Merged commit includes the following changes:

348491037  by Waymo Research:

    Fix tracking metrics build fail on github.

--
348482312  by Waymo Research:

    Doc fix

--

PiperOrigin-RevId: 348491037

Author: Waymo Research

docs/quick_start.md

@@ -12,7 +12,7 @@ As a first step, please visit https://www.waymo.com/open to gain access to the W
 ## System Requirements
 
 *   g++ 5 or higher.
-*   TensorFlow 1.15.0, 2.0.0, 2.1.0
+*   TensorFlow 1.15.0, 2.0.0, 2.1.0, 2.2.0, 2.3.0
 
 The code has two main parts. One is a utility written in C++ to compute the
 evaluation metrics. The other part is a set of
@@ -30,12 +30,11 @@ install it in most cases. Please see these
 [instructions](https://docs.bazel.build/versions/master/install.html) for other
 ways to install Bazel. We assume you have Python installed.
 ```bash
-sudo apt-get
-install --assume-yes pkg-config zip g++ zlib1g-dev unzip python3 python3-pip
-BAZEL_VERSION=3.1.0 wget
-https://github.com/bazelbuild/bazel/releases/download/${BAZEL_VERSION}/bazel-${BAZEL_VERSION}-installer-linux-x86_64.sh
-sudo bash bazel-${BAZEL_VERSION}-installer-linux-x86_64.sh sudo apt install
-build-essential
+sudo apt-get install --assume-yes pkg-config zip g++ zlib1g-dev unzip python3 python3-pip
+BAZEL_VERSION=3.1.0
+wget https://github.com/bazelbuild/bazel/releases/download/${BAZEL_VERSION}/bazel-${BAZEL_VERSION}-installer-linux-x86_64.sh
+sudo bash bazel-${BAZEL_VERSION}-installer-linux-x86_64.sh
+sudo apt install build-essential
 ```
 
 Configure .bazelrc. `./configure.sh`

waymo_open_dataset/metrics/ops/BUILD

@@ -28,6 +28,7 @@ py_library(
     srcs = ["py_metrics_ops.py"],
     data = [
         ":detection_metrics_ops.so",
+        ":tracking_metrics_ops.so",
     ],
 )
 
@@ -56,6 +57,31 @@ cc_binary(
     ],
 )
 
+cc_binary(
+    name = "tracking_metrics_ops.so",
+    srcs = [
+        "metrics_ops.cc",
+        "tracking_metrics_ops.cc",
+    ],
+    copts = [
+        "-pthread",
+    ],
+    linkshared = 1,
+    deps = [
+        ":utils",
+        "//waymo_open_dataset:label_cc_proto",
+        "//waymo_open_dataset/metrics:config_util",
+        "//waymo_open_dataset/metrics:tracking_metrics",
+        "//waymo_open_dataset/protos:breakdown_cc_proto",
+        "//waymo_open_dataset/protos:metrics_cc_proto",
+        "@com_google_absl//absl/container:flat_hash_map",
+        "@com_google_absl//absl/strings",
+        "@com_google_absl//absl/types:optional",
+        "@local_config_tf//:libtensorflow_framework",
+        "@local_config_tf//:tf_header_lib",
+    ],
+)
+
 # Tests
 py_test(
     name = "detection_metrics_ops_test",
@@ -71,3 +97,18 @@ py_test(
         "//waymo_open_dataset/protos:metrics_proto_py_pb2",
     ],
 )
+
+py_test(
+    name = "tracking_metrics_ops_test",
+    srcs = ["tracking_metrics_ops_test.py"],
+    python_version = "PY3",
+    deps = [
+        ":py_metrics_ops",
+        # Implicit python proto dependency.
+        # Implicit numpy dependency.
+        # Implicit tensorflow dependency.
+        "//waymo_open_dataset:label_proto_py_pb2",
+        "//waymo_open_dataset/protos:breakdown_proto_py_pb2",
+        "//waymo_open_dataset/protos:metrics_proto_py_pb2",
+    ],
+)