Passion for Programming

PID namespaces : Every running process sees only a limited set of resources. This limited resource set is identified by notion of namespace. In linux kernel for PID namespaces to be enabled CONFIG_PID_NS has to be made true. Network namespaces :  Network support at operating system level contains network interface and routing table entries.There resources are typicall shared across entire OS. This typical behaviout can be altered by notion of Network Namespaces. With particular namespce we can isolate acess to network interface and routing table created hitherto. IPC namespace :  Message queues, shared memory or socket communication can all be isolated with IPC namespce support provided by operating system MNT namespace : Mount is a process abstration which enables access to storage devices.Notion of mount space enables OS to have isolated filesystems accessible to process that are executing. UTS namespace :  UTS stands for UNIX Tim...

First rule of document pre-processing : Improper pre-processing schemes may lead to losss of lexical content. Hence, pre-processings steps are unique to a problem. Having said that there are few pre-processing steps which applies to most of the application at hand. They are : a. tokenization b. normalization  c. substitution. Other well known pre-processing steps : a. Case folding b. Stemming c. Lemmatization d. Remove misspellings e. Punctuations. What is a stemming operation ? - Process of reducing a inflected word to its root. Where inflected word is a word with extra letter or letters added to nouns,verbs and adjectives in different grammatical forms. What is lemmatization ? - Here also there is reduction in inflected word to its root, however stemming resultant need not to be a proper word in vocabulary but in case of lemmatization word has be part of the given language vocabulary. What is case folding and its usage ? - Case-folding is a part of the Unicode s...

What does vector space model mean ? - It's an algebraic representation of text documents. Why do we need to represent text documents algebraically ?  - Typical algebric operations gets simpler to perform and visualize.  - Information retrival, filtering, indexing, ranking can be made with standard procedures and helps to have standardized measuring metrics around it. So how is vector space model helping in Information retrval ?

Here is the official website of HPC @ Uni.lu platform, which assembles information about the computing clusters operated by the  University of Luxembourg  and the organization running them :  https://hpc.uni.lu/ Page here :  https://ulhpc-tutorials.readthedocs.io/en/latest/parallel/basics/  , helps you get started for using the computing resources offerred by the platform. For learning OpenMP from scratch there is none better than this :  https://nptel.ac.in/courses/106102163/

With universal approximation theorem growing forward interms of Deep learning. Today we have deticated harware backends for machine learning backends. With many backend options available there are separate tool chains available for myraid deep learning backends. TVM open deep learning compiler stack is an effort in having a common software toolset to build models with harware backend abstracted. Do visit  here for more info : tvm.ai/about.

What are Microservices ? A dialect of service oriented architecure where the services are fine grained and loosely coupled. Also protocols for communication are lightweight. Whare are the major projects today in industry which are microservices ? Few companies which use microservices are : Comcast Cable,Uber,Netflix,Amazon,Ebay,Sound Cloud,Karma,Groupon. What are the problems in Service Oriented Architecture which microservices solved ?  - Allows skill set flexibility : Multiple technologies can be used to develop the parts isolated.  - Easy and less risky deployment : Replacing only the changed parts of the program.  - Individual services can be scaled.  - Application lifecycle flexibility : can develop individual services in isolation.  - Overall user experience improvement What is a monolithic architecture ? In monolithic application all ther requirements of the application will be provided by a single application abstraction. So, Is there a...

* Smart pointer classes are defined in <memory> header, so we need to include "memory" header to use smart pointers. * The header gives access to three template based smart pointers each with unique features. * We get "unique_ptr", "shared_ptr", "weak_ptr" *  Unique pointer are type of smart pointers that can’t be copied.std::unique_ptr is a smart pointer that owns and manages another object through a pointer and disposes of that object when the unique_ptr goes out of scope. *  Shared pointer is much like “unique_prt” but we can make copies of it. *  Weak pointer is a special case of shared pointer. Weak pointer helps in breaking circular references.Destruction using weak pointer will not care about destruction of other objects referenced from this present object under destruction.