there with me or I’m in the car and the time is right there etc. I have stated many times though, If you are going to apply lume to a watch, especially a dive watch, it should be good and last long. The pic below was after 45 seconds of exposure to light and it is the best it will look. While it may seem okay in this pic, check out the Youtube video above to see how quickly it starts to fade.
What’s the consensus here on the Nauticfish Thusunt? Well, I will say that the build quality and overall presentation is great and it does wear comfortable on the wrist, which is important. The lume is lacking and I would have liked if a bracelet were part of the package, as at this price point I think they are somewhat on the high side. Granted, every business is different and pricing is different to justify their costs. I don’t think everyone needs to compete with the $300 Kickstarter brands but at $700 I think there would be a bigger audience for these. Ultimately the decision is up to you, so what do you think? Leave your comments down below.
Edit* A bracelet option is offered for another $130 added to the cost, but it is not a nice beefy link bracelet with a great dive clasp, rather it is a somewhat generic looking mesh bracelet.
The post Nauticfish Thusunt | Hands on Watch Review appeared first on WatchReport.com.
0 notes
jorgar · 8 years ago
Text
Metrics Data Model Notes
Some notes on the data models of various metrics collection systems.
Performance Co-Pilot
Performance Co-Pilot is a metrics collection and visualization system heavily inspired by SNMP. PCP originates in the systems monitoring world.
PCP has a fairly rich vocabulary to describe metrics according to their type, semantics, dimensions and scale.
type is the fundamental data type of the metric, eg. string, uint32, uint64, double, binary
semantics describe the logical behaviour of a metric and can be counter, instant or discrete. Counters are increment-only metrics. Instantaneous metrics may increment or decrement but they vary over a continuous domain of values. Discrete metrics vary in arbitrary ways but don't represent a continuous value domain. For example, the total number of requests would be a counter, the number of currently executing requests would be instantaneous but the latency of the most recent request would be discrete.
dimensionality describes the resource dimension of the metrics; either space, time or count.
scale describes the the units of the metric dimension. For example a time dimension metric could be published in seconds or hours, and a space metric could be bytes or megabytes. The scale allows exporter to avoid datatype overflow and lets visualizers automatically rescale graphs to appropriate units.
Performance Metrics Descriptions - http://pcp.io/books/PCP_PG/html/LE11914-PARENT.html
Semantics, Dimensions, Scale - http://pcp.io/books/PCP_UAG/html/id5189172.html
Semantics - http://pcp.io/books/PCP_PG/html/id5190312.html
The PCP data model explicitly recognizes a single namespace dimension for metrics, the instance domain. This allows a single metric to have multiple named instances. The common uses case for this is for resources like CPU and Disk, where systems commonly have more than 1 of each kind of resource. There is no way to explicitly model multiple namespace dimensions so users typically resort to naming conventions and workarounds.
Graphite
Graphite is a metrics storage and visualization system.
The Graphite data model is extremely simple, consisting of just a metric name and a value. The data model itself doesn't distinguish between counters and instantaneous values, relying on operators to apply the appropriate conversion functions when creating graphs.
In general, users of graphite establish metric naming conventions to construct hierarchy and to represent namespace dimensionality. Units and metric documentation are also typically addresses by judicious metric nomenclature.
Prometheus
Prometheus is a metrics collection and visualization system with roots in both the systems and applications monitoring world. It seems quite heavily inspired by Graphite; it has a richer data model, though it still relies on metric naming conventions for some aspects of the data model.
The Prometheus data format allows the specification of metric documentation and type.
The fundamental metric types in the Prometheus data model are counters and gauges (instantaneous values). There is no explicit specification of the underlying data type, though protobuf exposition format specifies double in both cases.
Prometheus has 2 types of aggregate metrics, "summary" and "histogram". Both of these metric types include a sum (total of observed measurements), a count (of observations) and a set of histogram buckets. Summary metrics are intended for publishing pre-calculated quantiles, so are closely related to timed observations of request processing. Histograms are more general, with more arbitrary interpretation of buckets.
Data model - https://prometheus.io/docs/concepts/data_model/
Wire format - https://prometheus.io/docs/instrumenting/exposition_formats/
Comparisons - https://prometheus.io/docs/practices/histograms/ - https://prometheus.io/docs/introduction/comparison/
Prometheus explicitly supports arbitrary namespace dimensionality by allowing publishers to specify label pairs on metrics. Each unique set of label pairs implicitly creates a unique time series.
Circonus
Circonus is a complete monitoring infrastructure that includes data collection, metrics storage, graphing UI and alerting. Unlike other systems here, Circonus is designed to ingest metrics in a number of different serialization formats, including HTTP JSON checks, statsd, resmon, and others.
The Circonus data model consists of numbers, strings and histograms. For numeric data, Circonus doesn't distinguish and particular semantics, but always generates derived metrics that would be appropriate to both counters and gauges. Units and tags can be associated with a metric that is present in the data store.
Circonus applies heat map visualization to histogram data. It is not clear whether you need to clear the histogram bins between samples or whether Circonus will do the relevant arithmetic automatically (probably the latter?).
Dropwizard
Dropwizard is a Java library for metrics instrumentation. It provides a number of abstractions for collecting application metrics, and for publishing them to various collection systems.
The core Dropwizard Metrics types are Counter and Gauge, however these types represent implementation choices not metrics semantics as we see in other systems. For example, a Dropwizard Counter is allowed to be decremented, which violates counting semantics.
Dropwizard metrics do not have a notion of metric units and do not publish any per-metric documentation.
Compared to the Mesos implementation, Dropwizard has a richer set of Gauge metrics, including derived (based on the values from other Gauges) and cached (rate-limited) Gauges.
Dropwizard supports the concept of "reporters", which are adaptors that can present the Dropwizard metrics collection in a number fo different formats, eg. as JMX objects or a Graphite metrics stream.
0 notes
riteprosinc-blog · 6 years ago
Photo
Tumblr media
Free Live Sessions #Data_Modelling & #Data_Analysis SAVE THE DATE : OCTOBER 26th, 2019(Saturday) 10 am - 12 noon & 1pm - 3pm www.ritepros.com Phone Number : 650-608-5234 2292 Walsh Ave, Santa Clara, CA 95050.
0 notes
riteprosinc-blog · 6 years ago
Video
tumblr
Free Live Sessions #Data_Modelling & #Data_Analysis SAVE THE DATE : OCTOBER 26th, 2019(Saturday) 10 am - 12 noon & 1pm - 3pm www.ritepros.com Phone Number : 650-608-5234 2292 Walsh Ave, Santa Clara, CA 95050.
0 notes
riteprosinc-blog · 6 years ago
Photo
Tumblr media
Free Live Sessions#Data_Modelling & #Data_Analysis
SAVE THE DATE :OCTOBER 26th, 2019(Saturday)10 am - 12 noon & 1pm - 3pm
Phone Number : 650-608-5234
2292 Walsh Ave, Santa Clara, CA 95050.
0 notes