diff --git a/libsvm.spec b/libsvm.spec
index 0ec43ea..78be0b8 100644
--- a/libsvm.spec
+++ b/libsvm.spec
@@ -1,6 +1,6 @@
 Name:           libsvm
 Version:        2.84
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        A Library for Support Vector Machines
 
 Group:          Development/Libraries
@@ -23,27 +23,26 @@ LIBSVM is an integrated software for support vector classification,
 estimation (one-class SVM ). It supports multi-class classification.
 
 %package devel
-Summary:    A Library for Support Vector Machines
+Summary:    Header file, object file, and source files of libsvm in C and Java.
 Group:      Development/Libraries
 BuildRequires:  glibc-devel 
 Requires:       glibc
 Requires:       %{name} = %{version}-%{release}
 
 %description devel
-The libsvm-devel package includes the header file, object file, and
-soucre in C and Java.
+Header file, object file, and source files of libsvm in C and Java.
 Install this package if you want to develop programs with libsvm.
 
 %package python
-Summary:    A Library for Support Vector Machines
+Summary:    Python tools and interfaces for libsvm.
 Group:      Development/Libraries
 BuildRequires:  python >= 2.4 python-devel >= 2.4 gawk
 Requires:       python >= 2.4
 Requires:       %{name} = %{version}-%{release}
 
 %description python
-The libsvm-python provides tools and interface written in python,
-as well as source code. Install this package if you want to develop 
+Python tools and interfaces for libsvm.
+Install this package if you want to develop 
 programs with libsvm in Python.
 
 %prep
@@ -89,6 +88,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Thu Aug 30 2007 Ding-Yi Chen <dchen@redhat.com> - 2.84-4
+-  Refined description.
+
 * Mon Aug 27 2007 Ding-Yi Chen <dchen@redhat.com> - 2.84-3
 - Fix dependency problem