Contents
What is semantic gap problem?
The “semantic gap” is a well-know problem in multimedia. The challenge is to accurately classify and effectively search multimedia content from automatically extracted low-level audio-visual features.
What is semantic gap in computing?
The difference between a data or language structure and the real world. For example, in order processing, a company can be both customer and supplier. Since there is no way to model this in a hierarchical database, the semantic gap is said to be large.
Why is the semantic gap important?
In the past, engineers tried to bridge the semantic gap by making microprocessors more complex, as with Complex Instruction Set Computing (CISC) models. The semantic gap illustrates the difference between humans and computers and how they process data.
What happens if semantic gap is covered by programmer?
Programmers must write code conforming to the idiosyncrasies of a programming language. Thus, there is often a disconnect between the intent of the developer and the meaning of the program. This semantic gap has a negative effect on programmer productivity, software reliability, and execution efficiency.
How can semantic gap be reduced?
The five basic semantic gap reduction techniques being discussed are: ontology, relevance feedback, machine learning, semantic template generation and web based image retrieval. These techniques can be integrated together to benefit from each other resulting in better performance than using either of them alone.
What is semantic gap and how it can be reduced in system software?
The semantic gap is reduced by programming languages (PL). The use of a PL introduces a new domain called the programming language domain (or PL domain). Execution gap Specification gap Application Domain PL Domain (problems, ideas, methods, to solve these problems) Execution Domain (machine code, devices, etc.)
What are consequences of semantic gap?
Consequences of Semantic Gap 1. Large development times 2. Large development efforts 3. Poor quality of software • Issues are tackled by Software Engineering through use of Programming Language.
How can semantic gap be minimized?
What is execution gap?
The execution gap is where the real problem lies, not in creating a winning 3 year strategic plan. Good companies have a 3-5 year strategic business plan, great companies also have execution ready quarterly plans to execute their growth initiatives.
What is language Migrator in system programming?
A language migrator bridges the specification gap between two PL’s. Language Processing Activities • Divided into those that bridge the specification gap and those that bridge the execution gap. 1. Program generation activities.
What is strategic execution?
Strategy execution is the implementation of a strategic plan in an effort to reach organizational goals. It comprises the daily structures, systems, and operational goals that set your team up for success. Even the best strategic plans can fall flat without the right execution.
When is the semantic gap relevant in Computer Science?
The semantic gap characterizes the difference between two descriptions of an object by different linguistic representations, for instance languages or symbols. In computer science, the concept is relevant whenever ordinary human activities, observations, and tasks are transferred into a computational representation (Wikipedia, n.d.f).
How are engineers trying to bridge the semantic gap?
In the past, engineers tried to bridge the semantic gap by making microprocessors more complex, as with Complex Instruction Set Computing (CISC) models. However, they found that it could be just as effective, if not more so, to design Reduced Instruction Set Computing (RISC) models.
Is the semantic gap in hierarchical databases big?
Since there is no way to model this in a hierarchical database, the semantic gap is said to be large. A network-structured database could handle this condition, resulting in a smaller semantic gap. See semantics.
How does OODBMSs help reduce the semantic gap?
OODBMSs (object-oriented database management system) advocates sometimes claim that these databases help to reduce the semantic gap between the application domain ( miniworld) and the traditional RDBMS systems.