hana sps07 app function library

What´s New? SAP HANA SPS 07 SAP HANA Application Function Library (AFL)(Delta from SPS 06 to SPS 07)

SAP HANA Product Management November, 2013

© 2013 SAP AG. All rights reserved. 2Public

Contents

Overview

What’s New for SPS 07: Predictive Analysis Library

What’s New for SPS 07: Application Function Modeler

Overview


Application Function Library: General Overview – 1-

Application Function Library (AFL) – what is it? Pre-delivered commonly utilized business, predictive and other types of algorithms for use in projects or solutions that run on SAP HANA. The technology framework enabling the use of these algorithms is called the Application Function Library .

What are it’s benefits?

These algorithms can be leveraged directly in development projects, speeding up projects by avoiding writing custom complex algorithms from scratch. AFL operations also offer very fast performance, as AFL functions run in the core of SAP HANA in-memory DB.

What are its primary libraries?

The Predictive Analysis Library (PAL) is a set of functions in the AFL. It contains pre-built, parameter-driven, commonly used algorithms primarily related to predictive analysis and data mining.

The Business Function Library (BFL) is a set of functions in the AFL. It contains pre-built, parameter-driven, commonly used algorithms primarily related to finance.


The Application Function Library Framework in SAP HANA

Application Functions (C++)

SQLScript

HANA Clients (App Server, Analytics Technology, etc)

SAP HANA

Business Function Library

Predictive Analysis Library

AFL Framework

…

AFL Technology includesApplication Functions Written in C++ and delivered as AFL content by SAP Predictive Analysis and Business Function Library have been

released in SPS 05 as AFL content

AFL FrameworkOn demand library loading framework for registered and supported libraries AFL are consumed for use from SqlScript via so-called wrapper-

procedures. Consumption can be controlled via permissions.

Beyond the initial script-based approach, the Application Function Modeler is released with SPS 06 as a graphical editor to facilitate the design-time process of creating the wrapper-procedures and can easily be re-used as part of development workflow.

Parameter Table

AFM


Predictive Analysis Library – General Overview

Predictive Analysis Library (PAL)• Compiled analytic function library for predictive analysis in HANA SPS 05• Support multiple algorithms: K-Means, Association Analysis, C4.5 Decision Tree, Multiple

Linear Regression, Exponential Smoothing…

Know Your Business

Decide with Confidence

Compute Quickly

Uncover deep insights & patterns about the business: association rules, customer clustering, or sales prediction

Drive more advanced analyses. Decision is made with support from analysis numbers

Query and analyze data in real-time with high-performance computation in-memory

Help Customers To

Bring decision support capabilities to the business users through simplified experience and pre-built scenarios

Empower the business


The Predictive Analysis Library in SAP HANAFunctional Overview as of SPS 06

The Predictive Analysis Library (PAL) is a built-in C++ library to perform in-database data mining and statistical calculations, designed to provide excellent performance on large data sets.

Embedded in SAP HANA via the Application Function Library

Data Preparation Sampling Binning Scaling Convert Categorical to Binary

Outlier Detection Inter-Quartile Range Test (Tukey’s Test) Variance Test Anomaly Detection

Cluster Analysis ABC Classification DBSCAN K-Means Kohonen Self Organized Maps

Time Series Analysis Single Exponential Smoothing Double Exponential Smoothing Triple Exponential Smoothing

Link Prediction Different Measurements: Common

Neighbors; Jaccard’s Coefficient; Adamic/Adar; Katzβ

Other Weighted Scores Table

Classification Analysis C4.5 Decision Tree Analysis CHAID Decision Tree Analysis K Nearest Neighbour Multiple Linear Regression Polynomial Regression Exponential Regression Bi-Variate Geometric Regression Bi-Variate Logarithmic Regression Logistic Regression Naïve Bayes

Association Analysis Apriori Apriori Lite

Status: SAP HANA SPS 06.

Y

X Z


Application Function Modeler

Application Function Modeler A graphical editor to facilitate a faster and easier design-time process of creating the wrapper-procedures AFL Models are stored as repository objects and can easily be re-used as part of development workflow.

Library Selection

Function List and Search

Parameters and specificationsfor table types

Model Editor Drag‘n drop of functions Template for table types Data source selection and

automatic mappings to table types

Sample SQL for procedure

consumption

What’s New: Predictive Analysis Library


New Algorithms: Statistical Functions

Univariate Mean, median, variance, standard deviation Kurtosis Skewness

Multivariate Covariance matrix Pearson correlations coefficient matrix Chi-squared tests:

– test of quality of fit– test of independence

Variance equal test (F-test)


New Algorithms: Substitute Missing Values; Partitioning

Substitute missing values Continuous variable: replace the ‘null’ value with ‘mean’ or ‘median’ Categorical variable: replace the ‘null’ value with ‘mode’

Partitioning Splits an input table into 3 parts (training table, testing table and validation table).

Union could be a subset of the input table and the validation part could be empty Two partition methods are supported:

– Random Partition– Stratified Partition (stratified sampling)


New Algorithms: Support Vector Machine; Forecast Smoothing

Support Vector Machine A family of supervised machine learning algorithms that analyze data and

recognize patterns, typically used for classification and regression analysis Holds advantages over other supervised learning models: SVM models can be

either linear or non-linear

Forecast Smoothing Calculates a set of optimal parameters for PAL functions: Single Smoothing,

Double Smoothing and Triple Smoothing Outputs the forecasting result by using the best parameter Parameter optimization is based on global and local search algorithms


New Clustering Algorithms: Agglomerate Hierarchical; Affinity Propagation

Agglomerate Hierarchical Clustering Widely used clustering method which can find natural groups within a set of data Groups the data into a hierarchy or a binary tree of the subgroups The PAL version follows the agglomerate approach: merges the clusters with a

bottom-up strategy.

Affinity Propagation Clustering A relatively new clustering algorithm based on the concept of "message passing"

between data points Holds the advantage that the number of clusters does not necessarily have to be

predetermined


Enhancements to Regression Algorithms

Linear regression Support p-value for each coefficient Stepwise linear regression (forward and backward only)

Logistic regression Logistic regression with L1 regularization Categorical support for input variable p-value for coefficient


Enhancements to Other Algorithms

Apriori Output rules in relational format Add lift as a filter for rules Provide an option which controls the number of items in right hand side (1 or many)

Decision Tree Missing value handling in decision tree (mean/mode)

What’s New: Application Function Modeler


Application Function Modeler SPS 07 Features Overview

Drive AFM achieve a more stable and usable solution

Better integrate with AFL Framework.

UI Improvement: more friendly and usable

Better support the E2E Development Scenarios: create, activation, calling, delivery etc.

Others: Performance improvement, Error Handling

Objectives

Performance improvement: creation, model consistence check

Error Message: in studio side and server side Support open file offline but read-only …

Other

Better support the table type editing Better naming rule and icon Better UI Text

UI Improvement

Update table type constrains and default parameter Support new function in PAL (11 new functions) Use new AFL API to generate wrapper procedure Refactor the data model

AFL Framework

View support Better undo/redo Calling parameter remove/add/restore/persistence Schema mapping …

E2E Development Scenarios


AFM: New Functions

New Algorithm in AFM in SPS 07 Description Category AFM PAL

DBSCAN DBSCAN Clustering SPS 07 SPS 06

LINKPREDICTION Link Prediction Social network analysis SPS 07 SPS 06

CONV2BINARYVECTOR Convert category Type to Binary Vector Preprocessing SPS 07 SPS 06

SLIGHTSILHOUETTE Slight Silhouette Clustering SPS 07 SPS 06

NBCTRAIN NBCTRAIN Classification SPS 07 SPS 06

NBCPREDICT NBCPREDICT Classification SPS 07 SPS 06

HCAGGLOMERATE Hierarchical Clustering Clustering SPS 07 SPS 07

SVMTRAIN Train with Support Vector Machines Classification SPS 07 SPS 07

SVMPREDICT Predict with Support Vector Machines Classification SPS 07 SPS 07

PARTITION Data Partition Preprocessing SPS 07 SPS 07

SUBSTITUTE_MISS Substitute Missing Values Preprocessing SPS 07 SPS 07

….

11 new functions will be supported


AFM: Updated Generated Procedure Definition

New AFL Generator API in Runtime Plugin SPS 06: CREATE PROCEDURE ... LANGUAGE LLANG AS BEGIN ... SPS 07: CREATE PROCEDURE ... LANGUAGE AFLLANG SQL SECURITY INVOKER READS SQL DATA AS BEGIN ..


AFM: Table Type Editor & Parameter Editing

Table Type Editor

Parameter Editing

Support user add/remove parameter Provide restore defaults action


AFM: New Error Messages

Provide better error messages and provide the possible next step

Case Error Message(Client Side)

No required permission User does not have the AFL__SYS_AFL_AFLBFL_EXECUTE role. Assign the role first.

Table Type Configuration Error Table column setting does not match function specification

Calling with activation AFL Model (.aflpmml) file has not been activated. Activate the file before calling it.

… …(Server side Activation)

No schema sleeted Repository: Error in repository runtime extension. No schema selected. Select a schema.

No Function SelectedRepository: Error in repository runtime extension. No function in the model. Select a function.

Table Type has not been initialized Repository: Error in repository runtime extension. Add columns to the Dataset table.

File corruptRepository: Error in repository runtime extension. Invalid file. Check the file or create the file again.

… …


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This presentation outlines our general product direction and should not be relied on in making a purchase decision. This presentation is not subject to your license agreement or any other agreement with SAP.

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Thank youContact information

Ron SilbersteinSAP HANA Product [email protected]

To get the best overview of what’s new in SAP HANA SPS 07, read this blog.

mailto:[email protected]

http://www.saphana.com/community/blogs/blog/2013/11/20/whats-new-in-sap-hana-sps07


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hana sps07 app function library

Technology

sap predictive analysis

sap hana sps

sap ag

analytic function library

business function library

core of sap hana

demand library

afl functions