computer science

Truviso

Truviso is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Truviso rather than just read about it. In short: Truviso (pronounced true-VEE-so) is a continuous analytics, venture-backed, startup headquartered in Foster City, California developing and supporting its solution leveraging PostgreSQL, to deliver a proprietary analytics solutions for net-centric customers. Truviso was acquired by Cisco Systems, Inc. on May 4, 2012.

Key takeaways

Truviso belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Truviso to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Truviso from memory before moving on to harder problems.

Reference excerpt

Truviso (pronounced true-VEE-so) is a continuous analytics, venture-backed, startup headquartered in Foster City, California developing and supporting its solution leveraging PostgreSQL, to deliver a proprietary analytics solutions for net-centric customers. Truviso was acquired by Cisco Systems, Inc. on May 4, 2012.

History Truviso was founded in 2006 by UC Berkeley professor Michael J. Franklin and his Ph.D. student Sailesh Krishnamurthy, advancing on the research of Berkeley's Telegraph project. Truviso's TruCQ product leverages and extends the open source PostgreSQL database to enable analysis of streaming data, including queries that combine those streams with other streaming data or with historical/staged data. One public example of Truviso's customers using continuous analytics is the dynamic tag cloud visualization of blog indexer Technorati. Truviso is one of the pioneers in the continuous analytics space which seeks to alter how business intelligence is done—rather than accumulating data first and then running queries on the data set stored in a relational database or a data warehouse, Truviso has always-on queries which process streaming data as it arrives, continuously. For many queries this approach yields results hundreds or thousands of times faster and more efficiently. Truviso has received funding from ONSET Ventures, Diamondhead Ventures, and the UPS Strategic Enterprise Fund. Truviso was acquired by Cisco on May 4, 2012.

Technology Truviso's analytics approach is to have always-on queries analyzing streaming data. This strategy for handling continuously flowing data is different from traditional business intelligence approaches of first accumulating data and then running batch queries for reporting and analysis. Truviso has developed a continuous analytics solution to solve the challenges of high-volume, always-on data analysis. Truviso's solution is based on a scalable PostgreSQL platform capable of concurrent query execution, utilizing standard SQL against live streams of data. Truviso's approach enables analysis of heterogeneous data regardless of whether the data is flowing, staged, or some combination of the two.

Queries are continuous and always running so new results are delivered when the downstream application or use require them Data does not need to be stored or modified, so the system can keep up with enormous data volumes Thousands of concurrent queries can be run continuously and simultaneously on a single server Queries can be run over both real-time and historical data Incoming data can be optionally persisted for replay, backtesting, drill-down, or benchmarking On May 4, 2010, Truviso announced that the company developed a specific application for web analytics called Visitor Insight & Analytics.

See also Streaming Media List of streaming media companies Event Stream Processing (ESP) is technology that focuses on processing streams of related data. Event Driven Architecture (EDA) software architecture pattern promoting the production, detection, consumption of, and reaction to events. Real-time business intelligence Application of business intelligence to dynamic, real-time business processes Real-time computing CEP systems are typically real-time systems Operational Intelligence Both CEP and ESP are technologies that underpin operational intelligence.

References

External links Official website

Worked examples

Example 1 — a first encounter with Truviso

Start with the simplest possible case. Write down what Truviso claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Truviso before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Truviso ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Truviso

In research: Truviso appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Truviso in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Truviso is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2012 mergers and acquisitions, Analytics companies, Business intelligence companies, so understanding it makes those chapters shorter.
In everyday life: Look for Truviso outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Truviso in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Truviso means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Truviso out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Truviso in simple terms?

Why does Truviso matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Truviso?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Truviso.